| AV | Auriculo-ventricular |
| CHF | Cardiac hearth failure |
| CRT | Cardiac resynchronization therapy |
| LV | Left ventricle |
| LVEF | Left ventricular ejection fraction |
| LBBB | Left bundle branch block |
| KCCQ | Kansas City Cardiomyopathy questionnaire |
| LVESV | LV end-systolic volume |
| GLS | Global longitudinal strain |
| FACRV | Fractional area change of the right ventricle |
| 6MWT | 6 min walk test |
| QoL | Quality of Life |
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