Yasuo Tsukahara
Osaka University
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Featured researches published by Yasuo Tsukahara.
Surgery Today | 2005
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
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
Masahide Fujita; Taisuke Ishii; Yasuo Tsukahara; Kojiro Shimozuma; Yosuke Nakano; Taguchi T; Norio Hirota
Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2002
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
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
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
Shoichiro Fujita; Ami Wada; Yasunori Watanabe; Kazunori Nakaguchi; Yasuo Tsukahara; Toshiyuki Kabuto
Acta Gastro-Enterologica Belgica | 2008
Taishi Hata; Masayuki Ohue; Kimimasa Ikeda; Shin-ichi Nakatsuka; Yasuo Tsukahara
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2003
Takaaki Nakamura; Yukio Fukushima; Yasuo Tsukahara; Takashi Shibata; Masashi Kitada; Takashi Shimano
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2003
Takaaki Nakamura; Takashi Shibata; Jyunya Fujita; Yasuo Tsukahara; Masashi Kitada; Takashi Shimano