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IMS Katsushika Heart Center

Conditions Treated
Cardiovascular Disease (Ischemic Heart Disease, Valvular Disease, Aortic Disease).

Treatment Methods (Treatment of Cardiac or Aortic Disease in High-Risk Patients Such as the Elderly or Those with Chronic Renal Failure, etc.)

The success or failure of cardiovascular surgery has a major effect on a patient’s prognosis. At our center, we start with an accurate diagnosis of patients’ conditions and symptoms, after which some of Japan’s best cardiovascular surgeons perform the most appropriate surgery for each patients.

(1) Ischemic Heart Disease

Coronary artery bypass grafting (CABG) is conventionally performed under cardiac arrest, with the patient on an artificial heart-lung machine, but this method may not be safe for elderly patients who also have disorders of several other organs. At our center, we avoid using an artificial heart-lung machine to reduce the physical burden on patients and enable them to return to normal life more quickly after surgery, instead performing CABG while the heart is still beating in a procedure called off-pump CABG (OPCABG). We also use several arterial grafts from vessels such as the internal thoracic artery, which maintain a high patency rate long-term, for bypass grafting to ensure complete reconstruction of blood flow. For patients who meet certain conditions, we can also perform minimally invasive direct coronary artery bypass (MIDCAB).

(2) Valvular Disease

We offer an exceptionally wide range of treatment options, from orthodox artificial valve replacement with mechanical or biological valves to specialist procedures including mitral valvuloplasty for mitral regurgitation, reimplantation for aortic regurgitation with dilation of the aortic root, the Ross procedure using pulmonary autograft for young patients with aortic valve disease, and apico-aortic conduit surgery for aortic valve stenosis with porcelain aorta, which is common in elderly patients and those with chronic renal failure. Atrial fibrillation, which frequently occurs in combination with mitral valve disease, can be treated simultaneously by performing the Maze procedure to restore sinus rhythm, without the need for anticoagulant therapy. For patients who meet certain conditions, this surgery can be performed via a small incision (minimally invasive cardiac surgery, MICS).

(3) Aortic Disease

We perform standard artificial vessel replacement for true and dissecting aneurysms of the aortic root, ascending aorta, aortic arch, thoracic descending aorta, thoracoabdominal aorta, and abdominal aorta, as well as stent grafting (EVAR, TEVAR) to treat aneurysms of the thoracic descending aorta or abdominal aorta.

Features of Our Center

Our center was established in 2009 as a specialist hospital providing open surgery for adult cardiovascular diseases. Even with a capacity of only 50 beds, our center performs over 500 catheterization procedures and 350–400 cardiac and thoracic aortic surgeries a year, making it one of Japan’s leading specialist cardiovascular hospitals. Located in an area with a large elderly population, our center is also famous for accepting difficult cases for cardiac surgery referred from other hospitals, such as dialysis patients and those who require repeated surgery. One of the main reasons for this is our very high doctor-patient ratio, with a staff of 22 top-ranking specialist (11 cardiovascular surgeons, 7 cardiologists, and 4 cardiac anesthesiologists) treating a total of only 50 patients at one time.

Treatment Results

Cardiovascular Surgery 2009
(10 months from March)
2010 2011
Coronary Artery Bypass 166 212 188
Thoracic Aortic Aneurysm 64 101 78
Valve Replacement/Valvuloplasty 130 134 159
Abdominal Aortic Aneurysm 19 25 25
Stent Grafting (Thoracic/Abdominal) 22 52 61
(10 months from March)
2010 2011
CAG 1,039
(233 emergencies)
(303 emergencies)
(325 emergencies)
PCI 463
(171 emergencies)
(209 emergencies)
(220 emergencies)
Ablation 41 105 121

A Message to International Patients from Our Center

Dr. Masayoshi Sakakibara
Dr. Masayoshi Sakakibara

The increasing number of elderly patients with cardiovascular disease requiring surgical treatment is a worldwide trend. In Japan, where the population is aging faster than any other nation worldwide, cardiovascular surgeons have been dealing with surgery in elderly patients for many years, and have worked hard to improve treatment outcomes. At our center, we are actively accepting such patients for treatment by our expert medical teams, which are centered on cardiovascular surgeons possessing a high level of skills backed up by a wealth of experience. As a private center, we are capable of responding swiftly and flexibly to patients’ requests. Some of our doctors have studied in the United States and Canada and our nursing staff includes nurses from China, providing an international atmosphere for medical care. Even if you have been told that surgery is difficult in your home country, please consult us before giving up hope.

Overview of the Treatment Schedule (Model Case: Off-Pump Coronary Artery Bypass)

If you have received a confirmed diagnosis in your home country, in principle you can arrive in Japan the day before surgery as long as you send coronary angiography images in advance. If you require tests to diagnose ischemic heart disease or investigate indications for treatment, you will undergo a CT scan and catheter tests after arriving in Japan for use in reaching a confirmed diagnosis, and will be treated after the appropriate treatment has been determined.

Overview of the Treatment Schedule


External View of Our Center Operating Room Cardiac Catheterization Room Intensive Care Unit (ICU)
External View of Our Center Operating Room Cardiac Catheterization Room Intensive Care Unit (ICU)
Hospital Contact Information
Phone (for international visitors):

(Mongolian, Chinese, and Korean are available)
Hospital Direct Tel
Phone (for international visitors):

Email: gscenter@ims.gr.jp
Established 2009
Clinical Departments
Cardiovascular Surgery, Cardiovascular Medicine, Anesthesiology
Payment Methods
Cash, Credit Card (VISA, JCB, MasterCard), Debit Card
3-30-1 Horikiri, Katsushika-ku, Tokyo 124-0006


9 minutes on foot
from Keisei Line
Horikiri-Shobuen Station
40 minutes
from Tokyo International Airport
(Haneda Airport) by car