Document Detail


Supine fall in lung volumes in the assessment of diaphragmatic weakness in neuromuscular disorders.
MedLine Citation:
PMID:  11239298     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To determine whether diaphragmatic function can be determined by noninvasive respiratory indices in neuromuscular disease. DESIGN: Vital capacity (VC) and mouth pressure generated during a maximal static inspiratory effort (Pi max) were measured with patients in both sitting and supine positions. SETTING: Rehabilitation hospital. PATIENTS: Twenty-four patients with generalized neuromuscular disease. MAIN OUTCOME MEASURES: Changes in indices from sitting to supine position were compared with invasive diaphragmatic function indices consisting of transdiaphragmatic pressures during maximal sniff (Pdi sniff) and the ratio of gastric pressure (Pga) increases over transdiaphragmatic pressure (DeltaPga/DeltaPdi) during quiet breathing. RESULTS: The fall in VC in the supine position was greater in the 15 patients who had spontaneous paradoxical diaphragmatic motion (DeltaPga/DeltaPdi < 0) than in the 9 patients who did not. Specificity and sensitivity of a greater than 25% supine fall in VC for the diagnosis of diaphragmatic weakness (DeltaPga/DeltaPdi < 0 and/or Pdi sniff < 30cmH2O) were 90% and 79%, respectively. Stepwise multiple regression analysis of Pdi sniff showed that both the supine fall in VC and Pi max were associated with diaphragmatic weakness (R(2) =.66; p <.0001). These factors contributed 52% and 14% of the Pdi sniff variance, respectively. CONCLUSIONS: Simple VC measurement in the sitting and supine positions may be helpful in detecting severe or predominant diaphragmatic weakness.
Authors:
C Fromageot; F Lofaso; D Annane; L Falaize; M Lejaille; B Clair; P Gajdos; J C Raphaël
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of physical medicine and rehabilitation     Volume:  82     ISSN:  0003-9993     ISO Abbreviation:  Arch Phys Med Rehabil     Publication Date:  2001 Jan 
Date Detail:
Created Date:  2001-03-12     Completed Date:  2001-04-12     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  2985158R     Medline TA:  Arch Phys Med Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  123-8     Citation Subset:  AIM; IM    
Affiliation:
Service de Physiologie-Explorations Fonctionnelles, Hôpital Raymond Poincaré, Garches, France.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Child
Diaphragm / physiopathology*
Female
Humans
Male
Middle Aged
Neuromuscular Diseases / physiopathology*
Regression Analysis
Spirometry
Statistics, Nonparametric
Supine Position
Vital Capacity*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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