Post cholecystectomy injury

Q   Post cholecystectomy Injury, which is true?

a.       Bile duct leak in approx 1%

b.      Open cholecystectomy bile duct injury 0.5 to 1 %

c.       Most common cause of bile leak is cystic stump blowout and duct of lushka injury

d.      Type E injury is due to clipping of CBD by mistake