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Lim DH, Jeong JY, Nam S, Choi J, Kwon HC, Yoon YB, Kim Y, Chin B. Clinical Characteristics and Treatment Outcomes of Patients with Hepatitis C Virus and Human Immunodeficiency Virus Coinfection: Experience at a Single Center in Korea. J Korean Med Sci 2021; 36:e308. [PMID: 34845874 PMCID: PMC8629715 DOI: 10.3346/jkms.2021.36.e308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/13/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Because of the very low incidence of human immunodeficiency virus (HIV) coinfection in Korea, data on hepatitis C virus (HCV)/HIV coinfection are limited. This study aimed to investigate the clinical characteristics and treatment outcomes of patients with HCV/HIV coinfection in Korea. METHODS We performed a retrospective cohort study of all HCV-monoinfected and HCV/HIV-coinfected patients treated with antivirals at National Medical Center in Seoul, Korea, between January 2009 and March 2020. RESULTS We enrolled 220 HCV-monoinfected and 23 HCV/HIV-coinfected patients treated with antivirals. The HCV/HIV-coinfected patients were younger (HCV vs. HCV/HIV: 57.3 ± 11.3 vs. 40.7 ± 10.1 years, P < 0.001) and had a higher proportion of men (HCV vs. HCV/HIV: 54.5% [n = 120] vs. 91.3% [n = 21], P < 0.001) than the HCV-monoinfected patients. Genotype 1b and 2 were most common in both HCV monoinfection and HCV/HIV coinfection groups. HCV-monoinfected patients had a higher incidence of genotype 1b and 2 than HCV/HIV-coinfected patients (HCV vs. HCV/HIV: 95.4% [n = 210] vs. 73.9% [n = 17], P < 0.001), while the HCV/HIV-coinfected patients had genotype 1a (HCV vs. HCV/HIV: 1.8% [n = 4] vs. 21.7% [n = 5], P < 0.001). The fibrosis-4 index was significantly lower in the HCV/HIV-coinfected patients than in the HCV-monoinfected patients (HCV vs. HCV/HIV: 3.81 ± 3.38 vs. 1.66 ± 1.10, P < 0.001). Among the direct-acting antivirals (DAA)-treated patients, the sustained viral response (SVR) rate did not differ significantly between both groups (HCV vs. HCV/HIV: 94.9% [93/99] vs. 90.9% [10/11], P = 0.480). CONCLUSION In Korea, the HCV/HIV-coinfected patients who received antiviral treatment were younger, had higher proportion of men and incidence of genotype 1a, and had less advanced fibrosis than the HCV-monoinfected patients. In actual clinical settings, HCV/HIV-coinfected patients show excellent SVR to DAA treatment, similar to HCV-monoinfected patients.
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Affiliation(s)
- Dae Hyun Lim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Medical Center, Seoul, Korea
| | - Jae Yoon Jeong
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Medical Center, Seoul, Korea.
| | - Seongwoo Nam
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Medical Center, Seoul, Korea.
| | - Jongkyoung Choi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Medical Center, Seoul, Korea
| | - Hyeok Choon Kwon
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Medical Center, Seoul, Korea
| | - Yong Bum Yoon
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Medical Center, Seoul, Korea
| | - Yeonjae Kim
- Division of Infectious Diseases, Department of Internal Medicine, National Medical Center, Seoul, Korea
| | - BumSik Chin
- Division of Infectious Diseases, Department of Internal Medicine, National Medical Center, Seoul, Korea
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Paik WH, Ryu JK, Jeong KS, Park JM, Song BJ, Lee SH, Kim YT, Yoon YB. Clobenpropit enhances anti-tumor effect of gemcitabine in pancreatic cancer. World J Gastroenterol 2014; 20:8545-8557. [PMID: 25024609 PMCID: PMC4093704 DOI: 10.3748/wjg.v20.i26.8545] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Revised: 02/27/2014] [Accepted: 04/09/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the anti-tumor effect of clobenpropit, which is a specific H3 antagonist and H4 agonist, in combination with gemcitabine in a pancreatic cancer cell line.
METHODS: Three kinds of human pancreatic cancer cell lines (Panc-1, MiaPaCa-2, and AsPC-1) were used in this study. Expression of H3 and H4 receptors in pancreatic cancer cells was identified with Western blotting. Effects of clobenpropit on cell proliferation, migration and apoptosis were evaluated. Alteration of epithelial and mesenchymal markers after administration of clobenpropit was analyzed. An in vivo study with a Panc-1 xenograft mouse model was also performed.
RESULTS: H4 receptors were present as 2 subunits in human pancreatic cancer cells, while there was no expression of H3 receptor. Clobenpropit inhibited cell migration and increased apoptosis of pancreatic cancer cells in combination with gemcitabine. Clobenpropit up-regulated E-cadherin, but down-regulated vimentin and matrix metalloproteinase 9 in real-time polymerase chain reaction. Also, clobenpropit inhibited tumor growth (gemcitabine 294 ± 46 mg vs combination 154 ± 54 mg, P = 0.02) and enhanced apoptosis in combination with gemcitabine (control 2.5%, gemcitabine 25.8%, clobenpropit 9.7% and combination 40.9%, P = 0.001) by up-regulation of E-cadherin and down-regulation of Zeb1 in Panc-1 xenograft mouse.
CONCLUSION: Clobenpropit enhanced the anti-tumor effect of gemcitabine in pancreatic cancer cells through inhibition of the epithelial-mesenchymal transition process.
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Kim J, Ryu JK, Park JM, Paik WH, Song BJ, Kim YT, Yoon YB. Clinical factors associated with accuracy of EUS-FNA for pancreatic or peripancreatic solid mass without on-site cytopathologists. J Gastroenterol Hepatol 2014; 29:887-92. [PMID: 24783252 DOI: 10.1111/jgh.12497] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND AIMS Endoscopic ultrasound-guided fine needle aspiration (EUSFNA) is a safe and effective technique for tissue diagnosis in patients with pancreatic or peripancreatic solid masses. However, the procedure is difficult to accomplish without an on-site cytopathologist. The aims of this study were to examine the outcomes of EUS-FNA for pancreatic or peripancreatic solid masses without an on-site cytopathologist and to determine the factors associated with diagnostic accuracy. METHODS From December 2005 to November 2011, 230 patients with pancreatic or peripancreatic solid masses had 240 EUS-FNAs performed without an on-site cytopathologist. The medical records of the 230 patients from a single tertiary center were retrospectively reviewed. RESULTS Among the 230 patients who underwent EUS-FNA, 201 patients (88%) had malignancy, which included 171 adenocarcinomas (74%). Assuming that the cytopathological malignancy was positive or suspicious for malignant cells with cytology, the accuracy without an on-site cytopathologist was 67.9%. However, the accuracy increased from 40.0% for the first 30 cases (from 2006 to 2008) to 83.3% for the last 30 cases (in 2011) and was constantly over 80.0% starting from the sixth octile onwards for every 30 cases (in 2011). From the analysis of factors associated with the accuracy of the diagnosis using logistic regression analysis, the number of needle passes and the experience of endosonographer were statistically associated with the diagnostic accuracy. CONCLUSIONS In the case of performing EUS-FNA for pancreatic or peripancreatic solid masses without an on-site cytopathologist, the experience of the endosonographer, and the number of needle passes were associated with the diagnostic accuracy.
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Kim Y, Kim MO, Shin JS, Park SH, Kim SB, Kim J, Park SC, Han CJ, Ryu JK, Yoon YB, Kim YT. Hedgehog signaling between cancer cells and hepatic stellate cells in promoting cholangiocarcinoma. Ann Surg Oncol 2014; 21:2684-98. [PMID: 24682719 DOI: 10.1245/s10434-014-3531-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Aberrant Hedgehog (HH) signaling activation is important in cancer growth and mediates the interaction between cancer cells and the surrounding stromal cells. This study investigated the role of HH signaling on the growth of cholangiocarcinoma (CC), focusing on the interaction of CC cells with stromal cells. METHODS To evaluate the interaction between human CC cells (SNU-1196, SNU-246, SNU-308, SNU-1079, and HuCCT-1) and stromal cells (hepatic stellate cell line, Lx-2), co-culture proliferation, migration, and invasion assays were performed. In vivo nude mice experiments were conducted using two groups-HuCCT-1 single implant xenograft (SX) and co-implant xenograft (CX) with HuCCT-1 and Lx-2. RESULTS When HuCCT-1 cells were co-cultured with Lx-2 cells, the expression of HH signaling-related proteins increased in both HuCCT-1 and Lx-2 cells. Co-culture with Lx-2 cells stimulated the proliferation, migration, and invasion of CC cells, and these effects were mediated by HH signaling. Co-culture of HuCCT-1 and Lx-2 cells increased the secretion of several cytokines. In an ectopic xenograft model, Lx-2 co-implantation increased CC tumor growth and stimulated angiogenesis. Cyclopamine attenuated tumor growth in the CX group, but not in the HuCCT-1 mono-implant (SX) group. Cyclopamine treatment decreased CC cell proliferation, suppressed microvessel density, and increased tumor necrosis in the CX group, but not in the SX group. CONCLUSION Hepatic stellate cells stimulate the proliferation, migration, and invasion of CC cells, promote angiogenesis through HH signaling activation, and render CC more susceptible to necrosis by HH inhibitor.
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Affiliation(s)
- Younjoo Kim
- Division of Gastroenterology, Department of Internal Medicine, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea,
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Park JK, Paik WH, Ryu JK, Kim YT, Kim YJ, Kim J, Song BJ, Park JM, Yoon YB. Clinical significance and revisiting the meaning of CA 19-9 blood level before and after the treatment of pancreatic ductal adenocarcinoma: analysis of 1,446 patients from the pancreatic cancer cohort in a single institution. PLoS One 2013; 8:e78977. [PMID: 24250822 PMCID: PMC3826753 DOI: 10.1371/journal.pone.0078977] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Accepted: 09/25/2013] [Indexed: 12/18/2022] Open
Abstract
Background Life expectancy of pancreatic ductal adenocarcinoma (PDAC) patients is usually short and selection of the most appropriate treatment is crucial. The aim of this study was to investigate the usefulness of serum CA 19-9 as a surrogate marker under no impress excluding other factors affecting CA 19-9 level other than tumor itself. Methods We recruited 1,446 patients with PDACs and patients with Lewis antigen both negative or obstructive jaundice were excluded to eliminate the false effects on CA 19-9 level. The clinicopathologic factors were reviewed including initial and post-treatment CA 19-9, and statistical analysis was done to evaluate the association of clinicopathologic factors with overall survival (OS). Results The total of 944 patients was enrolled, and205 patients (22%) underwent operation with curative intention and 541 patients (57%) received chemotherapy and/or radiotherapy. The median CA 19-9 levels of initial and post-treatment were 670 IU/ml and 147 IU/ml respectively. The prognostic factors affecting OS were performance status, AJCC stage and post-treatment CA 19-9 level in multivariate analysis. Subgroup analysis was done for the patients who underwent R0 and R1 resection, and patients with normalized post-operative CA 19-9 (≤37 IU/mL) had significantly longer OS and DFS regardless of initial CA 19-9 level; 32 vs. 18 months, P<0.001, 16 vs. 9 months, P = 0.004 respectively. Conclusions Post-treatment CA 19-9 and normalized post-operative CA 19-9 (R0 and R1 resected tumors) were independent factors associated with OS and DFS, however, initial CA 19-9 level was not statistically significant in multivariate analysis.
