Clinical Trial of Ventiflow LP Supporting High-risk Percutaneous Coronary Intervention(PCI)

The purpose of this prospective, multicenter, randomized controlled clinical trial is to evaluate the effectiveness of the transcatheter left ventricular assist system (Ventiflow LP) in providing circulatory support to patients during high-risk PCI procedures compared to veno-arterial extracorporeal membrane oxygenation (VA-ECMO).The participants will be randomly assigned to the experimental group or the control group after enrollment, and will undergo percutaneous coronary intervention(PCI) with support from Ventiflow LP or VA-ECMO respectively. All participants need to undergo a 3-month follow-up after operative.