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Sensorimotor therapy and time to full oral feeding in <33weeks infants
Abstract
Background:
Previous research has shown that oral stimulation improves feeding skills in preterm infants. However, it remains unclear whether other sensorimotor therapies have similar effect.
Objective:
To investigate the effect of sensorimotor therapy on the time to reach full oral feeding (FOF) in infants <33weeks.
Methods:
Retrospective review compared two time periods between 2009 and 2014, before (PRE TX) and after (POST TX) initiation of sensorimotor therapy to infants <33weeks. Type and number of sensorimotor therapy, time to FOF and length of stay (LOS) were collected. Statistical analysis used SPSS 22 for descriptive, non-parametric testing, chi-square and multivariate linear regression computation.
Results:
Of 245 records, 137 were excluded due to death, record unavailability/incompleteness or transfer. The remaining 55 in PRE TX and 53 in POST TX infants differed by small for gestational age (SGA) (36.4% vs. 28.3%, p=0.02); sepsis (81.8% vs. 54.7%, p=0.002); patent ductus arteriosus (PDA) (5.5% vs. 22.6%, p=0.01) and bradycardia (47.3% vs. 83%, p<0.0001). Infants in (POST TX) achieved FOF in 6.3±4.3days vs. 8.8±6.6days in (PRE TX) (p=0.02); their LOS was 56.8±26.4 vs. 52.2±25.1 (p=0.36). Predictors of days to FOF were any number of therapy sessions (β=-4.31; 95% CI: -6.47:-2.15), LOS (β=0.05; 95% CI: 0.004:0.09), PDA (β=3.23; 95% CI: 0.27:6.19) and bradycardia (β=2.94; 95% CI: 0.62:5.26).
Conclusion:
Providing any type of sensorimotor therapy decreased time to reach FOF in infants <33weeks. Structured guidelines may help optimize this effect.
... These studies have improved preterm infants' oral feeding skills by implementing sensorimotor interventions and tip-based feeding protocols for enhancing oral feeding performance. These sensorimotor interventions include the use of methods such as non-nutritive sucking, sucking-swallowing exercises, oral support, oral stimulation, tactile stimulation, kinesthetic stimulation, voice, smell and visual-auditory stimulations, etc. alone or in combination (Bala, Kaur, Mukhopadhyay, & Kaur, 2016;Govindarajan, Serane, Kadirvel, & Palanisamy, 2020;Jaywant & Kale, 2021;Knoll, Daramas, & Drake, 2019;Nyaga, Basiouny, Esamai, & Mansy, 2020;Rhooms et al., 2019;Rustam, Masri, Atallah, Tamim, & Charafeddine, 2016;Younesian, Yadegari, & Soleimani, 2015). ...
... This finding confirmed the H1 hypothesis: 'Sensorimotor interventions are effective on oral feeding readiness in preterm infants.' Most of the studies on the improvement of feeding skills and feeding readiness and early transition to oral feeding in the literature have been observed to include sensorimotor interventions and have shown similar results (Fucile et al., 2012;Iskandar, Suwondo, & Santoso, 2019;Lessen, 2011;Mahmoodi, Lessen Knoll, Keykha, Jalalodini, & Ghaljaei, 2019;Prade et al., 2016;Rustam et al., 2016). In the study by Prade et al. (2016), in which they investigated the relationship between oral feeding readiness and feeding performance of at least 32-week preterm infants in the NICU, it was found that oral feeding success increased as POFRAS scores increased. ...
... In their study, where they assigned 72 newborns into two groups and implemented T/KS intervention three times a day for ten days, Nyaga et al. (2020) found that T/KS decreased feeding tolerance and increased weight gain in moderate preterm newborns. In another study assessing the effect of sensorimotor therapy on the transition to oral feeding in preterm infants, it was determined that any sensorimotor therapy interventions shortened the time to reach full oral feeding (Rustam et al., 2016). In their study, Fucile et al. (2011) randomized 75 babies with a gestational age of 29-31 weeks into three groups. ...
Aim
This study aimed to examine the effect of sensorimotor interventions (SI) on feeding readiness and oral feeding success in preterm infants.
Method
A parallel, prospective, and randomized controlled study. The study data were collected between 1 June 2020–1 June 2021 and study sample comprised 60 preterm infants with a gestational age of 30–33 weeks. A combined sensorimotor intervention, including Tactile/Kinesthetic Stimulation + Non-nutritive sucking (NNS), was applied to the intervention group. The Control group applied only a SI as NNS.
Results
T-POFRAS feeding readiness scores were higher in the intervention group (p = 0.000). The feeding success level of the intervention was higher. Although hospital discharge time and transition to full breastfeeding of the intervention group were shorter, it was not statistically significant (p = 0.078).
Conclusion
It was found that combined SIs were effective in enhancing oral feeding readiness and feeding success levels in preterm infants.
... 28,29 En nuestro caso se procuró, siempre que fue posible, la alimentación al pecho, ya que la estimulación oral aumenta la probabilidad de que los RNP sean amamantados al momento del alta. 7,17 También Rustam et al. 30 lo apoyan así, pues en su estudio con controles históricos, al igual que en nuestro caso, los niños menores de 33 semanas de gestación que tuvieron estimulación oral se beneficiaron de un periodo más corto de alimentación enteral. Del mismo modo, en diferentes estudios se ha observado una disminución de los días para obtener la alimentación oral exclusiva. ...
... Del mismo modo, en diferentes estudios se ha observado una disminución de los días para obtener la alimentación oral exclusiva. 7,18,19,30,31,32 Peso, talla y perímetro craneal al alta Según los datos analizados en nuestro trabajo, hubo diferencias significativas entre los grupos en cuanto al peso (p = 0.00), mostrando que los niños que fueron estimulados consiguieron mayor peso. En cuanto a la talla de los neonatos al alta, también fue significativamente mayor en el grupo de estimulación (p = 0.01). ...
... Мета-аналіз свідчить про те, що нехарчове смоктання скорочує час до повного перорального харчування [227], а сенсомоторні втручання можуть покращити процес смоктання [228,229]. Накладки на соски можуть впливати на успішне грудне вигодовування, але відгуки суперечливі [230,231], і більшість не підтримує їх рутинне використання [232]. ...
A professional translation into Ukrainian of the updated ESPGHAN Nutrition Committee consensus statements and recommendations on nutrient intake and nutritional management for preterm infants with birth weight <1800 g. These recommendations can be used in clinical practice, but highlight the lack of convincing evidence in several topic areas and the need for further high quality research, especially studies that assess long-term functional outcomes. The article is accompanied by additional digital content that provides a more complete explanation of the literature and relevant physiology: introduction and overview; background on human milk; intake of water, protein, energy, fat, carbohydrate, electrolytes, minerals, trace elements, water-soluble vitamins and fat-soluble vitamins; feeding regimen, including minimum enteral feeding, rate of increase in feeding volume, management of gastric residues, gastric tube placement and bolus or continuous feeding Growth; breast milk, oral colostrum, donor breast milk and risk of cytomegalovirus infection; hydrolysed protein and osmolality; supplemental bionutrients and use of breast milk fortification.
... Meta-analysis suggests that nonnutritive sucking reduces time to full oral feeding (227), and sensorimotor interventions may improve the sucking process (228,229). Nipple shields may affect breastfeeding success, but reviews are contradictory (230,231) and most do not advocate routine use (232). ...
Objectives:
To review the current literature and develop consensus conclusions and recommendations on nutrient intakes and nutritional practice in preterm infants with birthweight <1800 g.
