Related Experiment Video
Updated: Feb 1, 2026

Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice
Published on: March 20, 2017
Laparoscopic Sleeve Gastrectomy has a Lower Risk of Postoperative Bleeding Than Laparoscopic Roux-en-Y Gastric Bypass
Syed Nabeel Zafar1, Nicole Shockcor, Nikhil Prasad
1Department of Surgery, University of Maryland Medical Center, Baltimore, MD.
Abstract:
Measures to reduce postoperative bleeding (POB) after bariatric surgery is skewed toward laparoscopic sleeve gastrectomy (LSG). We use 2015 Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) to characterize the differences in bleeding rates between LSG and laparoscopic Roux-en-Y gastric bypasses (LRYGB). Propensity score matching and multivariable logistic regressions tested for independent differences in POB rates. A total of 168,093 patients from 742 centers were identified in the data set. After selection 36,925 patients with LRYGB and 20,020 patients with LSG were included in the analysis. A total of 710 (1.25%) patient suffered a POB. The independent odds of POB were 38% lower for patients having LSG compared with those having LRYGB (odds ratio, 0.62; 95% confidence interval=0.51-0.76). This difference is more pronounced with intraoperative securing of the staple line. Appropriate measures to reduce POB after each type of bariatric procedure is warranted.
Related Concept Videos
Bleeding in Fresh Concrete
Bleeding can cause several issues in the concrete structure. Sometimes, the rising water gets trapped beneath large aggregate...
Gastric Motility
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...
Relative Risk
Gastric Emptying
Gastric Phase of Digestion
When food enters the stomach, it stretches the stomach walls and activates stretch receptors. This triggers local reflexes of the enteric nervous system, mediated through the myenteric plexus. These...
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...

