Cholecystectomy is a common elective procedure for cholecystic diseases, including cholecystitis and cholelithiasis. Common bile duct injury is a major complication in both open and laparoscopic cholecystectomy (LC). The number of cholecystectomies performed has increased due to popularization and application of the laparoscopic technique, which has led to an increase in the number of bile duct injuries.

A 65-year-old man presented to the General Surgery Department with a complaint of repeated right upper quadrant pain for 2 years that had worsened over the previous day. The patient had a history of gallstones and hypertension. A LC was performed; it was found that a biliary stricture of 53 h duration was caused by a ligature injury of the common bile duct during the LC. Another laparoscopic exploration was performed, and the stricture was released.

LC is a common surgical procedure, but if a complication occurs, it is important for the surgeon to consider another exploratory surgery.

Cholecystectomy is a common elective procedure for cholecystic disease, including cholecystitis and cholelithiasis[1]. Common bile duct injury is a major complication in both open and laparoscopic cholecystectomy (LC)[2]. With advances in laparoscopic techniques, the incidence of common bile duct injury has decreased to 0.08%–0.42%[3,4]; however, the number of cholecystectomies performed has increased due to popularization and application of the laparoscopic technique, which has led to an increase in the number of bile duct injuries[2]. The main reasons for common bile duct injuries are complete transection and incorrect ligation[5]. We report a case of a biliary stricture caused by a clamping injury of the common bile duct during a LC and the process of patient recovery, which may be helpful to other surgeons who have encountered duct injuries.

A calculous cholecystitis was diagnosed.

Following treatment with a cephalosporin for 6 d, the TBIL decreased to 21.7 μmol/L, and the DBIL decreased to 7.2 μmol/L. A LC was performed without apparent complication; however, inflammation around Calot's triangle was noted. The pathologic diagnosis was reported as inflammation of the gallbladder and gallstones. On post-operative day 1, the patient complained of mild pain in the right upper quadrant. The pain worsened on post-operative day 2, and the physical examination was significant for jaundice. Laboratory testing revealed the following: TBIL, 133.7 μmol/L; DBIL, 98.1 μmol/L; ALT, 470 U/L; AST, 206 U/L; GGT, 124 U/L; and alkaline phosphatase, 112 U/L. MRI showed an interruption in the mid-common bile duct (Figure 1B). Therefore, a laparoscopic exploration was performed, and the common bile duct was not filled. Intra-operative ligation of the common bile duct was demonstrated due to cholecyst duct traction, similar to a class II Stewart-Way injury (Figure 1E b). The stricture was released, and the common bile duct filled. The patient was administered anti-inflammatories and hepatoprotective therapy for 7 d. The ALT and AST levels decreased slowly, and there was rebound on post-operative day 24. Anti-inflammatories and hepatoprotective therapy were continued for another 7 d. MRI was repeated on the 26^th day after releasing the ligature (Figure 1C). The ALT and AST levels had normalized by post-operative day 49. Interruption of the cholecystic bile duct was confirmed based on MRI changes (Figure 1D). The patient was asymptomatic, and the ALT and AST levels remained within the normal range on post-operative day 59.

The patient remained stable and healthy during the 10-mo follow-up evaluation.

LC became the gold standard for benign cholecystic diseases in the late 1980s, and > 750000 patients have undergone LCs in the United States[6]. However, with the large number of surgical procedures there have been a significant number of reported iatrogenic injuries. Injury of the common bile duct is a severe complication during LC, and it could lead to significant long-term morbidity, including recurrent strictures, inflammation of the biliary tract, and cirrhosis[7]. There are several causes leading to injury of the common bile duct, including anatomic variations of the extrahepatic bile ducts, inflammatory changes due to cholecystitis, intra-operative bleeding, and lack of surgical experience[2,8]. Biliary injuries that occur during LC are usually more severe than those that occur during open cholecystectomy because injuries are often near to or directly involve the second- and third-order bile ducts[8]. Based on the anatomic structure and mechanism of injury, the patient described herein had a class II Stewart-Way injury (Figure 1E)[9]. Way et al[9] reported 55 (22%) class II Stewart-Way injuries, of which 37 patients (68%) had injuries because of poor exposure. The present patient had a 2-year history of recurrent pain and inflammation around Calot's triangle. Drawing the ductus cysticus resulted in clamping the common bile duct and a stricture injury. Based on the MRI findings and elevated TBIL and DBIL levels on post-operative day 2, obstruction of the biliary tract was suspected, therefore a second laparoscopic surgery was performed to release the ligation. The time that had elapsed from ligation to release was 53 h. During the second procedure, a biliary stent was not placed, and biliary drainage was not performed. Post-operatively, the TBIL, DBIL, ALT, and AST levels slowly decreased (Figure 2A-D). On the 24^th day after the second surgery, TBIL and DBIL levels increased, which suggested scarring leading to a second stricture. Thus, 7 additional days of anti-inflammatories and hepatoprotective therapy was carried out, and TBIL and DBIL levels returned to the normal range; the GGT remained elevated and decreased more slowly (Figure 2E).

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Figure 2 Changes in bilirubin and liver enzymes: Total bilirubin; direct bilirubin; glutamic-pyruvic transaminase; glutamic-oxalacetic transaminase; gamma-glutamyl transpeptidase; and alkaline phosphatase. A: Total bilirubin changes: After releasing the ligature, the value decreases and there is an aggravated procedure on the 24^th day post-operatively; B: Direct bilirubin changes: After releasing the ligature, the value decreases and there is an aggravated procedure on the 24^th day post-operatively; C: Glutamic-pyruvic transaminase changes; D: Glutamic-oxalacetic transaminase changes; E: Gamma-glutamyl transpeptidase changes; F: Alkaline phosphatase changes: There are similar changes in C and D, E and F. TBIL: Total bilirubin; DBIL: Direct bilirubin; ALT: Glutamic-pyruvic transaminase; AST: Glutamic-oxalacetic transaminase; GGT: Gamma-glutamyl transpeptidase; ALP: Alkaline phosphatase.

We have presented a case involving a ligation injury to the common bile duct that led to a biliary stricture and provide a detailed description of the recovery process. The patient had a biliary ligation for 53 h with an aggravated procedure 24 d after the clamping injury. LC is a common surgical procedure, but if a complication occurs, it is important for the surgeon to consider another exploratory surgery.