Document Detail

Ultrasound assessment of lung aeration loss during a successful weaning trial predicts postextubation distress.
MedLine Citation:
PMID:  22584759     Owner:  NLM     Status:  Publisher    
OBJECTIVE:: Postextubation distress after a successful spontaneous breathing trial is associated with increased morbidity and mortality. Predicting postextubation distress is therefore a major issue in critically ill patients. To assess whether lung derecruitment during spontaneous breathing trial assessed by lung ultrasound is predictive of postextubation distress. DESIGN AND SETTING:: Prospective study in two multidisciplinary intensive care units within University Hospital. PATIENTS AND METHODS:: One hundred patients were included in the study. Lung ultrasound, echocardiography, and plasma B-type natriuretic peptide levels were determined before and at the end of a 60-min spontaneous breathing trial and 4 hrs after extubation. To quantify lung aeration, a lung ultrasound score was calculated. Patients were followed up to hospital discharge. MEASUREMENTS AND MAIN RESULTS:: Fourteen patients failed the spontaneous breathing trial, 86 were extubated, 57 were definitively weaned (group 1), and 29 suffered from postextubation distress (group 2). Loss of lung aeration during the successful spontaneous breathing trial was observed only in group 2 patients: lung ultrasound scores increased from 15 [13;17] to 19 [16; 21] (p < .01). End-spontaneous breathing trial lung ultrasound scores were significantly higher in group 2 than in group 1 patients: 19 [16;21] vs. 10 [7;13], respectively (p < .001) and predicted postextubation distress with an area under the receiver operating characteristic curve of 0.86. Although significantly higher in group 2, B-type natriuretic peptide and echocardiography cardiac filling pressures were not clinically helpful in predicting postextubation distress. CONCLUSIONS:: Lung ultrasound determination of aeration changes during a successful spontaneous breathing trial may accurately predict postextubation distress.
Alexis Soummer; Sébastien Perbet; Hélène Brisson; Charlotte Arbelot; Jean-Michel Constantin; Qin Lu; Jean-Jacques Rouby;
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-11
Journal Detail:
Title:  Critical care medicine     Volume:  -     ISSN:  1530-0293     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0355501     Medline TA:  Crit Care Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
From the Department of Anesthesiology and Critical Care Medicine (AS, HB, CA, QL, J-JR, BB, AM, CHD, MS, CV, LB, YLM), Multidisciplinary Intensive Care Unit, Pierre Viars, La Pitié-Salpêtrière Hospital, Assistance Publique-Húpitaux de Paris, UPMC Univ, Paris, France; Department of Anesthesiology and Critical Care Medicine (SP, J-MC, J-EB, SC-C, MJ), Multidisciplinary Intensive Care Unit, Estaing hospital, CHU Clermont-Ferrand, Université d'Auvergne Clermont-Ferrand 1, France; EA R2D2 (SP, J-MC, VS, MJ), Faculté de Médecine, Université d'Auvergne, Clermont-Ferrand, France; Laboratory of Biochemistry (MB, CD) La Pitié-Salpêtrière Hospital, Assistance Publique-Húpitaux de Paris, UPMC Univ, Paris, France; Laboratory of Biochemistry (SP, J-MC, LR, VS), Estaing hospital, CHU Clermont-Ferrand, Université d'Auvergne Clermont-Ferrand 1, France; Multidisciplinary Intensive Care Unit (PB), Mont-Godinne University Hospital, Université Catholique de Louvain, Yvoir, Belgium and the Lung Ultrasound Study Group (MB, LR, BB, AM, CHD, MS, CV, LB, YLM, CD, J-EB, SC-C, VS, MJ, PB).
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