Studying heart size changes after shock and ablation for AF
Part of Heart & circulation clinical trials.
This trial looks at how the size of your heart's upper-left chamber (left atrium) changes after a procedure to restore a normal rhythm (cardioversion). It aims to see if these changes can predict whether atrial fibrillation (AF) will come back after a later procedure called radiofrequency ablation.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You must have been diagnosed with persistent atrial fibrillation in the last 6 months.
- Before cardioversion, your left atrium (heart chamber) must measure between 40mm and 50mm on an ultrasound.
- You must have had a successful cardioversion (with medicine or electric shock) to get your heart back to a normal rhythm.
- You need to have had at least two heart ultrasounds (echocardiograms) – one before cardioversion and another 3-6 months after – to see if your heart size changed.
- You cannot have had previous heart surgery or a prior ablation for AF.
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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