Arrhythmias & electrophysiology
Use of intracardiac echocardiography in vein of Marshall ethanol infusion for ablation of persistent atrial fibrillation
Authors' conclusion
Presence of increased myocardial local echogenicity at the ridge and consistent echogenic streaming in the LA detected by ICE-based imaging during VOM ethanol infusion suggests increased ablated tissue in that region and lower RF ablation time during ablation for PeAF.
Study context
- Population
- Patients with persistent AF undergoing vein of Marshall (VOM) ethanol infusion followed by radiofrequency (RF) ablation
- Participants
- 74 patients
- Exposure
- Intracardiac echocardiography (ICE) findings present vs absent during VOM ethanol infusion
- Group An = 46
- Outcome
- New ethanol-induced low-voltage area
Methodological detailsconsecutive patients
- Consecutive patients
Main finding
As reported in the abstract
P < 0.001
Observational data: associations, not effects.
Further findings
RF ablation time to achieve mitral isthmus block
P < 0.001
Mitral isthmus block achieved
- Mitral isthmus block achieved: Group A via endocardial approach; Group B extra coronary sinus ablation in 4 patients
Safety
- Clinically significant pericardial effusion requiring pericardiocentesis — Group B
- 1 events
Original publication
Use of intracardiac echocardiography in vein of Marshall ethanol infusion for ablation of persistent atrial fibrillation. Heart Rhythm. Published 14 December 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →