[Laparoscopic gastric bypass: computed tomography appearance of common postoperative changes and complications]

Abstract

Laparoscopic Roux-en-Y bypass is being increasingly used for weight reduction in patients with morbid obesity. Unfortunately, some complications can occur after this procedure, the most frequent being intestinal obstruction (due to stenosis of the anastomosis at the distal end of the loop, internal hernias, bands, and adhesions), anastomotic leaks, and bleeding. This article provides basic knowledge about the surgical technique and its correlation with the common postoperative changes with the aim of facilitating the interpretation of CT findings and the identification of postoperative complications in these patients.

Keywords: Bariatric surgery; Bypass gástrico laparoscópico en Y de Roux; Cirugía bariátrica; Complicaciones posquirúrgicas; Helical computed tomography.; Multidetector computed tomography; Postoperative complications; Roux-en-Y gastric bypass; Tomografía computarizada espiral.; Tomografía computarizada multidetector.