A study of novel unipolar electrogram criteria for patients with tachycardia-induced cardiomyopathy by means of electroanatomical mapping

A study of novel unipolar electrogram criteria for patients with tachycardia-induced cardiomyopathy by means of electroanatomical mapping - A study of novel unipolar electrogram criteria for patients with tachycardia-induced cardiomyopathy by means of electroanatomical mapping

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000045015

Enrollment

Registered

2021-07-30

Start date

2021-08-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tachycardia-induced cardiomyopathy

Interventions

Ventricular mapping during catheter ablation for patients with atrial fibrillation and atrial tachycardia with preserved left ventricular contractility. Ventricular mapping during catheter ablation fo

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Study group Age 18 years or older Patients with persistent atrial fibrillation or atrial tachycardia (confirmed within 2 weeks of inclusion) Left ventricular ejection fraction (LVEF) calculated by Modified Simpson method on transthoracic echocardiography is less than 40%. Patients with unexplained systolic dysfunction not related to coronary artery disease Patients who have an indication for atrial fibrillation or atrial tachycardia ablation and wish to undergo ablation in the usual course of treatment. Control group Age 18 years or older Persistent atrial fibrillation or atrial tachycardia (confirmed within 2 weeks of inclusion) Left ventricular ejection fraction (LVEF) of 55% or higher Patients who have an indication for atrial fibrillation or atrial tachycardia ablation and wish to undergo ablation.

Exclusion criteria

Exclusion criteria: Cases that cannot agree to participate in the study

Design outcomes

Primary

Measure	Time frame
Measure ventricular unipolar voltage wave height, area of abnormal potential (<8.27mV) and percentage of total	—

Countries

Japan

Contacts

Public ContactDaisuke Togashi

St. marianna university cardiology

daisuke.togashi@marianna-u.ac.jp044-977-8111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026