The CBD diameters that were measured at each point were expressed as mean and standard deviation, and the change was investigated by t-test. The changes of a single patient before, 6 months after, and 12 months after the surgery were analyzed using a paired t-test wherein the P-value results of less than 0.05 were interpreted as significant.
Common bile duct (CBD) diameter increase 12 months after surgery.
Next, what clinical characteristics can be observed in the patients of bile duct dilatation after the cholecystectomy? Although the general clinical characteristics of bile duct dilatation have not been well defined, some reports showed that it is commonly observed when the initial diameter of the bile duct is smaller before surgery  and when the patient is older . But in the present study, the patients’ age, sex, diagnosis and bile duct diameter did not have effect on the bile duct dilatation after surgery.
3 Department of Surgery, Chungbuk National University College of Medicine, Medical Research Institute, Cheongju, Korea.
Before surgery, 82.8% of patients had a CBD diameter of less than 5 mm while 17.2% of patients were in the 5 to 6.9 mm range making the mean diameter 4.1 ± 1.1 mm. The CBD diameter was found to increase by age. Eight patients 60 years or older had CBD diameters of 4.5 ± 0.8 mm compared to 56 patients less than 60 years of age with CBD diameters of 4.1 ± 1.8 mm (P < 0.05). Other than that, there were no significant differences observed in relation to sex or gallbladder disease type.
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Date and time: Mon, 17 Jan 2022 08:12:38 GMT