Methods:
The European Society of Pediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN) Committee of Nutrition (CoN) led a process that included CoN members and invited experts. Invited experts with specific expertise were chosen to represent as broad a geographical spread as possible. A list of topics was developed, and individual leads were assigned to topics along with other members, who reviewed the current literature. A single face-to-face meeting was held in February 2020. Provisional conclusions and recommendations were developed between 2020 and 2021, and these were voted on electronically by all members of the working group between 2021 and 2022. Where >90% consensus was not achieved, online discussion meetings were held, along with further voting until agreement was reached.
Results:
In general, there is a lack of strong evidence for most nutrients and topics. The summary paper is supported by additional supplementary digital content that provide a fuller explanation of the literature and relevant physiology: introduction and overview; human milk reference data; intakes of water, protein, energy, lipid, carbohydrate, electrolytes, minerals, trace elements, water soluble vitamins, and fat soluble vitamins; feeding mode including mineral enteral feeding, feed advancement, management of gastric residuals, gastric tube placement and bolus or continuous feeding; growth; breastmilk buccal colostrum, donor human milk, and risks of cytomegalovirus infection; hydrolyzed protein and osmolality; supplemental bionutrients; and use of breastmilk fortifier.
Conclusions:
We provide updated ESPGHAN CoN consensus-based conclusions and recommendations on nutrient intakes and nutritional management for preterm infants.
... The full oral feeding was found on the 6 th and 7 th day of the study with significant difference between the two groups. This finding was agreed with Rustam, [20] . finding that reported that infants who received any type of sensorimotor therapy reached at full oral feeding earlier than those who did not receive any type of therapy. ...
Background:
Most preterm neonates are unable to achieve independent oral feeding and are fed using tubes. Premature infant oral motor intervention (PIOMI) is effective in initiating early oral feeding and reducing hospital stays.
Objective:
This study aimed to evaluate the effectiveness of PIOMI on feeding performance, duration of hospital stay, and weight of preterm neonates in the neonatal intensive care unit (NICU).
Methods:
This was a parallel randomized controlled trial conducted in Egypt. Sixty preterm neonates born between 30 and 34 weeks of gestation were randomly selected (30 in the study group and 30 in the control group). The study was conducted at the NICU in Sohag, Egypt, over 3 months from October to December 2019. Two tools were used: demographic data of preterm neonates according to gestational age, sex, weight, and diagnosis, and PIOMI.
Results:
Among the preterm neonates in the study group, full oral feeding was achieved significantly earlier (P = .03), milk leakage decreased significantly (P = .001), weight was significantly higher (P = .018), and the duration of hospital stay was significantly lower (P = .014) than that in the control group.
Conclusion:
Premature infant oral motor intervention was effective in improving preterm neonates' feeding performance, reducing the duration of hospital stay, and increasing their weight. This study recommended that a training program for nurses in the NICU about PIOMI for preterm neonates be conducted, along with training of the parents to use PIOMI and the implementation of policies in the NICU to conduct PIOMI as a part of daily routine preterm neonatal care.
... Son escasos los estudios que, como el nuestro, comparan el efecto de la estimulación combinada Otros autores que utilizan combinaciones de intervenciones diferentes a la de nuestro estudio también constatan una mayor eficacia de los programas de estimulación combinada que la no intervención. Rustam et al. 34 comparan un grupo control de 55 RNPT con un grupo de intervención de 53 los estudios incluidos en la revisión, por lo que sus resultados se deben interpretar con precaución. ...
Resumen
Introducción
La alimentación oral de los recién nacidos pretérmino (RNPT) está dificultada por su inmadurez y enfermedades intercurrentes, lo que puede prolongar su estancia hospitalaria. El objetivo de este estudio fue valorar la efectividad de un programa que combina la estimulación táctil, kinestésica y oral (ET + K + O) frente a otro de estimulación oral sola (EO), en el tiempo necesario para lograr la alimentación independiente y el alta hospitalaria.
Pacientes y métodos
Estudio clínico de 2 grupos aleatorizados (EO vs. ET + K + O), realizado en 42 RNPT con una edad gestacional entre 27-32 semanas y un peso al nacimiento > 900 g. Los programas de estimulación fueron realizados en sesiones de 15 min, durante 10 días.
Resultados
Los RNPT del grupo de ET + K + O consiguieron antes la alimentación oral independiente, en comparación con el grupo de EO (24,9 ± 10,1 vs. 34,1 ± 15,6 días, p = 0,02). Se realizó un análisis de covarianza, observando que las covariables PN y EG tuvieron efectos significativos en el tiempo hasta alcanzar la alimentación por succión (peso al nacimiento: F[1, 38] = 5,79; p = 0,021; edad gestacional: F[1, 38] = 14,12; p = 0,001) y que una vez controlado su efecto, la intervención seguía teniendo un efecto significativo (F[1, 38] = 6,07; p = 0,018). El grupo de ET + K + O, en comparación con el de EO, consiguió antes el alta hospitalaria (39 ± 15 vs. 45 ± 18 días), si bien la diferencia no fue significativa (p = 0,21).
Conclusiones
Las terapias combinadas que asocian ET + K + O son más eficaces que la EO sola, para lograr la alimentación oral independiente en los RNPT.
... The literature defines FOF in different ways, and this is reflected in the guidelines. It is sometimes undefined [18,45]. Other definitions include 75% of nutritional needs taken orally [46,47], 100% of nutritional needs met orally for a continuous period with appropriate weight gain [25,28,48], or infant achieving "on demand" feeding [29]. ...
Objective
This scoping review describes the nature and evidence base of internationally available guidelines for the introduction of oral feeding for preterm infants in neonatal units.
Study design
Thirty-nine current infant oral feeding introduction guidelines were obtained, and their recommendations contrasted with available scientific literature.
Result
Documents were primarily from the USA, UK, Canada, and Australia, from hospitals, regional health authorities, and journal articles. Specifics of nonnutritive sucking, gestational age at first feed, exclusions to oral feeding, suggested interventions, and the definition of full oral feeding varied between documents. There was variable use of scientific evidence to back up recommendations.
Conclusion
Guidelines for oral feeding, whether written by clinicians or researchers, vary greatly in their recommendations and details of interventions. Areas more widely researched were more commonly discussed. Recommendations varied more when evidence was not available or weak. Guideline developers need to synthesize evidence and local variability to create appropriate guidelines.
Background:
Preterm infants (< 37 weeks' post-menstrual age (PMA)) are often delayed in attaining oral feeding. Normal oral feeding is suggested as an important outcome for the timing of discharge from the hospital and can be an early indicator of neuromotor integrity and developmental outcomes. A range of oral stimulation interventions may help infants to develop sucking and oromotor co-ordination, promoting earlier oral feeding and earlier hospital discharge. This is an update of our 2016 review.
Objectives:
To determine the effectiveness of oral stimulation interventions for attainment of oral feeding in preterm infants born before 37 weeks' PMA.
Search methods:
Searches were run in March 2022 of the following databases: CENTRAL via CRS Web; MEDLINE and Embase via Ovid. We also searched clinical trials databases and the reference lists of retrieved articles for randomised controlled trials (RCTs) and quasi-randomised trials. Searches were limited by date 2016 (the date of the search for the original review) forward. Note: Due to circumstances beyond our control (COVID and staffing shortages at the editorial base of Cochrane Neonatal), publication of this review, planned for mid 2021, was delayed. Thus, although searches were conducted in 2022 and results screened, potentially relevant studies found after September 2020 have been placed in the section, Awaiting Classification, and not incorporated into our analysis.
Selection criteria:
Randomised and quasi-randomised controlled trials comparing a defined oral stimulation intervention with no intervention, standard care, sham treatment or non-oral intervention (e.g. body stroking protocols or gavage adjustment protocols) in preterm infants and reporting at least one of the specified outcomes.
Data collection and analysis:
Following the updated search, two review authors screened the titles and abstracts of studies and full-text copies when needed to identify trials for inclusion in the review. The primary outcomes of interest were time (days) to exclusive oral feeding, time (days) spent in NICU, total hospital stay (days), and duration (days) of parenteral nutrition. All review and support authors contributed to independent extraction of data and analysed assigned studies for risk of bias across the five domains of bias using the Cochrane Risk of Bias assessment tool. The GRADE system was used to rate the certainty of the evidence. Studies were divided into two groups for comparison: intervention versus standard care and intervention versus other non-oral or sham intervention. We performed meta-analysis using a fixed-effect model.
Main results:
We included 28 RCTs (1831 participants). Most trials had methodological weaknesses, particularly in relation to allocation concealment and masking of study personnel. Oral stimulation compared with standard care Following meta-analysis, it is uncertain whether oral stimulation reduces the time to transition to oral feeding compared with standard care (mean difference (MD) -4.07 days, 95% confidence interval (CI) -4.81 to -3.32 days, 6 studies, 292 infants; I2 =85%, very low-certainty evidence due to serious risk of bias and inconsistency). Time (days) spent in the neonatal intensive care unit (NICU) was not reported. It is uncertain whether oral stimulation reduces the duration of hospitalisation (MD -4.33, 95% CI -5.97 to -2.68 days, 5 studies, 249 infants; i2 =68%, very low-certainty evidence due to serious risk of bias and inconsistency). Duration (days) of parenteral nutrition was not reported. Oral stimulation compared with non-oral intervention Following meta-analysis, it is uncertain whether oral stimulation reduces the time to transition to exclusive oral feeding compared with a non-oral intervention (MD -7.17, 95% CI -8.04 to -6.29 days, 10 studies, 574 infants; I2 =80%, very low-certainty evidence due to serious risk of bias, inconsistency and precision). Time (days) spent in the NICU was not reported. Oral stimulation may reduce the duration of hospitalisation (MD -6.15, 95% CI -8.63 to -3.66 days, 10 studies, 591 infants; I2 =0%, low-certainty evidence due to serious risk of bias). Oral stimulation may have little or no effect on the duration (days) of parenteral nutrition exposure (MD -2.85, 95% CI -6.13 to 0.42, 3 studies, 268 infants; very low-certainty evidence due to serious risk of bias, inconsistency and imprecision).
Authors' conclusions:
There remains uncertainty about the effects of oral stimulation (versus either standard care or a non-oral intervention) on transition times to oral feeding, duration of intensive care stay, hospital stay, or exposure to parenteral nutrition for preterm infants. Although we identified 28 eligible trials in this review, only 18 provided data for meta-analyses. Methodological weaknesses, particularly in relation to allocation concealment and masking of study personnel and caregivers, inconsistency between trials in effect size estimates (heterogeneity), and imprecision of pooled estimates were the main reasons for assessing the evidence as low or very low certainty. More well-designed trials of oral stimulation interventions for preterm infants are warranted. Such trials should attempt to mask caregivers to treatment when possible, paying particular attention to blinding of outcome assessors. There are currently 32 ongoing trials. Outcome measures that reflect improvements in oral motor skill development as well as longer term outcome measures beyond six months of age need to be defined and used by researchers to capture the full impact of these interventions.
Introduction
Oral feeding of preterm newborns (PTNB) is hampered by their immaturity and intercurrent diseases, which can prolong their hospital stay. The objective of this study was to assess the effectiveness of a program that combines tactile, kinesthetic and oral stimulation (T + K + OS) compared to another intervention based on exclusively oral stimulation (OS), in the time necessary to achieve independent feeding and hospital discharge.
Patients and methods
A clinical study of 2 randomized groups (OS vs. T + K + OS) was carried out on 42 PTNB with gestational age between 27-32 weeks and birth weight > 900 g. The stimulation programs were carried out in sessions of 15 min, for 10 days.
Results
The PTNBs in the T + K + OS group achieved independent oral feeding earlier, compared to the OS group (24.9 ± 10.1 vs. 34.1 ± 15.6 days, P = .02). An analysis of covariance was performed, which confirmed that the birth weight and gestational age covariates had significant effects on time to reach suction feeding (birth weight: F[1, 38] = 5.79; P = .021; gestational age: F[1, 38] = 14.12; P = .001) and that once its effect was controlled, the intervention continued to have a significant effect (F[1, 38] = 6.07; P = .018). The T + K + OS group, compared to the OS group, achieved an earlier hospital discharge (39 ± 15 vs. 45 ± 18 days), although the differences were not significant (P = .21).
Conclusions
Combined therapies that include T + K + OS are more effective than OS alone, in order to achieve independent oral feeding in PTNBs.
In the United States, preterm birth rates have steadily increased since 2014. Despite the recent advances in neonatal-perinatal care, more than 40% of very low-birth-weight infants develop chronic lung disease (CLD) and almost 25% have feeding difficulties resulting in delayed achievement of full oral feeds and longer hospital stay. Establishment of full oral feeds, a major challenge for preterm infants, becomes magnified among those on respiratory support and/or with CLD. The strategies to minimize aerodigestive disorders include supporting nonnutritive sucking, developing infant-directed feeding protocols, sensory oromotor stimulation, and early introduction of oral feeds.
The hospital discharge of premature infants in neonatal intensive care units is often delayed due to their inability to feed by mouth safely and competently. With immature physiologic functions, infants born prematurely cannot be expected to readily feed by mouth at the equivalent age of a third trimester of gestation as the majority of their term counterparts do. Consequently, it is crucial that health care professionals gain an adequate knowledge of the development of preterm infants' oral feeding skills so as to optimize their safety and competency as they transition to oral feeding. With a greater sensitivity toward their immature skills, we can offer these infants a safer and smoother transition to independent oral feeding than is currently observed. This review article is an overview of the evidence-based research undertaken over the past 2 decades on the development of very-low-birth-weight infants' oral feeding skills. The description of the different functional levels where these infants can encounter hurdles may assist caregivers in identifying a potential cause or causes for their individual patients' oral feeding difficulties.
Preterm infants' hospital discharge is often delayed due to their inability to feed by mouth safely and competently. No evidence-based supported guidelines are currently available for health-care professionals caring for these infants. Available interventions advocating benefits are not readily acknowledged for lack of rigorous documentation inasmuch as any improvements may ensue from infants' normal maturation. Through research, a growing understanding of the development of nutritive sucking skills has emerged, shedding light on how and why infants may encounter oral feeding difficulties due to the immaturity of specific physiologic functions. Unfortunately, this knowledge has yet to be translated to the clinical practice to improve the diagnoses of oral feeding problems through the development of relevant assessment tools and to enhance infants' oral feeding skills through the development of efficacious preventive and therapeutic interventions. This review focuses on the maturation of the various physiologic functions implicated in the transport of a bolus from the oral cavity to the stomach. Although infants' readiness for oral feeding is deemed attained when suck, swallow, and respiration are coordinated, we do not have a clear definition of what coordination implies. We have learned that each of these functions encompasses a number of elements that mature at different times and rates. Consequently, it would appear that the proper functioning of sucking, the swallow processing, and respiration need to occur at two levels: first, the elements within each function must reach an appropriate functional maturation that can work in synchrony with each other to generate an appropriate suck, swallow process, and respiration; and second, the elements of all these distinct functions, in turn, must be able to do the same at an integrative level to ensure the safe and efficient transport of a bolus from the mouth to the stomach. © 2015 S. Karger AG, Basel.
