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Dive into the research topics where Kazuki Nakahara is active.

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Featured researches published by Kazuki Nakahara.


International Journal of Clinical Oncology | 2002

Efficacy of induction chemoradiotherapy in thymic cancer: report of a successful case and review of the literature

Atsushi Morio; Kazuki Nakahara; Yoshio Ohse; Minoru Tahara; Takeshi Goto; Kazuhiro Yakumaru; Tatheo Korenaga

Abstract Thymic cancer is a rare tumor, the optimal treatment of which remains controversial. The efficacy of induction therapy in thymic cancer is unclear. A 51-year-old man was diagnosed as having a poorly differentiated carcinoma of the thymus with lymph node metastasis (stage IVb according to the Masaoka staging system), through an echo-guided biopsy. The patient was administrered cisplatin (CDDP) combined with paclitaxel once per week for 4 weeks, under concurrent local radiation. Once a partial response was achieved, the residual tumor was completely resected, and bilateral mediastinal lymph nodes were dissected. Histopathological examination of the resected specimen showed no evidence of viable malignant cells. At present, 15 months after surgery, the patient is doing well and shows no signs of recurrence. This case demonstrates that induction chemoradiotherapy with CDDP and paclitaxel may be well tolerated and useful for patients with advanced thymic cancer.


Haigan | 1999

A Case of Long-term Survival after Removal of Cerebellar Metastasis Followed by Resections of Multiple Lung Cancer.

Akio Yamazaki; Sadahiko Masuda; Yoshio Oose; Minoru Tahara; Kazuki Nakahara; Kazuhiro Yakumaru

症例は75歳 (第2肺癌時), 男性.1982年6月に左小脳腫瘍で腫瘍摘出術を施行され, 転移性脳腫瘍, 腺癌と診断された.原発巣の検索を行ったが, 当時は不明であった.術後4年目に胸部X線, CT上, 右上葉に辺縁不整な腫瘤影を認めた.1986年9月, 右上葉切除術+R2aを施行した.病理で腺癌と判明し, 先の脳腫瘍は肺癌の転移と診断された.肺癌切除11年後の1997年1月, 胸部CT上, 両下肺野に限局性の間質性肺炎像を認め, 追跡していたが, 10月左下肺野の陰影に変化を認め, 精査入院となった.エコー下針生検の結果, 扁平上皮癌と診断された.1997年11月17日, 呼吸機能上の問題から左S6区域切除術を施行した.術後合併症なく, 現在脳腫瘍手術後16年経過しているが, 再発なく生存中である.


Haigan | 1999

Prognostic Factor and Repeated Pulmonary Resection for Metastases of Colorectal Carcinoma.

Kazuki Nakahara; Sadahiko Masuda; Yoshio Ohse; Minoru Tahara; Akio Yamazaki; Yoshie Yamashita; Kazuhiro Yakumaru

大腸癌肺転移切除例29例を対象に, 予後因子, 複数回手術の有用性について検討を行った.全体の5年生存率は50%, 10年生存率は44%, 中間生存期間 (MST) 38Mだった.転移個数別では単発14例, 多発15例で, それぞれの5年生存率は単発例79%, 多発例15%で, 単発例の予後が良好である傾向を認めた (p=0.06).両側多発と一側多発で生存率を比較したが差を認めず, 原発部位, DFI, 手術方法でも差を認めなかつた.複数回手術を行った症例は8例あり, そのうち2回手術を行った症例が6例, 3回手術を行つた症例が2例だった.8例中最長生存例は70ヵ月生存した.複数回手術例の初回手術を起点とした5年生存率は38%, MST: 38Mだった.再切除後のMSTは35Mで, 全体のMSTとほぼ同等だった.大腸癌肺転移に対する複数回手術は予後を改善すると思われ, 手術が可能であれば, 再切除をする意義があると思われた.


Internal Medicine | 2009

Mucosa Associated Lymphoid Tissue (MALT) Lymphoma of the Thymus with Trisomy 18

Mitsuhiro Sunohara; Kei Hara; Kou Osamura; Naoki Tashiro; Hideki Shibuya; Kazuki Nakahara; Yukiko Kishida; Kouichi Tamura; Tetsuya Hisada


The journal of the Japanese Respiratory Society | 2002

An Autopsy Case of Pulmonary and Central Nervous System Metastatic Osteosarcoma Treated with Thirty-Six Courses of Chemotherapy Over Four Years

Toshio Ito; Akihiko Mochida; Keisuke Saito; Kiyomi Nishi; Shinichi Sasaki; Tetsuya Hisada; Hajime Morinari; Kazuki Nakahara; Minoru Tahara; Sadahiko Masuda; Kazuhiro Yakumaru


Annals of Thoracic and Cardiovascular Surgery | 2013

A thymic cyst in the middle mediastinum: report of a case.

Eiki Mizutani; Kazuki Nakahara; Shigeki Miyanaga; Tomoharu Yoshiya; Yukiko Kishida; Koichi Tamura


Haigan | 1999

A Clinical Study of Resected Primary Lung Cancer in Young Adults.

Akio Yamazaki; Sadahiko Masuda; Yoshio Oose; Minoru Tahara; Kazuki Nakahara; Yoshie Yamashita; Kazuhiro Yakumaru


The Japanese journal of thoracic diseases | 1993

A Case of Intralobar Pulmonary Sequestration Associated with an Accessory Diaphragm

Yoshiyuki Doi; Tomohiro Tsuchida; Kouji Suzuki; Toshio Itoh; Tetsuya Hisada; Hajime Morinari; Kazuki Nakahara; Toshinori Okazaki; Sadahiko Masuda; Kazuhiro Yakumaru


Haigan | 1998

A Case of Resected Left Pulmonary Adenocarcinoma Accompanied by Extra-adrenal Pheochromocytoma.

Akio Yamazaki; Sadahiko Masuda; Yoshio Oose; Minoru Tahara; Kazuki Nakahara; Kazuhiro Yakumaru


The Japanese Journal of Thoracic and Cardiovascular Surgery | 2015

Safe stapling technique for pulmonary vessels with the shortened introducers and curved tips in thoracoscopic surgery

Eiki Mizutani; Kazuki Nakahara; Shigeki Miyanaga; Ayako Seike

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Tetsuya Hisada

National Defense Medical College

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