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Affiliation(s)
- Joo Kyung Park
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Woo Hyun Paik
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Kon Ryu
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
- * E-mail: (JKR); (YTK)
| | - Yong-Tae Kim
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
- * E-mail: (JKR); (YTK)
| | - Youn Joo Kim
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jaihwan Kim
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Byeong Jun Song
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Myung Park
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Bum Yoon
- Departments of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Lee YS, Jang SE, Lee BS, Lee SJ, Lee MG, Park JK, Lee SH, Ryu JK, Kim YT, Yoon YB, Hwang JH. Presence of coronary artery disease increases the risk of biliary events in patients with asymptomatic gallstones. J Gastroenterol Hepatol 2013; 28:1578-83. [PMID: 23701468 DOI: 10.1111/jgh.12275] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/20/2013] [Indexed: 01/05/2023]
Abstract
BACKGROUND AND AIM Propensity score indicates a probability of having a confounding factor. It is used to match each patient with the closest propensity score between two groups, which is known as propensity score matching. This study aimed to evaluate the gallstone-related biliary events, defined as biliary colic and acute cholecystitis between coronary artery disease (CAD) and non-CAD patients using propensity score matching. METHODS This retrospective cohort study evaluated 267 asymptomatic gallstone patients with CAD and 459 asymptomatic gallstone patients without CAD from March 2003 to December 2009 at two tertiary teaching hospitals in the Republic of Korea. After propensity score matching, total 378 patients, including 126 in study group (with CAD) and 252 in control group (without CAD), were evaluated. RESULTS During a median follow-up of 47 months, overall gallstone-related biliary event rate was 33.5% in the study group and 27.5% in the control group. The 5-year cumulative rates were 25.3% versus 17.7% in gallstone-related biliary event and 10.9% versus 1.6% in acute cholecystitis (study versus control group). After propensity score adjustment, the risk of gallstone-related biliary events in the CAD patients significantly increased (hazard ratio 2.11, 95% confidence interval 1.14-3.90, P = 0.017 in matched patients). CONCLUSION In patients with asymptomatic gallstones, the coexistence of CAD can increase the risk of gallstone-related biliary events, particularly acute cholecystitis. Therefore, gallstone patients with CAD should be carefully monitored, even if they are asymptomatic.
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Affiliation(s)
- Yoon Suk Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoungnam-si, Gyeonggi-do, Republic of Korea
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Choi J, Ryu JK, Lee SH, Hwang JH, Ahn DW, Kim YT, Yoon YB, Yoon CJ, Kang SG, Chung JW. Palliative treatment of unresectable hepatocellular carcinoma with obstructive jaundice using biliary drainage with subsequent transarterial chemoembolization. J Palliat Med 2013; 16:1026-33. [PMID: 23888306 DOI: 10.1089/jpm.2013.0067] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Nonsurgical biliary drainage is considered as a priority for obstructive jaundice associated with unresectable hepatocellular carcinoma (HCC). Successful drainage allows the patient to receive antitumor therapy, such as transarterial chemoembolization (TACE). However, only limited data are available on clinical outcomes in patients who treated biliary drainage with subsequent TACE. OBJECTIVE This study evaluated the clinical outcome of biliary drainage with subsequent TACE in unresectable HCC patients with obstructive jaundice. DESIGN This was a retrospective study. SETTING/SUBJECTS A total of 60 patients received endoscopic biliary drainage (ERBD) or percutaneous transhepatic biliary drainage (PTBD) in two tertiary care referral centers. MEASUREMENTS Successful drainage and survival were measured. RESULTS Successful drainage was achieved in 39 (65%) patients. The median survival of 39 patients in whom successful drainage was achieved, regardless of which procedure was performed, was much longer than that of 21 patients without successful drainage (147 days versus 38 days, respectively, P<.001). In particular, the median survival was longer in 17 patients who underwent TACE after achieving successful drainage than in 22 patients who were treated conservatively after achieving successful drainage (410 days versus 77 days, respectively, P<.001). Multivariable analysis in 39 patients in the successful drainage group showed that TACE (hazard ratio 0.15; 95% confidence interval 0.05-0.45, P=.001) was an independent predictive factor of a favorable outcome. CONCLUSIONS Effective palliation by successful biliary drainage with subsequent TACE might prolong the survival in patients with obstructive jaundice caused by unresectable HCC.
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Affiliation(s)
- Jongkyoung Choi
- 1 Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul National University Hospital , Seoul, Republic of Korea
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Woo SM, Lee SH, Yoo JW, Yang KY, Seo JG, Park JK, Hwang JH, Lee WJ, Ryu JK, Kim YT, Yoon YB. A Multicenter Phase II Trial of Gemcitabine Plus Oxaliplatin in Unresectable Gallbladder Cancer. Gut Liver 2013; 7:594-8. [PMID: 24073318 PMCID: PMC3782675 DOI: 10.5009/gnl.2013.7.5.594] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 09/28/2012] [Accepted: 10/20/2012] [Indexed: 01/07/2023] Open
Abstract
Background/Aims No standard chemotherapy has been established for advanced gallbladder cancer. The authors studied the activity and tolerability of a gemcitabine and oxaliplatin (GEMOX) combination in unresectable gallbladder cancer (GBC). Methods Adult patients with pathologically confirmed unresectable GBC were prospectively recruited at three centers. No patient had received prior chemotherapy or radiotherapy. Patients received cycles of gemcitabine at 1,000 mg/m2 on day 1, followed by oxaliplatin at 100 mg/m2 on day 2, every 2 weeks. The primary study endpoint was time to progression. Results Forty patients with unresectable GBC were enrolled. The median age was 60 years (range, 38 to 79 years). All patients showed good performance status. Of the 33 analyzable patients, 12 achieved partial response (36%), 17 stable disease (52%), and four progressive disease (12%). No patient achieved a complete response. The tumor control rate was 88%. At a median follow-up of 6.8 months, the median time to progression was 5.3 months (95% confidence interval [CI], 3.7 to 6.9), and median overall survival was 6.8 months (95% CI, 6.1 to 7.5). Nine of the 40 patients (23%) experienced at least a grade-3 adverse event, but no patient experienced a grade-4 adverse event. Conclusions GEMOX combination therapy is a feasible option and is well tolerated in unresectable GBC.
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Affiliation(s)
- Sang Myung Woo
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea. ; Center for Liver Cancer, National Cancer Center, Goyang, Korea
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Son JH, Kim J, Lee SH, Hwang JH, Ryu JK, Kim YT, Yoon YB, Jang JY, Kim SW, Cho JY, Yoon YS, Han HS, Woo SM, Lee WJ, Park SJ. The optimal duration of preoperative biliary drainage for periampullary tumors that cause severe obstructive jaundice. Am J Surg 2013; 206:40-6. [PMID: 23706545 DOI: 10.1016/j.amjsurg.2012.07.047] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 07/13/2012] [Accepted: 07/24/2012] [Indexed: 12/13/2022]
Abstract
BACKGROUND Despite routine preoperative biliary drainage (PBD) with periampullary cancer, its optimal duration has not been established. The objective of this study was to investigate PBD in severely jaundiced patients. METHODS A total of 120 patients with periampullary tumors who underwent surgery with intent to cure after PBD for severe obstructive jaundice were enrolled. According to the duration of PBD, 66 and 54 patients were classified into the long-term (≥2 weeks) and short-term (<2 weeks) groups. RESULTS PBD-related complications occurred in 6 (9.1%) and 14 (25.9%) patients in the short-term and long-term groups, respectively (P = .014). Rates of surgery-related complications and mortalities were not significantly different between the 2 groups. The R0 resection rate tended to be lower (P = .054) and the mean length of hospital stay was significantly longer (P = .039) in the long-term group. CONCLUSIONS PBD duration <2 weeks is more appropriate in severely jaundiced patients with periampullary cancer.
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Affiliation(s)
- Jun Hyuk Son
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Lim JH, Ryu JK, Choi YJ, Kwon J, Kim JY, Lee YB, Kim JH, Yoon WJ, Kim YT, Yoon YB. A Case of Common Bile Duct Cancer That Completely Responded to Combination Chemotherapy of Gemcitabine and TS-1. Gut Liver 2013; 7:371-6. [PMID: 23710321 PMCID: PMC3661972 DOI: 10.5009/gnl.2013.7.3.371] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 09/04/2011] [Accepted: 09/07/2011] [Indexed: 12/17/2022] Open
Abstract
Common bile duct (CBD) cancer is a relatively rare malignancy that arises from the biliary epithelium and is associated with a poor prognosis. Here, we report a case of advanced metastatic CBD cancer successfully treated by chemotherapy with gemcitabine combined with S-1 (tegafur+gimeracil+oteracil). A 65-year-old male presented with pyogenic liver abscess. After antibiotic therapy and percutaneous drainage, follow-up computed tomography (CT) showed an enhanced nodule in the CBD. Biopsy was performed at the CBD via endoscopic retrograde cholangiopancreatography, which showed adenocarcinoma. Additional CT and magnetic resonance imaging showed multiple small nodules in the right hepatic lobe, which were confirmed as metastatic adenocarcinoma by sono-guided liver biopsy. The patient underwent combination chemotherapy with gemcitabine and S-1. After nine courses of chemotherapy, the hepatic lesion disappeared radiologically. Pylorus-preserving pancreaticoduodenectomy was performed, and no residual tumor was found in the resected specimen. Three weeks after the operation, the patient was discharged with no complications. Through 3 months of follow-up, no sign of recurrence was observed on CT scan. Gemcitabine combined with S-1 may be a highly effective treatment for advanced cholangiocarcinoma.
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Affiliation(s)
- Joo Hyun Lim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Paik WH, Ryu JK, Song BJ, Kim J, Park JK, Kim YT, Yoon YB. Clinical usefulness of plasma chromogranin a in pancreatic neuroendocrine neoplasm. J Korean Med Sci 2013; 28:750-4. [PMID: 23678268 PMCID: PMC3653089 DOI: 10.3346/jkms.2013.28.5.750] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Accepted: 02/27/2013] [Indexed: 12/13/2022] Open
Abstract
Chromogranin A (CgA) is widely used as an immunohistochemical marker of neuroendocrine neoplasms and has been measurable in plasma of patients. We assessed the clinical role of plasma CgA in diagnosing pancreatic neuroendocrine neoplasm (PNEN). CgA was checked in 44 patients with pancreatic mass who underwent surgical resection from 2009 through 2011. The cutoff value for diagnosing PNEN and the relationships between CgA and clinicopathologic variables were analyzed. Twenty-six patients were PNENs and 18 patients were other pancreatic disorders. ROC analysis showed a cutoff of 60.7 ng/mL with 77% sensitivity and 56% specificity, and the area under the curve (AUC) was 0.679. Among PNEN group, the sensitivity and specificity of diagnosing metastasis were 100% and 90% respectively when CgA cutoff was 156.5 ng/mL. The AUC was 0.958. High Ki-67 index (160.8 vs 62.1 ng/mL, P = 0.001) and mitotic count (173.5 vs 74.6 ng/mL, P = 0.044) were significantly correlated with plasma CgA, but the tumor size was not. In conclusion, CgA has a little value in diagnosing PNEN. However, the high level of CgA (more than 156.5 ng/mL) can predict the metastasis. Also, plasma CgA level correlates with Ki-67 index and mitotic count which represents prognosis of PNENs.
