Dorothee Volkert

Dorothee Volkert
Friedrich-Alexander-University of Erlangen-Nürnberg | FAU · Institute for Biomedicine of Aging

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219
Publications
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Publications

Publications (219)
Article
Älteren Menschen wird ein relativ hohes Ernährungsbewusstsein zugeschrieben. Bisher ist jedoch nicht bekannt, welche Bedeutung sie einzelnen Aspekten einer gesundheitsförderlichen Ernährung beimessen. Mittels standardisierter Fragebögen wurden 159 gesunde und rüstige SeniorInnen (78 ± 3 Jahre, 50 % weiblich) zur Wichtigkeit und Beachtung von 15 Ern...
Article
Full-text available
Purpose To conduct a scoping review to provide a systematic overview of outcomes used in nutritional intervention studies focused on the treatment of protein-energy malnutrition in older adults. Methods A systematic search of four electronic databases (Medline, EMBASE, CINAHL and Cochrane Central Register of Controlled Trials (CENTRAL) was perform...
Article
Full-text available
Background/Objectives Malnutrition (MN) in nursing home (NH) residents is associated with poor outcome. In order to identify those with a high risk of incident MN, the knowledge of predictors is crucial. Therefore, we investigated predictors of incident MN in older NH-residents. Subjects/Methods NH-residents participating in the nutritionDay-proje...
Conference Paper
Rationale: As in younger ages, obesity is highly prevalent in older people and lifestyle-interventions (LSI) are recommended as first-line treatment. We conducted a systematic review of randomized-controlled trials (RCTs) with network meta-analyses (NMA) to describe effects of LSI on body weight (BW) and fat-free mass (FFM) in older people with obe...
Conference Paper
Rationale: In nursing home (NH) residents, obesity (OB) is associated with an increased risk of poor health outcomes, e.g. care complications, infections, falls. However, about the prevalence of OB in European NH-residents through the years and potential regional differences little is known.
Article
Full-text available
Purpose Individualised interventions are recommended to tackle malnutrition in older adults, but approaches for nursing home (NH) residents are scarce. This study investigated the effects of an individualised nutritional intervention in NH residents with (risk of) malnutrition. Methods In a pre-post study, 6 weeks (w) of usual care were followed b...
Article
Full-text available
Malnutrition (MN) is widespread in nursing homes. Sometimes, but not always, nutritional interventions (NIs) are made, and the reasons for or against NIs are unknown. The aim of this cross-sectional study was to describe these reasons for residents with and without MN according to nurses’ subjective judgement and according to objective signs of MN....
Article
Der Umgang mit Adipositas im Alter gewinnt aufgrund steigender Prävalenzzahlen, weitreichender Folgen und damit verbundenen Gesundheitskosten zunehmend an Bedeutung. Da biologische Alterungsprozesse individuell sehr unterschiedlich verlaufen, ist die Gruppe älterer Menschen (mit Adipositas) hinsichtlich Gesundheit und Leistungsfähigkeit sehr hetero...
Poster
Hintergrund: Die zunehmende Prävalenz von Adipositas im höheren Lebensalter erfordert zielgruppenorientierte the-rapeutische Ansätze. Subjektiv wahrgenommene Barrieren sowie Unterstützungsbedarfe von älteren Menschen mit Adipositas bei der Gewichtsreduktion sind bisher wenig bekannt und wurden in dieser qualitativen Studie untersucht. Methoden: Zwi...
Poster
Hintergrund: Aufgrund des demographischen Wandels und der weltweiten Zunahme von Adipositas, auch in höheren Al-tersgruppen, gewinnt der Umgang mit Adipositas im Alter zunehmend an Bedeutung. Die Gründe, warum sich ältere Menschen für oder gegen eine Gewichtreduktion entscheiden, sind bisher wenig bekannt und wurden in der vorliegen-den qualitative...
Article
Full-text available
Introduction Obesity is highly prevalent in older adults aged 65 years or older. Different lifestyle interventions (diet, exercise, self-management) are available but benefits and harms have not been fully quantified comparing all available health promotion interventions. Special consideration must be given to functional outcomes and possible adver...
Conference Paper
Rationale: Malnutrition (MN) is a widespread problem in nursing homes. Sometimes, but not always measures are taken, whereby the reasons for or against nutritional intervention (NI) have never been examined so far. The aim of the study was to describe these reasons based on caregivers’ subjective judgement of the residents’ (RE) nutritional status.
