Right ventricular septal pacing in patients with right bundle branch block
| Autor: | Belal Al Khiami, Prashant D. Bhave, S. Serge Barold, Phillip E. Schrumpf, Michael C. Giudici, Basil Abu-El-Haija |
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| Rok vydání: | 2014 |
| Předmět: |
Male
medicine.medical_specialty medicine.medical_treatment Bundle-Branch Block Cardiac resynchronization therapy Ventricular Septum Sensitivity and Specificity Cardiac Resynchronization Therapy QRS complex Electrocardiography Ventricular Dysfunction Left Internal medicine Exercise performance medicine Humans In patient cardiovascular diseases Aged Aged 80 and over medicine.diagnostic_test Bundle branch block business.industry Left bundle branch block Reproducibility of Results Right bundle branch block Middle Aged medicine.disease Treatment Outcome cardiovascular system Cardiology Female Cardiology and Cardiovascular Medicine business |
| Zdroj: | Journal of electrocardiology. 48(4) |
| ISSN: | 1532-8430 |
| Popis: | Background Cardiac resynchronization therapy (CRT) has been shown to improve left ventricular (LV) function and exercise performance in patients with left bundle branch block. Patients with right bundle branch block (RBBB) do not have a similar positive response to standard CRT. We hypothesized that single site pacing of the right ventricular septum (RVS) near the proximal right bundle could restore more normal activation of the LV in RBBB patients. Methods 78 consecutive patients (56 M, 22 F) with baseline RBBB underwent pacemaker or ICD implantation. Leads were placed in the right atrium and RVS. Results Baseline QRS duration was 120–220 ms (mean QRSd = 147 ms). At the optimal AV delay, the fused QRSd was 56–160 ms (mean QRSd = 112 ms). The mean decrease in QRSd was 34 ± 20.4 ms (p Conclusion RVS pacing in patients with RBBB resulted in a marked decrease in QRS duration and often normalized the ECG. |
| Databáze: | OpenAIRE |
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