Rate of duodenal-biliary reflux increases in patients with recurrent common bile duct stones: evidence from barium meal examination

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• 作者：Rongchun Zhang ; MD¹ ; ² ; Hui Luo ; MD² ; Yanglin Pan ; MD² ; Lina Zhao ; MD³ ; Junqiang Dong ; MD⁴ ; Zhiguo Liu ; MD² ; Xiangping Wang ; MD² ; Qin Tao ; MD² ; Guohua Lu ; MD¹ ; ² ; ; Xuegang Guo ; MD² ;
• 关键词：CBD ; common bile duct ; CBDS ; common bile duct stone ; DBR ; duodenal-biliary reflux ; DIHR ; duodenal-intrahepatic biliary duct reflux ; EST ; endoscopic sphincterotomy ; GB ; gallbladder ; IHBD ; intrahepatic bile duct
• 刊名：Gastrointestinal Endoscopy
• 出版年：2015
• 出版时间：October 2015
• 年：2015
• 卷：82
• 期：4
• 页码：660-665
• 全文大小：461 K

文摘

Stone recurrence is a common late adverse event after ERCP in patients with common bile duct stones (CBDS). Duodenal-biliary reflux (DBR) is considered a major cause of CBDS recurrence. However, specific evidence is still lacking.

Objective

To investigate the DBR rate in patients with recurrent CBDS after ERCP.

Design

A prospective case-control study.

Setting

A tertiary center.

Patients

During follow-up, patients with a history of either recurrent CBDS (recurrence group) or nonrecurrent CBDS (control group) were invited to participate in the study. All patients had previously undergone successful CBDS removal by ERCP. Patients in the control group were matched with the recurrence group by age and gender in a 1:1 ratio. Patients with gallbladder stones, hepatolithiasis, remnant CBDS, CBD strictures, or stents were excluded.

Interventions

Standard barium meal examination, MRCP, and enhanced abdominal CT.

Main Outcome Measurements

DBR.

Results

Thirty-two patients with a history of recurrent CBDS and 32 matched control subjects were enrolled. Baseline characteristics and parameters regarding the first ERCP were comparable between the 2 groups. The DBR rate was significantly higher in the recurrent than in the control group (68.8% vs 15.6%, P < .001). Multivariate analysis indicated that DBR (OR, 9.59; 95% CI, 2.65-34.76) and acute distal CBD angulation (OR, 5.48; 95% CI, 1.52-19.78) were independent factors associated with CBDS recurrence. DBR rates in patients with no, single, or multiple recurrences were 15.6%, 60.9%, and 88.9%, respectively (P < .001). Intrahepatic bile duct reflux was more common in patients with multiple recurrences.

Limitations

Small sample size.

Conclusions

DBR is correlated with CBDS recurrence in patients who had previously undergone ERCP. DBR and acute distal CBD angulation are 2 independent risk factors related to stone recurrence. (Clinical trial registration number: pan id="intref0010" class="interref" data-locatorType="ctgov" data-locatorKey="NCT02329977">NCT02329977pan>.)