Echocardiogram test to predict outcomes in CRT patients
Part of Heart & circulation clinical trials.
This trial looks at how well an echocardiogram (ultrasound of the heart) can predict outcomes for people with left bundle branch block who already have cardiac resynchronisation therapy (CRT). If you qualify, your heart scans may be used to better estimate risk and guide care.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have left bundle branch block with a QRS duration over 130 milliseconds
- You have an ECG signal in lead V6 with R-wave duration over 70 milliseconds
- Your heart pacing (ventricular pacing) is more than 50%
- You already had cardiac resynchronisation therapy (CRT) implanted before joining
- You can understand the study and give informed consent
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This trial tests a new way to use an ECG (electrical heart recording) to predict who will benefit from a special pacemaker called cardiac resynchronization therapy (CRT). It is for people with heart failure and a specific heart rhythm problem.
This trial tests whether a different pacing approach called left bundle branch pacing can improve outcomes and heart structure changes in people who did not improve with standard biventricular CRT. It may help some patients with ongoing heart failure symptoms and weak heart pumping.
This study measures how well blood flows in the heart (coronary flow) in people with heart failure with reduced pumping strength and a specific heart rhythm problem called left bundle branch block. It focuses on people who already have a cardiac resynchronization therapy (CRT) device and have stable treatment, to see how coronary flow relates to their heart condition.
This trial tests a noninvasive way to map your heart’s wiring and veins to help guide placement of a heart resynchronization therapy (CRT) device. If you have certain abnormal heart rhythm and weak heart pumping, it may help doctors place the therapy more accurately and safely.
This trial tests a special pacing method for people with heart failure. It aims to improve the heart's pumping by using a more natural pacing approach.
This trial tests a pacing approach designed to improve how the heart beats in some people with heart failure and a specific heart rhythm pattern on ECG. If you already need a device (CRT-D) based on your results, the study may help see whether this pacing correction improves outcomes.
Hear when a new Left Bundle-Branch Block trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.