[Multisite right ventricular stimulation for cardiac failure refractory to biventricular resynchronization therapy....

Area of Science:

• Cardiology
• Heart Failure Management

Background:

• Congestive heart failure (CHF) prevalence is rising globally, with pharmacological treatments insufficient for some patients.
• Cardiac resynchronization therapy (CRT) is an option for advanced CHF, but non-response and symptom recurrence occur.
• Multisite stimulation, involving a second right ventricular electrode, is an emerging strategy for CRT non-responders or those with recurrent symptoms.

Observation:

• A 76-year-old woman with dilated cardiomyopathy experienced symptom recurrence and functional class deterioration (NYHA Class IV) two years after initial CRT.
• The patient was subsequently treated with right ventricular multisite stimulation.

Findings:

• The patient showed a significant reduction in congestive heart failure symptoms following the multisite stimulation procedure.
• Symptom improvement was sustained during the two-month follow-up period post-procedure.

Implications:

• Multisite stimulation may be a viable therapeutic option for select heart failure patients with CRT failure or recurrence.
• This case highlights the potential of advanced CRT techniques to manage refractory heart failure symptoms and improve functional class.