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Affiliation(s)
- Woo Hyun Paik
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Kon Ryu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Byeong Jun Song
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jaihwan Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Joo Kyung Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Yong-Tae Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Bum Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Ahn DW, Ryu JK, Kim J, Yoon WJ, Lee SH, Kim YT, Yoon YB. Endoscopic papillectomy for benign ampullary neoplasms: how can treatment outcome be predicted? Gut Liver 2013; 7:239-45. [PMID: 23560162 PMCID: PMC3607780 DOI: 10.5009/gnl.2013.7.2.239] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Revised: 04/30/2012] [Accepted: 07/08/2012] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND/AIMS Endoscopic papillectomy is increasingly performed with curative intent for benign papillary tumors. This study was performed to identify factors that predict the presence of malignancy and affect endoscopic success. METHODS We retrospectively analyzed the medical records of patients who received an endoscopic papillectomy for papillary adenoma from 2006 to 2009. RESULTS A total of 43 patients received endoscopic papillectomy. The pathologic results after papillectomy revealed adenocarcinoma in five patients (12%), and the risk of malignancy was high in cases of large lesions, preprocedural pathology of high-grade dysplasia or high serum alkaline phosphatase. Endoscopic success was observed in 37 patients (86%) at the end of follow-up (mean duration, 10.4±9.6 months). The factor significantly affecting success was a complete resection at the initial papillectomy (p=0.007). Two patients experienced recurrence 10 and 32 months after the complete resection, but both achieved endoscopic success with repeated endoscopic treatment. Six patients with endoscopic failure received surgical resection. CONCLUSIONS Endoscopic papillectomy is a safe and effective method for the curative resection of benign papillary tumors, especially when complete resection is achieved at the initial papillectomy. Follow-up with surveillance should be performed for at least 3 years because of the possible recurrence of tumors during these periods.
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Affiliation(s)
- Dong-Won Ahn
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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13
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Paik WH, Lee SH, Ryu JK, Song BJ, Kim J, Kim YT, Yoon YB. Long-term clinical outcomes of biliary cast syndrome in liver transplant recipients. Liver Transpl 2013; 19:275-82. [PMID: 23213039 DOI: 10.1002/lt.23589] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Accepted: 11/29/2012] [Indexed: 02/07/2023]
Abstract
Biliary cast syndrome (BCS) is an uncommon complication of orthotopic liver transplantation (OLT), so the long-term treatment outcomes of BCS are not well characterized. The purpose of this study was to evaluate the long-term treatment outcomes and prognosis of BCS after OLT. The medical records of 1097 patients who underwent OLT from January 2000 to September 2009 were reviewed. Those patients who had BCS were evaluated with respect to the treatment method, overall survival and relapse rates, and relapse-free time. Twenty-three patients (2.1%) were diagnosed with BCS with a mean overall follow-up of 59.9 months. All the patients had benign biliary strictures and repeatedly underwent balloon dilatation by an endoscopic or percutaneous approach. Primary biliary cast removal was tried with the endoscopic method from 11 patients and with the percutaneous methods from 12 patients. Casts were completely removed by repetitive procedures in 22 patients, but BCS relapsed in 12 patients (55%). Persistent biliary strictures were significantly associated with the BCS relapse frequency (0.37 versus 0.05 times per year, P = 0.006). The 5-year overall survival rate for BCS patients after OLT was 87%. The risk factors associated with early relapse were female sex, hepatic artery stenosis, and acute cellular rejection. In a multivariate analysis, acute cellular rejection was the only significant risk factor for early relapse (hazard ratio = 11.1, 95% confidence interval = 1.9-63.2, P = 0.007). In conclusion, patients with BCS frequently relapse, and multiple interventions and the treatment of biliary strictures are needed. Acute cellular rejection after OLT is a significant risk factor for early relapse.
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Affiliation(s)
- Woo Hyun Paik
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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14
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Eum YO, Kim YT, Lee SH, Park SW, Hwang JH, Yoon WJ, Ryu JK, Yoon YB, Han JK, Yoon CJ, Cho JH, Choi Y. Stent patency using competing risk model in unresectable pancreatic cancers inserted with biliary self-expandable metallic stent. Dig Endosc 2013; 25:67-75. [PMID: 23286259 DOI: 10.1111/j.1443-1661.2012.01335.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 04/13/2012] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIM Biliary self-expandable metallic stents (SEMS) play an important role in the quality of life and palliative treatment in unresectable pancreatic cancer patients. We aimed to determine the factors affecting the patency of biliary SEMS and the survival in unresectable pancreatic cancer with obstructive jaundice. METHODS Considering the competing risk and survival, we retrospectively evaluated the patency in 107 unresectable pancreatic cancer patients with obstructive jaundice who were successfully treated with biliary SEMS from January 2000 to April 2010. RESULTS There were 107 incidents of biliary drainage that were clinically successful and the overall survival period was a median of 133 days. Stent occlusion before death was observed in 36 (33.6%) of 107 patients. Cumulative stent obstruction rates were 4.7%, 16.8%, and 24.4% at 1, 3, and 6 months, respectively. Lower cancer stage (<5 month's hazard ratio [HR] = 2.327, >5 month's HR = 0.108) was only associated with the longer patency of the stents in a multivariable analysis using a Fine and Gray model that considered competing risk. In multivariable analysis, lower cancer stage, uncovered stent and normalized serum bilirubin level were associated with a longer survival period (HR = 2.335, 1.906 and 1.795 respectively, P < 0.05). CONCLUSION The patency of biliary SEMS in unresectable pancreatic cancers might be affected by the stage. Lower cancer stage and normalized bilirubin are associated with longer survival.
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Affiliation(s)
- Young Ook Eum
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
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15
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Choi J, Ryu JK, Lee SH, Ahn DW, Hwang JH, Kim YT, Yoon YB, Han JK. Biliary drainage for obstructive jaundice caused by unresectable hepatocellular carcinoma: the endoscopic versus percutaneous approach. Hepatobiliary Pancreat Dis Int 2012; 11:636-42. [PMID: 23232636 DOI: 10.1016/s1499-3872(12)60237-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND For palliative treatment of the obstructive jaundice associated with unresectable hepatocellular carcinoma (HCC), percutaneous transhepatic biliary drainage (PTBD) or endoscopic retrograde biliary drainage (ERBD) has been performed. PTBD is preferred as an initial procedure. Little is known about the better option for patients with obstructive jaundice caused by unresectable HCC. METHODS Sixty patients who had received ERBD or PTBD for the palliative treatment of obstructive jaundice caused by unresectable HCC between January 2006 and May 2010 were included in this retrospective study. Successful drainage, drainage patency, and the overall survival of patients were evaluated. RESULTS Univariate analysis revealed that the overall frequency of successful drainage was higher in the ERBD group (22/29, 75.9%) than in the PTBD group (15/31, 48.4%) (P=0.029); but multivariate analysis showed marginal significance (P=0.057). The duration of drainage patency was longer in the ERBD group than in the PTBD group (82 vs 37 days, respectively, P=0.020). Regardless of what procedure was performed, the median survival time of patients who had a successful drainage was much longer than that of the patients who did not have a successful drainage (143 vs 38 days, respectively, P<0.001). CONCLUSION Besides PTBD, ERBD may be used as the initial treatment option to improve obstructive jaundice in patients with unresectable HCC if there is a longer duration of drainage patency after a successful drainage.
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Affiliation(s)
- Jongkyoung Choi
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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16
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Chung KH, Ryu JK, Oh HS, Seo JY, Jin E, Lee DH, Kim YT, Yoon YB. Pancreatic pseudocyst after endoscopic ultrasound-guided fine needle aspiration of pancreatic mass. Clin Endosc 2012; 45:431-4. [PMID: 23251895 PMCID: PMC3521949 DOI: 10.5946/ce.2012.45.4.431] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 05/04/2012] [Accepted: 07/04/2012] [Indexed: 12/16/2022] Open
Abstract
Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is well known as a safe diagnostic procedure. We report the first case of pancreatic pseudocyst after EUS-FNA of the pancreatic body mass. A 60-year-old male underwent EUS-FNA for incidentally detected pancreatic solid mass which was suspected as neuroendocrine tumor. Two weeks later, the patient visited emergency room with acute abdominal pain and right upper quadrant tenderness; leukocytosis and elevated C-reactive protein, amylase, and lipase levels were noted. Computed tomography discovered newly developed 11.5×9.5 cm sized cystic mass communicating with the main pancreatic duct. Cyst fluid analysis revealed amylase level of 3,423 U/L and fluid culture isolated Streptococcus parasanguinis. The cystic mass corresponds with pancreatic pseudocyst. FNA induced main pancreatic duct injury and fluid leakage may cause it. Endoscopists who perform EUS-FNA must remember that pancreatic main duct injury can occur as one of severe complications and that it could be treated successfully with endoscopic internal drainage.
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Affiliation(s)
- Kwang Hyun Chung
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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17
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Kwak MS, Jang ES, Ryu JK, Kim YT, Yoon YB, Park JK. Risk factors of post endoscopic retrograde cholangiopancreatography bacteremia. Gut Liver 2012; 7:228-33. [PMID: 23560160 PMCID: PMC3607778 DOI: 10.5009/gnl.2013.7.2.228] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Revised: 04/16/2012] [Accepted: 04/17/2012] [Indexed: 01/14/2023] Open
Abstract
Background/Aims Bacteremia following endoscopic retrograde cholangiopancreatography (ERCP) is a severe complication, but the risk factors for this condition have not yet been clearly determined. Thus, the aim of this study was to investigate the risk factors of post-ERCP bacteremia. Methods Among patients who underwent ERCP from June 2006 to May 2009, we selected patients without any signs of infection prior to the ERCP procedures. Of these patients, we further selected those who experienced bacteremia after ERCP as well as two-fold age and sex-matched controls who did not experience bacteremia after ERCP procedures. We compared clinical, laboratory and technical aspects between these two groups. Results There were 70 patients (3.1%) who developed bacteremia after ERCP. In the multivariate analysis, a history of previous liver transplantation, an elevated serum alkaline phosphatase level and an endoscopic retrograde biliary drainage procedure were independent risk factors of post-ERCP bacteremia (p=0.006, p=0.001, and p=0.004, respectively). The microbiologic analysis revealed the presence of gram-negative organisms in 80% of the cases, and 11 patients had infections with bacteria expressing extended spectrum β-lactamases. Pseudomonas infection was significantly more common in patients who received liver transplantation as compared to patients without transplantation (p=0.014). Conclusions A history of liver transplantation, elevated serum alkaline phosphatase levels and endoscopic retrograde biliary drainage procedure were independent risk factors of post-ERCP bacteremia and require additional attention in future studies.
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Affiliation(s)
- Min-Sun Kwak
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea. ; Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul National University College of Medicine, Seoul, Korea
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18
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Cho Y, Lee DH, Oh HS, Seo JY, Lee DH, Kim N, Jeong SH, Kim JW, Hwang JH, Park YS, Lee SH, Shin CM, Jo HJ, Jung HC, Yoon YB, Song IS. Higher prevalence of obesity in gastric cardia adenocarcinoma compared to gastric non-cardia adenocarcinoma. Dig Dis Sci 2012; 57:2687-92. [PMID: 22484493 DOI: 10.1007/s10620-012-2095-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Accepted: 02/10/2012] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS Obesity is one of the main risk factors for gastric cardia adenocarcinoma (GCA) in the West. Also, recent studies have suggested that GCA is distinct from distal stomach tumor, with differing risk factors, tumor characteristics, and biological behavior. The objective of our research was to evaluate the relationship between obesity and GCA compared to non-cardia adenocarcinoma. MATERIALS AND METHODS A total of 298 patients who were diagnosed with gastric adenocarcinoma and underwent surgery at Seoul National University Bundang Hospital were evaluated. Ninety-one cases were GCA, and 207 cases were non-cardiac adenocarcinoma. Obesity was estimated by body mass index (BMI, kg/m(2)). The degree of obesity was determined by using BMI <18.5, 18.5-23.9, 24-27.9, and ≥ 28 (kg/m(2)) as the cut-off points for underweight, normal weight, overweight, and obese, respectively. Association with obesity was estimated by odds ratio (OR) and 95% confidence interval (CI). RESULTS Obesity was more prevalent in patients with GCA at the time of diagnosis for gastric cancer. Among obese persons with a BMI of 28 kg/m(2) or higher, the OR was 3.937 (95% CI, 1.492-10.389; p = 0.006) for GCA compared to non-cardia adenocarcinoma. For overweight individuals, the OR was 2.194 (95% CI, 1.118-4.305; p = 0.022). Multivariate analysis of age, Helicobacter pylori infection, smoking, stage, and BMI with logistic regression was performed. BMI was an independent risk factor for GCA (OR, 1.123; 95% CI, 1.037-1.217; p = 0.004). CONCLUSION Obesity was more prevalent in patients with GCA compared to that in patients with gastric non-cardia adenocarcinoma. Also, BMI was an independent risk factor for GCA.
