Atrioventricular Nodal Reentrant Tachycardia, Supraventricular Tachycardia
Conditions
Brief summary
The purpose of this study is to compare the safety and effectiveness of cryoablation and radiofrequency ablation in the treatment of the commonest kind of supraventricular tachycardia, namely atrioventricular nodal reentrant tachycardia. The study hypothesis is that cryoablation is non-inferior to radiofrequency.
Interventions
PROCEDUREcryoablation
cryoablation with an 8mm-tip catheter
PROCEDUREradiofrequency ablation
radiofrequency ablation with a 4mm-tip catheter
Sponsors
Princess Margaret Hospital, Hong Kong
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Patients who are referred for catheter ablation of supraventricular tachycardia and diagnosis of AVNRT is made by cardiac electrophysiology study
Exclusion criteria
1. Patients who aged less than 18 or over 80. 2. Patients who are pregnant. 3. Patients who cannot give informed consent. 4. Patients who are judged to have severe mental impairment and cannot report symptoms of palpitation during follow-up. 5. Patients who had previous AVNRT ablation before. 6. Patients who have comorbid congenital heart disease.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| treatment success rate, defined as proportion of treated patients with both atrioventricular block-free acute procedural success and mid-term success without recurrence at 6 months | 6 months after treatment |
Secondary
| Measure | Time frame |
|---|---|
| Treatment success rate at 12 months | 12 months after treatment |
Countries
China
Contacts
Primary ContactNgai-Yin Chan, MBBS
Outcome results
None listed