3.3.5. Complications
23 included articles(n=415) referred to the major immediate procedure-related complications, which included: device dislocation(n=10, 2.41%), device embolization(n=7, 1.69%), left ventricular rupture or perforation(n=12, 2.89%), hemolysis(n=12, 2.89%), blood transfusion(n=15, 3.61%), arrhythmia(n=20, 4.82%), residual shunt(n=11, 2.65%). The complications not related to the procedure are as follows: multi-organ failure(n=19, 4.58%), respiratory(renal) and/or circulatory failure(n=20, 4.82%), cerebral infarction(n=3, 0.72%).