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Affiliation(s)
- Yuri Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
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19
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Kwon W, Jang JY, Ryu JK, Kim YT, Yoon YB, Kang MJ, Kim SW. Proposal of an endoscopic retrograde cholangiopancreatography-related perforation management guideline based on perforation type. J Korean Surg Soc 2012; 83:218-26. [PMID: 23091794 PMCID: PMC3467388 DOI: 10.4174/jkss.2012.83.4.218] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 07/19/2012] [Accepted: 07/30/2012] [Indexed: 12/14/2022]
Abstract
Purpose Consensus for endoscopic retrograde cholangiopancreatography (ERCP) related perforation management is lacking. We aimed to identify candidate patients for conservative management by examining treatment results and to introduce a simple, algorithm-based management guideline. Methods A retrospective review of 53 patients with ERCP-related perforation between 2000 and 2010 was conducted. Data on perforation site (duodenum lateral wall or jejunum, type I; para-Vaterian, type II), management method, complication, mortality, hospital stay, and hospital cost were reviewed. Comparative analysis was done according to the injury types and management methods. Results The outcome was greater
in the conservative group than the operative group with shorter hospital stay (20.6 days vs. 29.8 days, P = 0.092), less cost (10.6 thousand United States Dollars [USD] vs. 19.9 thousand USD, P = 0.095), and lower morbidity rate (22.9% vs. 55.6%, P = 0.017). Eighty-one percent (17/21) of type I injuries were operatively managed and 96.9% (31/32) of type II injuries were conservatively managed. Between the types, type II showed better results over type I with shorter hospital stay (19.3 days vs. 30.6 days, P = 0.010), less cost (9.5 thousand USD vs. 20.1 thousand USD, P = 0.028), and lower complication rate (18.8% vs. 57.1%, P = 0.004). There was no difference in mortality. Conclusion Type II injuries were conservatively manageable and demonstrated better outcomes than type I injuries. The management algorithm suggests conservative management in type II injuries without severe peritonitis or unsolved problem requires immediate surgical correction, including operative management in type I injuries unless endoscopic intervention is possible. Conservative management offers socio-medical benefits. Conservative management is recommended in well-selected patients.
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Affiliation(s)
- Wooil Kwon
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
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20
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Ahn DW, Lee SH, Kim J, Yoon WJ, Hwang JH, Jang JY, Ryu JK, Kim YT, Kim SW, Yoon YB. Long-term outcome of cystic lesions in the pancreas: a retrospective cohort study. Gut Liver 2012; 6:493-500. [PMID: 23170156 PMCID: PMC3493732 DOI: 10.5009/gnl.2012.6.4.493] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Accepted: 01/31/2012] [Indexed: 01/30/2023] Open
Abstract
Background/Aims The management guidelines for cystic lesions of the pancreas (CLPs) are not yet well established. This study was performed to document the long-term clinical outcome of CLPs and provide guidelines for the management and surveillance of CLPs. Methods In this retrospective cohort study, an additional follow-up was performed in 112 patients with CLPs enrolled from 1998 to 2004 during a previous study. Results During follow-up for the median period of 72.3 months, the size of the CLPs increased in 18 patients (16.1%). Six of these patients experienced growth of their CLPs after 5 years of follow-up. Twenty-six patients underwent surgery during follow-up, and four malignant cysts were detected. The overall rate of malignant progression during follow-up was 3.6%. The presence of mural nodules or solid components was independently associated with the presence of malignant CLPs. Seven patients underwent surgery after 5 years of follow-up. The pathologic findings revealed malignancies in two patients. There was only one pancreas-related death during follow-up. Conclusions The majority of CLPs exhibit indolent behavior and are associated with a favorable prognosis. However, long-term surveillance for more than 5 years should be performed because of the potential for growth and malignant transformation in CLPs.
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Affiliation(s)
- Dong-Won Ahn
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea. ; Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
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21
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Park JK, Kim MA, Ryu JK, Yoon YB, Kim SW, Han HS, Kang GH, Kim H, Hwang JH, Kim YT. Postoperative prognostic predictors of pancreatic ductal adenocarcinoma: clinical analysis and immunoprofile on tissue microarrays. Ann Surg Oncol 2012; 19:2664-72. [PMID: 22395988 DOI: 10.1245/s10434-012-2277-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Indexed: 12/25/2022]
Abstract
BACKGROUND Most pancreatic ductal adenocarcinomas (PDACs) metastasize even after curative resection. Our goal was to investigate the important factors affecting metastasis and overall survival (OS). METHODS We studied 88 PDACs with R0 resection and evaluated immunohistochemical markers on tissue microarrays to assess the expression levels of the following: EGFR, amphiregulin, VEGF, p-c-met, MMP2, MMP7, MMP9, CXCR3, and CXCR4. RESULTS The median OS in patients who had positive versus negative expression of AREG and MMP9 were 25 versus 16 months and 24 versus 13 months, respectively (P = 0.03, P = 0.006). However, the median OS in patients with positive versus negative expression of MMP2 was 22 versus 37 months (P = 0.04). Immunoprofiles also revealed that patients with positive expression of p-c-met or VEGF had significantly shorter distant metastasis-free survival. Adjuvant treatment, postoperative decrease of CA 19-9, angiolymphatic invasion, AREG, and MMP2 were independent prognostic factors affecting OS in multivariate analysis. CONCLUSIONS Immunoprofiles revealed the groups with unfavorable tumor biology: negative expression of AREG and positive expression of MMP2. Also, high immunoreactivity of p-c-met or VEGF seemed to be associated with early distant organ metastasis in R0 resected PDACs; however, they still need to be further investigated. These results may give us useful insights in understanding the tumor biology and the patterns of PDAC dissemination.
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Affiliation(s)
- Joo Kyung Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
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22
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Kim J, Ryu JK, Ahn DW, Park JK, Yoon WJ, Kim YT, Yoon YB. Results of repeat endoscopic retrograde cholangiopancreatography after initial biliary cannulation failure following needle-knife sphincterotomy. J Gastroenterol Hepatol 2012; 27:516-20. [PMID: 21913986 DOI: 10.1111/j.1440-1746.2011.06914.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIM After failed biliary cannulation with needle knife sphincterotomy (NKS), endoscopic retrograde cholangiopancreatography (ERCP) is sometimes repeatedly performed in clinically stable patients; however, there are few reports about the results. This study assessed the results of repeated ERCPs after failure with NKS. METHODS After failed NKS, patients who underwent repeated ERCP for the same purpose within 3 days were retrospectively identified. Success was defined as deep placement of a catheter into the common bile duct. RESULTS Sixty-nine patients underwent a second ERCP procedure and, of those, six underwent a third ERCP. Of the 69 patients, cannulation was successful in 76.8% (53/69): 46 of 58 patients without additional NKS and 7 of 11 with additional NKS. Success increased to 79.7% (55/69) after the results of the third ERCP were included. Common causes of failed NKS were biliary deep cannulation failure (78.3%) and blocking of the endoscopic view due to bleeding (13.0%). There was a significant difference in success rates between the one day (65.7%) and the combined 2-3 day (88.2%) cases (P = 0.027). Except for the interval between ERCPs, there were no other factors associated with success rates. Complications occurred in 8, 11, and one patient after initial, second, and third ERCP and there was no difference of complication rates between each ERCPs. CONCLUSIONS In cases with biliary cannulation failure with NKS, it is more worthwhile repeating ERCP 2 or 3 days after such failure than one day after, if the patient's condition permits delay of procedure.
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Affiliation(s)
- Jaihwan Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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23
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Park JK, Lee SH, Ryu JK, Kim YT, Yoon YB, Kim MA. Abstract A112: Postoperative prognostic predictors of pancreatic ductal adenocarcinoma: Clinical analysis and immunoprofile on tissue microarrays. Cancer Prev Res (Phila) 2011. [DOI: 10.1158/1940-6207.prev-11-a112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The most of pancreatic ductal adenocarcinomas metastasize even after curative resection. Our goals were to investigate the important factors affecting metastasis and overall survival. Patients and methods: We studied 88 PDACs with R0 resection and evaluated immunohistochemical markers on tissue microarrays to assess the expression levels of the following: EGFR, amphiregulin, VEGF, p-c-met, MMP2, MMP7, MMP9, CXCR3 and CXCR4.
Results: The median OS in patients who had positive vs. negative expression of AREG and MMP9 were 25 vs. 16mo and 24 vs. 13mo respectively (p=0.03, p=0.006). However, the median OS in patients with positive vs. negative expression of MMP2 was 22 vs. 37mo (p=0.04). Adjuvant treatment, postoperative decrement of CA 19–9, angiolymphatic invasion, AREG and MMP2 were independent prognostic factors affecting OS in multivariate analysis. Immunoprofiles revealed that patients with positive expression of p-c-met or VEGF had significantly shorter distant metastasis free survival.
Conclusions: Immunoprofiles revealed the groups with unfavorable tumor biology: negative expression of AREG and positive expression of MMP2. Also, high immunoreactivity of p-c-met or VEGF can be considered as indicators of early distant organ metastasis. These results may give us useful insights in choosing adjuvant treatment modalities and understanding the patterns of PDAC dissemination.
Citation Information: Cancer Prev Res 2011;4(10 Suppl):A112.
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Affiliation(s)
- Joo Kyung Park
- 1Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea (Rep.)
| | - Se Hoon Lee
- 1Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea (Rep.)
| | - Ji Kon Ryu
- 1Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea (Rep.)
| | - Yong-Tae Kim
- 1Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea (Rep.)
| | - Yong Bum Yoon
- 1Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea (Rep.)
| | - Min A Kim
- 1Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea (Rep.)
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Park SY, Ryu JK, Park JH, Yoon H, Kim JY, Yoon YB, Park JG, Lee SH, Kang SB, Park JW, Oh JH. Prevalence of gastric and duodenal polyps and risk factors for duodenal neoplasm in korean patients with familial adenomatous polyposis. Gut Liver 2011; 5:46-51. [PMID: 21461071 DOI: 10.5009/gnl.2011.5.1.46] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 10/04/2010] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND/AIMS The prevalence of gastric polyps, duodenal adenoma and duodenal cancer has been reported as being high among familial adenomatous polyposis (FAP) patients, but there have been no reports of this association in Korea. This study evaluated the prevalence of gastric and duodenal polyps and risk factors for duodenal neoplasm in FAP patients in Korea. METHODS We reviewed both initial and follow-up endoscopic results from FAP patients. We also investigated the treatment modality of duodenal adenomas and analyzed the risk factors of duodenal neoplasms by logistic regression analysis. RESULTS A total of 148 patients with FAP underwent esophagogastroduodenoscopy (EGD), and the fi ndings were as follows: gastric polyp 39.9% (fundic gland polyp 25.7% and gastric adenoma 14.2%), duodenal adenoma 15.5%, gastric cancer 2.7%, and duodenal cancer 0.7%. There were two cases of gastric cancer that developed from benign gastric polyps. There were progressions of duodenal adenomatosis during follow-up, and some degree of relapse occurred after endoscopic resection. Patients with gastric polyps showed a correlation with the occurrence of duodenal neoplasm (odds ratio, 2.814; p=0.024). CONCLUSIONS In Korean FAP patients, gastric cancer was detected more frequently, but fundic gland polyps, duodenal adenoma and duodenal cancer were detected less frequently than in Western patients. FAP patients with gastric polyps should undergo regular EGD, particularly for the early detection of duodenal neoplasia.
