Koei Nihei
Niigata University
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Publication
Featured researches published by Koei Nihei.
Pancreas | 2009
Isao Kurosaki; Yasuyuki Kawachi; Koei Nihei; Yoshiaki Tsuchiya; Takashi Aono; Naoyuki Yokoyama; Takeaki Shimizu; Katsuyoshi Hatakeyama
Objectives: Liver perfusion chemotherapy (LPC) for pancreatic cancer has been rarely undertaken in a postoperative adjuvant setting. We evaluated the feasibility and antitumor efficacy of LPC with 5-fluorouracil (5-FU) followed by gemcitabine treatment. Methods: This prospective study enrolled 27 patients who underwent pancreatic resection and subsequent LPC + gemcitabine treatment during a 3-year period. The liver was infused with 5-FU (125 mg/body per day per route) via both routes of hepatic artery and portal vein for more than 21 days. After that, gemcitabine (1000 mg/m2) was administered biweekly. Results: Portal vein thrombosis developed in 1 patient, but 89% patients tolerated LPC for more than 21 days with no life-threatening complication. Systemic administration of gemcitabine was accomplished in 93%; however, 1 patient died of serious capillary leak syndrome. No grade 4 toxicity was recorded, except for that patient. Median survival time and disease-free survival were 27.5 and 24.5 months, respectively. Hepatic relapse was observed in 25.9% (n = 7). Survival was in favor of paraaortic node-negative cases (n = 20) with a 2-year survival of 68.7%. Conclusions: Liver perfusion chemotherapy was feasible with acceptable toxicity. Systemic use of gemcitabine also seems to be safe for the most part. This adjuvant chemotherapy shows promising survival benefit and seems to be indicative to paraaortic node-negative tumors.
Surgery Today | 2000
Isao Kurosaki; Katsuyoshi Hatakeyama; Koei Nihei; Tsutomu Suzuki; Kazuhiro Tsukada
We present herein the case of a patient who underwent a thoracic esophagectomy and pylorus-preserving pancreatoduodenectomy in a one-stage procedure for synchronous double primary cancer of the thoracic esophagus and the head of the pancreas (intraductal papillary tumor). To reconstruct the upper alimentary tract with the stomach, the gastroduodenal artery and right gastroepiploic vein were successfully skeletonized and preserved. The postoperative course was uneventful and the patient is currently well, 5 years after surgery.
Digestive Diseases and Sciences | 2002
Shogo Okoshi; Masato Igarashi; Takeshi Suda; Hiroshi Iwamatsu; Kohji Watanabe; Kiyoshi Ishihara; Norio Ogata; Minoru Nomoto; Toru Takahashi; Takafumi Ichida; Hitoshi Asakura; Koei Nihei; Isao Kurosaki
In this report, we examine two patients with chronic hepatitis B virus (HBV) infection that had been diagnosed as precirrhosis or liver cirrhosis more than a decade previously. These patients had been cleared of HBsAg and had developed anti-HBs at a later time, yet hepatocellular carcinoma (HCC) eventually occurred. Both patients had been found negative for HBV DNA, using sensitive methods. Interestingly, a nontumor specimen of the liver obtained at surgical resection showed a marked reduction of fibrosis when compared to the histology observed when the patient was diagnosed as precirrhosis. Our findings suggest that the fibrosis from liver cirrhosis had been absorbed to a large extent during the long-term absence of active viremia and the normalization of alanine aminotransferase (ALT) levels. However, the cancer-prone biological characteristics of liver cirrhosis remained. Thus, patients with liver cirrhosis due to past chronic hepatitis B should be monitored carefully for the development of HCC even if HBV infection has been serologically resolved.
Journal of Hepato-biliary-pancreatic Surgery | 2004
Isao Kurosaki; Katsuyoshi Hatakeyama; Koei Nihei; Manabu Oyamatsu
Hepato-gastroenterology | 2003
Isao Kurosaki; Katsuyoshi Hatakeyama; T. Kobayashi; Koei Nihei
Surgery Today | 2013
Chie Kitami; Isao Kurosaki; Yasuyuki Kawachi; Koei Nihei; Yoshiaki Tsuchiya; Tatsuya Nomura; Masahiro Minagawa; Kabuto Takano; Katsuyoshi Hatakeyama
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2007
Tomoyuki Kakuta; Satoshi Suzuki; Takeshi Mishina; Koei Nihei; Akira Iwaya; Mami Watanabe
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2000
Satoshi Suzuki; Takeshi Mishina; Koei Nihei; Satoru Yamasaki; Yuko Tosaka; Yoichi Matsubara
Hepato-gastroenterology | 1999
Isao Kurosaki; Kazuhiro Tsukada; H. Ohzeki; Koei Nihei; A. Nishimura; Katsuyoshi Hatakeyama
新潟医学会雑誌 | 2010
昌広 皆川; 功 黒崎; 勝義 畠山; 幸栄 二瓶; Masahiro Minagawa; Isao Kurosaki; Katsuyoshi Hatakeyama; Koei Nihei