In this on-demand activity, Deepthy Varghese, MSN, ACNP, FNP, Northside Hospital is joined by James O’Hara, PhD, PA, Virginia Heart and Shunmuga Sundaram Ponnusamy, MBBS, MD, CEPS-A, Velammal Medical College Hospital and Research Institute to discuss a study that evaluated the impact of QRS morphology on the risk of life-threatening ventricular arrhythmias in heart failure patients treated with cardiac resynchronization therapy with a defibrillator (CRT-D). The analysis included 2,862 patients from five major ICD trials, focusing on those with a QRS duration of 130 ms. Patients were categorized into those receiving ICD-only or CRT-D. Key findings: Among patients with left bundle branch block (LBBB), those with CRT-D showed a significant 44% reduction in the risk of fast ventricular tachycardia (VT)/ventricular fibrillation (VF) compared to ICD-only patients. They also had a lower burden of fast VT/VF and fewer appropriate shocks. In patients with non-left bundle branch block (NLBBB), CRT-D did not reduce the risk of fast VT/VF and was associated with a significant increase in the burden of fast VT/VF events compared to ICD-only patients. The study concludes that CRT-D effectively reduces life-threatening ventricular arrhythmias in LBBB patients but may increase the risk in NLBBB patients.
- Provider:Heart Rhythm Society
- Activity Link: https://www.heartrhythm365.org/URL/TheLeadEpisode65
- Start Date: 2024-06-17 05:00:00
- End Date: 2024-06-17 05:00:00
- Credit Details: AMA PRA Category 1 Credit™️: 0.25 hours
- MOC Credit Details: ABIM - 0.25 Point; Credit Type(s): Medical Knowledge (ABIM)
ABP - 0.25 Point; Credit Type(s): Lifelong Learning and Self-Assessment (ABP) - Commercial Support: No
- Activity Type: Enduring Material
- CME Finder Type: Online Learning
- Fee to Participate: No, it's free
- Measured Outcome: Learner Competence
- Provider Ship: Directly Provided
- Registration: Open to all
- Specialty: Clinical Cardiac Electrophysiology, Pediatric Cardiology