Publications by authors named "I G Koev"
The Value of P-Wave Parameters Changes in Predicting Catheter Ablation Outcomes for Paroxysmal Atrial Fibrillation.
Ann Noninvasive Electrocardiol
January 2025
Background: Pulmonary vein isolation (PVI) is the most promising management method for paroxysmal atrial fibrillation (PAF). The P wave in the electrocardiogram (ECG) represents atrial depolarization. This study aims to correlate P-wave parameters after PVI with outcomes.
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- This study investigates the impact of two types of ablation (radiofrequency and cryoballoon) on the quality of life (QoL) in patients with paroxysmal atrial fibrillation (PAF).
- Both RF and cryo procedures showed significant improvements in QoL metrics after 12 months, with sustained benefits at 30 months, indicating both methods are effective.
- However, performing additional ablations did not result in further QoL enhancements compared to those who only underwent pulmonary vein isolation (PVI).
Value of P-wave Parameters in Predicting Outcomes of Repeat Catheter Ablation for Paroxysmal Atrial Fibrillation.
Pacing Clin Electrophysiol
January 2025
Background: Pulmonary vein isolation (PVI) has been established as an effective management option for symptomatic paroxysmal atrial fibrillation (PAF). We aimed to explore the role of P-wave parameters in a 12-lead electrocardiogram (ECG) in predicting the success of repeat PAF ablation.
Methods: We enrolled consecutive patients who underwent a second AF ablation procedure for PAF in a UK tertiary center after an index ablation conducted between 2018 and 2019 and a repeat ablation up to 2021.
Article Synopsis
- Pulmonary vein isolation (PVI) effectively manages paroxysmal atrial fibrillation (PAF), and this study investigates how P wave parameters from ECG can predict PVI success.
- The research involved 211 patients undergoing first-time PVI, measuring various P wave metrics before the procedure, and found that specific parameters correlated with successful outcomes at 12 months.
- Key predictors of PVI failure included increased corrected P wave duration (PWDc), decreased P wave amplitude (PWV) and area (PWA), and intra-atrial block (IAB), while P wave dispersion (PWDisp) and terminal force in V1 (PTFV1) didn’t show significant correlation.
Background: Pulmonary vein isolation (PVI) ablation is the established gold standard therapy for patients with symptomatic drug refractory atrial fibrillation (AF). Advancements in radiofrequency (RF) ablation, have led to the development of the novel contact force-sensing temperature-controlled very high-power short-duration (vHPSD) RF ablation. This setting delivers 90 W for up to 4 seconds with a constant irrigation flow rate of 8 mL/min.
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