FIRE & ICE Complication Predictor

FIRE & ICE Complication Predictor: Explanation and Clinical Context This predictive model estimates the risk of peri-procedural and short-term complications in patients undergoing pulmonary vein isolation (PVI) via either cryoballoon or radiofrequency ablation, based on demographic, anatomical and procedural variables. It aims to guide clinicians in pre-procedure risk stratification and informed consent discussions. Definition: A logistic regression-based risk score derived from the ›FIRE AND ICE Trial data.

It quantifies the likelihood of complications (such as cardiac tamponade, vascular access issues, PV stenosis, or phrenic nerve injury) in percentage form. Normal/Reference value: No strict “normal” value; lower percentages indicate lower predicted risk. A threshold (e.g., ≥ 5 %) may signal higher risk and need for enhanced monitoring or alternative strategies.

Clinical Significance: Enables the electrophysiologist and cardiology team to individualize risk discussion, plan access strategy, choose energy modality, optimize patient preparation (e.g., anticoagulation, imaging), and decide on centre infrastructure (e.g., high-volume vs low-volume). Clinical Interpretation Summary: For example, a predicted risk of 8.3 % suggests a moderate complication likelihood; additional mitigation (senior operator, imaging guidance, cryo vs RF selection) may be considered. On the other hand, a predicted risk of 2 % may support standard workflow.

The score should complement—not replace—clinical judgment and centre experience.