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

Tipo de estudio: Cohorte / Casos y controles
Juan Fernando Agudelo Uribe
Juan Alberto Espinal-Montoya
marzo 15, 2022
Página inicial: 4921
DOI : 10.19102/icrm.2022.130402
SJR: Q3
Tiempo completo
Tiempo completo
Tiempo completo
Nombre de la revista: JOURNAL OF INNOVATIONS IN CARDIAC RHYTHM MANAGEMENT
Página final: 4928
Línea de investigación: Electrofisiología
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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