National Cerebral and Cardiovascular


Division of Arrhythmia


Overview of the Division

Arrhythmia means abnormal pulsating of the heart, including abnormally fast (tachycardia) and slow rhythms (bradycardia). An abnormal pulse that occurs suddenly causes palpitations or chest discomfort and can progress to a life-threatening, harmful type of arrhythmia in some cases.

Features of the Division

Our team treats patients with arrhythmia referred by specialists throughout Japan on both an outpatient and inpatient basis. The division has cutting-edge medical devices including a three-dimensional mapping system (CARTO and Ensite), a 128-multislice computed tomography (CT) scanner, and a magnetocardiography device (only two units are installed in Japan). The division plays a leading role in this field in Japan by vigorously diagnosing and treating cases of severe arrhythmia. In fiscal year 2012, we performed electrophysiologic studies and catheter ablation in 471 patients, pacemaker placement in 227 patients, implantable cardioverter-defibrillator surgery in 112 patients, and implantation of biventricular pacing devices in 60 patients. Recently, we have been providing advanced treatments such as ablation using a three-dimensional mapping system and resynchronization therapy for heart failure. Moreover, we perform internationally recognized genetic analysis for hereditary diseases with arrhythmia including long QT syndrome and Brugada syndrome. We also conduct basic and clinical research aggressively and publish our results internationally.


  • Certified for pacemaker implantation
  • Certified for implantable cardioverter-defibrillator surgery
  • Certified for biventricular pacemaker implantation
  • Certified for implantable cardioverter-defibrillator with biventricular pacing function implantation
  • Certified for removal of transvenous electrodes (using a laser sheath)

last updated : 2021/10/01

Site setting