Yasuyuki Jin
Yokohama City University
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Featured researches published by Yasuyuki Jin.
The Annals of Thoracic Surgery | 1995
Susumu Isoda; Yoshimi Yano; Yasuyuki Jin; Henry L. Walters; Jiro Kondo; Akihiko Matsumoto
The regional and total blood flow of canine latissimus dorsi muscle flaps (LDMFs) were examined to study the effect of a delay procedure, ligation of the perforators, before complete flap elevation. The regional blood flow of the middle and distal regions of the nondelayed LDMFs was poor and significantly lower than the proximal region at rest. The regional blood flow during the exercise test was improved and significantly higher in the middle (62% increase) and distal regions (187% increase) of the delayed LDMFs as compared with the nondelayed LDMFs. The mean total blood flow of the delayed LDMFs was 14 mL.min-1.100(-1) g at rest, increased to 30 mL.min-1.100(-1) g during exercise tests with intermittent burst electrical stimulation, and was maximal at 40 mL.min-1.100(-1) g immediately after the exercise. The phasic arterial blood flow of the delayed LDMFs was inhibited during contraction at 9 mL.min-1.100(-1) g, whereas it was 44 mL.min-1.100(-1) g during relaxation. In contrast, the phasic venous blood flow was accentuated during contraction to 32 mL.min-1.100(-1) g compared with 16 mL.min-1.100(-1) g during relaxation.
Surgery Today | 2015
Masakatsu Numata; Kimiatsu Hasuo; Kentaro Hara; Yukio Maezawa; Keisuke Kazama; Hitoshi Inari; Ken Takata; Yasuyuki Jin; Norio Yukawa; Takashi Oshima; Yasushi Rino; Masataka Taguri; Munetaka Masuda
PurposePrevious studies from Western countries have shown similar survival outcomes after both open and laparoscopic resections. In Japan, radical D3 dissections performed by open resection have been routinely performed for ≥T2- or ≥N1-stage cancers, and relatively favorable survival outcomes were obtained. This study compared the survival in patients with Stage I/II colon and upper rectal cancers undergoing laparoscopic and open resection.MethodsA total of 145 patients were initially enrolled. Propensity score matching was applied to assemble a study cohort. D2 lymph node dissection for T1 cancer and D3 for ≥T2- and ≥N1-stage cancers were applied. The primary outcome measure was the disease-free survival; the cancer-specific and overall survival rates were secondary outcomes.ResultsA total of 64 patients were matched for the analysis. The length of hospitalization, postoperative complication rates, number of lymph nodes removed and surgical margins were similar between the groups. The disease-free survival following laparoscopic surgery was better than that following open surgery, but the difference was not statistically significant. Neither the cancer-specific nor overall survival rates following laparoscopic surgery were inferior to those associated with open surgery.ConclusionsThe outcomes of the laparoscopic approach were comparable to those for open surgeries accompanied by radical lymph node dissection.
International Journal of Surgery Case Reports | 2013
Takanobu Yamada; Yasuyuki Jin; Kimiatsu Hasuo; Yukio Maezawa; Yuta Kumazu; Yasushi Rino; Munetaka Masuda
INTRODUCTION Chylorrhea is a form of lymphorrhea involving digested lipid products absorbed in the small intestine. Here we report a rare case of chylorrhea after laparoscopy-assisted distal gastrectomy (LADG) with D1+ dissection that resolved following administration of a low-fat diet. PRESENTATION OF CASE A 35-year-old woman with early gastric cancer underwent LADG with D1+ dissection, and on postoperative day 4, the drain output increased and the fluid with a high triglyceride level (740 mg/dL) changed from clear to milky. On postoperative day 6, oral intake of a low-fat diet was initiated after a 2-day fast, and the daily drain output decreased from postoperative day 9. The drain tube was withdrawn on postoperative day 15, and the patient was discharged on postoperative day 17. DISCUSSION D1+ dissection does not typically cause injury to the lymphatic trunks, cisterna chyli, or thoracic duct. The maximum output of chylous ascites was minimal, and thus, we assumed that chylorrhea occurred from slightly injured lymphatics with anatomical variation. CONCLUSION Chylorrhea after LADG with D1+ dissection is very rare. The fasting of our case followed by a low-fat diet without TPN would be an effective therapy. As a result, our case recovered favorably without further therapy.
The Annals of Thoracic Surgery | 1999
Yukio Ichikawa; Hirokazu Kajiwara; Toshiyuki Hamada; Ichiya Yamazaki; Yasuyuki Jin; Sunao Sato
We report a case of vasospasm of a free inferior epigastric artery graft at 5-year angiographic follow-up after coronary artery bypass grafting. Although the cause of spasm was not clear, the graft was viable and had a vasoconstrictor profile similar to a gastroepiploic artery graft at long-term follow-up.
Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2004
Kazuhito Tsuchida; Katsuya Yoneyama; Kazuyoshi Sasaki; Yasuyuki Jin; Akio Kasahara; Hiroyuki Adachi; Insop Han; Keita Fujii; Takeshi Kabara; Hiroyuki Iwasaki
Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2004
Kazuhito Tsuchida; Katsuya Yoneyama; Kazuyoshi Sasaki; Yasuyuki Jin; Akio Kasahara; Takeshi Kabara; Hiroyuki Iwasaki; Takayuki Kosuge; Yasushi Rino; Yoji Nagashima
The Japanese Journal of Gastroenterological Surgery | 2012
Yasuyuki Jin; Kimiatsu Hasuo; Takanobu Yamada; Insop Han; Yuta Kumazu; Yukio Maezawa; Yasushi Rino; Munetaka Masuda
Nippon Daicho Komonbyo Gakkai Zasshi | 2018
Takuo Watanabe; Keisuke Koumori; Yasuyuki Jin; Tomoko Sugiyama; Munetaka Masuda
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2014
Kentaro Hara; Yukio Maezawa; Masakatsu Numata; Yasuyuki Jin; Kimiatsu Hasuo; Yasushi Rino
Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2014
Yukio Maezawa; Kimiatsu Hasuo; Yasuyuki Jin; Kentarou Hara; Yasushi Rino; Munetaka Masuda