**1. Introduction**

Venous-arterial extracorporeal membrane oxygenation (VA ECMO) is applied in various situations [1]. Because ECMO is a process with some complications and side effects, it would be better to stop as soon as possible once the application target is achieved. If the patient's condition has not improved and the treatment is stopped, the patient's condition will deteriorate again. However, if ECMO support is maintained for too long, unnecessary complications caused by ECMO will occur, resulting in poor clinical results. Therefore, it is important to evaluate the patient well and stop applying ECMO when possible.

Weaning from VA-ECMO differs between centers and information about standardized weaning strategies are lacking. The weaning process still relies upon the single center's experience and individual clinical knowledge and skills.

The initial step in ECMO weaning is to identify the improvements in various aspects based on the recovery of cardiac function.