The survival rates of preterm infants has increased over the last years, but oral feeding difficulties are the most common problems encountered by them.
This study aimed at comparing the effects of non-nutritive sucking (NNS) and pre-feeding oral stimulation on feeding skills, length of hospital stay and weight gain of 26-32 weeks gestational age preterm infants in NICU, to determine the more effective intervention.
Thirty-two preterm infants were assigned randomly into three groups. One intervention group received pre-feeding oral stimulation program and the other received non-nutritive sucking stimulation, while the control group received a sham intervention. Gestational age of infants was calculated during 1, 4 and 8 oral feeding and discharge time from NICU. The infants' weights were measured weekly from birth and at discharge time.
Mean gestational age on 8 time oral feeding per day, in 3 groups was not significant (P = 0.282). Although NNS and pre-feeding oral stimulation groups has fulfilled this criterion 7.55 and 6.07 days sooner than the control group, respectively (a result which is of great clinical and economic importance), but the difference did not reach statistical significance. Weight gaining at discharge time in NNS group was significantly higher than control and pre-feeding oral stimulation groups (P < 0.05).
This study revealed that pre-feeding oral stimulation and NNS programs both were effective on oral feeding skills and weight gaining of the immature newborns. Yet, it seems that NNS program was more effective than pre-feeding oral stimulation on weight gaining.
Background:
One of the limiting factors for early hospital discharge in preterm infants is their inability to feed sufficiently to obtain consistent weight gain. Therefore, feeding difficulty is one of the most significant issues with which a preterm infant is faced.
Objectives:
The purpose of this study was to examine the effect of oral sensory motor stimulation on feeding performance, length of hospital stay, and weight gain in preterm infants at 30 - 32 weeks of gestational age.
Patients and methods:
Premature infants (n = 20) were randomly assigned to experimental and control groups. The experimental group received oral sensory motor stimulation of the oral structures (15 minutes / day) for 10 successive days, while these stimulations were not offered to the control group. Days elapsed to achieve oral feeding, length of hospital stay, and weight gain in the two groups were assessed.
Results:
Transition to oral feeding was acquired significantly earlier in the infants in the experimental group than in the controls: 13 and 26 days, respectively (P < 0.001). Likewise, the length of hospitalization was significantly shorter in the experimental group than in the control group: 32 days and 38 days, correspondingly (P < 0.05). The two groups showed no significant difference in terms of weight gain in the first, second, third, and fourth weeks of birth: first week: 100 vs. 110; second week: 99 vs. 111; third week: 120 vs. 135; and fourth week: 129 vs. 140.
Conclusions:
The present research revealed that the number of days to reach oral feeding in our preterm babies was decreased by oral motor stimulation, which in turn conferred earlier hospital discharge.
Background. The purpose of this study of preterm infants was to test the effect of four approaches to the time of transition from gavage to full oral feedings, time to discharge, and weight gain during the transition. Methods. A randomized experimental design was used with four intervention groups: early start (32 weeks’ postmenstrual age)/slow progressing experience (gradually increasing oral feedings offered per day); early start/maximum experience (oral feedings offered at every feeding opportunity); late start (34 weeks’ postmenstrual age)/slow progressing experience; and late start/maximum experience. Results. The analysis included 86 preterm infants. Once oral feedings were initiated, infants in the late start/maximum experience group achieved full oral feeding and were discharged to home significantly sooner than infants in either early start group. Although not significantly different, these infants also achieved these outcomes sooner than infants in the late start/slow progressing experience group. There were no differences in weight gain across groups. Conclusions. Results suggest starting oral feedings later in preterm infants may result in more rapid transition to full oral feedings and discharge although not at early postnatal ages. Provision of a more consistent approach to oral feeding may support infant neurodevelopment and reduce length of hospitalization.
Foetal movements commence at seven weeks of gestation, with the foetal movement repertoire including twitches, whole body movements, stretches, isolated limb movements, breathing movements, head and neck movements, jaw movements (including yawning, sucking and swallowing) and hiccups by ten weeks of gestational age. There are two key biomechanical aspects to gross foetal movements; the first being that the foetus moves in a dynamically changing constrained physical environment in which the freedom to move becomes increasingly restricted with increasing foetal size and decreasing amniotic fluid. Therefore, the mechanical environment experienced by the foetus affects its ability to move freely. Secondly, the mechanical forces induced by foetal movements are crucial for normal skeletal development, as evidenced by a number of conditions and syndromes for which reduced or abnormal foetal movements are implicated, such as developmental dysplasia of the hip, arthrogryposis and foetal akinesia deformation sequence. This review examines both the biomechanical effects of the physical environment on foetal movements through discussion of intrauterine factors, such as space, foetal positioning and volume of amniotic fluid, and the biomechanical role of gross foetal movements in human skeletal development through investigation of the effects of abnormal movement on the bones and joints. This review also highlights computational simulations of foetal movements that attempt to determine the mechanical forces acting on the foetus as it moves. Finally, avenues for future research into foetal movement biomechanics are highlighted, which have potential impact for a diverse range of fields including foetal medicine, musculoskeletal disorders and tissue engineering.
Twenty healthy preterm infants (gestational age 26 to 33 weeks, postmenstrual age [PMA] 32.1 to 39.6 weeks, postnatal age [PNA] 2.0 to 11.6 weeks) were studied weekly from initiation of bottle feeding until discharge, with simultaneous digital recordings of pharyngeal and nipple (teat) pressure and nasal thermistor and thoracic strain gauge readings. The percentage of sucks aggregated into‘runs’(defined as ≥ 3 sucks with ≤ 2 seconds between suck peaks) increased over time and correlated significantly with PMA (r=0.601, p<0.001). The length of the sucking-runs also correlated significantly with PMA (r=0.613, p<0.001). The stability of sucking rhythm, defined as a function of the mean/SD of the suck interval, was also directly correlated with increasing PMA (r=0.503, p=0.002), as was increasing suck rate (r=0.379, p<0.03). None of these measures was correlated with PNA. Similarly, increasing PMA, but not PNA, correlated with a higher percentage of swallows in runs (r=0.364, p<0.03). Stability of swallow rhythm did not change significantly from 32 to 40 weeks’PMA. In low-risk preterm infants, increasing PMA is correlated with a faster and more stable sucking rhythm and with increasing organization into longer suck and swallow runs. Stable swallow rhythm appears to be established earlier than suck rhythm. The fact that PMA is a better predictor than PNA of these patterns lends support to the concept that these patterns are innate rather than learned behaviors. Quantitative assessment of the stability of suck and swallow rhythms in preterm infants may allow prediction of subsequent feeding dysfunction as well as more general underlying neurological impairment. Knowledge of the normal ontogeny of the rhythms of suck and swallow may also enable us to differentiate immature (but normal) feeding patterns in preterm infants from dysmature (abnormal) patterns, allowing more appropriate intervention measures.
Preterm birth is the second largest direct cause of child deaths in children younger than 5 years. Yet, data regarding preterm birth (<37 completed weeks of gestation) are not routinely collected by UN agencies, and no systematic country estimates nor time trend analyses have been done. We report worldwide, regional, and national estimates of preterm birth rates for 184 countries in 2010 with time trends for selected countries, and provide a quantitative assessment of the uncertainty surrounding these estimates.
METHODS: We assessed various data sources according to prespecified inclusion criteria. National Registries (563 datapoints, 51 countries), Reproductive Health Surveys (13 datapoints, eight countries), and studies identified through systematic searches and unpublished data (162 datapoints, 40 countries) were included. 55 countries submitted additional data during WHO's country consultation process. For 13 countries with adequate quality and quantity of data, we estimated preterm birth rates using country-level loess regression for 2010. For 171 countries, two regional multilevel statistical models were developed to estimate preterm birth rates for 2010. We estimated time trends from 1990 to 2010 for 65 countries with reliable time trend data and more than 10,000 livebirths per year. We calculated uncertainty ranges for all countries.
FINDINGS: In 2010, an estimated 14·9 million babies (uncertainty range 12·3-18·1 million) were born preterm, 11·1% of all livebirths worldwide, ranging from about 5% in several European countries to 18% in some African countries. More than 60% of preterm babies were born in south Asia and sub-Saharan Africa, where 52% of the global livebirths occur. Preterm birth also affects rich countries, for example, USA has high rates and is one of the ten countries with the highest numbers of preterm births. Of the 65 countries with estimated time trends, only three (Croatia, Ecuador, and Estonia), had reduced preterm birth rates 1990-2010.
INTERPRETATION: The burden of preterm birth is substantial and is increasing in those regions with reliable data. Improved recording of all pregnancy outcomes and standard application of preterm definitions is important. We recommend the addition of a data-quality indicator of the per cent of all live preterm births that are under 28 weeks' gestation. Distinguishing preterm births that are spontaneous from those that are provider-initiated is important to monitor trends associated with increased caesarean sections. Rapid scale up of basic interventions could accelerate progress towards Millennium Development Goal 4 for child survival and beyond.
FUNDING: Bill & Melinda Gates Foundation through grants to Child Health Epidemiology Reference Group (CHERG) and Save the Children's Saving Newborn Lives programme; March of Dimes; the Partnership for Maternal Newborn and Childe Health; and WHO, Department of Reproductive Health and Research.
The aim of this study was to determine whether oral, tactile/kinaesthetic (T/K), or combined (oral+T/K) interventions enhance oral feeding performance and whether combined interventions have an additive/synergistic effect.
Seventy-five preterm infants (mean gestational age 29 wk; standard error of the mean [SEM] 0.3 wk; mean birthweight 1340.3g; SEM 52.5 g; 49 males and 26 females) were randomly assigned to one of three intervention groups or a control group. The oral group received sensorimotor input to the oral structures, the T/K group received sensorimotor input to the trunk and limbs, and the combined group received both. The outcomes were time from introduction of nipple feeding to independent oral feeding (d), proficiency (intake in the first 5 min, %), volume transfer (%), rate of transfer (mL/min), volume loss (%), and length of hospital stay (d).
Infants in the three intervention groups achieved independent oral feeding 9-10 days earlier than those in the control group (p<0.001; effect size 1.9-2.1). Proficiency (p ≤ 0.002; effect size 0.7-1.4) at the time of one to two and three to five oral feedings per day, volume transfer (p ≤ 0.001; effect size 0.8-1.1) at one to two, three to five, and six to eight oral feedings per day, and overall rate of transfer (p ≤ 0.018; effect size 0.8-1.1) were greater, and overall volume losses were less (p ≤ 0.007; effect size 0.9-1.1), than in the control group (p ≤ 0.042). The combined group attained independent oral feeding at a significantly younger postmenstrual age than controls (p=0.020) and had clinically greater proficiency than the T/K group (p=0.020; effect size 0.7) and oral group (p=0.109; effect size 0.5). Length of hospital stay was not significantly different between groups (p=0.792; effect size 0.02-0.3).
Oral and T/K interventions accelerated the transition from introduction to independent oral feeding and enhanced oral feeding skills. T/K has beneficial effects beyond the specific targeted system. The combined sensorimotor intervention led to an additive/synergistic effect for proficiency, further benefiting this population.
Purpose
To conduct an evidence-based systematic review and provide an estimate of the effects of oral motor interventions (OMIs) on feeding/swallowing outcomes (both physiological and functional) and pulmonary health in preterm infants.
Method
A systematic search of the literature published from 1960 to 2007 was conducted. Articles meeting the selection criteria were appraised by 2 reviewers and vetted by a 3rd for methodological quality.
Results
Twelve studies were included and focused on 3 OMIs—nonnutritive sucking (NNS), oral/perioral stimulation, and NNS plus oral/perioral stimulation. Six studies addressed the effects of OMI on the feeding/swallowing physiology outcomes of feeding efficiency or sucking pressures. Ten studies addressed the functional feeding/swallowing outcomes of oral feeding or weight gain/growth. No studies reported data on pulmonary health. Methodological quality varied greatly. NNS alone and with oral/perioral stimulation showed strong positive findings for improvement in some feeding/swallowing physiology variables and for reducing transition time to oral feeding. Prefeeding stimulation showed equivocal results across the targeted outcomes. None of the OMIs provided consistent positive results on weight gain/growth.
Conclusions
Although some OMIs show promise for enhancing feeding/swallowing in preterm infants, methodological limitations and variations in results across studies warrant careful consideration of their clinical use.
The aim of the present work was to assess the value of non-nutritive sucking (NNS) measures as predictors of oral feeding performance in comparison to other putative predictors of feeding skills: respiratory support, post-menstrual age (PMA) at birth and the neonatal oral motor assessment score (NOMAS).
This was a prospective, observational study. Cox proportional hazards and non-parametric rank sum tests were used to assess the relationship between NNS and feeding outcome measures. The setting was neonatal intensive care units (NICU) in rural/academic, urban/tertiary centres in the USA. In all, 51 premature infants born between 25 and 34 weeks' PMA, birth weight 1512.3+/-499.4 g, were included in this study. Interventions were measurement of NNS, standardised feeding advance schedule, performance of NOMAS, and standardised, permissive, oral feeding advance schedule.
were transition time from first to full oral feeding (FOF) and gestational age at FOF.
Higher NNS organisation scores predicted shorter transition to FOF (p<0.05): infants with a more organised suck pattern reached independent oral feeding 3 days earlier (16 vs 13 day transition) than infants with more chaotic patterns of suck bursts. Consistency of the suck waves also corresponded with feeding milestones: infants with more regular suck wave pressure deflections became competent oral feeders approximately 3 days earlier than those with irregular suck pressure waves. PMA at birth was inversely associated with PMA at FOF. NOMAS measures were not associated with outcome measures.
Measures of NNS organisation and suck consistency constitute useful candidate predictors of feeding performance by premature infants. The results accord with previous findings linking PMA at birth with age at independent feeding.
This study examined the effects of stroking and a perioral and intraoral prefeeding stimulation program on healthy, growing, preterm infants in a Level II special care nursery. Only infants without cardiac, gastrointestinal, or central nervous system problems were included in the study.
Two groups of nine randomly assigned, medically stable preterm infants, born between 30 weeks and 34 weeks gestation, were selected for the study. All infants were introduced to nipple feeding at approximately 34 weeks postconceptual age. The infants in the control group received a 5-min stroking protocol before feeding; the infants in the experimental group received a 5-min stroking protocol in addition to a perioral and intraoral stimulation program.