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Affiliation(s)
- So Youn Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Yoon WJ, Ryu JK, Kim YT, Yoon YB, Kim SW, Kim WH. Clinical features of metastatic tumors of the pancreas in Korea: a single-center study. Gut Liver 2011; 5:61-4. [PMID: 21461074 DOI: 10.5009/gnl.2011.5.1.61] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Accepted: 12/01/2010] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND/AIMS The purpose of this study was to examine the clinical features of metastatic tumors of the pancreas (MTPs) in Korea. METHODS A total of 53 cases (31 males) of pathologically proven MTPs were collected. Clinicopathological characteristics and patient outcomes were evaluated. RESULTS The median age at the diagnosis of the MTP was 60 years. The median interval between the diagnoses of primary malignancy and MTP was 2.2 years. Primary malignancies were renal cell carcinoma (RCC) (n=14), gastric cancer (n=11), colorectal cancer (n=5), lymphoma (n=4), non-small cell lung cancer (n=3), gastrointestinal stromal tumor (n=2), melanoma (n=2), small cell lung cancer (n=2), gallbladder cancer (n=2), hepatocellular carcinoma (n=1), thymic carcinoid (n=1), liposarcoma (n=1), cholangiocarcinoma (n=1), osteosarcoma (n=1), breast cancer (n=1), duodenal cancer (n=1), and ovarian cancer (n=1). The median survival after the diagnosis of MTP was 23.1 months. Multivariate analysis showed that prolonged survival was associated with RCC as the primary malignancy, the patient being asymptomatic upon the diagnosis of MTP, the absence of extrapancreatic involvement, and surgery included in the treatment. CONCLUSIONS MTPs can occur after a prolonged period from the primary diagnosis. RCC as the primary malignancy, the patient being asymptomatic upon the diagnosis of MTP, the absence of extrapancreatic involvement, and surgery included in the treatment are associated with better prognosis.
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Affiliation(s)
- Won Jae Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Yoon WJ, Ryu JK, Lee JW, Ahn DW, Kim YT, Yoon YB, Woo SM, Lee WJ. Endoscopic management of occluded metal biliary stents: Metal versus 10F plastic stents. World J Gastroenterol 2010; 16:5347-52. [PMID: 21072899 PMCID: PMC2980685 DOI: 10.3748/wjg.v16.i42.5347] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM: To compare the efficacy of self-expandable metal stents (SEMSs) with 10F plastic stents (PSs) in the endoscopic management of occluded SEMSs.
METHODS: We retrospectively reviewed the medical records of 56 patients who underwent SEMS insertion for palliation of unresectable malignant biliary obstruction between 2000 and 2007 and subsequent endoscopic retrograde biliary drainage (ERBD) with SEMS or PS for initial SEMS occlusion between 2000 and 2008.
RESULTS: Subsequent ERBD with SEMS was performed in 29 patients and with PS in 27. The median time to stent occlusion after subsequent ERBD was 186 d in the SEMS group and 101 d in the PS group (P = 0.118). Overall median stent patency was 79 d for the SEMS group and 66 d for the PS group (P = 0.379). The mean number of additional biliary drainage procedures after subsequent ERBD in patients that died (n = 50) during the study period was 2.54 ± 4.12 for the SEMS group and 1.85 ± 1.95 for the PS group (P = 0.457). The mean total cost of additional biliary drainage procedures after the occlusion of subsequent SEMS or PS was $410.04 ± 692.60 for the SEMS group and $630.16 ± 671.63 for the PS group (P = 0.260). Tumor ingrowth as the cause of initial SEMS occlusion was the only factor associated with a shorter time to subsequent stent occlusion (101 d for patients with tumor ingrowth vs 268 d for patients without tumor ingrowth, P = 0.008).
CONCLUSION: Subsequent ERBD with PSs offered similar patency and number of additional biliary drainage procedures compared to SEMSs in the management of occluded SEMS.
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Abstract
BACKGROUND/AIMS This study evaluated the clinicopathologic characteristics of patients with secondary appendiceal tumors (SATs). METHODS We performed a single-center, retrospective study of patients with pathologically confirmed SATs. RESULTS Among 180 cases of appendiceal malignancies diagnosed between 2000 and 2007, 139 cases (77.2%, 46 male) were SATs. The median age at SAT diagnosis was 55 years. The most common primary origin was the ovary. The mode of appendiceal involvement was metastasis in 122 and invasion in 17 patients. Extra-appendiceal involvement was present in 134 patients. The only manifestation that could be attributed to the SAT itself was appendicitis (n=8). Serosal involvement was predominant. The median survival after diagnosis of SAT was 22.6 months. In the Cox regression analysis, chemotherapy included in the treatment was the only factor associated with prolonged survival (hazards ratio, 0.12; 95% confidence interval, 0.06-0.23; p<0.001). Complete resection of the SAT had no influence on survival. CONCLUSIONS SATs accounted for 77.2% of all pathologically diagnosed appendiceal malignancies. The most common origin was the ovary. SATs were usually associated with widespread disease, and the median survival after SAT diagnosis was 22.6 months. Complete resection of the SAT had no influence on survival.
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Affiliation(s)
- Won Jae Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Abstract
The aim of this study was to report a single center experience of primary pancreatic lymphoma (PPL) in Korea. We analyzed the clinicopathological data from four PPL patients (three male, median age 36 yr) diagnosed from 1997 to 2007 at Seoul National University Hospital. The diagnoses were: diffuse large B cell lymphoma (n=2), Ki-1 (+) anaplastic large cell lymphoma (n=1), and Burkitt lymphoma (n=1). Presenting symptoms and signs were: abdominal pain (n=4), pancreatitis (n=2), weight loss (n=2) and abdominal mass (n=1). No patient underwent surgery. The Ann Arbor stages of the patients were: IEA (n=1), IIEA (n=1), and IVEB (n=2). Two patients underwent treatment. The stage IEA patient underwent chemotherapy and radiation therapy that resulted in a complete remission. The stage IVEB patient who underwent chemotherapy relapsed. This patient underwent subsequent peripheral blood stem cell transplantation and is alive at 30 months. Two patients (stages IVEB and IIEA) without treatment died at 0.8 and 7.0 months, respectively. For PPL patients, chemotherapy-based treatment, and addition of radiation therapy, if possible, may offer good prognosis.
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Affiliation(s)
- Won Jae Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Bum Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Youn Joo Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Kon Ryu
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Yong-Tae Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Abstract
AIM: To evaluate the clinicopathologic characteristics of patients with metastases to the gallbladder (MGBs).
METHODS: We performed a single-center retrospective study of 20 patients with MGBs diagnosed pathologically from 1999 to 2007.
RESULTS: Among 417 gallbladder (GB) malignancies, 20 (4.8%) were MGBs. The primary malignancies originated from the stomach (n = 8), colorectum (n = 3), liver (n = 2), kidney (n = 2), skin (n = 2), extrahepatic bile duct (n = 1), uterine cervix (n = 1), and appendix (n = 1). Twelve patients were diagnosed metachronously, presenting with cholecystitis (n = 4), abdominal pain (n = 2), jaundice (n = 1), weight loss (n = 1), and serum CA 19-9 elevation (n = 1); five patients were asymptomatic. The median survival after the diagnosis of MGB was 8.7 mo. On Cox regression analysis, R0 resection was the only factor associated with a prolonged survival [hazard ratio (HR): 0.01, P = 0.002]; presentation with cholecystitis was associated with poor survival (HR: 463.27, P = 0.006).
CONCLUSION: MGBs accounted for 4.8% of all pathologically diagnosed GB malignancies. The most common origin was the stomach. The median survival of MGB was 8.7 mo.
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Yoon WJ, Ryu JK, Yang KY, Paik WH, Lee JK, Woo SM, Park JK, Kim YT, Yoon YB. A comparison of metal and plastic stents for the relief of jaundice in unresectable malignant biliary obstruction in Korea: an emphasis on cost-effectiveness in a country with a low ERCP cost. Gastrointest Endosc 2009; 70:284-9. [PMID: 19539921 DOI: 10.1016/j.gie.2008.12.241] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2008] [Accepted: 12/23/2008] [Indexed: 12/22/2022]
Abstract
BACKGROUND In countries where ERCP costs are low relative to those of metal stents (eg, Korea), initial endoscopic retrograde biliary drainage (ERBD) with a plastic stent is thought to be more economical. OBJECTIVE We conducted this study to compare metal and plastic stent-based ERBD in efficacy, complications, and total cost of biliary drainage. DESIGN Retrospective study. SETTING Tertiary referral center. PATIENTS A total of 112 patients who had not undergone previous biliary drainage procedures and who underwent ERBD for unresectable malignant biliary obstruction. INTERVENTIONS Endoscopic sphincterotomy was performed, and covered or uncovered Wallstents were used in 56 patients and plastic stents in 56 patients. RESULTS Stent occlusion occurred in 31 patients after a mean of 278 days in the metal stent group and in 39 patients after a mean of 133 days in the plastic stent group (P = .0004). The incidence of and length of hospitalization for cholangitis were significantly lower in the metal stent group. There was no difference in the total number of drainage procedures between the 2 groups. There was no statistical difference in the mean cost of the relief of jaundice between the 2 groups ($1488.77 in the metal stent group vs $1319.26 in the plastic stent group, P = .422). LIMITATIONS Nonrandomized, retrospective study. CONCLUSION Even in countries where ERCP costs are lower than those of metal stents, ERBD with metal biliary stents as the first-line treatment may offer better palliation without a significant increased cost in patients with unresectable malignant biliary obstruction.
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Affiliation(s)
- Won Jae Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
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Seo JK, Ryu JK, Lee SH, Park JK, Yang KY, Kim YT, Yoon YB, Lee HW, Yi NJ, Suh KS. Endoscopic treatment for biliary stricture after adult living donor liver transplantation. Liver Transpl 2009; 15:369-80. [PMID: 19326412 DOI: 10.1002/lt.21700] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Endoscopic intervention is considered to be the primary treatment for biliary stricture after adult living donor liver transplantation (LDLT) with duct-to-duct biliary reconstruction. The aim of this study was to investigate the risk factors of biliary stricture and the clinical outcomes and predictors of failure after endoscopic retrograde cholangiography with balloon dilation (ERC-D). We enrolled 239 adult patients who underwent LDLT between 2000 and 2006. Sixty-eight patients (28.4%) developed biliary stricture. Twenty-nine patients with anastomotic biliary stricture were treated with ERC-D and stenting. We retrospectively analyzed the risk factors of biliary stricture and the clinical outcomes of ERC-D. The median follow-up period was 31 months. The risk factors of biliary stricture on multiple logistic regression analysis were a graft with multiple bile ducts, a previous history of bile leakage, and hepatic artery stenosis. The overall success rate of ERC-D was 64.5%. On simple logistic regression, the failure of primary ERC-D was associated with late biliary stricture over 24 weeks and more than 8 weeks between a 2-fold increase of serum alkaline phosphatase from the stable level and ERC-D, even though these were not statistically significant on multiple logistic regression. The relapse rate of stricture after successful ERC-D was 30%. The duration of stenting in the recurrence group was shorter than that in the nonrecurrence group (11.8 +/- 5.03 versus 29.0 +/- 11.6 weeks, P = 0.004). ERC-D is effective for the management of anastomotic biliary stricture. However, the failure rate of primary ERC-D may be high in patients with late onset and delayed diagnosis of biliary stricture. The recurrence seems to occur frequently in patients with a short duration of stenting.
