Cardiac Surgery Department

Slide 1

About Us

With about 400 cardiac and thoracic great vessel surgeries performed annually, the Department of Cardiac Surgery is one of the leading institutions of Japan. Minimally invasive techniques such as off-pump bypass surgery without using a heart-lung machine have been applied to many patients.


Outpatient services

Make an appointment

【Call Center】10:00-17:00(Week Days)


International Patients ※A formal referral via a coordinator or facilitator is required for international patients. E-mail Fax :+81-3-5800-8728

Outpatient Services »


Numbers of major operations and treatments performed (total number of cardiovascular surgeries: 344 in 2012) Name of operation/treatment Number* 1 Coronary artery bypass grafting 75 2 Valve replacement and formation 79 3 Surgery for thoracic aortic aneurysms and dissection 45 4 Root replacement with allograft aortic valves 4 5 Auxiliary artificial heart installation and removal 29 6 Valve-sparing aortic root replacement 5 7 Heart transplantation 6 8 Stent grafting 18 9 Fontan and Glenn procedures 18 10 Norwood procedures 5 (January to December, 2012) *including complex surgical procedures

Our policy

Treatment plans are determined at clinical conferences based on detailed examination and discussion.

Joint conferences are also held regularly with the Department of Cardiovascular Medicine and/or the Department of Pediatrics to discuss cases referred by other institutions.

To refer a patient »

Medical services

Prescheduled surgeries are performed three days each week along with emergency surgeries.

The department consists of three teams specializing in different areas: adult heart disease (ischemic heat disease, valvular heart disease, arrhythmia disorders, severe heart failure), aortic disease (thoracic aneurysm, aortic dissection, etc.); and congenital heart disease.

Outpatient services are provided every week day.

Areas of expertise


  1. Ischemic heart disease
  2. Valvular heart disease
  3. Severe heart failure (such as idiopathic and ischemic cardiomyopathies)
  4. Infective endocarditis and aneurysms
  5. Thoracic aortic aneurysms and dissection
  6. Congenital heart diseases (neonate, infant, child and adult)
  7. Complex cardiac anomalies, such as hypoplastic left heart syndrome

Treatment methods

  1. Off-pump or beating-heart coronary artery bypass grafting
  2. Mitral valvuloplasty and valve-sparing aortic root replacement
  3. Cardiac transplantation and auxiliary artificial heart
  4. Curative treatment of infection, using allograft heart valves and blood vessels
  5. Arch replacement and low-risk surgical procedures for extensive aortic aneurysms
  6. Norwood and Fontan procedures

In our department,  about 90% of patients requiring coronary-artery bypass surgery undergo off-pump coronary artery bypass (OPCAB) surgery. In almost all patients with mitral insufficiency, valvuloplasty is performed.

The Maze procedure is also frequently performed to treat arterial fibrillation. Our department is one of the departments in Japan where valve-sparing aortic root replacement is most frequently performed to treat annuloaortic ectasia.

Graft replacement for aortic arch and thoracoabdominal aortic aneurysm that protects the brain and spinal cord are also performed in many patients. Using these procedures, highly successful surgical results have been achieved in patients aged 75 and older as well as in serious cases with complications.

As for congenital heart disease, many surgical procedures such as the Norwood procedure, the Jatene procedure, and the Fontan procedure have been performed successfully for complex heart malformations. Minimally invasive surgery that takes appearance into consideration and surgery without blood transfusion are also performed.

Our department has been approved as a heart transplant facility and has performed heart transplants for 59 patients (48 in Japan and 10 at overseas facilities) as well as ventricular assist device (VAD) surgery. We have the most successful VAD implantation record in Japan.

For Doctors and Medical Institutions

Residency Program

研修内容 ◆ 研修医1年目臨床研修指定病院の中で最も多くの心臓外科症例を有する施設の1つです。研修期間は3ヶ月または1.5ヶ月を選択することが可能です。成人心疾患、大動脈疾患、重症心不全、先天性心疾患の各チームで、各種疾患の病態診断、呼吸・循環管理を学ぶことができます。各チームとも常に上級医・指導医...


山内 治雄
TEL: 03-3815-5411 ext. 30394
FAX: 03-5684-3989


To refer a patient



Patient referral