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The V3R/V7 index: A Novel Electrocardiographic Criterion for Differentiating Left from Right Ventricular Outflow Tract Arrhythmias Origins

The V3R/V7 index: A Novel Electrocardiographic Criterion for Differentiating Left from Right Ventricular Outflow Tract Arrhythmias Origins

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1800014781
Enrollment
Unknown
Registered
2018-02-05
Start date
2015-09-01
Completion date
Unknown
Last updated
2018-02-12

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

Conditions

Ventricular Outflow Tract Arrhythmias

Interventions

Gold Standard:The location of the foci was determined by the site of successful ablation
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index,&#32
V2S/V3R,&#32
V2&#32
transition&#32
ratio&#32
and&#32
the&#32
TZ&#32
index

Sponsors

The First Affiliated Hospital of Nanjing Medical University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Consecutive patients undergoing clinically indicated OT-VAs ablation were recruited

Exclusion criteria

Exclusion criteria: Patients with coronary artery disease, structural heart disease, pre-existing bundle branch block during sinus rhythm (SR), paced rhythm were excluded.

Design outcomes

Primary

MeasureTime frame
V3R/V7 index;—

Secondary

MeasureTime frame
V2S/V3R;V2 transition ratio;TZ index;—

Countries

China

Contacts

Public ContactBing Yang

The First Affiliated Hospital of Nanjing Medical University

chdnjmu01@163.com+86 13951001793

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026