Conservative treatment for patent ductus arteriosus in the preterm. Arch Dis Child Fetal Neonatal Ed 92(4):F244-F247

Ziekenhuis Oost Limburg, Genck, Flemish, Belgium
Archives of Disease in Childhood - Fetal and Neonatal Edition (Impact Factor: 3.12). 07/2007; 92(4):F244-7. DOI: 10.1136/adc.2006.104596
Source: PubMed


A patent ductus arteriosus (PDA) is common among preterms, and prophylactic medical treatment has been advocated as the first-line approach. Conservative treatment may result in similar outcome, but without exposure to the harmful side effects of medication. A retrospective analysis revealed a ductal closure rate of 94% after conservative treatment with adjustment of ventilation (lowering the inspiratory time and increasing positive end expiratory pressure) and fluid restriction.
To study prospectively over one year the rate of PDA closure, and morbidity and mortality following conservative treatment.
Prospective study (1 January 2005 - 31 December 2005) including 30 newborns <or=30 weeks' gestation, all of whom were being ventilated and required surfactant. Echocardiography was performed 48-72 h after birth. Clinically important PDA was conservatively treated as described above. The percentage of children with PDA, ductal ligation and major complications was determined.
Ten neonates (33%) developed a clinical important PDA. Following conservative treatment the duct closed in all neonates (100%), and none required ductal ligation or medical treatment. The rates of major complications were no higher than those reported by the Vermont Oxford Network and in the literature.
The managed care plan resulted in an overall ductal closure rate of 100%. These results suggest that conservative treatment of PDA is a worthy alternative to prophylactic medical treatment.

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Available from: Claire Theyskens, Oct 04, 2015
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    • "Because of the recent acknowledgement of the physiology of PDA and the adverse effects on various organ systems of treatment (14, 15, 16, 17), most current studies have focused on delayed treatment and a more conservative approach for preterm infants (18, 19, 20, 21). Considering the surgical complications and hemodynamic instability after ligation (22, 23, 24), we also believe that early aggressive intervention could be detrimental to these tiny infants. "
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    ABSTRACT: The purpose of this study was to evaluate prognostic factors associated with surgical ligation for patent ductus arteriosus (PDA) in extremely preterm infants born at the limits of viability. Ninety infants who were born at 23-25 weeks of gestation and who received surgical ligation were included and their cases were retrospectively reviewed. Infants were classified into two different groups: survivors with no major morbidity (N), and non-survivors or survivors with any major morbidity (M). Clinical characteristics were compared between the groups. Possible prognostic factors were derived from this comparison and further tested by logistic regression analysis. The mean gestational age and the mean birth weight of M were significantly lower than those of N. Notably, the mean postnatal age at time of ligation in N was significantly later than that of the other group (17±12 vs 11±8 days in N and M, respectively). An adjusted analysis showed that delayed ligation (>2 weeks) was uniquely associated with a significantly decreased risk for mortality or composite morbidity after surgical ligation (OR, 0.105; 95% CI, 0.012-0.928). In conclusion, delayed surgical ligation for PDA (>2 weeks) is associated with decreased mortality or morbidities in extremely preterm infants born at 23-25 weeks of gestation. Graphical Abstract
    Journal of Korean medical science 04/2014; 29(4):581-6. DOI:10.3346/jkms.2014.29.4.581 · 1.27 Impact Factor
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    • "This same group subsequently reported improved neurodevelopmental outcomes in the delayed selective ligation group.[89] Another single-center study reported 100% spontaneous PDA closure and no increased neonatal complications among infants <30 weeks GA treated with a conservative approach consisting of fluid restriction and increased positive end-expiratory pressure.[90] "
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    ABSTRACT: Observational studies have associated patent ductus arteriosus (PDA) ligation in preterm infants with increased chronic lung disease (CLD), retinopathy of prematurity, and neurodevelopmental impairment at long-term follow-up. Although the biological rationale for this association is incompletely understood, there is an emerging secular trend toward a permissive approach to the PDA. However, insufficient adjustment for postnatal, pre-ligation confounders, such as intraventricular hemorrhage and the duration and intensity of mechanical ventilation, suggests the presence of residual bias due to confounding by indication, and obliges caution in interpreting the ligation-morbidity relationship. A period of conservative management after failure of medical PDA closure may be considered to reduce the number of infants treated with surgery. Increased mortality and CLD in infants with persistent symptomatic PDA suggests that surgical ligation remains an important treatment modality for preterm infants.
    04/2014; 3(2):67-75. DOI:10.4103/2249-4847.134670
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    • "Symptomatic PDA is an identified risk factor for INSURE failure [40] and may have contributed to the higher need for MV in this group. Moreover, as mechanical ventilation strategies may influence ductal closure [41], whether flow-SNIPPV may have a direct effect on PDA should be investigated further. "
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    ABSTRACT: Aim. To evaluate whether synchronized-NIPPV (SNIPPV) used after the INSURE procedure can reduce mechanical ventilation (MV) need in preterm infants with RDS more effectively than NCPAP and to compare the clinical course and the incidence of short-term outcomes of infants managed with SNIPPV or NCPAP. Methods. Chart data of inborn infants <32 weeks undergoing INSURE approach in the period January 2009-December 2010 were reviewed. After INSURE, newborns born January -December 2009 received NCPAP, whereas those born January-December 2010 received SNIPPV. INSURE failure was defined as FiO(2) need >0.4, respiratory acidosis, or intractable apnoea that occurred within 72 hours of surfactant administration. Results. Eleven out of 31 (35.5%) infants in the NCPAP group and 2 out of 33 (6.1%) infants in the SNIPPV group failed the INSURE approach and underwent MV (P < 0.004). Fewer infants in the INSURE/SNIPPV group needed a second dose of surfactant, a high caffeine maintenance dose, and pharmacological treatment for PDA. Differences in O(2) dependency at 28 days and 36 weeks of postmenstrual age were at the limit of significance in favor of SNIPPV treated infants. Conclusions. SNIPPV use after INSURE technique in our NICU reduced MV need and favorably affected short-term morbidities of our premature infants.
    Critical care research and practice 11/2012; 2012:301818. DOI:10.1155/2012/301818
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