Table 2.
References | Author | Sample Size | Age (years) | Female (%) | Valvular abnormality (%) | Type of arrhythmia | Common ablation site | Acute success (%) | Mean Follow-up (months) | Follow-up Results |
---|---|---|---|---|---|---|---|---|---|---|
(44) | Syed et al | 14 | 33.8 | 93 | Bileaflet MVP with mild MR | NSVT or sustained VT (57%) History of cardiac arrest, ICD shocks for PVC-triggered VF (43%) |
Papillary muscle/fascicular sites (93%) Both LV papillary muscles (55%) Purkinje system (79%) |
86 | 25 | Significant decrease in VT burden and appropriate ICD shocks |
(41) | Lee et al | 9 | 58.0 | 78 | Bileaflet MVP (89%) < moderate MR (67%) |
NSVT (56%) | PPM (48%) Both LV papillary muscles (26%) |
60 | 41 | VT recurrences for 25%* |
(40) | Bumgarner et al | 30 | 54.3 | 53 | Bileaflet MVP (52%) Posterior MVP (36%) ≥ moderate MR (72%) |
PVC (44%) Sustained VT (39%) |
Papillary muscle (27%) MV annulus (15%) |
67 | 30 | VA recurrences for 26% |
(42) | Enriquez et al | 25 | 54.7 | 64 | Bileaflet MVP (72%) Mild to moderate MR (76%) |
PVC and NSVT (56%) | PPM (56%) Antero-lateral papillary muscle (32%) |
76 | 31 | 20% → 6% reduction in PVC burden |
(45) | Ezzeddine et al | 40 | 47.0 | 70 | MAD | PVC, sustained VT and PVC-triggered VF | MAD area, anterolateral mitral annulus (substrate ablation) | 90 | 54 | 9.7% → 4% decrease in PVC burden |
*VA recurrence rates reported after single CA procedure.
LV, left ventricle; MAD, mitral annular disjunction; MR, mitral regurgitation; MV, mitral valve; MVP, mitral-valve prolapse; NSVT, non-sustained ventricular tachycardia; PPM, postero-medial papillary muscle; PVC, premature ventricular complex; VA, ventricular arrhythmia; VT, ventricular tachycardia.