Comparing pacing methods for slow heartbeat with long AV delay
Part of Heart & circulation clinical trials.
This trial tests two types of heart pacing to see which works better for people with a slow heartbeat from sinus node issues and a long delay between the upper and lower heart chambers (PR interval over 200 ms). The goal is to find the best way to pace the heart while keeping unnecessary pacing minimal.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are over 18 years old.
- You have a slow heartbeat condition (sick sinus syndrome) that causes symptoms like fatigue, dizziness, or fainting.
- You have a long delay between the atria and ventricles (PR interval greater than 200 ms on an ECG).
- You do not have permanent atrial fibrillation or a pre-existing pacemaker or defibrillator.
- You have not had a heart transplant or a mechanical tricuspid valve.
- You are not pregnant or breastfeeding, and you are expected to live at least 2 more years.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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