Pressure Waveform Analysis for Occlusion Assessment Significantly Reduces Contrast Medium Use in Cryoballoon Pulmonary Vein Isolation

Overview

Journal J Interv Card Electrophysiol

Publisher Springer

Date 2024 Apr 17

PMID 38632135

Authors

Vanessa Sciacca

Thomas Fink

Stephan Winnik

Mustapha El Hamriti

Denise Guckel

Maxim Didenko

Maximilian Morsdorf

Martin Braun

Moneeb Khalaph

Guram Imnadze

Philipp Sommer

Christian Sohns

Affiliations

Soon will be listed here.

Abstract

Background: Pulmonary vein (PV) occlusion is crucial for adequate lesion formation during cryoballoon-guided pulmonary vein isolation (CB-PVI). PV occlusion is usually confirmed by angiographies over the inflated balloon device. The aim of our study was to analyze the safety and efficacy of pressure waveform-based PV occlusion assessment during CB-PVI utilizing a novel fully integrated pressure analysis tool.

Methods: Consecutive patients with symptomatic atrial fibrillation (AF) scheduled for CB-PVI were prospectively enrolled for pressure waveform-based PV occlusion assessment. A patient cohort receiving conventional angiographies served as control group. Patients with common PV ostia were excluded.

Results: The study group consisted of 40 patients (16 females, mean age was 64.5 ± 9.7, 45% persistent AF). The control group consisted of 40 matched patients. All 160 PVs in the study group were successfully isolated without the use of additional venograms confirming PV occlusion. The mean procedure duration was 69 ± 12 min in the study group with a mean fluoroscopy duration of 11.5 ± 4.4 min. The mean contrast medium volume was 22 ± 9 ml in the study group and 36 ± 12 ml in the control group (p = 0.0001). Mean procedure duration, mean balloon temperatures, and mean ablation application durations did not differ significantly between the study and the control group. No periprocedural complications occurred.

Conclusion: CB-PVI utilizing a fully integrated pressure waveform analysis tool to assess PV occlusion is feasible and safe and significantly reduces the amount of contrast medium without impact on procedural parameters and freedom from arrhythmia recurrence.

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