Radiofrequency Ablation of the Distal Vein of Marshall Prior to Ethanolization
Huaxiu Cai, Gang Cao · 2026
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Description
Cai and Cao described in 2026 a protective maneuver used in a woman of 75 whose atrial fibrillation was long-standing and persistent. Atrial fibrillation is the chaotic heart rhythm that raises stroke risk. Her treatment combined heat-based ablation with an ethanol infusion into the vein of Marshall. Destroying that small heart vein helps stop the rhythm problem. Ethanol escaping through the vein's far end can injure the heart's natural pacemaker, though.
Imaging showed contrast from the vein draining straight into the right atrium. That is exactly the route endangering the pacemaker and the heart's electrical relay. Before any ethanol flowed, the team threaded a wire into the far segment. Controlled heat of just 10 watts sealed it shut. Ethanol was then injected in two slow doses totaling six milliliters. No pacemaker arrest or relay block occurred. The lung veins were fully isolated, and the fibrillation stopped during the procedure.
Catalog record
| CREATOR | Huaxiu Cai, Gang Cao |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 4 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |