Hidden heart rhythms: can monitoring reveal best treatment for blocked arteries?
NCT ID NCT04542460
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tracks heart rhythm problems in 200 people with a chronic total coronary occlusion (a completely blocked heart artery). All participants get a small implanted heart monitor (loop recorder) to detect dangerous arrhythmias. The goal is to compare how often these occur in patients treated with medication alone versus those who also undergo a procedure (PCI) to open the blockage. The study also looks at patients whose PCI was unsuccessful.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could clarify how often dangerous heart rhythms occur in CTO patients and whether PCI or medication better reduces that risk.
What could go wrong
This is an observational study, not a treatment trial. It will not directly test a new therapy, and results may not change current care.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Aalborg university hospital
Aalborg, North Denmark, 9000, Denmark