Laparoscopic Small Bowel Resection and Anastomosis
Depending on the habitus of the patient, the nature of the pathology, and the mobility of the small bowel, there are several approaches that can be used in laparoscopic small bowel resection and anastomosis. The technique shown here uses laparoscopic mobilization and mesenteric division, followed by extracorporeal completion of resection and anastomosis. It is also possible to construct a fully intracorporeal anastomosis. The advantages are minor, however, because an incision must be made to retrieve the specimen. In some circumstances, the entire mesenteric division and anastomosis may be done after exteriorizing the specimen—the laparoscope then is used simply to localize and elevate the relevant loop. References at the end of this chapter give further technical tips on applications in the setting of adhesive small bowel obstruction and small bowel tumors.
Steps in Procedure
Obtain laparoscopic access
Explore abdomen and identify segment to be resected
Suspend the selected loop with traction sutures brought out through anterior abdominal wall
Create window in mesentery at antimesenteric border of bowel
Divide mesentery with vascular endoscopic stapler
Make small incision and deliver loop of intestine
Perform extracorporeal division of bowel and anastomosis
Close mesenteric defect
Return bowel to abdominal cavity
Close incision and any trocar sites over 5 mm
Hallmark Anatomic Complications
Missed lesion
Orientation and Initial Mobilization (Fig. 75.1)
Technical Points
Place the first trocar at the umbilicus and explore the abdomen. If the lesion is in the proximal small intestine, set up the laparoscopic field and trocar sites to allow comfortable access to the left upper quadrant (Fig. 75.1A). For middle or distal small intestine, a right lower quadrant field is more appropriate (Fig. 75.1B). Explore the abdomen and trace the small bowel from the ligament of Treitz to the terminal ileum. Confirm the location of the segment to be resected. Identify the proximal and distal resection margins.