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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03348436
Other study ID # xierqdoctorSVT
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date January 1, 2017
Est. completion date March 1, 2020

Study information

Verified date March 2020
Source The Second Hospital of Hebei Medical University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study to investigate the effects of RF ablation on left atrial systolic function in patients with atrioventricular nodal reentrant tachycardia (AVNRT) and atrioventricular tachycardia (AVRT).


Description:

A total of 100 patients with persistent,in whom successful RF ablation of slow pathway or accessory pathway was performed. Patients with atrial fibrillation, structural heart disease, ventricular arrhythmias, impaired left ventricular systolic function or on antiarrhythmics were excluded. All the patients had echocardiographic study before ablation 、1 day and 1 months after ablation. Left atrial systolic function was assessed using atrial ejection force (AEF) according to Manning's formula (AEF = 0.5 x ρ x MA x A(2), r: blood density = 1.06 g/cm(3), MA: mitral orifice area [cm(2)], A: A wave velocity). The following left atrial dimensions were assessed: antero-posterior (LA-AP), infero-superior (LA-IS, long axis), medio-lateral (LA-ML, short axis). The correlations between AEF and electrophysiological parameters were analysed (VA - ventriculo-atrial conduction, VA/CL - tachycardia cycle length).


Recruitment information / eligibility

Status Completed
Enrollment 100
Est. completion date March 1, 2020
Est. primary completion date March 1, 2020
Accepts healthy volunteers No
Gender All
Age group 14 Years and older
Eligibility Inclusion Criteria:

Patients with paroxysmal supraventricular tachycardia,includes atrioventricular reentrant tachycardia and atrioventricular nodal reentrant tachycardia, Age is >14 years

Exclusion Criteria:

Atrial fibrillation, Atrial tachycardia, Structural heart disease, Ventricular arrhythmias, Patients with impaired left ventricular systolic function or on antiarrhythmics

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
radiofrequency ablation


Locations

Country Name City State
China The Second Hospital of Hebei Medical University Shijiazhuang Hebei

Sponsors (1)

Lead Sponsor Collaborator
Ruiqin xie

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary Left Atrial Function of postoperative radiofrequency ablation. 1 month
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