Document Detail

Assessment of biophysical skin properties at different body sites in hospitalized old patients: results of a pilot study.
MedLine Citation:
PMID:  22487874     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Skin aging is a risk factor for a decubitus and biophysical skin properties could help to identify persons at risk. Whether such biophysical properties of aged human skin differ between areas is undetermined.
OBJECTIVE: To investigate whether viscoelasticity, hydration or friction differ between important areas for decubitus risk.
METHODS: Pilot study in 32 (18 female, 14 male) acute and subacute old patients aged 81.9 ± 5.9 years (±SD), without active skin disease after an average of 10 days of stay. Assessment of skin resilience/viscoelasticity (E) and hydration (H) at the volar forearm (VF), trochanter (TR) and the sacrum (SA), nutrition by a Mini Nutritional Assessment (MNA), total body water (TBW), lean body mass (LBM), % body fat (%F) by bioimpedance and routine laboratory parameters (hemoglobin, hematocrit, leukocytes, C-reactive protein, serum proteins and creatinine).
RESULTS: Mean body mass index (27 ± 4.2), MNA (22.5 ± 2.9), Braden score (20 ± 2.5), E (68.5 ± 6.0%) and H (38.3 ± 6.7) at any site and laboratory parameters did not differ by sex. Men had more TBW (+12 ± 1.5 liters), LBM (+9 ± 2 kg), less %F (-8.8 ± 2.1%), increased H-TR (+7.11 ± 2.8) and H-SA (+5.68 ± 2.5). Overall E-VF correlated significantly with E-TR (r(2) = 0.40, p < 0.0001) and E-SA (r(2) = 0.40, p < 0.0001). In contrast, skin hydration was not correlated.
CONCLUSION: Results of forearm elasticity experiments can be used as a model for other body sites at risk for the development of pressure ulcers.
M Fiedler; L-C Gerhardt; S Derler; G Bischofberger; C Hürny; T Münzer
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-04-05
Journal Detail:
Title:  Gerontology     Volume:  58     ISSN:  1423-0003     ISO Abbreviation:  Gerontology     Publication Date:  2012  
Date Detail:
Created Date:  2012-11-06     Completed Date:  2013-04-26     Revised Date:  2014-07-31    
Medline Journal Info:
Nlm Unique ID:  7601655     Medline TA:  Gerontology     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  513-7     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 S. Karger AG, Basel.
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MeSH Terms
Aged, 80 and over
Aging / physiology*
Biomechanical Phenomena / physiology
Biophysical Phenomena
Body Composition
Body Water / metabolism
Nutrition Assessment
Pilot Projects
Pressure Ulcer / etiology,  physiopathology
Risk Factors
Skin Aging / physiology*

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