Conference Paper
Metabolische Veränderungen einer SGLT-1 Transportergenvariante in einer Bevölkerungskohorte im Raum Freising: eine enable Studie. SGLT1 (Natrium/Glukose-Co-Transporter 1; SLC5A1) ist der wichtigste Transporter in den Enterozyten für die Aufnahme der Monosaccharide Glukose und Galaktose. Mutationen im SGLT1-Carrier verursachen quantitative Änderung...
Article
Full-text available
Background: Patients with cancer have an increased risk of malnutrition which is associated with poor outcome. The Mini Nutritional Assessment (MNA®) is often used in older patients with cancer but its relation to outcome is not known. Methods: Four databases were systematically searched for studies relating MNA-results with any reported outcome...
Conference Paper
Hintergrund/Fragestellung: Adipositas tritt bei ca 35% der Personen über 65 Jahren auf und kann - v. a. in Kombination mit Sarkopenie - schwerwiegende gesundheitliche Auswirkungen haben. Für die Therapie stehen Lebensstilinterventionen (LSI) in den Bereichen: Ernährung, Bewegung, Verhalten (und deren Kombination) im Vordergrund, die primär auf eine...
Article
Purpose: The Joint Action Malnutrition in the Elderly (MaNuEL) Knowledge Hub was established to extend scientific knowledge, strengthen evidence-based practice, build a sustainable, transnational network of experts and harmonize research and clinical practice in the field of protein-energy malnutrition in older persons. This paper aims to summariz...
Article
Full-text available
Background/objectives: The Refeeding Syndrome (RFS) is a serious complication in patients receiving nutrition support after a period of severe malnutrition. We frequently recognize and diagnose the RFS due to increased awareness. Thus, we observe that many physicians do not know the RFS and that it is rarely diagnosed. The aim of the study was to...
Conference Paper
Hintergrund: PatientInnen mit Krebserkrankungen haben ein erhöhtes Risiko für Mangelernährung, was wiederum mit einem schlechteren Überleben oder Therapieabbruch verbunden ist. Das Mini Nutritional Assessment (MNA®) wird häufig bei PatientInnen mit Krebserkrankungen eingesetzt und weist, verglichen mit anderen Screeninginstrumenten, eine hohe inhal...
Article
Full-text available
Background: Following a timely update process, the nutrition societies of Germany, Austria, and Switzerland (D-A-CH) revised the reference values for the intake of protein in 2017. The Working Group conducted a structured literature search in PubMed considering newly published papers (2000- 2017). Summary: For infants < 4 months, the estimated v...
Article
Full-text available
Background & aims: Malnutrition in older adults results in significant personal, social, and economic burden. To combat this complex, multifactorial issue, evidence-based knowledge is needed on the modifiable determinants of malnutrition. Systematic reviews of prospective studies are lacking in this area; therefore, the aim of this systematic revi...
Conference Paper
Einleitung: In den letzten Jahren stand Mangelernährung im Fokus der Forschung in Pflegeheimen, jedoch stellt neben Mangelernährung auch Adipositas (AD) ein gesundheitsrelevantes Problem dar. Bei Erwachsenen zeigte sich in den letzten Jahren weltweit eine Zunahme der Prävalenz von Übergewicht (ÜG) und AD. Fragestellung: Anhand der Daten des nutrit...
Article
Das Refeeding-Syndrom ist eine potenziell lebensbedrohliche Komplikation, die zu Beginn einer Ernährungstherapie bei mangelernährten Patienten bzw. nach der Wiederaufnahme der Ernährung nach einer Fasten- oder Hungerperiode entstehen kann. Bei Kenntnis der Risikofaktoren und der Pathophysiologie kann der Entwicklung eines Refeeding-Syndroms wirksam...
Article
Full-text available
In order to tackle the increasing problem of malnutrition (i.e. protein-energy malnutrition) in the older population, the Joint Action Malnutrition in the Elderly (MaNuEL) Knowledge Hub has been recently launched as part of the Strategic Research Agenda of the Joint Programming Initiative (JPI) A Healthy Diet for a Healthy Life (HDHL). This paper i...
Article
Objectives The incidence of refeeding syndrome (RFS) in older patients is not well-known. The aim of the study was to determine the prevalence of known risk factors for RFS in older individuals during hospitalization at geriatric hospital departments. Design and setting342 consecutive older participants (222 females) who admitted at acute geriatric...
Article
Das Refeeding-Syndrom ist eine lebensbedrohliche Komplikation, die bei Beginn einer Ernährungstherapie bei mangelernährten Patienten entstehen kann. Bei Kenntnis der Risikofaktoren und der Pathophysiologie kann ihrer Entwicklung wirksam vorgebeugt werden bzw. bei frühzeitiger Erkennung eine wirksame Behandlung erfolgen. Ein langsamer Kostaufbau und...
