Observed Variability in Sleeve Gastrectomy Volume and Compliance Does Not Correlate to Postoperative Outcomes. Issue 4 (August 2015)

• Record Type: Journal Article
• Authors: Toro, Juan P.; Patel, Ankit D.; Lytle, Nathaniel W.; Perez, Sebastian; Edward, Lin; Singh, Arvinpal; Davis, S. Scott
• Is Part Of: Surgical laparoscopy endoscopy & percutaneous techniques. Volume 25:Issue 4(2015)
• Publication Date: 2015-08
• Subjects: laparoscopic sleeve gastrectomy -- stomach size -- gastric capacity -- weight loss -- hunger score -- bariatric surgery -- bariatric surgical outcomes -- hunger score; Endoscopic surgery -- Periodicals; Laparoscopic surgery -- Periodicals; Endoscopy -- Periodicals; Laparoscopy -- Periodicals; 617.550597
• DOI: 10.1097/SLE.0000000000000181
• Languages: English
• ISSNs: 1530-4515

Abstract

Abstract : Background: Restrictive bariatric procedures reduce gastric capacity as a primary mechanism of action. Intraoperatively, surgeons observe variability in size and compliance of specimens. We hypothesized that higher gastric specimen volume or tissue compliance would respond better to restrictive procedures. Materials and Methods: Consecutive patients undergoing laparoscopic sleeve gastrectomy between September 2012 and September 2013 were enrolled. Specimens were insufflated at graduated pressure points creating pressure volume curves, and compliance was calculated. Postoperative weight loss and a hunger scores were recorded. Correlations were determined by Spearman correlation. Results: Eighty-four patients consented to enrollment. Mean age, weight, and body mass index (BMI) were 45±12 years, 126±23 kg, and 45.4±6 m/kg 2, respectively. The resected specimens varied in insufflated capacity from 0.3 to 1.8 (0.71±0.32) L and compliance varied from 14.3 to 85.7 (36.1±14.7) cc/mm Hg. Male patients had a larger greater curvature length (GCL) ( P <0.001), staple line length (SLL) ( P =0.03), gastric volume (GV) ( P =0.002), and gastric compliance (GC) ( P <0.001). Neither GV nor GC correlated to excess body weight loss (EBWL%) as hypothesized. There was an inverse correlation between hunger score and GV ( P =0.010). The mean 1-month, 3-month, 6-month, and 12-month EBWL was 17.4%, 33.2%, 43.7%, and 54.1%, respectively. Follow-up was 71.4% at 1 month, 39.3% at 3 months, 54.8% at 6 months, and 42.9% at 12 months. Conclusions: Sleeve gastrectomy specimens exhibit nearly 6-fold variability in both volume and compliance. A large GC is anticipated in male and tall subjects. These observations do not appear to be correlated to %EBWL.