Document Detail

Preoperative use of incentive spirometry does not affect postoperative lung function in bariatric surgery.
MedLine Citation:
PMID:  20970749     Owner:  NLM     Status:  MEDLINE    
Morbidly obese patients undergoing general anesthesia for laparoscopic bariatric surgery are considered at increased risk of a postoperative decrease in lung function. The purpose of this study was to determine whether a systematic use of incentive spirometry (IS) prior to surgery could help patients to preserve their respiratory function better in the postoperative period. Forty-one morbidly obese (body mass index [BMI] > 40 kg/m²) candidates for laparoscopic bariatric surgery were consented in the study. All patients were taught how to use an incentive spirometer but then were randomized blindly into 2 groups. The control group was instructed to use the incentive spirometer for 3 breaths, once per day. The treatment group was requested to use the incentive spirometer for 10 breaths, 5 times per day. Twenty experimental (mean BMI of 48.9 ± 5.67 kg/m²) and 21 control patients (mean BMI of 48.3 ± 6.96 kg/m²) were studied. The initial mean inspiratory capacity (IC) was 2155 ± 650.08 (SD) cc and 2171 ± 762.98 cc in the experimental and control groups, respectively. On the day of surgery, the mean IC was 2275 ± 777.56 cc versus 2254.76 ± 808.84 cc, respectively. On postoperative day 1, both groups experienced a significant drop of their IC, with volumes of 1458 ± 613.87 cc (t test P < 0.001) and 1557.89 ± 814.67 cc (t test P < 0.010), respectively. Our results suggest that preoperative use of the IS does not lead to significant improvements of inspiratory capacity and that it is a not a useful resource to prevent postoperative decrease in lung function.
Davide Cattano; Alfonso Altamirano; Andrea Vannucci; Vladimir Melnikov; Chelsea Cone; Carin A Hagberg
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial     Date:  2010-09-09
Journal Detail:
Title:  Translational research : the journal of laboratory and clinical medicine     Volume:  156     ISSN:  1878-1810     ISO Abbreviation:  Transl Res     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-25     Completed Date:  2010-11-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101280339     Medline TA:  Transl Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  265-72     Citation Subset:  AIM; IM    
Copyright Information:
Copyright © 2010 Mosby, Inc. All rights reserved.
Department of Anesthesiology, The University of Texas Health Science Center Houston, School of Medicine, Houston, TX, USA.
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MeSH Terms
Bariatric Surgery / adverse effects,  methods*
Lung / physiopathology*
Middle Aged
Obesity, Morbid / physiopathology,  surgery*
Patient Satisfaction / statistics & numerical data
Postoperative Complications / etiology,  physiopathology*,  prevention & control
Preoperative Care / methods*
Respiratory Insufficiency / etiology,  physiopathology*,  prevention & control

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

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