Effect of catheter ablation with vein of Marshall ethanol infusion for perimitral flutter in a patient with senile transthyretin cardiac amyloidosis: a case report.

ABSTRACT:

Background

Senile transthyretin cardiac amyloidosis (AL) is an underdiagnosed infiltrative cardiomyopathy causing heart failure symptoms in elderly patients. It is associated with a higher incidence of atrial fibrillation (AF) and atrial flutter.

Case summary

A 75-year-old male patient with senile transthyretin cardiac AL presented with congestive heart failure [New York Heart Association (NYHA) IV] related to rapid perimitral atrial flutter, causing tachycardia-induced cardiomyopathy with a left ventricular ejection fraction (LVEF) of 25%. He underwent AF voltage-guided ablation with vein of Marshall (VOM) ethanol infusion to block the mitral isthmus. Left atrial bipolar voltage mapping revealed diffuse and severe left atrial low-voltage areas related to amyloid protein inf

SUBMITTER: Fitouchi S 

PROVIDER: S-EPMC12328312 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature