Atrial fibrillation originated from superior vena cava and its ablation
- VernacularTitle:起源于上腔静脉的心房颤动的电生理特点及射频消融
- Author:
Deyong LONG
;
Jianzeng DONG
;
Changsheng MA
- Publication Type:Journal Article
- Keywords:
Atrial fibrillation;
Catheter ablation;
Vena cava,superior
- From:
Chinese Journal of Interventional Cardiology
1996;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical and electrophysiological characters of atrial fibrillation(AF) originated from superior vena cava(SVC).Methods Patients with SVC-originated AF admitted into our centre during the past 2 years were retrospectively investigated,and their clinical and electrophysiological characters were systematically analyzed.Results The AF in 16 patients(M/F=12/4 cases,mean age of 53.4?10.6 years old,paroxysmal/persistent AF=11/5 cases) were confirmed to be originated from SVC,who contributed to 2.9%(16/545) of total cases underwent AF ablation during the same period.Among the 16 cases,2 patients were diagnosed as SVC-originated AF by surface ECG,and isolation of SVC terminated AF in these 2 patients.In the remaining 14 patients with non-classic surface ECG,AF or organized atrial tachycardia(Ata) still sustained after initial left atrial(LA) ablation.The sustainable AF and Ata were found to be driven by fast activations within SVC,and were terminated by isolation of SVC.The average applications and procedure time for isolating SVC were 6?2 times and 10?3 minutes respectively.The average muscle connections between SVC and LA were 3?1.After a mean period of 6-month-follow-up,only one patient recurred with organized Ata.Except femoral hematoma in one patient,no other complications were found.Conclusion In addition to pulmonary vein and LA,SVC could be the orgin of AF.Therefore,for patient with sustainable AF or organized Ata after initial LA ablation,SVC origin should be put under consideration.
