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Featured researches published by Koichi Takano.


Japanese Journal of Clinical Oncology | 2015

Prognostic value of neutrophil-lymphocyte ratio and level of C-reactive protein in a large cohort of pancreatic cancer patients: a retrospective study in a single institute in Japan.

Dai Inoue; Masato Ozaka; Masato Matsuyama; Ikuhiro Yamada; Koichi Takano; Akio Saiura; Hiroshi Ishii

OBJECTIVE Recent studies suggest that systemic inflammatory response is closely associated with cancer patient prognosis. Although several inflammatory prognostic markers have been proposed, the data to support their validity are lacking in large Japanese cohorts. METHODS This is a retrospective study to examine the prognostic value of inflammatory markers, such as C-reactive protein, neutrophil-lymphocyte ratio, platelet-lymphocyte ratio and modified Glasgow prognostic scale, in pancreatic cancer. Selection criteria were admittance to hospital between January 2008 and December 2012, histologically confirmed adenocarcinoma, diagnosis of invasive ductal pancreatic cancer compatible by computed tomography imaging, and followed-up until death or for 180 days or longer. The primary end point was overall survival, which was measured from the day of histological diagnosis. RESULTS There were 440 patients who met the selection criteria. Of the 440 cases, 200 (45.5%) received curative resection (166 Stage I/II and 34 Stage III patients), 237 (53.9%) received chemotherapy (4 Stage I/II, 92 Stage III and 141 Stage IV patients), and the remaining 3 received palliative care. Univariate and multivariate regression analyses revealed that advanced computed tomography stage, high level of C-reactive protein (0.45 mg/dl or greater), neutrophil-lymphocyte ratio (2.0 or greater) and CA19-9 level (1000 U/ml or greater) were significantly associated with worse prognosis. CONCLUSIONS We verified the results of previous studies, and showed that neutrophil-lymphocyte ratio and C-reactive protein also had prognostic value in a large Japanese PC cohort.


Japanese Journal of Clinical Oncology | 2011

Outcomes and Tolerability of Systemic Chemotherapy for Pancreatic or Biliary Cancer Patients Aged 75 Years or Older

Seigo Yukisawa; Hiroshi Ishii; Masato Matsuyama; Kensuke Kuraoka; Koichi Takano; Akira Kamei; Masato Ozaka

BACKGROUND The incidence of pancreatic or biliary tract cancer is increasing in our aging population, but little is known of treatment outcomes in elderly patients with pancreatic or biliary tract cancer. PATIENTS AND METHODS Patients with pancreatic or biliary tract cancer who received chemotherapy in our institute between September 2007 and August 2009 were retrospectively reviewed to compare treatment outcomes between the elderly (aged 75 years or older) and the younger patients. Data were collected of patient backgrounds, adverse events and dose intensity within the first two cycles and overall survival time. RESULTS Of the 102 who met the inclusion criteria, 19 were elderly who were introduced to full dose chemotherapy. Medication for their comorbidities was required in 15 (79%) of the 19 elderly patients and in 27 (33%) of 83 younger patients. The frequencies of haematological adverse events of grades 3 or 4 were 42% and 39%, and those of non-haematological adverse events were 21% and 16%, for the elderly and younger, respectively. Similar dose intensities were delivered to the elderly and younger. Also, similar proportions of elderly and younger received dose reductions. There was no difference in overall survival between the elderly and the younger. CONCLUSION No clear difference in treatment outcomes was seen between the elderly and the younger patients who received gemcitabine alone. Gemcitabine chemotherapy appears to be safe and the same treatment effect was seen even in older patients with pancreatic or biliary tract cancer.


Pancreatology | 2008

Pancreatogram findings for carcinoma in situ (CIS) of the pancreas seen on endoscopic retrograde cholangiopancreatography and postoperative pancreatography of resected specimens: can CIS be diagnosed preoperatively?

Makoto Seki; Eiji Ninomiya; Koichi Takano; Rikiya Fujita; Akiko Aruga; Keiko Yamada; Hiroko Tanaka; Kiyoshi Matsueda; Kazuhisa Mikami; Naoki Hiki; Akio Saiura; Junji Yamamoto; Toshiharu Yamaguchi; Akio Yanagisawa; Masaki Ikeda; Keiko Sasaki; Yo Kato

Background/Aims: From 1992 to 2003, 7 carcinomata in situ (CIS) were incidentally discovered during microscopical observation of resected materials for advanced carcinomas of peripancreatic organs, of which 4 had undergone endoscopic retrograde cholangiopancreatography (ERCP) or postoperative pancreatography of the resected specimen (POP). In addition, 7 of 79 invasive ductal carcinomata (IDC) of the pancreas were accompanied by CIS ≧2 cm long. A total of 11 patients were reviewed here for pancreatographic findings for CIS of the pancreas. Methods: All resected pancreatobiliary materials were sliced serially at 5- to 8-mm intervals in a plane at right angles to the main pancreatic duct, referring to POP images. Results: Irregularity (I), non-continuous narrowing (N), granular defects (G), and dilatation (D) were seen in 78, 67, 33 and 22% on ERCP, respectively, and in 90, 70, 60 and 40% on POP, respectively. Conclusions: I, N, G, and D are most important pancreatographic findings in ERCP and highly suggestive of CIS of the pancreas, so that whenever they are encountered, cytological and/or pathological examination of the pancreatic duct should be actively performed.


European Journal of Gastroenterology & Hepatology | 2012

A transcatheter arterial chemotherapy using a novel lipophilic platinum derivative (miriplatin) for patients with small and multiple hepatocellular carcinomas.

Seigo Yukisawa; Hiroshi Ishii; Akiyoshi Kasuga; Masato Matsuyama; Kensuke Kuraoka; Koichi Takano; Masato Ozaka

Background/purpose Miriplatin is a platinum complex developed to treat hepatocellular carcinoma (HCC) through administration into the hepatic artery as a sustained-release formulation suspended in lipiodol. A single-institute pilot study was conducted to investigate the antitumor efficacy of miriplatin infusion therapy for small and multiple HCCs. Materials and methods Small HCCs sized 2 cm or less, judged to be inadequate for curative treatment, were indicated for transcatheter arterial miriplatin infusion therapy. We prospectively investigated the course of patients treated with miriplatin between March 2010 and September 2010. Efficacy was evaluated by computed tomography at 4–8 weeks and the overall evaluation was carried out more than 3 months after treatment. Results The study included 14 patients, of whom 13 were evaluable for efficacy. Of the 13 patients, one (8%) showed a complete response and three (23%) showed a partial response, with an overall response rate of 31%. Grade 3/4 hematological toxicity including thrombocytopenia was not seen. Increases to grade 3/4 in aspartate aminotransferase and alanine aminotransferase were observed for nonhematological toxicity. Irreversible deleterious changes in hepatic function were not seen. Conclusion Miriplatin infusion therapy showed safe and moderate effects on small HCCs. However, transarterial chemoembolization as a standard therapy cannot be replaced. We await the results of an ongoing study of transarterial chemoembolization with miriplatin.


Pancreatology | 2008

Pancreas Cancer 2008

Joanna Osada; M. Klauss; A. Mohr; H. von Tengg-Kobligk; H. Friess; R. Singer; P. Seidensticker; H.U. Kauczor; G.M. Richter; G.W. Kauffmann; L. Grenacher; Akiyoshi Hagiwara; Hiroshi Miyauchi; Shuji Shimazaki; Raul Urrutia; Milena Dabrowska; Urszula Wereszczynska-Siemiatkowska; Jorge Colonna; Jose A. Plaza; Wendy L. Frankel; Martha Yearsley; Mark Bloomston; William L. Marsh; Makoto Seki; Eiji Ninomiya; Koichi Takano; Rikiya Fujita; Akiko Aruga; Keiko Yamada; Hiroko Tanaka

and Poster Review Committee John P. Hoffman, Philadelphia, Pa. Charles M. Vollmer, Boston, Mass.


Journal of Hepato-biliary-pancreatic Surgery | 2005

Clinicopathology of pancreaticobiliary maljunction: relationship between alterations in background biliary epithelium and neoplastic development

Makoto Seki; Akio Yanagisawa; Eiji Ninomiya; Yasuro Ninomiya; Hirotoshi Ohta; Akio Saiura; Junji Yamamoto; Toshiharu Yamaguchi; Akiko Aruga; Keiko Yamada; Koichi Takano; Rikiya Fujita; Masayuki Ikeda; Keiko Sasaki; Yo Kato


Journal of Hepato-biliary-pancreatic Surgery | 2005

Image-diagnostic features of mature cystic teratomas of the pancreas: report on two cases difficult to diagnose preoperatively

Makoto Seki; Eiji Ninomiya; Akiko Aruga; Keiko Yamada; Rintaro Koga; Akio Saiura; Junji Yamamoto; Toshiharu Yamaguchi; Koichi Takano; Rikiya Fujita; Keiko Sasaki; Yo Kato


Journal of Hepato-biliary-pancreatic Surgery | 2003

Surgical treatment of intraductal papillary-mucinous tumor (IPMT) of the pancreas: operative indications based on surgico-pathologic study focusing on invasive carcinoma derived from IPMT.

Makoto Seki; Akio Yanagisawa; Hirotoshi Ohta; Yasuro Ninomiya; Yoshihiro Sakamoto; Junji Yamamoto; Toshiharu Yamaguchi; Eiji Ninomiya; Koichi Takano; Akiko Aruga; Keiko Yamada; Keiko Sasaki; Yo Kato


Hepato-gastroenterology | 2007

Locally advanced intrahepatic cholangiocarcinoma successfully resected after transcatheter arterial chemoembolization with degradable starch microspheres: report of a case.

Yongyou Wu; Akio Saiura; Junji Yamamoto; Rintaro Koga; Shingo Asahara; Akira Kamei; Koichi Takano; Takaaki Ikari; Makoto Seki; Toshiharu Yamaguchi; Tetsuichiro Muto


Hepato-gastroenterology | 2007

CT and MRI findings with contrast enhancement of small pancreatic adenocarcinoma in the late phase.

Susumu Hijioka; Takaaki Ikari; Akira Kamei; Koichi Takano; Shingo Asahara; Naoya Fujita; Miyuki Shimizu; Junji Yamamoto; Rikiya Fujita; Keiko Sasaki

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Makoto Seki

Mitsubishi Chemical Corporation

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Masato Matsuyama

Japanese Foundation for Cancer Research

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Masato Ozaka

Japanese Foundation for Cancer Research

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Yo Kato

Japanese Foundation for Cancer Research

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Akio Saiura

Japanese Foundation for Cancer Research

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