Document Detail


Perioperative risk factors for 30-day mortality after bariatric surgery: is functional status important?
MedLine Citation:
PMID:  23299129     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Although the mortality from bariatric surgery is low, perioperative determinants of morbidity and mortality in the bariatric surgery population to date have not been fully defined. This study aimed to evaluate the factors capable of predicting perioperative mortality based on preoperative characteristics with a national patient sample. METHODS: From the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database, all the primary bariatric procedures performed between 2007 and 2009 were identified. Using univariate analysis, factors associated with increased perioperative (30-day) mortality were identified. Logistic regression was used to select correlates of 30-day mortality, which were subsequently integrated into a simplified clinical scoring system based on the number of comorbid risk factors. RESULTS: The study identified 44,408 patients (79 % women, 21 % men) with a mean age of 45 ± 11 years. The cumulative 30-day perioperative mortality rate was 0.14 %. The majority of the procedures performed included laparoscopic gastric bypass (54 %) followed by laparoscopic gastric banding (33 %) and open gastric bypass (7 %). Independent predictors associated with significantly increased mortality included age >45 years [adjusted odds ratio (AOR), 2.45], male gender (AOR = 1.77), a body mass index (BMI) of 50 kg/m(2) or higher (AOR, 2.48), open bariatric procedures (AOR, 2.34), diabetes (AOR, 2.88), functional status of total dependency before surgery (AOR, 27.6), prior coronary intervention (AOR, 2.66), dyspnea at preoperative evaluation (AOR, 4.64), more than 10 % unintentional weight loss in 6 months (AOR, 13.5), and bleeding disorder (AOR, 2.63). Ethnicity, hypertension, alcohol abuse, liver disease, and smoking had no significant association with mortality in this study. Risk stratification based on the number of preoperative comorbid factors showed an exponential increase in mortality as follows: 0-1 comorbidities (0.03 %), 2-3 comorbidities (0.16 %), and 4 comorbidities or more (7.4 %). CONCLUSION: This model provides a straightforward, precise, and easily applicable tool for identifying bariatric patients at low, intermediate, and high risk for in-hospital mortality. Notably, baseline functional status before surgery is the single most powerful predictor of perioperative survival and should be incorporated into risk stratification models.
Authors:
Muhammad Asad Khan; Roman Grinberg; Stelin Johnson; John N Afthinos; Karen E Gibbs
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-9
Journal Detail:
Title:  Surgical endoscopy     Volume:  -     ISSN:  1432-2218     ISO Abbreviation:  Surg Endosc     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8806653     Medline TA:  Surg Endosc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Division of Minimally Invasive and Bariatric Surgery, Staten Island University Hospital, 475 Seaview Avenue, Staten Island, NY, 10305, USA, masadk81@yahoo.com.
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