
426 Section V • Gallbladder
2. DISSECTION
◆ The patient can be placed in reverse Trendelenburg position to allow the duodenum, stomach,
and other intra-abdominal contents to fall away from the dissection fi eld.
◆ A 5-mm locking grasper is placed through the most lateral port, and the gallbladder is
retracted cephalad, toward the patient’s right shoulder (see Figure 41-2).
◆ A second grasper is placed through the medial 5-mm port and used to retract the infundib-
ulum of the gallbladder laterally (to the patient’s right side) and inferiorly, opening up the
triangle of Calot (bounded by the cystic duct, the common hepatic duct, and the liver edge)
and better exposing the cystic structures (see Figure 41-2). This can be done by the fi rst
assistant or by the operating surgeon.
◆ Using a Maryland dissector through the epigastric port, any adhesions between the gallblad-
der and the omentum, hepatic fl exure, stomach, and duodenum are taken down by grasp-
ing them close to the gallbladder and peeling them down along the axis of the cystic duct.
◆ The dissection of the triangle of Calot is best performed laterally to medially, fi rst exposing
the infundibulum–cystic duct junction on the patient’s right side, then medially. The cystic
duct is circumferentially dissected (see Figure 41-2).
◆ The cystic artery, which is usually medial and superior with the infundibulum retracted
laterally, is then dissected circumferentially in similar fashion using the Maryland dissector
(see Figure 41-2).
◆ No structure should be divided until the cystic duct is identifi ed at the cystic duct–
infundibulum junction and the cystic artery has been identifi ed and dissected free.
◆ At this point, cholangiography can be performed if indicated. Figure 41-3 demonstrates the
placement of a Kumar clamp through the 5-mm port. This clamp is placed entirely across
the cystic duct, occluding it and preventing fl ow of the contrast back into the gallbladder. A
cholangiocatheter with a needle tip is then placed through the clamp and into the cystic
duct distally. Contrast is injected, and a cholangiogram can be obtained to evaluate the bili-
ary anatomy and rule out any retained stones in the common bile duct.
◆ The cystic duct can now be ligated with clips applied with a 10-mm clip applier through
the epigastric port. Two clips should be placed distally and one proximally on the duct
(Figure 41-4).
◆ A curved or hook scissors is then used to divide between the most proximal and the two
distal clips (Figure 41-5).