TY - JOUR
T1 - The role of peroral video cholangioscopy in patients with IgG4-related sclerosing cholangitis
AU - Itoi, Takao
AU - Kamisawa, Terumi
AU - Igarashi, Yoshinori
AU - Kawakami, Hiroshi
AU - Yasuda, Ichiro
AU - Itokawa, Fumihide
AU - Kishimoto, Yuui
AU - Kuwatani, Masaki
AU - Doi, Shinpei
AU - Hara, Seiichi
AU - Moriyasu, Fuminori
AU - Baron, Todd H.
N1 - Funding Information:
The authors are indebted to Mr. Roderick J. Turner, Associate Professor Edward F. Barroga, and Professor J. Patrick Barron, Chairman of the Department of International Medical Communications of Tokyo Medical University, for their editorial review of this manuscript. We are also very grateful to Dr. Satoshi Morita of the Department of Biostatistics and Epidemiology, Yokohama City University Graduate School of Medicine and University Medical Center, for his advice regarding statistical analysis. This work was supported in part by the Research Committee of Intractable Pancreatic Diseases (Principal investigator: Tooru Shimosegawa) provided by the Ministry of Health, Labour, and Welfare of Japan.
PY - 2013/4
Y1 - 2013/4
N2 - Background The cholangioscopic features of IgG4-related sclerosing cholangitis (IgG4-SC) remain undefined. The aim of this study was to clarify these endoscopic features using peroral video cholangioscopy (PVCS) in IgG4-SC patients. Methods PVCS was performed in 33 patients: IgG4-SC (n = 13); primary sclerosing cholangitis (PSC; n = 5); and cholangiocarcinoma (n = 15), which included hilar cholangiocarcinoma (HCCA; n = 5) and distal cholangiocarcinoma (DCCA; n = 10). Results The most frequent findings on PVCS in the IgG4- SC patients were dilated (62 %) and tortuous (69 %) vessels, and absence of partially enlarged vessels. The incidence of dilated and tortuous vessels was significantly higher in IgG4-SC patients than in PSC patients (p = 0.015). Scarring and pseudodiverticula were found significantly more often in PSC patients than in IgG4-SC patients (p = 0.001 and p = 0.0007, respectively). The incidence of partially enlarged vessels was significantly higher in DCCA patients than in IgG4-SC patients (p = 0.004). In contrast, the incidence of dilated vessels was significantly higher in IgG4-SC patients than in HCCA patients (p = 0.015). PVCS performed after corticosteroid therapy showed resolution of bile duct stenosis and dilated, tortuous, or partially enlarged vessels, as well as resolution of friability in all patients with IgG4-SC. Conclusion Cholangioscopy was useful in differentiating IgG4-SC from PSC. In addition, monitoring the patterns of proliferative vessels on PVCS may be useful to differentiate IgG4-SC from cholangiocarcinoma.
AB - Background The cholangioscopic features of IgG4-related sclerosing cholangitis (IgG4-SC) remain undefined. The aim of this study was to clarify these endoscopic features using peroral video cholangioscopy (PVCS) in IgG4-SC patients. Methods PVCS was performed in 33 patients: IgG4-SC (n = 13); primary sclerosing cholangitis (PSC; n = 5); and cholangiocarcinoma (n = 15), which included hilar cholangiocarcinoma (HCCA; n = 5) and distal cholangiocarcinoma (DCCA; n = 10). Results The most frequent findings on PVCS in the IgG4- SC patients were dilated (62 %) and tortuous (69 %) vessels, and absence of partially enlarged vessels. The incidence of dilated and tortuous vessels was significantly higher in IgG4-SC patients than in PSC patients (p = 0.015). Scarring and pseudodiverticula were found significantly more often in PSC patients than in IgG4-SC patients (p = 0.001 and p = 0.0007, respectively). The incidence of partially enlarged vessels was significantly higher in DCCA patients than in IgG4-SC patients (p = 0.004). In contrast, the incidence of dilated vessels was significantly higher in IgG4-SC patients than in HCCA patients (p = 0.015). PVCS performed after corticosteroid therapy showed resolution of bile duct stenosis and dilated, tortuous, or partially enlarged vessels, as well as resolution of friability in all patients with IgG4-SC. Conclusion Cholangioscopy was useful in differentiating IgG4-SC from PSC. In addition, monitoring the patterns of proliferative vessels on PVCS may be useful to differentiate IgG4-SC from cholangiocarcinoma.
KW - Bile duct diseases
KW - Endoscopic retrograde cholangiopancreatography
KW - Peroral cholangioscopy
UR - http://www.scopus.com/inward/record.url?scp=84878657764&partnerID=8YFLogxK
U2 - 10.1007/s00535-012-0652-6
DO - 10.1007/s00535-012-0652-6
M3 - 学術論文
C2 - 22948487
AN - SCOPUS:84878657764
SN - 0944-1174
VL - 48
SP - 504
EP - 514
JO - Journal of Gastroenterology
JF - Journal of Gastroenterology
IS - 4
ER -