Transoesophageal echocardiography (TOE) plays a pivotal role in the guidance of percutaneous left atrial appendage closure (LAAC). Visualization of the positioning and deployment of the LAAC device is essential for a successful and safe implantation. Due to the relative long duration of a LAAC procedure, currently used standard size probes are often not tolerated by patients without the use of general anaesthesia (GA). The use of GA, however, results in the need for an anaesthesiologist, longer procedure times and the risk for anaesthesia-related complications. Therefore, less invasive imaging techniques to guide LAAC are wanted. For paediatric purposes smaller TOE probes have been developed: the micro probe and the mini probe. Evidence on LAAC guidance with paediatric probes is scarce.
2. Departments of Cardiology, St. Antonius Hospital, Nieuwegein, the Netherlands.
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