| Autor: |
Vadivelu Ramalingam, Shunmugasundaram Ponnusamy, Rizwan Suliankatchi Abdulkader, Senthil Murugan, Selvaganesh Mariyappan, Jeyashree Kathiresan, Mahesh Kumar, Vijesh Anand |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Indian Pacing and Electrophysiology Journal, Vol 24, Iss 2, Pp 75-83 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
0972-6292 |
| DOI: |
10.1016/j.ipej.2023.12.004 |
| Popis: |
Aims: To assess the frontal QRS- T angle (f QRS- T angle) in patients with left bundle branch pacing (LBBP) as compared to right ventricular mid septal pacing (RVSP) implanted for symptomatic high degree atrioventricular (AV) block and to compare with control subjects with normal ventricular conduction (CSNVC) Methods: A total of one-fifty subjects were chosen (50 patients with LBBP, 50 patients with RVSP and 50 CSNVC). The indication for pacemaker implantation was symptomatic high degree AV block. Baseline clinical and electrocardiogram (ECG) parameters like QRS duration (QRSD), QRS axis and f QRS-T angle and Ejection Fraction (EF) were assessed. f QRS-T angle was measured as the difference between the computerised mean frontal QRS and T wave axes in the limb leads. If the difference between the QRS axis and T-wave axis exceeds 180°, then the resultant QRS-T angle would be calculated as 360° minus the absolute angle to obtain a value between 0° and 180°. Baseline, immediate post procedural and 6 month follow up (f/u) ECGs and EF were chosen for the analysis. Results: Patients who underwent LBBP had significantly shorter paced QRSD than patients who had undergone RVSP (112 ± 12 ms vs 146 ± 13 ms; 95 % confidence interval (CI): 43, −31; p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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