Influence of abdominal obesity on multiorgan dysfunction and mortality in acute respiratory distress syndrome patients treated with prone positioning |
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Authors: | Thomas Weig Silke Janitza Michael Zoller Michael E Dolch Jens Miller Lorenz Frey Nikolaus Kneidinger Thorsten Johnson Mirjam I Schubert Michael Irlbeck |
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Institution: | 1. Department of Anaesthesiology, Ludwig-Maximilians-University, 81377 Munich, Germany;2. Department of Medical Informatics, Biometry and Epidemiology, Ludwig-Maximilians-University, 81377 Munich, Germany;3. Department of Internal Medicine V, Comprehensive Pulmonary Center, Member of the German Center for Lung Research, Ludwig-Maximilians-University, 81377 Munich, Germany;4. Department of Clinical Radiology, Ludwig-Maximilians-University, 81377 Munich, Germany |
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Abstract: | PurposeObesity is a worldwide pandemic, and obese patients face an increased risk of developing acute respiratory distress syndrome (ARDS). Prone positioning (PP) is a frequently used intervention in the treatment of ARDS. There are no data describing the impact of PP on morbidity and mortality in abdominally obese patients. We report our observations in abdominally obese ARDS patients treated with PP.Materials and methodsPatients with ARDS (n = 82) were retrospectively divided into 2 groups characterized by presence (n = 41) or absence (n = 41) of abdominal obesity as defined by a sagittal abdominal diameter of 26 cm or more.ResultsThere was no difference in cumulative time abdominally obese patients were placed in prone position from admission to day 7 (41.0 hours interquartile range, 50.5 hours] vs 39.5 hours interquartile range, 61.5 hours]; P = .65) or in overall intensive care unit mortality (34% vs 34%; P = 1). However, abdominally obese patients developed renal failure (83% vs 35%; P < .001) and hypoxic hepatitis (22% vs 2%; P = .015) more frequently. A significant interaction effect between abdominal obesity and prone position with respect to mortality risk (likelihood ratio, P = .0004) was seen if abdominally obese patients were treated with prolonged cumulative PP.ConclusionA cautious approach to PP should be considered in abdominally obese patients. |
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Keywords: | Prone position Abdominal obesity Central obesity ARDS Liver failure Obesity Sagittal abdominal diameter SAD Anthropometry |
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