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Affiliation(s)
- Jeong Kyun Seo
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Woo SM, Ryu JK, Lee SH, Yoon WJ, Kim YT, Yoon YB. Branch duct intraductal papillary mucinous neoplasms in a retrospective series of 190 patients. Br J Surg 2009; 96:405-11. [DOI: 10.1002/bjs.6557] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Abstract
Background
A consensus conference has recommended close observation of branch duct intraductal papillary mucinous neoplasms (BD-IPMNs) smaller than 30 mm, without symptoms or mural nodules. This study investigated whether these recommendations could be validated in a single-centre experience of BD-IPMNs.
Methods
Some 190 patients with radiological imaging or histological findings consistent with BD-IPMN were enrolled between 1998 and 2005. Those with less than 6 months' follow-up and no histological confirmation were excluded.
Results
BD-IPMN was diagnosed by computed tomography and pancreatography in 105 patients and pathologically in 85. Eighteen patients had adenoma, 53 borderline malignancy, five carcinoma in situ and nine invasive carcinoma. Findings associated with malignancy were the presence of radiologically suspicious features (P < 0·001) and a cyst size of at least 30 mm (P = 0·001). Had consensus guidelines been applied, 54 patients would have undergone pancreatic resection, whereas only 28 of these patients actually had a resection; 12 of the latter patients had a malignancy compared with none of the 26 patients who were treated conservatively.
Conclusion
A simple increase in cyst size is not a reliable predictor of malignancy. Observation is recommended for patients with a BD-IPMN smaller than 30 mm showing no suspicious features on imaging.
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Affiliation(s)
- S M Woo
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Yeongeon-dong, Jongno-gu, Seoul, Korea 110-744
| | - J K Ryu
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Yeongeon-dong, Jongno-gu, Seoul, Korea 110-744
| | - S H Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Yeongeon-dong, Jongno-gu, Seoul, Korea 110-744
| | - W J Yoon
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Yeongeon-dong, Jongno-gu, Seoul, Korea 110-744
| | - Y-T Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Yeongeon-dong, Jongno-gu, Seoul, Korea 110-744
| | - Y B Yoon
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Yeongeon-dong, Jongno-gu, Seoul, Korea 110-744
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Kim HG, Han J, Kim MH, Cho KH, Shin IH, Kim GH, Kim JS, Kim JB, Kim TN, Kim TH, Kim TH, Kim JW, Ryu JK, Moon YS, Moon JH, Park SJ, Park CG, Bang SJ, Yang CH, Yoo KS, Yoo BM, Lee KT, Lee DK, Lee BS, Lee SS, Lee SO, Lee WJ, Cho CM, Joo YE, Cheon GJ, Choi YW, Chung JB, Yoon YB. Prevalence of clonorchiasis in patients with gastrointestinal disease: A Korean nationwide multicenter survey. World J Gastroenterol 2009; 15:86-94. [PMID: 19115472 PMCID: PMC2653299 DOI: 10.3748/wjg.15.86] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM: To investigate prevalence of Clonorchis sinensis in patients with gastrointestinal symptoms, and the relation of the infection to hepatobiliary diseases in 26 hospitals in Korea.
METHODS: Consecutive patients who had been admitted to the Division of Gastroenterology with gastrointestinal symptoms were enrolled from March to April 2005. Of those who had been diagnosed with clonorchiasis, epidemiology and correlation between infection and hepatobiliary diseases were surveyed by questionnaire.
RESULTS: Of 3080 patients with gastrointestinal diseases, 396 (12.9%) had clonorchiasis and 1140 patients (37.2%) had a history of eating raw freshwater fish. Of those with a history of raw freshwater fish ingestion, 238 (20.9%) patients had clonorchiasis. Cholangiocarcinoma was more prevalent in C. sinensis-infected patients than non-infected patients [34/396 (8.6%) vs 145/2684 (5.4%), P = 0.015]. Cholangiocarcinoma and clonorchiasis showed statistically significant positive cross-relation (P = 0.008). Choledocholithiasis, cholecystolithiasis, cholangitis, hepatocellular carcinoma, and biliary pancreatitis did not correlate with clonorchiasis.
CONCLUSION: Infection rate of clonorchiasis was still high in patients with gastrointestinal diseases in Korea, and has not decreased very much during the last two decades. Cholangiocarcinoma was related to clonorchiasis, which suggested an etiological role for the parasite.
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Woo SM, Ryu JK, Lee SH, Lee WJ, Hwang JH, Yoo JW, Park JK, Kang GH, Kim YT, Yoon YB. Feasibility of endoscopic papillectomy in early stage ampulla of Vater cancer. J Gastroenterol Hepatol 2009; 24:120-4. [PMID: 19032444 DOI: 10.1111/j.1440-1746.2008.05578.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIM Although endoscopic papillectomy has been attempted in early stage ampullary cancer (pTis, T1), its curative role and indications remain uncertain. The present study was designed to assess the factors that predict malignancy and lymph node metastasis and to suggest potential indications for endoscopic papillectomy by analyzing clinicopathological data. METHODS We performed a retrospective analysis of clinical and histopathological data of 216 patients with ampullary cancer between 1991 and 2006. RESULTS No tumor in pTis stage had metastasized to lymph nodes and only 9% of tumors in pT1 had metastasized. Tumor size (P = 0.018), depth of invasion (P = 0.021) and venous invasion (P = 0.014) were found to be significantly related to lymph node metastasis. Cases with early stage ampullary cancer of less than 2 cm with a well-differentiated histology and no angiolymphatic invasion (n = 13) showed no lymph node metastasis and no recurrence during a median follow up of 35.9 months. CONCLUSION Endoscopic papillectomy can be adopted as a viable alternative to surgery in patients with early stage ampullary cancer of less than 2 cm in size and with a well-differentiated histology. When a resected specimen has a well-differentiated histology, and there is no resection margin involvement and no angiolymphatic invasion, our findings indicate that subsequent radical surgery is unnecessary.
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Affiliation(s)
- Sang Myung Woo
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Paik WH, Park YS, Hwang JH, Lee SH, Yoon CJ, Kang SG, Lee JK, Ryu JK, Kim YT, Yoon YB. Palliative treatment with self-expandable metallic stents in patients with advanced type III or IV hilar cholangiocarcinoma: a percutaneous versus endoscopic approach. Gastrointest Endosc 2009; 69:55-62. [PMID: 18657806 DOI: 10.1016/j.gie.2008.04.005] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2007] [Accepted: 04/12/2008] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND OBJECTIVE Endoscopic or percutaneous biliary drainage with self-expandable metallic stents (SEMS) is widely used for the palliation of cholestasis in patients with advanced hilar cholangiocarcinoma. However, little is known about which is the better option in patients with advanced hilar cholangiocarcinoma. We compared the clinical outcomes of these 2 methods of biliary decompression in these patients. DESIGN AND SETTING Multicenter retrospective study. PATIENTS A total of 85 patients with newly diagnosed advanced hilar cholangiocarcinoma (Bismuth III or Bismuth IV) and who did not receive an operation, chemotherapy, or radiotherapy were retrospectively reviewed. Forty-four of the 85 received endoscopic SEMS and 41 received percutaneous SEMS. INTERVENTIONS Endoscopic SEMS or percutaneous SEMS. MAIN OUTCOME MEASUREMENTS AND RESULTS Baseline characteristics were similar in the 2 groups, but the rate of successful biliary decompression was significantly higher in the percutaneous SEMS group than in the endoscopic SEMS group (92.7% vs 77.3%, respectively, P= .049). Overall rates of procedure-related complications were similar for the 2 groups, but 1 death (from biliary sepsis) occurred in the endoscopic SEMS group. Median survival of patients in whom biliary drainage was successful initially, regardless of which procedure was performed, was much longer than that of patients who had failed biliary drainage (8.7 months vs 1.8 months, respectively, P< .001). Once successful biliary decompression had been achieved, median survival and stent patency duration were similar in the 2 study groups. LIMITATION Retrospective study. CONCLUSIONS Percutaneous SEMS may be chosen for initial biliary drainage in patients with advanced type III or IV hilar cholangiocarcinoma, given higher initial success rate and low level of procedure-related cholangitis.
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Affiliation(s)
- Woo Hyun Paik
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Hwang JH, Lee SH, Lee KH, Lee KY, Kim H, Ryu JK, Yoon YB, Kim YT. Cathepsin B is a target of Hedgehog signaling in pancreatic cancer. Cancer Lett 2008; 273:266-72. [PMID: 19004543 DOI: 10.1016/j.canlet.2008.08.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2008] [Revised: 05/12/2008] [Accepted: 08/08/2008] [Indexed: 11/28/2022]
Abstract
This study investigated the influence of cathepsin B (CATB), a downstream target of Hedgehog (Hh) signaling, in pancreatic cancer. Cyclopamine (Hh signal inhibitor) suppressed expression of Shh, as well as Hh-induced transcription factor Gli1, and induced apoptosis in Shh-positive pancreatic cancer cell line (PANC-1). Microarray analysis revealed CATB as a gene downregulated by Hh. Cyclopamine reduced CATB protein and mRNA levels. Cyclopamine or CATB inhibitor reduced PANC-1 cell invasiveness (P<0.05). CATB expression in human pancreatic cancer tissues tended to correlate with Shh expression (P=0.053). Conclusively, Hh targets CATB and Hh signaling through CATB might influence pancreatic cancer cell invasiveness.
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Affiliation(s)
- Jin-Hyeok Hwang
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 28 Yungon-dong Chongno-gu, Seoul 110-744, Republic of Korea
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Lee JK, Ryu JK, Park JK, Yoon WJ, Lee SH, Hwang JH, Kim YT, Yoon YB. Roles of endoscopic sphincterotomy and cholecystectomy in acute biliary pancreatitis. Hepatogastroenterology 2008; 55:1981-1985. [PMID: 19260463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND/AIMS We evaluated the natural course of biliary pancreatitis and compared the results obtained using endoscopic sphincterotomy (EST) and cholecystectomy. METHODOLOGY The medical records of 113 patients with biliary pancreatitis between January 1990 and April 2005 were analyzed retrospectively. RESULTS Twenty-five patients received no treatment and 15 (60.0%) of these experienced recurrence during a mean follow-up period of 36.0 months. Fifty-two received EST only, and no recurrence occurred during a mean follow-up of 29.8 months. Thirty-six patients underwent cholecystectomy and 1 (2.8%) patient experienced the second attack during a follow-up of 35.2 months. Acute cholecystitis developed in 7 of 77 (9.1%) patients who did not receive cholecystectomy during a mean follow-up period of 33.3 months, and was found to be prone to develop in patients with both gall bladder (GB) and common bile duct (CBD) stones. CONCLUSIONS Sixty percent of patients with biliary pancreatitis experienced relapses without treatment, and cholecystectomy with or without EST tended to reduce recurrence. Cholecystectomy might not be a routine treatment after EST especially in the old because the incidence of acute cholecystitis was relatively low within 3 years and be recommended for patients with both visible GB and CBD stones at presentation.
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Affiliation(s)
- Jun Kyu Lee
- Department of Internal Medicine, Dongguk University International Hospital, Dongguk University College of Medicine, Goyang, Korea
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Park JK, Yoon YB, Kim YT, Ryu JK, Yoon WJ, Lee SH, Yu SJ, Kang HY, Lee JY, Park MJ. Management strategies for gallbladder polyps: is it possible to predict malignant gallbladder polyps? Gut Liver 2008; 2:88-94. [PMID: 20485616 DOI: 10.5009/gnl.2008.2.2.88] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2008] [Accepted: 05/17/2008] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND/AIMS Gallbladder (GB) polyps are commonly encountered in clinical practice, and are found more frequently as the number of medical screening examinations increases. The aim of this study was to determine optimal practice guideline for surgical treatment and follow-up of GB polyps. METHODS Data from healthy subjects of Seoul National University Hospital (SNUH) Health Care System of Gangnam Center were used to investigate the true prevalence of GB polyps. We also enrolled 689 patients with GB polyps diagnosed at SNUH from May 1(st), 1988 to April 30(th), 2006. RESULTS The GB polyp prevalence was 6.1% (7.1% in males and 4.8% in females). The median follow-up duration in the 689 study patients was 60 months, and 139 (20%) of them had polyps >/=10 mm in size. Twenty-five of the 180 patients who underwent cholecystectomy had adenocarcinomas. The chi(2) test was used to identify which of the following were risk factors of malignancy: age, sex, symptoms, size, rate of growth, multiplicity, accompanying stones, and shape. Age (>/=57 years), presence of symptoms, size (>/=10 mm), and shape (sessile) were found to be statistically significant risk factors by univariate analysis. However, multivariate analysis identified only age (>/=57 years) and size (>/=10 mm) as independent predictors of malignancy. CONCLUSIONS The present study shows that GB polyps >/=10 mm in size in patients aged >/=57 years are the independent factors predicting malignancy of the GB.