Compared with the control group, the experimental group had a decreased number of gavage feedings, greater weight gain, and fewer days of hospitalization. The experimental group also had higher scores on the Revised-Neonatal Oral Motor Assessment nutritive suck scale than the control group.
On a preliminary basis, the findings from this study establish the efficacy of occupational therapy in a Level II special care nursery for healthy, growing, preterm infants. Further, the specific treatment strategies conducted with the infants receiving the experimental procedures have also been preliminary established as effective in enhancing the infants' feeding skills, resulting in weight gain and decreased hospital stays as compared with their counterparts in the control group. However, our findings cannot be generalized to preterm infant populations who are at greater medical risk than the infants in our study because of the potentially hazardous effects that could result. Implications of the results for intervention programs and future research are discussed.
To determine whether transition from tube to all oral feeding can be accelerated by the early introduction of oral feeding in preterm infants. It is hypothesized that this shortened transition time will lead to earlier attainment of all oral feeding.
Twenty-nine infants (<30 weeks' gestation) were randomized to an intervention or control group. The intervention group (n = 13) was initiated to oral feeding 48 hours after achieving full tube feeding (120 kcal/kg/d), and the feeding progression followed a structured protocol. The oral feeding management of the control infants (n = 16) was left to the discretion of their attending physicians. Oral feeding progress was monitored for achievement of selected feeding milestones: achievement of first and all successful oral feedings. Feeding performance was assessed by overall transfer (percent volume transferred during a feeding/total volume offered) and rate of milk transfer (mL/min), which were measured from introduction of oral feeding to first successful oral feeding.
Infants in the experimental group, when compared with their control counterparts, were introduced to oral feeding significantly earlier (31.1 +/- 1.3 vs 33.7 +/- 0.9 weeks' postmenstrual age, respectively) and attained all oral feeding significantly earlier as well (34.5 +/- 1.6 vs 36.0 +/- 1.5 weeks' postmenstrual age, respectively). The transition time from full tube feeding to all oral feeding was 26.8 +/- 12.3 days for the experimental group and 38.4 +/- 14.0 days for the control group. Both groups of infants demonstrated similar increase in overall transfer and rate of milk transfer from introduction of oral feeding until achievement of first successful oral feeding.
Early introduction of oral feeding accelerates the transition time from tube to all oral feeding. This not only allows earlier attainment of all oral feeding, but it also provides practice opportunities that enhance the oral motor skills necessary for safe and successful feeding.
Objective:
The aim of this study was to determine the factors that predict the timing and age at which preterm infants (born 32-36 weeks gestation) commenced and attained full oral feeding.
Method:
We conducted a retrospective review of medical records of 647 preterm infants born 2005-2011. Infants were from six neonatal intensive care units in New Zealand, all World Health Organisation Baby-friendly Hospital Initiative accredited.
Results:
Median time to the first oral feed offered was one day and to the time of full oral feeding was 12 days. No infants attained full oral feeding before 33(+3) weeks post-menstrual age. Gestational age, birthweight, medical conditions and location of the neonatal unit were significantly associated with the time taken to commence and attain full oral feeding.
Conclusion:
This study highlights the factors that are associated with the rate at which late preterm infants commence oral feeding and progress to full oral feeding. These findings offer important considerations not only for clinical practice but also discharge planning given the preference for preterm infants reaching full oral feeds before discharge from hospital. Prospective experimental research is required to confirm infant, maternal and environmental factors that influence feeding milestones in late preterm infants. This article is protected by copyright. All rights reserved.
This Policy Statement was reafirmed May 2011 and November 2018
This policy statement updates the guidelines on discharge of the high-risk neonate first published by the American Academy of Pediatrics in 1998. As with the earlier document, this statement is based, insofar as possible, on published, scientifically derived information. This updated statement incorporates new knowledge about risks and medical care of the high-risk neonate, the timing of discharge, and planning for care after discharge. It also refers to other American Academy of Pediatrics publications that are relevant to these issues. This statement draws on the previous classification of high-risk infants into 4 categories: (1) the preterm infant; (2) the infant with special health care needs or dependence on technology; (3) the infant at risk because of family issues; and (4) the infant with anticipated early death. The issues of deciding when discharge is appropriate, defining the specific needs for follow-up care, and the process of detailed discharge planning are addressed as they apply in general to all 4 categories; in addition, special attention is directed to the particular issues presented by the 4 individual categories. Recommendations are given to aid in deciding when discharge is appropriate and to ensure that all necessary care will be available and well coordinated after discharge. The need for individualized planning and physician judgment is emphasized.
Background:
The ability of a preterm infant to exclusively oral feed is a necessary standard for discharge readiness from the neonatal intensive care unit (NICU). Many of the interventions related to oral feeding advancement currently employed for preterm infants in the NICU are based on individual nursing observations and judgment. Studies involving standardized feeding protocols for oral feeding advancement have been shown to decrease variability in feeding practices, facilitate shortened transition times from gavage to oral feedings, improve bottle feeding performance, and significantly decrease the length of stay (LOS) in the NICU.
Purpose:
This project critically evaluated the implementation of an oral feeding advancement protocol in a 74-bed level III NICU in an attempt to standardize the process of advancing oral feedings in medically stable preterm infants.
Methods:
A comprehensive review of the literature identified key features for successful oral feeding in preterm infants.
Results:
Strong levels of evidence suggested an association between both nonnutritive sucking (NNS) opportunities and standardized feeding advancement protocols with successful oral feeding in preterm infants. These findings prompted a pilot practice change using a feeding advancement protocol and consisted of NNS and standardized oral feeding advancement opportunities. Time to exclusive oral feedings and LOS were compared pre- and postprotocol implementation during more than a 2-month evaluation period.
Conclusions:
Infants using NNS and the standardized oral feeding advancement protocol had an observed reduction in time to exclusive oral feedings and LOS, although statistical significance was not achieved.
Objectives: To evaluate the effectiveness of nonnutritive sucking (NNS) and oral stimulation (OS), either applied alone or in combination, to reduce the transition time from tube feeding to independent oral feeding. Design: Randomized controlled trial. Setting: A 40-bed neonatal ICU in a university hospital in the People's Republic of China. Patients: A total of 120 preterm infants were admitted to the neonatal ICU from December 2012 to July 2013. Interventions: Oral motor interventions. Measurements and Main Results: One hundred twelve preterm infants were assigned to three intervention groups (NNS, OS, and combined NNS + OS) and one control group. Primary outcome was the number of days needed from introduction of oral feeding to autonomous oral feeding (transition time). Secondary outcome measures were the rate of milk transfer (mL/min), proficiency (intake first 5 min/volume ordered), volume transfer (volume transferred during entire feeding/volume prescribed), weight, and hospital length of stay. Transition time was reduced in the three intervention groups compared with the control group (p < 0.001). The milk transfer rate in the three intervention groups was greater than in the control group (F-3,F-363 = 15.37; p < 0.001). Proficiency in the NNS and OS groups did not exceed that in the control group while the proficiency in the NNS + OS group was greater than that in the control group at the stage when the infants initiated the oral feeding (p = 0.035). Among all groups, no significant difference was found on weight gain and length of stay. Conclusions: The combined NNS + OS intervention reduced the transition time from introduction to independent oral feeding and enhanced the milk transfer rate. The combined intervention seems to have a beneficial effect on oral feeding proficiency in preterm infants.
To evaluate the effect of early oral stimulation before the introduction of oral feeding, over the duration of concomitant tube feeding ("transition period"), the length of hospital stay and the breastfeeding rates upon discharge in preterm infants.
Preterm infants born between 26 and 33 weeks gestational age (n=86), were randomized into an intervention and control group. Infants in the intervention group received an oral stimulation program consisting in stimulation of the oral structures for 15 min at least for 10 days, before introduction of oral feeding. Oral feeding was introduced at 34 weeks GA in both groups.
Breastfeeding rates upon discharge were significantly higher in the intervention than in the control group (70% versus 45.6%, p=0.02). There was no statistical difference between the two groups in terms of the length of the transition period or the length of the hospital stay. The need for prolonged CPAP support (HR=0.937, p=0.030) and small size for gestational age at birth (HR=0.338, p=0.016) were shown to be risk factors for a prolonged transition period.
A pre-feeding oral stimulation program improves breastfeeding rates in preterm infants. The study results suggest that oral stimulation, as used in our specific population, does not shorten the transition period to full oral feeding neither the length of hospital stay.
To identify infant and maternal characteristics associated with the pace of progression from the first oral feeding to complete oral feeding.
One hundred forty-two stable premature infants who were fully or partially gavage feeding immediately after birth (29 to 34 weeks gestational age at birth).
Exploratory secondary analysis.
Data are from an ongoing randomized clinical trial of a developmental maternally administered intervention (Hospital to Home Transition-Optimizing Premature Infant's Environment) for mother-infant dyads at high social-environmental risk.
Oral feeding progression (transition time from the first attempt to complete oral feeding).
The convenience sample of preterm infants consisted of 48.6% male infants; the mean gestational age at birth was 32.4 weeks and mean birth weight 1787 g; and African American mothers (47.9%; n = 80) and Latina mothers (52.1%; n = 83).
Multivariable linear regression results showed that, on average, the number of days for infants of Latina mothers to achieve complete oral feeding was 2.43 days more than for infants of African American mothers. In addition, lower birth weight and lower postmenstrual age at first oral feeding were associated with longer feeding progression. Higher infant morbidity was correlated with longer feeding progression.
Infants with Latina mothers, lower birth weight, lower postmenstrual age at first oral feeding, and higher morbidity scores had a longer transition from first to complete oral feeding. Identification of infants at risk for delayed transition from first to complete oral feeding may allow for the development and testing of appropriate interventions that support the transition from gavage to complete oral feeding.
Care of the very low-birth-weight (VLBW) infant is associated with prolonged hospitalization and increased hospital costs. Specific complications of prematurity, including necrotizing enterocolitis (NEC), late-onset sepsis (LOS), and feeding intolerance, contribute to increased cost and length of hospitalization in this population. The provision of breast milk to VLBW infants has been associated with decreased incidence of NEC and LOS as well as fewer days required to achieve full enteral feedings. The purpose of this study was to determine the impact of breast milk on length of hospitalization and hospital costs among VLBW infants in the neonatal intensive care unit (NICU).
A total of 80 infants weighing less than 1500 g, born prior to 32 weeks' gestation and who remained in the home hospital until discharge.
This descriptive comparative study examined cost of hospitalization and length of stay between 2 groups of VLBW premature infants fed either exclusively formula (n = 40) or at least 50% breast milk (n = 40) during their hospitalization.
A retrospective chart review was used to collect information concerning patient demographics, discharge information, and nutritional variables. Information regarding hospital costs was obtained from the hospital's patient accounting office.
Independent t tests were used to compare demographic data, length of hospitalization, and cost of care between the 2 groups.
No statistically significant differences in length of stay or cost of care were found between infants fed at least 50% breast milk and those who were exclusively formula fed. Descriptive data concerning length of stay and cost of care for VLBW infants and those infants weighing less than 1000 g are presented.
This article presents a descriptive comparative study on the effect of providing at least 50% breast milk feedings compared with formula feeding on days to discharge and cost of hospitalization in VLBW infants in the NICU. It also provides information concerning cost of care and length of stay in VLBW and infants weighing less than 1000 g.
Preterm infants frequently experience oral feeding difficulties due to underdeveloped oral motor skills and the lack of coordination of sucking, swallowing, and respiration. The infants' ability to consume all feedings orally while maintaining physiologic stability and weight gain is necessary for their discharge. Therefore, difficulty with oral feeding leads to longer hospital stays and higher costs. For example, with more than half a million of premature infants born each year, a 3-day decrease in hospital stay would save more than 2 billion dollars annually. There is a need for evidenced-based interventions that facilitate development of oral-motor skills, leading to improved oral feeding, thus shortening hospital stays and lowering costs. The purpose of this research was to test the newly developed Premature Infant Oral Motor Intervention (PIOMI) beginning at 29 weeks postmenstrual age (PMA), before oral feedings were introduced, to determine whether the prefeeding intervention would result in a shorter transition from gavage to total oral feedings and a shorter length of hospital stay (LOS). The PIOMI is a 5-minute oral motor intervention that provides assisted movement to activate muscle contraction and provides movement against resistance to build strength. The focus of the intervention is to increase functional response to pressure and movement and control of movements for the lips, cheeks, jaw, and tongue. The cheeks (internal and external), lips, gums, tongue, and palate were stimulated per specific protocol with finger stroking.
A total of 19 infants from 1 level III NICU born between 26 and 29 weeks PMA: 10 in the experimental group and 9 in the control group.
A randomized, blinded, clinical trial was conducted to examine outcomes related to the newly developed PIOMI.
Beginning at 29 weeks PMA (and before the introduction of oral feeding), the experimental group received the PIOMI for 5 minutes per day for 7 consecutive days. The control group received a sham intervention to keep staff and parents blinded to the infants' group assignment. Physiological and behavioral stabilities were continually assessed throughout the intervention. A chart review was then conducted to compare the transition from gavage feeding to total oral feedings between the experimental and control group, as well as LOS.
The PIOMI was well tolerated by 29-week PMA infants, as evidenced by physiological and behavioral cues. Infants who received the once-daily PIOMI transitioned from their first oral feeding to total oral feedings 5 days sooner than controls (P = .043) and were discharged 2.6 days sooner than controls.
This pilot work supports further study on the use of the PIOMI with preterm infants to enhance oral-feeding skills and decrease LOS.
The development of feeding and swallowing involves a highly complex set of interactions that begin in embryologic and fetal periods and continue through infancy and early childhood. This article will focus on swallowing and feeding development in infants who are developing normally with a review of some aspects of prenatal development that provide a basis for in utero sucking and swallowing. Non-nutritive sucking in healthy preterm infants, nipple feeding in preterm and term infants, and selected processes of continued development of oral skills for feeding throughout the first year of life will be discussed. Advances in research have provided new information in our understanding of the neurophysiology related to swallowing, premature infants' sucking and swallowing patterns, and changes in patterns from preterm to near term to term infants. Oral skill development as texture changes are made throughout the second half of the first year of life is an under studied phenomenon. Knowledge of normal developmental progression is essential for professionals to appreciate differences from normal in infants and children with feeding and swallowing disorders. Additional research of infants and children who demonstrate overall typical development in oral skills for feeding is encouraged and will provide helpful reference points in increasing understanding of children who exhibit differences from typical development. It is hoped that new technology will provide noninvasive means of delineating all phases of sucking and swallowing from prenatal through infancy. Further related topics in other articles of this issue provide a comprehensive review of factors influencing oral intake, growth, nutrition, and neurodevelopmental status of children.
