Ventricular premature contractions originating from left ventricular papillary muscle
Conditions
Interventions
Experimental group:Advisor HD Grid catheter was used for mapping and diagnosis, and TCSE catheter was used for radiofrequency ablation.
Control group:Using TCSE catheter alone for mapping and radiofrequency ablation.
Sponsors
Sun Yat sen Memorial Hospital of Sun Yat sen University
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. 18-80 years old; 2.The ECG in lead 12 showed that the patients with monomorphic left ventricular papillary muscle premature contractions, >=8 000 cells/24 h or >= 400 cells/h, were monomorphic early, with different degrees of palpitations, chest tightness and other symptoms. 3. All of them stopped taking anti-arrhythmic drugs for more than 5 half-lives before radiofrequency ablation, and stopped taking amiodarone for more than 4 weeks.
Exclusion criteria
Exclusion criteria: Electrocardiogram, echocardiography, chest X-ray and laboratory tests (myocardial injury markers, electrolytes, etc.) show structural heart disease (such as cardiomyopathy, congenital heart disease, myocarditis, etc.), hereditary arrhythmia syndrome and hyperthyroidism and other systemic diseases.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Success rate 12 months after ablation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Immediate success rate of ablation;Single ablation success rate;Mapping time;The earliest excitation time of target potential;Number of ablation points;Ablation time;Fluoroscopy time;Procedural time; | — |
Countries
China
Contacts
Public ContactXie Shuanglun
Sun Yat sen Memorial Hospital of Sun Yat sen University
Outcome results
None listed