Impact of Peridevice Leak on Clinical Outcomes After Left Atrial Appendage Closure: The OCEAN-LAAC Registry.

Summary: Imagine a tiny umbrella placed inside your heart to stop blood clots from escaping and causing a stroke. This procedure is called Left Atrial Appendage Closure (LAAC). But what happens if the umbrella doesn't fit perfectly and leaves a tiny gap? Doctors looked at nearly 1,400 patients to find out. They discovered that even a tiny leak—smaller than a grain of rice—makes a person four times more likely to have a stroke or blood clot within two years. The main takeaway? Doctors should try their best to make sure the seal is completely tight, with zero leaks, to keep patients safe.