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Affiliation(s)
- Joo Kyung Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
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Yoon WJ, Ryu JK, Lee JK, Woo SM, Lee SH, Park JK, Kim YT, Yoon YB. Extrapancreatic malignancies in patients with intraductal papillary mucinous neoplasm of the pancreas: prevalence, associated factors, and comparison with patients with other pancreatic cystic neoplasms. Ann Surg Oncol 2008; 15:3193-8. [PMID: 18784959 DOI: 10.1245/s10434-008-0143-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 08/11/2008] [Accepted: 08/12/2008] [Indexed: 12/27/2022]
Abstract
BACKGROUND Intraductal papillary mucinous neoplasm (IPMN) of the pancreas is reported to have a high prevalence of extrapancreatic malignancy (EPM). The aims of this study were to evaluate the prevalence and associated factors of EPMs in IPMN patients and to compare these data with those of non-IPMN pancreatic cystic neoplasm (PCN) patients. METHODS The study included 385 PCN patients (210 IPMNs and 175 non-IPMNs) diagnosed from 1993 to 2007. PCN types, presence of EPMs, chronological relation of EPMs to PCN diagnosis, and their clinicopathological parameters were analyzed. RESULTS The prevalence of EPM was 33.8% for IPMNs and 12.0% for non-IPMN PCNs (P < 0.001). In the majority of patients with EPMs, PCNs were detected while undergoing workup for the EPMs. For IPMNs, age was associated with EPMs [odds ratio (OR) 1.05, P = 0.013]; malignant IPMN showed a borderline inverse association with EPMs (OR 0.50, P = 0.071). Multivariate analysis of entire PCN cohort demonstrated that age at PCN diagnosis (OR 1.05, P < 0.001) was positively associated with EPM; IPMN showed a borderline positive association with EPM (OR 1.88, P = 0.052). Malignant PCN (OR 0.40, P = 0.009) was inversely associated with EPM. CONCLUSION The EPM prevalence of IPMN patients was 33.8%. Advanced age at IPMN diagnosis was the only factor significantly associated with EPMs in our IPMN cohort. In our PCN cohort, advanced age at PCN diagnosis was associated with malignant PCN and IPMN showed a borderline positive association with EPM.
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Affiliation(s)
- Won Jae Yoon
- Division of Gastroenterology, Department of Internal Medicine, Seoul National University College of Medicine, 28 Yeongon-dong, Jongno-gu, Seoul 110-744, Korea
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Paik WH, Yoon YB, Lee SH, Park JK, Woo SM, Yang KY, Seo JK, Ryu JK, Kim YT. [Pancreatic endocrine tumors: clinical manifestations and predictive factors associated with survival]. Korean J Gastroenterol 2008; 52:171-178. [PMID: 19077513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND/AIMS Since pancreatic endocrine tumors (PET) are rare and heterogeneous diseases, their survival and prognosis are not well known. Due to recent advances in CT/MRI technology, incidentalomas of the pancreas are detected with increasing frequency. This study presents results of clinical manifestations of PET and predictive factors associated with survival. METHODS From year 1990 through 2006, medical records of 98 patients (56 men, 42 women) who were diagnosed as PET pathologically at Seoul National University Hospital were reviewed retrospectively. RESULTS Ages ranged from 17 to 76 years (mean 51.6+/-1.3 years) with a mean follow-up of 3.6+/-0.4 years (range 0-10.1 years). Overall 5-year survival rate was 68.1%, and 5-year survival rate of the patients who had distant metastases at initial diagnosis was 43.9%. Functioning tumors [hazard ratio (HR) 0.229, 95% confidence interval (CI) 0.056-0.943, p=0.041] and lymph node or liver metastases (HR 5.537, 95% CI 2.106-14.555, p<0.001) were the significant prognostic factors associated with survival rate. However, tumor size and pathology showed no significant association with survival. CONCLUSIONS Because small and pathologically benign nature do not predict good prognosis in PET, aggressive treatment such as curative resection would be considered initially even in the case of incidental PET.
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Affiliation(s)
- Woo Hyun Paik
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
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Lee SH, Lee KS, Park YS, Hwang JH, Kim JW, Jung SH, Kim N, Lee DH, Kim SG, Kim JS, Jung HC, Yoon YB, Song IS. Submucosal saline-epinephrine injection in colon polypectomy: appropriate indication. Hepatogastroenterology 2008; 55:1589-1593. [PMID: 19102348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND/AIMS Opinions vary among endoscopists concerning the indications for submucosal saline-epinephrine injection for the prevention of postpolypectomy complications after colonic snare polypectomy. This study was performed to determine the appropriate indications for submucosal saline-epinephrine injection. METHODOLOGY Clinical characteristics and complications (hemorrhage and perforation) in polypectomies were retrospectively evaluated. Postpolypectomy complications were analyzed in terms of demographic characteristics (age, gender), polyp characteristics (size, configuration, location, and histopathology), and the administration of submucosal saline-epinephrine injection. RESULTS Total 1039 polypectomies were performed in 563 patients (age 59.8 +/- 10.1 years), and submucosal saline-epinephrine injection was performed in 679 polypectomies. Twenty seven episodes (2.6%) of hemorrhage and 3 cases (0.2%) of perforation occurred. Malignant adenoma, a rectal polyp, and procedure without submucosal saline-epinephrine injection increased the risk of hemorrhage with odds ratios of 10.48, 4.71, and 3.44, respectively. Furthermore, submucosal saline-epinephrine injection significantly reduced the risk of hemorrhage in sessile polyps and those > 8 mm in size and with odds ratio of 16.41 regardless of location or histopathology. The occurrence of postpolypectomy perforation was not associated with any clinical characteristics and method. CONCLUSIONS Submucosal saline-epinephrine injection should be performed for sessile polyps and those > 8 mm in size, and might be performed optionally in other cases to prevent postpolypectomy hemorrhage.
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Affiliation(s)
- Sang Hyub Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital
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Min BH, Lee H, Jeong JS, Son HJ, Kim JJ, Rhee JC, Rhee PL, Yoon YB. Comparison of a novel teeth-protecting mouthpiece with a traditional device in preventing endoscopy-related complications involving teeth or temporomandibular joint: a multicenter randomized trial. Endoscopy 2008; 40:472-7. [PMID: 18543135 DOI: 10.1055/s-2007-995647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND STUDY AIMS After upper endoscopy, patients have complained of symptoms involving teeth or the temporomandibular joint; however, these endoscopy-related complications are usually ignored with few attempts to prevent them. The aim of this study was to identify the incidence of endoscopy-related complications involving teeth or temporomandibular joint, and to compare the effectiveness of a newly developed teeth-protecting mouthpiece (TPM) with a traditional mouthpiece (the MB-142) in preventing these complications. PATIENTS AND METHODS 872 patients from 28 centers, who were undergoing their first upper endoscopy, were randomly assigned to TPM and MB-142 groups. At 3 - 4 days after the procedure, the occurrence of endoscopy-related complications involving the teeth or the temporomandibular joint was investigated using a structured questionnaire. Finally 865 patients (TPM group, n = 423; MB-142, n = 442) responded to this questionnaire and were included in the analysis. RESULTS Overall, the incidence of complications was significantly lower in the TPM than in the MB-142 group (0.9% vs. 3.2%). With stratification according to sedation status, in nonsedated patients no significant difference was found between the two groups (0.7% vs. 0.9%). In sedated patients, however, the TPM group showed a significantly lower incidence of complication than the MB-142 group (1.7% vs. 11.6%). Clinically serious problems such as a tooth fracture or a loose tooth occurred only in sedated patients in the MB-142 group. CONCLUSIONS The TPM showed an advantage over the MB-142 mouthpiece for preventing endoscopy-related complications involving teeth or the temporomandibular joint.
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Affiliation(s)
- B-H Min
- Department of Medicine, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
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Lee SH, Ryu JK, Woo SM, Park JK, Yoo JW, Kim YT, Yoon YB, Suh KS, Yi NJ, Lee JM, Han JK. Optimal interventional treatment and long-term outcomes for biliary stricture after liver transplantation. Clin Transplant 2008; 22:484-93. [PMID: 18318735 DOI: 10.1111/j.1399-0012.2008.00813.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We undertook an evaluation of the clinical outcomes of endoscopic cholangioplasty (ECP) and percutaneous cholangioplasty (PCP) for biliary strictures after liver transplantation. We compared success rates of intervention, patency after successful intervention and procedure-related morbidities in 79 patients with anastomotic stricture (n = 54) or non-anastomotic stricture (n = 25). Twenty-five ECP and 61 PCP procedures were performed; seven PCP procedures were consecutively performed after failure of ECP. Fifty-one (64.6%) patients were successfully treated by cholangioplasty. Successful intervention rates (60.0% in ECP vs. 59.3% in PCP, p = 1.00) and patencies after successful intervention (44.8 +/- 7.4 months in ECP vs. 41.9 +/- 3.4 months in PCP, p = 0.47) were no different for the two techniques. However, the number of intervention sessions for PCP (7.2 +/- 0.6) was higher than for ECP (2.9 +/- 0.6) (p < 0.01). Multivariate analysis showed that only an anastomotic stricture was found to be related with a longer patency with an estimated odds ratio of 5.74 (p = 0.04) and had a tendency to be associated with successful intervention with an estimated odds ratio of 3.12 (p = 0.07) irrespective of techniques. Endoscopic access should be the preferred first approach in patients with biliary stricture after liver transplantation irrespective of the type of stricture, in view of its less invasive nature and patient convenience.
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Affiliation(s)
- Sang Hyub Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Lee SH, Hwang JH, Yang KY, Lee KH, Park YS, Park JK, Woo SM, Yoo JW, Ryu JK, Kim YT, Yoon YB. Does endoscopic sphincterotomy reduce the recurrence rate of cholangitis in patients with cholangitis and suspected of a common bile duct stone not detected by ERCP? Gastrointest Endosc 2008; 67:51-7. [PMID: 17996234 DOI: 10.1016/j.gie.2007.05.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2006] [Accepted: 05/16/2007] [Indexed: 01/13/2023]
Abstract
BACKGROUND It has not been established whether endoscopic sphincterotomy (ES) prevents subsequent cholangitis in patients with cholangitis and with a common bile duct (CBD) stone not documented by ERCP. OBJECTIVE The aim of this study was to investigate the role of ES on the recurrence of cholangitis in patients with a high probability of having a CBD stone, not demonstrated by ERCP. DESIGN AND PATIENTS A total of 117 patients who were diagnosed as having cholangitis and a high probability of a CBD stone, not detected by ERCP, were retrospectively reviewed. Cumulative recurrence rates of cholangitis were compared for treatments with and without ES. SETTING Multicenter, retrospective study. INTERVENTIONS ES. MAIN OUTCOME MEASUREMENTS Cumulative recurrence of cholangitis after ERCP. RESULTS Eighty-three patients underwent ES (ES group) and 34 patients did not (non-ES group). No statistically significant differences between the 2 groups were evident in terms of demographic factors or laboratory findings. The mean (standard deviation) follow-up was 22.1 +/- 17.2 months (range 3-66 months) in the ES group and 23.3 +/- 14.9 months (range 6-84 months) in the non-ES group (P = .72). The cumulative rates of cholangitis were 6.3% (4.8% vs 9.9%) at 1 year, 15.6% (9.2% vs 29.3%) at 3 years, and 19.5% (9.2% vs 52.9%) at 5 years for ES vs non-ES groups, respectively (P = .04). By multivariate analysis, ES reduced cholangitis recurrence, with a hazard ratio of 0.305 (95% CI 0.095-0.975, P = .045). LIMITATIONS Retrospective study. CONCLUSIONS ES reduced further episodes of cholangitis in patients with an episode of cholangitis and a high probability of choledocholithiasis, despite the lack of a CBD stone seen on ERCP.
