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Peri-ampullary duodenal diverticulum: effect on extrahepatic bile duct dilatation after cholecystectomy

Authors
 J.H. Ham  ;  J.-S. Yu  ;  J.M. Choi  ;  E.-S. Cho  ;  J.H. Kim  ;  J.-J. Chung 
Citation
 CLINICAL RADIOLOGY, Vol.74(9) : 735.e15-735.e22, 2019 
Journal Title
 CLINICAL RADIOLOGY 
ISSN
 0009-9260 
Issue Date
2019
Abstract
AIM: To investigate the effect of peri-ampullary duodenal diverticula (PAD) on extrahepatic bile duct (EHBD) dilatation before and after cholecystectomy. MATERIALS AND METHODS: During a 5-year period, a total of 860 consecutive patients with prior cholecystectomy were examined using abdominal computed tomography (CT). After exclusion of those with other obstructive EHBD lesions, 61 patients with PAD were recruited for evaluation of EHBD dilatation before and after cholecystectomy and were compared with a randomly sampled control group (n=113) without PAD. EHBD diameter was measured on coronal reconstruction CT using electronic callipers on the picture archiving and communication system monitors by two reviewers in consensus. RESULTS: There was no significant difference in EHBD diameter between PAD and non-PAD groups (8.2±2.8 versus 7.8±2.3 mm; p=0.276) before cholecystectomy. Compared with preoperative diameter, EHBD was significantly dilated after cholecystectomy (7.9±2.5 versus 9.8±3.4 mm, p<0.001), regardless of the presence of PAD; the degree of change was more prominent in the PAD group than in the non-PAD group (3.3±2.4 versus 1.1±1.6 mm; p<0.001) after surgery. The size of PAD did not affect the degree of EHBD dilatation after cholecystectomy (p=0.522). In the non-PAD group, the degree of EHBD dilatation was positively correlated with the follow-up interval after cholecystectomy (r=0.298; p=0.002), while the PAD group showed no significant correlation (r=-0.036; p=0.797). In patients with ≥2 mm postoperative EHBD dilatation, PAD incidence was higher than that in other patients (odds ratio, 8.739; p<0.001). CONCLUSION: Regardless of their size or postoperative follow-up duration, PAD induce marked post-cholecystectomy biliary dilatation.
Full Text
https://www.sciencedirect.com/science/article/pii/S0009926019302740?via%3Dihub
DOI
10.1016/j.crad.2019.05.031
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Joo Hee(김주희) ORCID logo https://orcid.org/0000-0001-5383-3602
Yu, Jeong Sik(유정식) ORCID logo https://orcid.org/0000-0002-8171-5838
Chung, Jae Joon(정재준) ORCID logo https://orcid.org/0000-0002-7447-1193
Cho, Eun Suk(조은석)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/173270
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