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 2 ) and occlusion of pulmonary veins (PVs) to find a delta etCO 2 (ΔetCO 2 ) able to predict occlusion during PV isolation (PVI) by cryoballoon. We designed a prospective registry. Paroxysmal...
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Published in | The Journal of innovations in cardiac rhythm management (Print) Vol. 13; no. 3; pp. 4921 - 4928 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
MediaSphere Medical
15.03.2022
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Subjects | |
Online Access | Get full text |
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Summary: | The purpose of this study was to quantify the relationship between a drop in end-tidal carbon dioxide (etCO
2
) and occlusion of pulmonary veins (PVs) to find a delta etCO
2
(ΔetCO
2
) 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
2
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
2
of ≥3.5 mmHg during inflation of the cryoballoon in each PV directly correlates with PV balloon occlusion. |
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Bibliography: | The authors report no conflicts of interest for the published content. |
ISSN: | 2156-3977 2156-3993 |
DOI: | 10.19102/icrm.2022.130302 |