Centers & Services

Department of Cardiovascular Medicine

What is Cardiovascular Medicine?

The Department of Cardiovascular Medicine provides diagnosis and care for patients with diseases related to the heart, blood vessels (large and peripheral vessels), and high blood pressure. It specializes in intractable diseases such as arrhythmia, pulmonary hypertension, and ischemic heart diseases.

Our Physicians

Director, Cardiovascular Medicine Department

Hiroshi Ito, Professor
[General cardiovascular diseases, ischemia, and heart failure]


Hiroshi Morita Professor
(Advanced cardiovascular therapeutics course)
[General cardiovascular diseases, arrhythmia]
Kazufumi Nakamura Associate professor [General cardiovascular diseases, cardiomyopathy, heart failure, hereditary arrhythmia]
Teiji Akagi Associate professor [General cardiovascular diseases, Adult congenital heart disease]
Nobuhiro Nishii Assistant professor [General cardiovascular diseases, arrhythmia, implantable device pacemaker]
Toru Miyoshi Assistant professor
(Advanced cardiovascular therapeutics course)
[General cardiovascular diseases, arterial sclerosis, hypertension, vascular medicine]
Atsuyuki Watanabe Assistant professor
(IVR center)
[General cardiovascular diseases, arrhythmia, catheter ablation]
Makiko Taniyama Assistant professor
(Department of General Medicine; Tamano Division)
[General cardiovascular diseases, ischemic heart diseases]
Masashi Yoshida Assistant professor
(Chronic kidney disease (CKD), Chronic vascular disease (CVD) area cooperation, cardio-renal vascular diseases, pathophysiology)
[General cardiovascular diseases, heart failure, regenerative medicine]
Koji Nakagawa Assistant professor [General cardiovascular diseases, arrhythmia, catheter ablation]
Satoshi Akagi Assistant professor [General cardiovascular diseases, pulmonary hypertension]
Norihisa Toh Assistant professor [General cardiovascular diseases, Adult congenital heart disease]
Yoichi Takaya Assistant professor [General cardiovascular diseases, Structural heart disease]
Toshihiro Sarashina Assistant professor [General cardiovascular diseases, pulmonary hypertension]

*Specialty shown in [ ]

Weekly schedule of outpatient physicians

  Monday Tuseday Wednesday Thursday Friday
Outpatient physicians Hiroshi Ito Toru Miyoshi Koji Nakagawa Yoichi Takaya Hironobu Toda Kazufumi Nakamura Teiji Akagi Toru Miyoshi Satoshi Akagi Norihisa Toh Hiroshi Morita Kazufumi Nakamura Nobuhiro Nishii Norihisa Toh Hiroshi Ito Hiroshi Morita Teiji Akagi Hironobu Toda Takashi Miki Atsuyuki Watanabe Masashi Yoshida Kazuhiro Osawa
Clinical sections available by day of the week General cardiovascular diseases, arrhythmia,heart failure, ischemic heart disease Adult congenital heart disease Peripheral artery disease General cardiovascular diseases, Adult congenital heart disease arrhythmia, heart failure, ischemic heart disease, pulmonary hypertension, General cardiovascular diseases, heart failure, ischemic heart disease, cardiomyopathy, arrhythmia, pacemaker outpatient, ICD outpatient General cardiovascular diseases, arrhythmia, Adult congenital heart disease heart failure, ischemic heart disease General cardiovascular diseases, arrhythmia, ischemic heart disease, sleep apnea

Treatment system

Outpatient clinic service: 3 - 6 physicians provide outpatient care each morning and afternoon.
Hospital admission service: 18 cardiovascular specialist and specialist trainees provide inpatient care on a round-the-clock basis.

Treatment policy

We always try to gain an appropriate understanding of clinical conditions and provide quick diagnoses and treatments.
We also provide round-the-clock emergency care.
We always try to provide careful medical care by several specialist physicians.


Emphases are placed not only on ischemic heart diseases (angina and cardiac infraction), but also on various types of irregular heartbeat, pulmonary hypertension, severe heart failure, sleep apnea, hypertension, arteriosclerosis obliterans, and general cardiovascular diseases.

