High-Risk Coronary Revascularization Supported by MoyoAssist® Magnetic Levitation

The Cardiology Department of Kunhua Hospital, Yunnan Province's First People's Hospital, successfully completed a high-risk PCI revascularization surgery using the fully magnetic levitation extracorporeal ventricular assist device (Extra-Ventricular Assist Device, MoyoAssist®). The use of this device provided effective hemodynamic support throughout the intervention, contributing to procedural stability and improved postoperative recovery in a critically ill cardiac patient.

Patient Profile

Age: 38

Gender: Male

Medical History: Recurrent shortness of breath and chest tightness for 9 months

Echocardiogram Results:

• Left atrial and ventricular enlargement

• Reduced left ventricular wall motion

• LVEF of 36%

Coronary Angiography:

• Severe coronary artery disease:

Complete occlusion of mid-right coronary artery

Near-total occlusion of proximal left anterior descending artery

95% stenosis in the middle circumflex artery

• Multiple underlying conditions, making the patient's condition highly critical

• Family declined coronary artery bypass surgery

Surgical Challenges

• Severe Heart Failure: LVEF of 36%, compounded by multiple underlying conditions

• High-Risk Coronary Lesions: Complex coronary artery disease with extensive occlusions

• Surgical Risks: High risk of myocardial ischemia and complications during prolonged procedures

• Decision: To perform PCI under MoyoAssist® support to stabilize circulatory support and minimize risk

Surgical Procedure

Placement of MoyoAssist®:

• Femoral vein puncture for placement of 20F venous drainage catheter into left superior pulmonary vein

• Femoral artery puncture for placement of 16F arterial perfusion catheter and distal perfusion catheter

• Activation of MoyoAssist® with a flow rate of 2 L/min to stabilize hemodynamics and ensure lower limb blood supply

Percutaneous Coronary Intervention (PCI):

• Radial artery approach used to open left anterior descending artery and circumflex artery

• Intravascular ultrasound (IVUS) guidance for precise stent placement (5 stents and 1 drug-eluting balloon)

• Successful revascularization with TIMI 3 flow restoration

Device Operation & Monitoring:

• MoyoAssist® operated steadily at 2500 RPM, flow rate of 1.97 L/min, ensuring stable vital signs during surgery

• Post-surgery, the patient was transferred to the CCU with stable hemodynamics, and the device was removed after 1 day

Post-Operative Recovery:

• Day 1: Hemodynamic stability and successful device removal

• Day 4: Patient able to walk

• Full recovery and discharge after a short hospitalization

Clinical Insights

• Patient Population: With the aging population and increasing complexity of coronary artery disease, particularly in elderly patients with multiple comorbidities, traditional surgical procedures pose high risks.

• PCI Risks: In such cases, PCI is associated with significant risks, including myocardial ischemia and complications.

• Device Benefit: The use of MoyoAssist® provides stable circulatory support during high-risk coronary procedures, reducing surgical risk and improving patient outcomes.

  
  

For more information about MoyoAssist®, please visit https://en.magassist.tech/MoyoAssist-Extra-VAD/