Colette S Inaba1, Christina Y Koh1, Sarath Sujatha-Bhaskar1, Jack P Silva1, Yanjun Chen2, Danh V Nguyen3, Ninh T Nguyen4. 1. Department of Surgery, University of California Irvine Medical Center, Orange, CA. 2. Institute for Clinical and Translational Science, University of California Irvine, Orange, CA. 3. Department of Medicine, University of California Irvine Medical Center, Orange, CA; Institute for Clinical and Translational Science, University of California Irvine, Orange, CA. 4. Department of Surgery, University of California Irvine Medical Center, Orange, CA. Electronic address: ninhn@uci.edu.
Abstract
BACKGROUND: Contemporary mortality after bariatric surgery is low and has been decreasing over the past 2 decades. Most studies have reported inpatient or 30-day mortality, which may not represent the true risk of bariatric surgery. The objective of this study was to examine 1-year mortality and factors predictive of 1-year mortality after contemporary laparoscopic bariatric surgery. STUDY DESIGN: Using the 2008 to 2012 Bariatric Outcomes Longitudinal Database (BOLD), data from 158,606 operations were analyzed, including 128,349 (80.9%) laparoscopic Roux-en-Y gastric bypass (LRYGB) and 30,257 (19.1%) laparoscopic sleeve gastrectomy (LSG) operations. Multivariate logistic regression was used to determine independent risk factors associated with 1-year mortality for each type of procedure. RESULTS: The 30-day and 1-year mortality rates for LRYGB were 0.13% and 0.23%, respectively, and for LSG were 0.06% and 0.11%, respectively. Risk factors for 1-year mortality included older age (LRYGB: adjusted odds ratio [AOR] 1.05 per year, p < 0.001; LSG: AOR 1.08 per year, p < 0.001); male sex (LRYGB: AOR 1.88, p < 0.001); higher BMI (LRYGB: AOR 1.04 per unit, p < 0.001; LSG: AOR 1.05 per unit, p = 0.009); and the presence of 30-day leak (LRYGB: AOR 25.4, p < 0.001; LSG: AOR 35.8, p < 0.001), 30-day pulmonary embolism (LRYGB: AOR 34.5, p < 0.001; LSG: AOR 252, p < 0.001), and 30-day hemorrhage (LRYGB: AOR 2.34, p = 0.001). CONCLUSIONS: Contemporary 1-year mortality after laparoscopic bariatric surgery is much lower than previously reported, at <0.25%. It is important to continually refine techniques and perioperative management in order to minimize leaks, hemorrhage, and pulmonary embolus after bariatric surgery because these complications contribute to a higher risk of mortality.
BACKGROUND: Contemporary mortality after bariatric surgery is low and has been decreasing over the past 2 decades. Most studies have reported inpatient or 30-day mortality, which may not represent the true risk of bariatric surgery. The objective of this study was to examine 1-year mortality and factors predictive of 1-year mortality after contemporary laparoscopic bariatric surgery. STUDY DESIGN: Using the 2008 to 2012 Bariatric Outcomes Longitudinal Database (BOLD), data from 158,606 operations were analyzed, including 128,349 (80.9%) laparoscopic Roux-en-Y gastric bypass (LRYGB) and 30,257 (19.1%) laparoscopic sleeve gastrectomy (LSG) operations. Multivariate logistic regression was used to determine independent risk factors associated with 1-year mortality for each type of procedure. RESULTS: The 30-day and 1-year mortality rates for LRYGB were 0.13% and 0.23%, respectively, and for LSG were 0.06% and 0.11%, respectively. Risk factors for 1-year mortality included older age (LRYGB: adjusted odds ratio [AOR] 1.05 per year, p < 0.001; LSG: AOR 1.08 per year, p < 0.001); male sex (LRYGB: AOR 1.88, p < 0.001); higher BMI (LRYGB: AOR 1.04 per unit, p < 0.001; LSG: AOR 1.05 per unit, p = 0.009); and the presence of 30-day leak (LRYGB: AOR 25.4, p < 0.001; LSG: AOR 35.8, p < 0.001), 30-day pulmonary embolism (LRYGB: AOR 34.5, p < 0.001; LSG: AOR 252, p < 0.001), and 30-day hemorrhage (LRYGB: AOR 2.34, p = 0.001). CONCLUSIONS: Contemporary 1-year mortality after laparoscopic bariatric surgery is much lower than previously reported, at <0.25%. It is important to continually refine techniques and perioperative management in order to minimize leaks, hemorrhage, and pulmonary embolus after bariatric surgery because these complications contribute to a higher risk of mortality.
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