Scope of Target diseases

  • Supraventricular tachycardia, atrial fibrillation
  • Ventricular tachycardia, ventricular fibrillation
  • Bradyarrhythmia
  • Pulmonary hypertension, pulmonary thromboembolism
  • Dilated cardiomyopathy, hypertrophic cardiomyopathy
  • Ischemic heart disease
  • Adult congenital heart disease
  • Acute and old myocardial infarction
  • Sleep apnea syndrome
  • Peripheral artery disease, Renal vascular hypertension

Description of medical care

Specifically addressing three main diseases of ischemic heart disease, heart failure, and arrhythmic diseases in the cardiovascular area, we provide care for patients with general cardiovascular diseases including hypertension and vascular diseases. Additionally, to fulfill our functions as a university hospital, we actively provide care for rare diseases.
For intractable irregular arrhythmic diseases, we provide optimal care to each patient from using non-pharmacological therapies with catheter ablation, an implanted defibrillator and pacemaker and pharmacological therapies based on occurrence mechanism. Catheter ablation is applied not only to WPW syndrome, to which it has been done before, but also to various diseases including atrial flutter and ventricular tachycardia to produce our high rate of success: more than 90%. Furthermore, we have used the procedure for selected cases of atrial fibrillation since 1998.
For patients with heart failure, we provide active and careful pharmacological treatment based on large-scale clinical trial conducted in recent years. Additionally, we give biventricular pacing therapy to patients with end-stage heart failure. For ischemic heart diseases and severe heart failure, we conduct coronary-arterioplasty and stenting on emergency patients in HCU on a round-the-clock basis in cooperation with the emergency department in this hospital. We also actively provide care using drug dissolutive stent, which is known to have a great effect on preventing restenosis after stenting.
For pulmonary hypertension, lung transplantation from a living or deceased donor is conducted at this hospital's Department of Tumors and Chest Surgery (formerly the Second Surgery Department). We actively perform treatments such as oral prostacyclin drug therapy and in-home prostacyclin continuous infusion therapy.
We have been providing outpatient care every day from Monday through Friday. Furthermore, we make arrangements to do examinations, which are available during the day, on the same day where possible.
Revisiting outpatients must make an appointment with the outpatient clinic service.
Furthermore, round-the-clock care is given to emergency patients in cooperation with the emergency department.
While cardiac catheter examination and pharmacological stress tests are conducted on inpatients, the following examinations are also conducted on an outpatient basis: electrocardiogram, exercise electrocardiogram, 24-hour electrocardiogram (Holter electrocardiogram), signal-averaged electrocardiogram, cardiac ultrasonography, and cardiac nuclear medicine test (myocardial scintigram).

Highly advanced/special medical treatments

Technology covered by health insurance programs

  • Catheter ablation (particularly for severe ventricular arrhythmia)

Main methods for testing and explanation

  • Electrophysiological examinations/diagnosis and treatment of arrhythmia
  • 3D echocardiographic examination / non-invasive examination of heart function
  • Vascular endothelial function, ABI / to ascertain the severity of arteriosclerosis
  • Coronary artery CT, heart MRI / diagnosis of heart diseases
  • Heart nuclear medicine examination / diagnosis of ischemic heart diseases
  • Polysomnograph / diagnosis and therapeutic decision of sleep apnea

Main testing methods and medical equipment

Cardiac catheter tests

Coronary arteriography, cardiac function test

Coronary arteriography is necessary for the evaluation and choice of treatment of ischemic heart diseases and underlying diseases of heart failure and irregular heartbeat. Detailed analyses of left ventricular function are conducted from simultaneous records of ventricular stress and volume to use it for evaluation of treatment. Physicians of this department are available on Monday, Wednesday, Thursday, and Friday.

Cardiac electrophysiological tests

Catheter ablation

Examinations must be done to analyze the occurrence mechanism and to choose treatments of arrhythmia.
Simultaneous electric potential records on several points facilitate detailed analyses of arrhythmia and precise selection of ablation regions. The physicians in this department conduct them in the cardiac catheter room on Monday, Wednesday, Thursday, and Friday.

Cardiac nuclear medicine tests

These tests are necessary to evaluate myocardial blood flow and viable myocardium, as well as cardiac sympathetic nerve function. Combined with cardiac synchronization method, evaluation of cardiac function is conducted simultaneously.

Body surface electrocardiographic mapping, body surface miniature potential record

With body surface electrocardiographic mapping, electrocardiograms from several points on body surface can be recorded to diagnose potential abnormal regions on a spatial basis. Furthermore, with the body surface miniature potential record, miniature potentials to cause arrhythmia are added and amplified to diagnose the presence and absence of underlying arrhythmia.

Echocardiogram examinations

Conducting transthoracic and transesophageal echocardiogram on an outpatient basis, we strive to diagnose atrial thrombus complicated with cardiovascular diseases and to prevent brain embolism and acute atrial embolism.

Coronary diseases care unit (CCU)

In the unit, we provide intensive care such as ventricular assist and artificial respiration. The unit facilitates 24-hour monitoring of respiratory, heartbeat, and blood pressure, improving the curative influence on severe cardiovascular diseases.

Exercise stress test

24-hour electrocardiogram examination

RHYTHMIA HD(TM) Mapping System
RHYTHMIA HDTM Mapping System
PCI(Percutaneous Coronary Intervention)
PCI(Percutaneous Coronary Intervention)