cbd cholecystectomy

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Mushinski M. Average charges for cholecystectomy open and laparoscopic procedures, 1994. Stat Bull Metrop Insur Co. 1995 Oct-Dec. 76(4):21-30. [Medline].


Miltenburg DM, Schaffer RL, Palit TK, Brandt ML. Laparoscopic cholecystectomy in children: is it better than open surgery?. Pediatr Endosurg Innov Techn. 2001 Mar. 5 (1):13-7.

Cbd cholecystectomy

Postcholecystectomy dilatation of the bile duct occured slightly in most cases. But some cases showed more than 3 mm dilatation over baseline. Asymptomatic bile duct dilatation of up to 10 mm can be considered as normal range in patients after cholecystectomy.

As abdominal ultrasonographic exams are frequently performed, bile duct dilatations are incidentally found in gallbladder resected patients. When bile duct dilatation is discovered in asymptomatic patients, it is often difficult to differentiate whether it is the physiological change of gallbladder resection or the early findings of bile duct lesions. In order to differentiate the diagnosis of asymptomatic bile duct dilatation, one needs to perform magnetic resonance cholangiopancreatography or endoscopic retrograde cholangiopancreatography (ERCP), which are both expensive and/or invasive tests. Therefore, it is necessary to understand the physiological change of the bile duct after cholecystectomy to reduce unnecessary testing for the early detection of bile duct lesions.


Department of Internal Medicine, Chungbuk National University College of Medicine, Medical Research Institute, Cheongju, Korea.


In studies involving eastern populations, a cross sectional study investigating the CBD diameter by using abdominal ultrasonography of Korean patients revealed the CBD diameter was 8.1 mm in the gallbladder resected group, which was wider than the 4.5 mm in the normal population [14]. One prospective study performed in Hong-Kong, investigating the CBD diameter before and after cholecystectomy by ERCP, revealed that 88.6% of 35 patients showed a dilatation of about 2.0 mm, and the degree of dilatation increased proportionally to time passed for the period of 4 to 14 months [15]. However, in a Taiwanese study, 197 patients revealed a slight CBD dilatation from 5.9 to 6.1 mm, and the degree of dilatation was not related to time passage [16]. Since the above studies on eastern populations applied different imaging techniques and showed different results, bile duct change after gallbladder resection still remains in dispute.