Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Yasuo Tsukahara is active.

Publication


Featured researches published by Yasuo Tsukahara.


Surgery Today | 2005

Preoperative Iron Supplementation and Intraoperative Transfusion During Colorectal Cancer Surgery

Masaki Okuyama; Kimimasa Ikeda; Takashi Shibata; Yasuo Tsukahara; Masashi Kitada; Takashi Shimano

PurposeTo investigative whether giving an iron preparation to anemic patients before colorectal cancer surgery improves their anemia and reduces the need for intraoperative blood transfusion.MethodsAmong 569 patients who underwent colorectal cancer surgery between 1998 and 2003, we studied 32 anemic patients who received iron supplementation for at least 2 weeks preoperatively (group A) and 84 anemic patients who did not (group B). Anemia was defined as a hemoglobin (Hb) level at first presentation of ≤10.0 g/dl. Hemoglobin and hematocrit (Ht) levels were measured at first presentation, then immediately before and after surgery. We also calculated intraoperative blood loss and compared intraoperative transfusion rates.ResultsThere were no significatnt differences between groups A and B in age, sex, surgical technique, tumor stage, and operating time. Their Hb and Ht values were similar at first presentation, but significantly different immediately before surgery (both P < 0.0001). There were no significant differences in intraoperative blood loss between the groups, but significantly fewer patients in group A needed an intraoperative blood transfusion (9.4% vs 27.4%, P < 0.05).ConclusionIron supplementation for at least 2 weeks before colorectal cancer surgery increases Hb and Ht values in anemic patients, and reduces the need for intraoperative transfusion.


Abdominal Imaging | 1993

Peliosis of the spleen with intraperitoneal hemorrhage.

Kyo Tsuda; Hironobu Nakamura; Takamichi Murakami; Takahiro Kozuka; Machiko Yoshii; Koji Isozaki; Yasuo Tsukahara; Mototaka Takami; Masato Hanada

We encountered a patient with steroidrelated peliosis of the spleen, a rare disease characterized by multiple blood-filled cavities in the splenic parenchyma, with spontaneous intraperitoneal hemorrhage. The ultrasonographic, computed tomographic, and angiographic images were compared with pathologic findings of the material obtained surgically.


Journal of Toxicologic Pathology | 1989

ESTABLISHMENT OF THE OPTIMUM CONDITIONS FOR INDUCTION OF STOMACH CARCINOMA IN RATS BY CONTINUOUS ORAL ADMINISTRATION OF N-METHYL-N-NITROSOUREA

Masahide Fujita; Taisuke Ishii; Yasuo Tsukahara; Kojiro Shimozuma; Yosuke Nakano; Taguchi T; Norio Hirota


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2002

A Cases of Endometrioid Carcinoma with Lymph Node Metastasis Arising from Endometriosis of the Rectum

Kimimasa Ikeda; Takashi Shimano; Masashi Kitada; Yasuo Tsukahara; Takashi Shibata; Yukio Fukushima; Shinsuke Hata; Kenzou Akagi; Junya Fujita; Masaki Okuyama


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2007

CLINICOPATHOLOGIC STUDY OF 88 STROMAL TUMORS ORIGINATING IN THE GASTROINTESTINAL TRACT

Junya Fujita; Masato Hanada; Junzo Shimizu; Kimimasa Ikeda; Makoto Takeuchi; Kenzo Akagi; K. Kan; Hiroshi Katsura; Shinsuke Hata; Yasuo Tsukahara; Masashi Kitada; Takashi Shimano


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2002

A Cases of Mesenteric Vein Thrombosis Secondary to Protein S Deficiency

Kimimasa Ikeda; Takashi Shimano; Masashi Kitada; Yasuo Tsukahara; Takashi Shibata; Yukio Fukushima; Shinsuke Hata; Kenzou Akagi; Masaki Okuyama; Yuji Takahashi


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2010

A CASE OF RESECTION OF BARRETTS ULCER THAT HAD CAUSED COMPLETE OCCLUSION OF THE ESOPHAGUS

Shoichiro Fujita; Ami Wada; Yasunori Watanabe; Kazunori Nakaguchi; Yasuo Tsukahara; Toshiyuki Kabuto


Acta Gastro-Enterologica Belgica | 2008

CANCER OF THE APPENDIX WITH MULTIPLE LIVER METASTASIS ASSOCIATED WITH ULCERATIVE COLITIS-A CASE REPORT-

Taishi Hata; Masayuki Ohue; Kimimasa Ikeda; Shin-ichi Nakatsuka; Yasuo Tsukahara


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2003

A CASE OF PRIMARY T CELL LYMPHOMA OF THE SMALL INTESTINE WITH PERFORATED PERITONITIS

Takaaki Nakamura; Yukio Fukushima; Yasuo Tsukahara; Takashi Shibata; Masashi Kitada; Takashi Shimano


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2003

A CASE OF INVASIVE THYMOMA DEVELOPING INTO INTRA-ABDOMINAL MASS WITH PERITONEAL METASTASIS

Takaaki Nakamura; Takashi Shibata; Jyunya Fujita; Yasuo Tsukahara; Masashi Kitada; Takashi Shimano

Collaboration


Dive into the Yasuo Tsukahara's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge