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

The purpose of this study was to quantify the relationship between a drop in end-tidal carbon dioxide (etCO ) and occlusion of pulmonary veins (PVs) to find a delta etCO (ΔetCO ) able to predict occlusion during PV isolation (PVI) by cryoballoon. We designed a prospective registry. Paroxysmal atrial...

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Bibliographic Details
Published in:The Journal of innovations in cardiac rhythm management (Print) 2022-03, Vol.13 (3), p.4921-4928
Main Authors: Agudelo-Uribe, Juan Fernando, Ramirez-Barrera, Juan David, Espinal-Montoya, Juan Alberto, Miranda-Arboleda, Andres Felipe, Saenz-Jaramillo, Gloria, Tobon-Upegui, Marcela Paola, Castellanos-Martinez, Eduardo
Format: Article
Language:English
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Summary:The purpose of this study was to quantify the relationship between a drop in end-tidal carbon dioxide (etCO ) and occlusion of pulmonary veins (PVs) to find a delta etCO (ΔetCO ) 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 ΔetCO 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 ΔetCO of ≥3.5 mmHg during inflation of the cryoballoon in each PV directly correlates with PV balloon occlusion.
ISSN:2156-3977
DOI:10.19102/icrm.2022.130402