Article
Full-text available
In order to tackle the increasing problem of malnutrition (i.e. protein-energy malnutrition) in the older population, the Joint Action Malnutrition in the Elderly (MaNuEL) Knowledge Hub has been recently launched as part of the Strategic Research Agenda of the Joint Programming Initiative (JPI) A Healthy Diet for a Healthy Life (HDHL). This paper i...
Article
Objectives: Malnutrition in older persons is associated with an increased risk of mortality. Useful strategies to counteract malnutrition are nutritional interventions, such as fortified diets, oral nutritional supplements (ONS), tube feeding, and parenteral nutrition. Presently, it is not known if these strategies can reduce mortality risk of nur...
Article
The prevalence of malnutrition or the risk of malnourishment is high among orthogeriatric patients and a poor nutritional status is associated with a negative outcome. A comprehensive management of preoperative and postoperative nutritional and fluid intake in these patients can help to improve the situation. The management includes identification...
Article
Full-text available
Objectives The aim of this study is to comprehensively describe nutritional care in German nursing homes (NHs) and to examine if nutritional care differs between small, medium and large NHs. Design Nationwide cross-sectional postal survey. Setting Nursing homes. Participants 541 NHs across Germany. Measurements Information on structural NH characte...
Article
Older people suffering from dementia are at increased risk of malnutrition due to various nutritional problems, and the question arises which interventions are effective in maintaining adequate nutritional intake and nutritional status in the course of the disease. In an international expert group, initiated by the European Society for Clinical Nut...
Article
Background: The present study aimed to evaluate a short-form (MNA-SF) version of the Mini Nutritional Assessment (MNA), in which some of the items were operationalised, based on scores from tools used for a comprehensive geriatric assessment, as a method for analysing the nutritional status of hospitalised geriatric patients. We compared this MNA-...
Article
Objectives The aims of this study were to determine the prevalence of malnutrition in patients of a geriatric day hospital using the Mini Nutritional Assessment short form (MNA-SF) and the full MNA, to compare both tools, and to examine the relationship between nutritional and functional status. DesignCross-sectional study. SettingGeriatric day hos...
Article
Full-text available
Oropharyngeal dysphagia (OD) is a highly prevalent and growing condition in the older population. Although OD may cause very severe complications, it is often not detected, explored, and treated. Older patients are frequently unaware of their swallowing dysfunction which is one of the reasons why the consequences of OD, ie, aspiration, dehydration,...
Article
Inadequate nutritional intake is an important modifiable risk factor for frailty. Existing evidence supports the importance of adequate dietary quantity and especially quality to ensure sufficient intakes of energy, protein and micronutrients. However, to date no nutritional intervention or supplementation concept has emerged as being effective for...
Article
Background: Older people suffering from dementia are at increased risk of malnutrition due to various nutritional problems, and the question arises which interventions are effective in maintaining adequate nutritional intake and nutritional status in the course of the disease. It is of further interest whether supplementation of energy and/or spec...
Article
Weight loss and low body-mass-index (BMI) are well-known risk factors for mortality among older persons. Both items represent a reduced nutritional state but their nature is different. It is, however, unclear which of these factors is more important for prognosis and if there is interference or interaction between them. To measure the prevalence of...
Article
We examined the relationship between postoperative dietary intake (DI) of geriatric hip fracture (HF) patients and their functional and clinical course until 6 months after hospital discharge. In eighty-eight HF patients ≥ 75 years, postoperative DI was estimated with plate diagrams of main meals over four postoperative days. DI was stratified as >...
Article
Background: The study investigates variations in the associations between body mass index (BMI) and (a) physical and (b) cognitive function across three samples of older adults living in different settings, and moreover determines if the association between BMI and physical function is confounded by cognitive abilities. Methods: One hundred nine...
Article
Hip fractures (HFs) in old age frequently cause severe functional impairment and deteriorating autonomy in everyday life. Many older patients with HFs are malnourished or at risk of malnutrition. In this study, we examined the relationship between nutritional status of geriatric patients before HF and their functional and clinical course up to 6 mo...
Article
Objectives Administration of oral nutritional supplements (ONS) is an effective strategy to treat and avoid malnutrition, a persisting issue in nursing homes. However, little is known about compliance in the NH population. This study aimed to analyse the effects of compliance of NH residents with a low-volume, nutrientand energy-dense ONS on nutri...