Left Atrial Appendage Occlusion Device Embolization (The LAAODE Study): Understanding the Timing and Clinical...

Area of Science:

• Cardiology
• Medical Devices
• Interventional Cardiology

Background:

• Left atrial appendage occlusion device embolization (LAAODE) is a rare but serious complication.
• LAAODE can significantly impact patient morbidity and mortality.
• Understanding the timing and consequences of LAAODE is crucial for patient management.

Purpose of the Study:

• To analyze the timing and clinical consequences of left atrial appendage occlusion device embolization.
• To determine the incidence and common locations of device embolization.
• To compare outcomes between intraoperative and postoperative LAAODE.

Main Methods:

• A systematic search of PubMed and Web of Science databases was conducted for LAAODE cases from October 2014 to November 2017.
• Published LAAODE cases prior to October 2014 from a previous systematic review were included.
• Data on device type, timing of embolization, location, retrieval methods, and complications were analyzed.

Main Results:

• 103 LAAODE cases were identified, with an estimated incidence of 2%.
• Device embolization occurred more frequently in the postoperative period (61%) than intraoperatively (39%).
• Major complications were significantly higher in postoperative LAAODE (44.4%) compared to intraoperative (22.5%).

Conclusions:

• Left atrial appendage occlusion device embolization is a significant complication with a 2% incidence.
• Postoperative device embolization is more common and associated with higher complication rates.
• Understanding LAAODE timing and sequelae aids in patient selection and post-procedural care.