Accuracy of Delta Capnography for the Prediction of Pulmonary Vein Occlusion During Cryoablation for Atrial Fibrillation

Accuracy of Delta Capnography for the Prediction of Pulmonary Vein Occlusion During Cryoablation for Atrial Fibrillation

Soort studie: cohort / Behuizingen en bedieningselementen
Juan Fernando Agudelo Uribe
Juan Alberto Espinal-Montoya
Maart 15, 2022
Startpagina: 4921
DOI : 10.19102/icrm.2022.130402
SJR: Q3
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tijdschrift naam: JOURNAL OF INNOVATIONS IN CARDIAC RHYTHM MANAGEMENT
eindpagina: 4928
Onderzoekslijn: Elektrofysiologie
Investigador junior
Otro

Abstract

The purpose of this study was to quantify the relationship between a drop in end-tidal carbon dioxide (etCO2) and occlusion of pulmonary veins (PVs) to find a delta etCO2 (ΔetCO2) able to predict occlusion during PV isolation (PVI) by cryoballoon. We designed a prospective registry. Paroxysmal atrial fibrillation patients who underwent cryoballoon PVI were included. Capnography was performed. Occlusion was tested by injection. A comparison between ΔetCO2 and occlusion was performed. Eighteen subjects (138 injections) were included. A drop of >3.5 mmHg predicted occlusion of the PV (sensitivity, 80%; specificity, 86.7%). A ΔetCO2 of ≥3.5 mmHg during inflation of the cryoballoon in each PV directly correlates with PV balloon occlusion.

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