Accuracy of Delta Capnography for the Prediction of Pulmonary Vein Occlusion During Cryoablation for Atrial Fibrillation.
The Journal of innovations in cardiac rhythm management(2022)
摘要
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.
更多查看译文
关键词
Atrial fibrillation,capnography,cryoballoon,diagnostic test,pulmonary vein isolation
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要