Feeding competency is a frequent and serious challenge to the neonatal intensive care unit survivors and to the physician-provider-parent teams. The urgency of effective assessment and intervention techniques is obviated to promote safe swallow, as attainment of oral feeding for the preterm infant/newborn is one of the prerequisites for hospital discharge. If left unresolved, feeding problems may persist into early childhood and may require management by pediatric gastroenterologists and feeding therapists. This review highlights studies aimed at understanding the motor control and development of nonnutritive and nutritive suck, swallow, and coordination with respiration in preterm populations.
Functional linkages between suck-swallow and swallow-respiration manifest transitional forms during late gestation and can be delayed or modified by sensory experience and/or disease processes. Moreover, brainstem central pattern generator (CPG) networks and their neuromuscular targets attain functional status at different rates, which ultimately influences cross-system interactions among individual CPGs. Entrainment of trigeminal primary afferents to activate the suck CPG is one example of a clinical intervention to prime cross-system interactions among ororhythmic pattern generating networks in the preterm and term infants.
The genesis of within-system CPG control for rate and amplitude scaling matures differentially for suck, mastication, swallow, and respiration. Cross-system interactions among these CPGs represent targets of opportunity for new interventions that optimize experience-dependent mechanisms to promote robust ororhythmic patterning and safe swallows among preterm infants.
Alteration of the breathing pattern seen during oral feeding has been attributed to the behavioral activity of sucking, repeated swallowing, and laryngeal chemoreceptor stimulation. Because it preserves the behavioral activity of sucking but eliminates the laryngeal chemoreceptor stimulation and repeated swallowing that occurs during nutritive sucking, the effects of nonnutritive sucking was evaluated in 19 term infants. The suck-pause pattern seen during nonnutritive sucking is similar to that of nutritive sucking. None of the variables measured (inspiratory duration, expiratory duration, breathing frequency, and tidal volume) were significantly altered during the overall period of nonnutritive sucking when compared with previously obtained control values. These results suggest that the alteration of breathing pattern observed during oral feeding cannot be accounted for by the behavioral activity of sucking per se. However, when the sucking phases of the nonnutritive period were compared with the intervening pauses, a reduction in the expiratory duration (P less than 0.05) and a reduction in tidal volume (P less than 0.05) were observed. Thus, the breathing pattern of human neonates is indeed altered during the sucking phase of the nonnutritive period; pressure changes associated with sucking may account for this alteration.
Changes in non-nutritive sucking contingent upon the repeated presentation of unpatterned and patterned light stimulation were examined in a sample of 18 premature infants. Stimulus contingent sucking change in chronologically younger infants tended to be somewhat shorter in duration than that of the chronologically older infants and showed stimulus contingent sucking acceleration as well as suppression. Evidence was also found for less orienting among infants showing abnormalities in their sucking behavior. No evidence for habituation was found in any subgroup. Possible factors contributing to the strength and nature of stimulus contingent non-nutritive sucking changes in infants are discussed.
Publisher Summary This chapter focuses on the development of human fetal behavior. Discovery of the causes and mechanisms involved in behavior depends upon acquiring a more complete knowledge of the developmental sequence of the reactions of the fetus to its total environment. Reports on human fetal reflexes have appeared during recent years. Most of the data are from observations on older fetuses and premature infants. It has not been possible either to determine satisfactorily the total number of cases studied or to correlate activity with fetal age in many instances. The current account of human fetal activity is based almost entirely on the observations begun in 1932 by Davenport Hooker at the University of Pittsburgh. The investigations on fetal activity include premotile embryos and a total of 136 motile fetuses and premature infants. Motion picture records are available for the majority of these cases and dictated records for the others. The chapter presents interpretation based on the analysis of these motion picture records.
To assess whether an oral stimulation program, before the introduction of oral feeding, enhances the oral feeding performance of preterm infants born between 26 and 29 weeks' gestational age.
Preterm infants (n = 32) were randomized into an experimental and control group. Infants in the experimental group received an oral stimulation program consisting of stimulation of the oral structures for 15 minutes. Infants in the control group received a sham stimulation program. Both were administered once per day for 10 consecutive days, 48 hours after discontinuation of nasal continuous positive air pressure.
Independent oral feeding was attained significantly earlier in the experimental group than the control group, 11 +/- 4 days (mean +/- SD) versus 18 +/- 7 days, respectively (P =.005). Overall intake and rate of milk transfer were significantly greater over time in the experimental group than the control group (P =.0002 and.046, respectively). There was no difference in length of hospital stay between the 2 groups.
An early oral stimulation program accelerates the transition to full oral feedings in preterm infants. This was associated with greater overall intake and rate of milk transfer observed in the experimental group when compared with the control group.
Finding ways to consistently prepare preterm infants and their families for more timely discharge must continue as a focus for everyone involved in the care of these infants in the neonatal intensive care unit. The gold standards for discharge from the neonatal intensive care unit are physiologic stability (especially respiratory stability), consistent weight gain, and successful oral feeding, usually from a bottle. Successful bottle-feeding is considered the most complex task of infancy. Fostering successful oral feeding in preterm infants requires consistently high levels of skilled nursing care, which must begin with accurate assessment of feeding readiness and thoughtful progression to full oral feeding. This comprehensive review of the literature provides an overview of the state of the science related to feeding readiness and progression in the preterm infant. The theoretical foundation for feeding readiness and factors that appear to affect bottle-feeding readiness, progression, and success are presented in this article.
To assess if sensory-motor-oral stimulation and non-nutritive sucking gavage feeding enhances the oral feeding performance of preterm infants born between 26 and 32 weeks of gestational age.
Very low birthweight infants (n=98) were randomized into a experimental and control group. Preterm infants in the experimental group received sensory-motor-oral stimulation and non-nutritive sucking and infants in the control group received a sham stimulation program. Both were administered from when they reached enteral diet (100 kcal/kg/day) until the beginning of oral diet. Primary outcome was length of hospital stay.
Independent oral feeding was attained significantly earlier in the experimental group than the control group, 38+/-16 days of life (mean+/-S.D.) versus 47+/-17 days of life, respectively (P<0.001) There was significant difference in length of hospital stay between the two groups (41.9+/-17 (mean+/-S.D.) versus 52.3+/-19 days (P<0.01)).
Sensory-motor-oral stimulation, together with early non-nutritive sucking (as soon as the newborn reaches full diet and is clinically stable) in very low birthweight preterm infants, as long as they are clinically stable, in this study, earlier initiation of oral feeding and earlier hospital discharge.
To study whether a cue-based clinical pathway for oral feeding initiation and advancement of premature infants would result in earlier achievement of full oral feeding.
Age of achievement of full oral intake was compared for two groups of preterm infants; a prospective study group vs historic cohort controls. Study infants had oral feedings managed by nurses using a clinical pathway that relied on infant behavioral readiness signs to initiate and advance oral feedings. Controls had oral feedings managed by physician orders.
Fifty-one infants (n=28 study and n=23 control) were studied. Gender distribution, gestational age, birth weight and ventilator days were not different between groups. Study infants reached full oral feedings 6 days earlier than controls (36+/-1 3/7 weeks of postmenstrual age (PMA) vs 36 6/7+/-1 4/7 weeks of PMA, P=0.02).
The cue-based clinical pathway for oral feeding initiation and advancement of premature infants resulted in earlier achievement of full oral feeding.
Non-nutritive Sucking for Promoting Physiologic Stability and Nutrition in Preterm Infants, The Cochrane Library
- J Pinelli
- A Symington
J. Pinelli, A. Symington, Non-nutritive Sucking for Promoting Physiologic Stability
and Nutrition in Preterm Infants, The Cochrane Library, 2001.