Minireviews
Copyright ©The Author(s) 2019.
World J Gastrointest Surg. Feb 27, 2019; 11(2): 62-84
Published online Feb 27, 2019. doi: 10.4240/wjgs.v11.i2.62
Table 1 Predictors of difficult cholecystectomy[39,40,71]
History
Male gender
Higher age (> 65 yr)
Increased interval between onset and presentation (> 72-96 h) in acute cholecystitis
Previous multiple attacks of biliary colic
History of acute cholecystitis
Upper abdominal surgery
Prior attempt at cholecystectomy (including cholecystostomy)
Physical examination
Fever
Higher ASA score
Morbid obesity
Laboratory tests
Raised leucocyte count (> 18000/mm3)
Raised C-reactive protein
Imaging (USG/CT/MRI-MRCP)
Thick walled gallbladder (> 4-5 mm)
Small contracted gallbladder
Distended gallbladder with impacted stone in neck
Gangrenous gallbladder/gallbladder perforation
Mirizzi syndrome/Cholecystoenteric fistula
Cirrhosis/extrahepatic portal vein obstruction (portal cavernoma) with portal hypertension
Intraoperative
Small shrunken gallbladder not visualized on initial exploration
Liver edge retracted with fissure/depression/puckering near fundus (Liver pucker sign, Figure 3C)
Fatty/firm cirrhotic liver (difficulty in retraction)
Table 2 Concept of “time out”
Use B-SAFE to be safe
To be safe: Use time-out
Aim: Reorientation/reassessment
What to do: Stop→Wait→Reassess→Act
What to see: B-SAFE
When to see
1 Before beginning dissection in hepatocystic triangle
2 Whenever there is any doubt about anatomy
3 After achieving CVS and before dividing cystic duct and artery (define, decide and then divide)
Table 3 Stopping rules: Identification of “Red flags”[38]
Stopping rules
More than 2 tubular structures entering gallbladder
Unusually large presumed cystic artery (this may be hepatic artery)
Large artery pulsations present behind the presumed cystic duct (this duct may be common hepatic/bile duct)
Medium-large clip fails to occlude ductal lumen (this duct may be hepatic/bile duct)
Large ductal structure that can be traced behind the duodenum (this duct is common bile duct)
Excessive fibrofatty/lymphatic tissue noted around the presumed cystic duct (this may be common hepatic/bile duct)
Bile leak seen with intact gallbladder
Bleeding requiring blood transfusion