Publications by authors named "M V Budanova"
Article Synopsis
- Ablation of premature ventricular contractions (PVCs) typically requires detailed activation mapping, but this can be challenging if PVCs are absent during the procedure.
- An alternative method, pacemapping, has its drawbacks.
- In a case study, a patient with frequent PVCs had no PVCs on the procedure day, yet successful ablation was achieved using electrocardiographic imaging and substrate mapping.
Article Synopsis
- The study aimed to find out the minimum number of ECGI leads necessary for achieving good spatial resolution in mapping arrhythmias during ablation procedures.
- Out of 20 patients, the highest agreement between ECGI and Carto mapping was when using 23 electrode bands (85% agree rate), while reducing to 6 electrode bands significantly decreased agreement to 55%.
- The findings suggest that while fewer leads lead to lower spatial resolution, approximately 74 leads are sufficient for acceptable quality mapping, indicating efficiency in lead usage can be achieved without compromising accuracy.
Article Synopsis
- The study used non-invasive electrocardiographic imaging (ECGI) to analyze the heart's electrical properties in patients with frequent premature ventricular contractions (PVCs) originating from the right ventricular outflow tract (RVOT) and control subjects.
- Results showed that patients with PVCs had significantly shorter recovery times (RT) in both endocardial and epicardial layers compared to controls, along with greater dispersion in activation recovery intervals (ARI) and RT on the epicardium.
- The findings suggest that the electrophysiological characteristics in individuals with frequent RVOT PVCs are distinct, potentially indicating underlying differences in heart function.
Background: Despite the tremendous progress recently reported in ECG imaging (ECGI), some fundamental challenges are still hindering this non-invasive technology from meeting rising clinical expectations. In the present work, we address one of the major ECGI shortcomings in reconstruction of ventricular activation - the limited accuracy of endocardial and particularly septal mapping.
Methods: Ten CRT patients (five female, median (min-max) age - 61 (27-78) years) with previously implanted CRT devices underwent ECGI with isolated right ventricular (RV) pacing.
Aim: The aim of study is a detection of ventricular and supraventricular wide QRS arrhythmias using complex of morphological criteria and algorithms by method of automatic analysis.
Materials And Methods: For 100 patients (m/f - 61/39, Me (min; max) - 44.5 (10; 85) years) of researched group the analysis of 14306 single wide ectopic complexes (QRS 120-230 ms) has been done.