What is the role of cardiac resynchronization therapy (CRT) in relation to conduction system pacing?

The role of cardiac resynchronization therapy (CRT) is primarily focused on improving the synchronization of heart contractions, particularly in patients who experience heart failure with a specific type of heart rhythm disturbance known as conduction abnormalities. When applied through biventricular pacing, CRT involves placing leads in both the right and left sides of the heart. This allows for better coordination between the left and right ventricles, which can enhance overall heart efficiency and improve outcomes for patients with conditions like dilated cardiomyopathy or heart failure with reduced ejection fraction.

By synchronizing the contractions, CRT can help restore a more physiologic timing of the heartbeat, leading to improved cardiac output, reduction in symptoms, and better quality of life for patients. This makes it a pivotal treatment modality for managing heart rhythm issues associated with impaired cardiac function.

Other options do not accurately reflect the broader context or application of CRT, as it is not limited to just bradycardia control, nor is it exclusively utilized post-myocardial infarction, and it is directly related to conduction system pacing through its approach to addressing electrical conduction issues in the heart.