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Utility of the novel microcatheter in left ventricular summit arrhythmias with a tortuous anterior interventricular vein.

ABSTRACT:

SUBMITTER: Sagawa Y

PROVIDER: S-EPMC9123319 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Utility of the novel microcatheter in left ventricular summit arrhythmias with a tortuous anterior interventricular vein.

Sagawa Yuichiro Y Yamauchi Yasuteru Y Ohgino Yasuyuki Y Kurabayashi Manabu M Goya Masahiko M Sasano Tetsuo T

HeartRhythm case reports 20220304 5

PMID: 35607345

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Project description:BackgroundCoronary venous ethanol ablation (VEA) can be used as a strategy to treat ventricular arrhythmias arising from the left ventricular summit, but collateral flow and technical challenges cannulating intramural veins in complex venous anatomies can limit its use. Advanced techniques for VEA can capitalize on collateral vessels between target and nontarget sites to improve success.MethodsOf 55 patients with left ventricular summit ventricular arrhythmia, advanced techniques were used in 15 after initial left ventricular summit intramural vein mapping failed to show suitable targets for single vein, single-balloon VEA. All patients had previous radiofrequency ablation attempts. Techniques included: double-balloon for distal protection to block distal flow and target the proximal portion of a large intramural vein where best signal was proximal (n=6); balloons in 2 different left ventricular summit veins for a cross-fire multivein VEA (n=4); intramural collateral vein-to-vein cannulation to reach of targeted vein via collateral with antegrade ethanol and proximal balloon block (n=2); prolonged ethanol dwell time for vein sclerosis of large intramural vein and subsequent VEA (n=3); and intramural collateral VEA (n=1).ResultsFifteen (8 females) patients (age 60.6±17.6 years) required advanced techniques. Procedure time was 210±49.9 minutes, fluoroscopy time was 25.3±14.1 minutes, and 113±17.9 cc of contrast was utilized. A median of 7 cc of ethanol was delivered (range, 4-15 cc). Intraprocedural radiofrequency ablation was delivered before ethanol in 9 out of 15 patients but failed. Ethanol achieved acute success in all 15 patients. Ethanol was used as the sole treatment in two patients. At a median follow-up of 194 days, one patient experienced recurrence.ConclusionsAdvanced techniques capitalizing on venous anatomy can enable successful VEA and selective targeting of arrhythmogenic sites, by blocking distal flow, utilization of collaterals between nontarget and target veins and multivein VEA. Understanding individual anatomy is critical for VEA success.

Dataset Information

Utility of the novel microcatheter in left ventricular summit arrhythmias with a tortuous anterior interventricular vein.

Publications

Utility of the novel microcatheter in left ventricular summit arrhythmias with a tortuous anterior interventricular vein.

Similar Datasets

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