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大学院医学研究科 教員紹介 西　宏之

  • 領　域　　：　心臓血管外科学

  • 教員氏名　：　西　宏之（ニシ ヒロユキ）

  • 取得学位　：　博士（医学）

  • 身分・役職：　外科学系心臓血管外科学 教授

  • 専門分野　：　心臓血管外科学

【研究業績】
低侵襲心臓手術(MICS)の安全な普及に向けた研究、僧帽弁、三尖弁形成術の術後弁輪動態の研究、大動脈内視鏡を用いた大動脈解離に対する治療、開心術後肝不全のメカニズムの解明、心臓血管外科教育システムの構築

【所属学会】
日本外科学会(専門医、指導医)。日本心臓血管外科学会(評議員、国際会員)、日本胸部外科学会(評議員、正会員、認定医)、日本循環器学会(専門医)、日本血管外科学会
日本冠疾患学会(理事、FJCA)、日本冠動脈外科学会(評議員)、日本人工臓器学会(評議員)、日本低侵襲心臓手術学会(代議員)、日本弁膜症学会、日本内視鏡外科学会
関西胸部外科学会(評議員)、International Society of Minimally Invasive Cardiac Surgery、Asian Society of cardiovascular Surgery

 

研究内容

①　僧帽弁形成術の術式と遠隔期成績の検討
②　大動脈内視鏡を用いた研究
③　心臓血管外科における新しい教育システムの構築

主な論文

  • Nishi H, Saito T, Nakagawa T, Iha K, Sekiya N, Masai T, Hata M, Yamauchi T, Miyagawa S.　Safety and efficacy of simple system for artificial chordae length adjustment in patients undergoing minimally invasive mitral valve repair.　Gen Thorac Cardiovasc Surg. 2026 Jan 5. doi: 10.1007/s11748-025-02250-

  • Nishi H, Kitahara M, Taguchi T, Yoshitatsu M.　Diagnosis of Type IV Endoleak After Endovascular Aneurysm Repair Using Visualization With Novel Software.　Cureus. 2024 May 17;16(5):e60527. doi: 10.7759/cureus.60527.

  • Nishi H, Yokoyama H, Yaku H, Doi K, Nishimura Y, Abe K, Tsukui H, Tabata M, Okamoto K, Park YK, Matsuda H.　Efficacy of simulation training for beating heart coronary anastomosis using BEAT  +  YOUCAN simulator.　Asian Cardiovasc Thorac Ann. 2022 Jul;30(6):661-668. doi: 10.1177/02184923211060214.

  • Nishi H, Kodama K.　Author's reply: Can non　obstructive general angioscopy predict and aortic dissection before an attack?　J Cardiol. 2021 Jan;77(1):106-108

  • Nishi H, Higuchi Y, Takahashi T, Domae K, Inoguchi K, Kawasumi R, Hamanaka Y, Komatsu S, Hirayama A, Kodama K. Aortic angioscopy assisted thoracic endovascular repair for chronic type B aortic dissection. J Cardiol. 2020 Mar 12:S0914-5087(20)30067-8.

  • Nishi H. Advent of New perioperative care for fluid management after cardiovascular surgery: A review of current evidence. J Cardiol. 2020 Jun;75(6):606-613.

  • Nishi H, Miyata H, Motomura N, Takahashi T, Sawa Y, Takamoto S; Japan Cardiovascular Surgery Database Organization. Which Patients Are Candidates for Minimally Invasive Mitral Valve Surgery?　- Establishment of Risk Calculators Using National Clinical Database. Circ J. 2019 ;83: 1674-1681.

  • Nishi H, Toda K, Miyagawa S, Yoshikawa Y, Fukushima S, Yoshioka D, Sawa Y. Annular dynamics of memo3D annuloplasty ring evaluated by 3D transesophageal echocardiography. Gen Thorac Cardiovasc Surg. 66: 214-219: .2018

  • Nishi H, Toda K, Miyagawa S, Yoshikawa Y, Fukushima S, Yoshioka D, Saito T, Sawa Y. Secondary abdominal compartment syndrome required decompression laparotomy during minimally invasive mitral valve repair. Surg Case Rep. 2:3:.2016

  • Nishi H, Toda K, Miyagawa S, Yoshikawa Y, Fukushima S, Kawamura M, Yoshioka D, Saito T, Ueno T, Kuratani T, Sawa Y. Annular dynamics after mitral valve repair with different prosthetic rings: A real-time three-dimensional transesophageal echocardiography study. Surg Today. 46:1083-90: 2016 S

  • Nishi H, Toda K, Miyagawa S, Yoshikawa Y, Fukushima S, Kawamura M, Yoshioka D, Saito T, Ueno T, Kuratani T, Sawa Y. Effects of tolvaptan in the early postoperative stage after heart valve surgery: results of the STAR (Study of Tolvaptan for fluid retention AfteR valve surgery) trial. Surg Today. 45:1542-51: 2015

  • Nishi H, Miyata H, Motomura N, Toda K, Miyagawa S, Sawa Y, Takamoto S. Propensity-matched analysis of minimally invasive mitral valve repair using a nationwide surgical database. Surg Today. 45:1144-52: 2015

  • Nishi H, Toda K, Miyagawa S, Yoshikawa Y, Fukushima S, Kawamura M, Yoshioka D, Saito T, Ueno T, Kuratani T, Sawa Y. Tricuspid annular dynamics before and after tricuspid annuloplasty- three-dimensional transesophageal echocardiography. Circ J. 79:873-9:2015

  • Nishi H, Toda K, Miyagawa S, Yoshikawa Y, Fukushima S, Kawamura M, Saito T, Yoshioka D, Daimon T, Sawa Y. Novel method of evaluating liver stiffness using transient elastography to evaluate perioperative status in severe heart failure. Circ J. 79:391-7: 2015

  • Nishi H, Toda K, Miyagawa S, Yoshikawa Y, Fukushima S, Saito S, Yoshioka D, Saito T, Ueno T, Sakaguchi T, Sawa Y. Initial experience in Japan with HeartWare ventricular assist system. J Artif Organs. 17:149-56, 2014

  • Nishi H, Sakaguchi T, Miyagawa S, Yoshikawa Y, Fukushima S, Yoshioka D, Saito T, Toda K, Sawa Y. Optimal coronary artery bypass grafting strategy for acute coronary syndrome. Gen Thorac Cardiovasc Surg. 62:357-363.

  • Nishi H, Sakaguchi T, Miyagawa S, Yoshikawa Y, Fukushima S, Yoshioka D, Ueno T, Kuratani T, Sawa Y. Factors affecting a dilated ascending aorta in patients with bicuspid aortic valve: the relevance of valve anatomy, body size and age. Surg Today. 44:1483-1489, 2014

  • Nishi H, Sakaguchi T, Miyagawa S, Yoshikawa Y, Fukushima S, Saito S, Ueno T, Kuratani T, Sawa Y. Impact of microRNA expression in human atrial tissue in patients with atrial fibrillation undergoing cardiac surgery. PLoS One.;8: e73397, 2013

  • Nishi H, Toda K, Miyagawa S, Yoshikawa Y, Fukushima S, Yoshioka D, Saito T, Saito S, Sakaguchi T, Ueno T, Kuratani T, Sawa Y. Prediction of outcome in patients with liver dysfunction after left ventricular assist device implantation. J Artif Organs.;16:404-410, 2013

  • Nishi H, Sakaguchi T, Miyagawa S, Yoshikawa Y, Fukushima S, Saito S, Ueno T, Kuratani T, Sawa Y. Atrial fibrillation occurring early after cardiovascular surgery: impact of the surgical procedure. Surg Today. 43:1134-1139, 2013

  • Nishi H, Sakaguchi T, Miyagawa S, Yoshikawa Y, Fukushima S, Sumitsuji S, Sawa Y. Failed depiction of patent bypass graft due to presence of large lateral costal artery. Ann Thorac Cardiovasc Surg. 18:275-277, 2012

  • Nishi H, Sakaguchi T, Miyagawa S, Yoshikawa Y, Fukushima S, Saito S, Ueno T, Kuratani T, Sawa Y. Efficacy of landiolol hydrochloride for atrial fibrillation after open heart surgery. Heart Vessels. 28:490-496, 2012

  • Nishi H, Sakaguchi T, Miyagawa S, Yoshikawa Y, Fukushima S, Saito S, Ueno T, Kuratani T, Sawa Y. Frequency, risk factors and prognosis of postoperative hyperbilirubinemia after heart valve surgery. Cardiology.122:12-19, 2012

  • Nishi H, Sakaguchi T, Miyagawa S, Yoshikawa Y, Sawa Y. Cardiac surgery in patients with Gilbert's syndrome. J Card Surg. 27:60-61, 2012

  • Nishi H, Mitsuno M, Tanaka H, Ryomoto M, Fukui S, Miyamoto Y. Spinal cord injury in patients undergoing total arch replacement: a cautionary note for use of the long elephant technique. J Thorac Cardiovasc Surg. 142:1084-1089, 2011

  • Nishi H, Mitsuno M, Tanaka H, Ryomoto M, Fukui S, Miyamoto Y. Decreasing sternum microcirculation after harvesting the internal thoracic artery.  Eur J Cardiothorac Surg. 40:240-244, 2011

  • Nishi H, Mitsuno M, Yamamura M, Tanaka H, Ryomoto M, Fukui S, Yoshioka Y, Takanashi S, Miyamoto Y. Safe approach for redo coronary artery bypass grafting--preventing injury to the patent graft to the left anterior descending artery. Ann Thorac Cardiovasc Surg.16:253-258,2010.

  • Nishi H, Mitsuno M, Tanaka H, Ryomoto M, Fukui S, Miyamoto Y. Who needs preoperative routine chest computed tomography for prevention of stroke in cardiac surgery?  Interact Cardiovasc Thorac Surg.11:30-33, 2010

  • Nishi H., Mitsuno, M., Tanaka, H., Ryomoto, M., Fukui, S., Miyamoto, Y. High anomalous origin of the right coronary artery associated with aortic stenosis: A word of caution.   Ann. Thorac. Surg. 89: 961-963, 2010

  • Nishi H., Mitsuno, M., Tanaka, H., Ryomoto, M., Fukui, S., Miyamoto, Y. Late reoperations after repair of acute type A aortic dissection.  J Card Surg. 25: 208-213, 2010

  • Nishi H., Mitsuno, M., Ryomoto, M., Miyamoto, Y. Comprehensive approach for clamping severely calcified ascending aorta using computed tomography. Interact Cardiovasc Thorac Surg. 10: 18-20, 2010

  • Nishi H., Mitsuno,M., Ryomoto, M., Hao, H., Hirota, S. and Miyamoto, Y. Giant cardiac lipoma in the ventricular septum involving the tricuspid valve. Ann. Thorac. Surg. 88: 1337-1339, 2009

  • Nishi H., Mitsuno, M., Tanaka, H., Ryomoto, M., Fukui, S., Miyamoto, Y. Coronary revascularization via median sternotomy after presternal jejunum reconstruction for esophageal carcinoma. Ann. Thorac. Surg. 88: 667-669, 2009

  • Nishi H, Takahashi T, Ichikawa H, Matsumiya G, Matsuda S, Sawa Y.  Prediction of postoperative hepatic dysfunction after cardiac surgery in patients with chronic congestive heart failure, Gen Thorac Cardiovasc Surg, 57: 357-362, 2009

  • Nishi H, Mitsuno M, Ryomoto M, Miyamoto Y. Severe mitral regurgitation due to cardiac amyloidosis--a rare reason for ruptured chordae. Interact Cardiovasc Thorac Surg. 2008 Dec;7(6):1199-200.

  • Nishi H, Takahashi T, Matsumiya G, Takano H, Ichikawa H, Miyagawa S, Sawa Y.  Preoperative assessment of congestive liver dysfunction using Technetium-99m Galactosyl Human Serum Albumin liver scintigraphy in patients with severe valvular heart disease, Surg. Today., 37: 564-569, 2007

  • Nishi H, Miyamoto S, Takanashi S, Minamimura H, Ishikawa T, Kayo Y, Shimizu Y. Optimal method of coronary endarterectomy for diffusely diseased coronary arteries. Ann Thorac Surg. 79: 846-52, 2005

  • Nishi H, Miyamoto S, Minamimura H, Ishikawa T, Kayo Y, Shimizu Y.  Pseudoaneurysm of the dorsalis pedis artery causing neurological deficit. Ann Vasc Surg. 18: 487-9, 2004

  • Nishi H, Miyamoto S, Minamimura H, Ishikawa T, Kato Y, Arimoto H, Ohue K, Shimizu Y.  Extensive Thoracoabdominal Aortic Aneurysm Repair Using Deep Hypothermic Bypass and Circulatory Arrest.  Asian Cardiovasc Thorac Ann, 12: 69-74, 2004

  • Nishi H, Miyamoto S, Takanashi S, Minamimura H, Ishikawa T, Shimizu Y.  Complete revascularization in patients with severe left ventricular dysfunction.  Annals of Thoracic and Cardiovascular Surgery 9: 111-6, 2003 　 Nishi H, Miyamoto S, Minamimura H, Ishikawa T, Katoh Y, Arimoto H, Ohue K, Shimizu Y. Descending aorta-abdominal aortic graft bypass for atypical coarctation due to Takayasu’s arteritis: A case report.  Osaka City Medical Journal 48:123-7, 2002

  • Nishi H, Nishigaki, K, Kume, Y, Miyamoto K. In situ pericardium repair for pulmonary venous obstruction after repair of total anomalous pulmonary venous connection.  The Japanese Journal of Thoracic and Cardiovascular Surgery 50: 338-40, 2002

  • Nishi H, Kido T, Yamanishi H, Nakahara M, Nakao K, Tsujimoto M. Endoscopic resection of a pelvic neurogenic tumor through the retroperitoneal approach.  Surgical Endoscopy 14 :767-8,2000

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