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Affiliation(s)
- Sang Hyub Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Kim YJ, Im SA, Kim HG, Oh SY, Lee KW, Choi IS, Oh DY, Lee SH, Kim JH, Kim DW, Kim TY, Kim SW, Heo DS, Yoon YB, Bang YJ. A phase II trial of S-1 and cisplatin in patients with metastatic or relapsed biliary tract cancer. Ann Oncol 2008; 19:99-103. [PMID: 17846018 DOI: 10.1093/annonc/mdm439] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Optimal chemotherapy for advanced biliary tract cancer (BTC) is yet to be defined. We carried out this study to evaluate the efficacy and toxicity of combination chemotherapy with S-1 and cisplatin in metastatic or relapsed BTC. PATIENTS AND METHODS Patients with pathologically proven BTC were eligible. The chemotherapy regimen consisted of S-1 (40 mg/m(2) p.o. b.i.d. from D1-14) and cisplatin (60 mg/m(2) on D1), repeated every 3 weeks. RESULTS Fifty-one BTC patients (metastatic:relapsed = 37:14, Gall-bladder:intrahepatic bile ducts:extrahepatic bile ducts = 16:25:10) were enrolled from January 2005 to December 2006. Median age was 57 years (range, 31-71) and most patients had a good performance status. The overall response rate was 30% [95% confidence interval (CI), 17.3-42.7] and complete response was observed in two patients (4%), partial response in 13 (26%), stable disease in 21 (42%), and progressive disease in 9 (18%). With a median follow-up of 12.4 months, the median time to progression was 4.8 months (95% CI, 3.3-6.3) and median overall survival was 8.7 months (95% CI, 6.0-11.4). Major toxic effects were grade 3/4 neutropenia (8.9% of all cycles) and febrile neutropenia was observed in six cycles (2.7% of all cycles). CONCLUSION Combination chemotherapy with S-1 and cisplatin was a moderately effective outpatient-based regimen in BTC patients. Toxic effects were moderate but manageable.
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Affiliation(s)
- Y J Kim
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Lee SH, Ryu JK, Lee KY, Woo SM, Park JK, Yoo JW, Kim YT, Yoon YB. Enhanced anti-tumor effect of combination therapy with gemcitabine and apigenin in pancreatic cancer. Cancer Lett 2007; 259:39-49. [PMID: 17967505 DOI: 10.1016/j.canlet.2007.09.015] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Revised: 09/16/2007] [Accepted: 09/20/2007] [Indexed: 10/22/2022]
Abstract
Apigenin is a dietary flavonoid possessing therapeutic potential against cancers. This study was designed to investigate whether combination therapy with gemcitabine and apigenin enhanced anti-tumor efficacy in pancreatic cancer. In vitro, the combination treatment resulted in more growth inhibition and apoptosis through the down-regulation of NF-kappa B activity with suppression of Akt activation in pancreatic cancer cell lines (MiaPaca-2, AsPC-1). In vivo, the combination therapy augmented tumor growth inhibition through the down-regulation of NF-kappa B activity with the suppression of Akt in tumor tissue. The combination of gemcitabine and apigenin enhanced anti-tumor efficacy through Akt and NF-kappa B activity suppression and apoptosis induction.
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Affiliation(s)
- Sang Hyub Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 110-744, Yeongeon-dong 28, Jongno-gu, Seoul, Republic of Korea
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Park JK, Ryu JK, Lee KH, Lee JK, Yoon WJ, Lee SH, Yoo JW, Woo SM, Lee GY, Lee CH, Kim YT, Yoon YB. Quantitative analysis of NPTX2 hypermethylation is a promising molecular diagnostic marker for pancreatic cancer. Pancreas 2007; 35:e9-15. [PMID: 17895837 DOI: 10.1097/mpa.0b013e318153fa42] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Percutaneous fine-needle aspiration cytology or biopsy has been used for pathological confirmation in pancreatic cancer. Sometimes, it is difficult to approach the mass because of surrounding major vessels, and there is a risk of seeding. Although endoscopic retrograde cholangiopancreatography (ERCP)-guided pancreatic duct brush cytology is less invasive, its reliability is very low. Recently, aberrantly methylated genes were reported in pancreatic cancer tissue. This study was to develop a novel molecular diagnostic approach based on epigenetic characteristics. METHODS We enrolled pathologically proven 33 pancreatic cancer patients and 22 benign pancreaticobiliary disease patients. The ERCP-guided pancreatic duct brush cytology samples were obtained. Genomic DNA was extracted, and NPTX2 CpG island hypermethylation was examined quantitatively by real-time polymerase chain reaction amplification after chemical modification. RESULTS Pancreatic cancer cytology samples had statistically significant higher levels of NPTX2 methylation compared with benign diseases, and the optimal cutoff value of NPTX2 methylation was 1.2%. The sensitivity was 87%, and specificity was 80%, whereas pathological examination by ERCP-guided pancreatic duct brush cytology had a sensitivity of 38%. CONCLUSIONS The quantitative analysis of NPTX2 hypermethylation may play a role in making highly sensitive and less invasive diagnosis of pancreatic cancer. Therefore, NPTX2 hypermethylation could be a promising molecular diagnostic marker.
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Affiliation(s)
- Joo Kyung Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Lee SH, Shin CM, Park JK, Woo SM, Yoo JW, Ryu JK, Yoon YB, Kim YT. Outcomes of cystic lesions in the pancreas after extended follow-up. Dig Dis Sci 2007; 52:2653-9. [PMID: 17404855 DOI: 10.1007/s10620-006-9634-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2006] [Accepted: 09/27/2006] [Indexed: 12/18/2022]
Abstract
Incidental pancreatic cysts are frequently detected, but no appropriate management guidelines have been issued for their management because their natural history is relatively unknown. The aim of this study was to investigate their long-term clinical outcomes. Pancreatic cysts detected from 1998 to 2004 were retrospectively reviewed in patients followed up for more than 3 months. A total of 182 patients with incidental pancreatic cysts (initial mean size, 1.8+/-1.1 cm) underwent follow-up for an average of 35.4 months. An age>/=60 years was found to be associated with an increase in cyst size, with an odds ratio of 2.56. Two malignant cysts were found among 20 patients who underwent surgical resection during follow-up. Old age was also associated with the presence of a premalignant or malignant cyst (P<0.01). Although the majority of incidental pancreatic cysts show an indolent behavior, long-term, regular follow-up studies should be considered for all pancreatic cysts, especially in the elderly.
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Affiliation(s)
- Sang Hyub Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Kim JJ, Lee JH, Jung HY, Lee GH, Cho JY, Ryu CB, Chun HJ, Park JJ, Lee WS, Kim HS, Chung MG, Moon JS, Choi SR, Song GA, Jeong HY, Jee SR, Seol SY, Yoon YB. EMR for early gastric cancer in Korea: a multicenter retrospective study. Gastrointest Endosc 2007; 66:693-700. [PMID: 17905010 DOI: 10.1016/j.gie.2007.04.013] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2006] [Accepted: 04/09/2007] [Indexed: 12/12/2022]
Abstract
BACKGROUND EMR has been accepted as a treatment modality for selected cases of early gastric cancer (EGC) in Japan. However, long-term outcomes after EMR for EGC have not been fully documented. OBJECTIVES We reviewed the experiences of EMR for EGC in Korea, with emphasis on the long-term outcome. DESIGN Multicenter, retrospective study. METHODS Data were collected retrospectively by use of the on-line database registry system. From January 2000 to December 2002, 514 EGCs in 506 patients were treated by EMR in 13 institutions in Korea. Median age of the patients was 60 years (range 45-83 years). The resection was regarded as incomplete if histopathologic examination revealed a positive resection margin or submucosal invasion or positive lymphovascular invasion or undifferentiated histologic diagnosis. RESULTS The most commonly used technique was circumferential precutting followed by snare resection (EMR-P, n = 269, 52.3%). Complete resection and incomplete resection after EMR were confirmed in 399 lesions (77.6%) and 103 lesions (20.0%), respectively. For completely resected mucosal cancers (n = 399), the median duration of follow-up was 23.5 months (range 5-70 months). In this group, local recurrence was detected in 24 cases (6.0%) with a median interval between EMR and recurrence of 17.9 months (range 3.5-51.7 months). There were 3 cases with perforation and 71 cases with bleeding. No deaths were related to recurrence of gastric cancer during the overall median follow-up period of 39 months. LIMITATIONS Multicenter retrospective design, no controls. CONCLUSIONS EMR is an effective therapeutic modality for selected cases of EGC in Korea.
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Affiliation(s)
- Jae J Kim
- Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea
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Woo SM, Ryu JK, Lee SH, Yoo JW, Park JK, Kim YT, Jang JY, Kim SW, Kang GH, Yoon YB. Recurrence and prognostic factors of ampullary carcinoma after radical resection: comparison with distal extrahepatic cholangiocarcinoma. Ann Surg Oncol 2007; 14:3195-201. [PMID: 17710498 DOI: 10.1245/s10434-007-9537-y] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2007] [Revised: 06/25/2007] [Accepted: 06/27/2007] [Indexed: 12/13/2022]
Abstract
BACKGROUND Ampullary carcinoma is often considered to have a better prognosis than distal extrahepatic cholangiocarcinoma. However, studies that directly compare the recurrence and histopathological features between the two groups are rare. METHODS Clinicopathologic factors and the long-term outcomes of 163 patients with ampullary carcinoma after radical resection were retrospectively evaluated and compared with those of 91 patients with distal extrahepatic cholangiocarcinoma. RESULTS Among the 163 ampullary carcinomas, T1 stage, well-differentiated tumors and perineural invasion were 45 (28%), 73 (45%), and 23 (14%), respectively, whereas, only five (6%) were T1 stage, 15 (17%) were well differentiated, and 63 (69%) showed perineural invasion (p < 0.001, for all) in distal extrahepatic cholangiocarcinomas. More patients with distal extrahepatic cholangiocarcinoma had liver metastasis than ampullary carcinoma (24% vs. 10%, p = 0.004). Multivariate analysis identified venous invasion and perineural invasion as risk factors for recurrence of ampullary carcinoma after radical resection. Only lymph node involvement was identified as a risk factor for recurrence of distal extrahepatic cholangiocarcinoma by multivariate analysis. Overall five-year survival of patients with ampullary cancer was higher than that of patients with distal extrahepatic cholangiocarcinoma (68% vs. 54%; p = 0.033). In patients without lymph node metastasis, a significant difference in survival was also observed between the two groups (p = 0.049). CONCLUSION Earlier diagnosis and the less frequent occurrence of pathological factors associated with tumor invasiveness in ampullary carcinoma than in distal extrahepatic cholangiocarcinoma may explain its association with a better prognosis.
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Affiliation(s)
- Sang Myung Woo
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, 28 Yeongeon-dong, Jongno-gu, Seoul, Korea (ROK)
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