Laparoscopic Roux-en-Y gastric bypass: preoperative determinants of prolonged operative times, conversion to open gastric bypasses, and XXXX .

@entity1 @entity2175 @entity1560 @entity548 @entity409 @entity260 @entity281 @entity1144 @entity358
BACKGROUND: We examined our database of 600 consecutive laparoscopic Roux-en-Y gastric bypasses (LRYGBP) to determine predictors of prolonged operations, conversion to open operations and @entity260 . METHODS: All were primary bariatric operations. Body habitus, gender, and previous surgery were evaluated. RESULTS: Regression analysis showed the following parameters to correlate positively with increased operative time: 1) Waist, 2) BMI, 3) Weight, and 4) Waist/Hip ratio. Height and hip measurement did not correlate with operative time. No previous operations affected operative time. Conversion to open operation was necessary in 25/600 cases (4.2%). Conversion was necessary with larger waist measurement (P=0.00007) and increased waist/hip ratio (P=0.01) but not BMI. Conversion occurred more frequently in males (6/43, 14.0%) than females (19/557, 3.4%). This trend was statistically significant (P=0.006). An enlarged liver was responsible for 12/25 conversions. 6/12 @entity1 with large livers had @entity2175 and 6/12 @entity1 had biopsy-proven @entity1560 . 2/12 had huge @entity409 that were not biopsed. Liver function tests were normal in 8/8 @entity1 preoperatively. Complications including leak (5), @entity358 (2), @entity548 (12), stenosis of the GI tract (24) and @entity281 (7) occurred in 48/600 @entity1 (8.0%). There were no deaths. Complications did not correlate with body habitus, gender, or previous surgery. CONCLUSION: Larger @entity1 as measured by waist measurement, weight, and BMI but not previous surgery prolonged LRYGBP. Conversion to open surgery was more frequently necessary in @entity1 with larger abdomens, @entity1144 , and @entity2175 . Complications did not correlate with any preoperative parameter measured.
