Modified method for Novacor left ventricular assist device implantation

Area of Science:

• Cardiovascular Surgery
• Medical Devices
• Mechanical Circulatory Support

Background:

• Left ventricular assist devices (LVADs) are crucial for end-stage heart failure.
• Traditional LVAD implantation techniques can present challenges in precision and deairing.
• The Novacor LVAD is a widely used device requiring specific implantation considerations.

Purpose of the Study:

• To present and evaluate an alternative "orthodromic" surgical technique for Novacor LVAD implantation.
• To demonstrate improved procedural aspects including bleeding control and device deairing.
• To assess the impact of this technique on patient outcomes, specifically ischemic time and right ventricular function.

Main Methods:

• Development and application of a novel "orthodromic" implantation technique in 7 cases.
• Modification of the diaphragmatic insertion site for enhanced bleeding control.
• Sequential apical cannulation on a dry field followed by outflow conduit anastomosis.
• Systematic deairing of the device during and after implantation.

Main Results:

• The technique demonstrated precise apical cannulation and effective bleeding control.
• Accurate deairing of the Novacor LVAD pump was consistently achieved.
• Shorter ischemic times were observed compared to conventional methods.
• Negligible damage to the right ventricle was noted in all cases.

Conclusions:

• The described orthodromic technique offers a safe and effective alternative for Novacor LVAD implantation.
• This approach enhances surgical precision, simplifies bleeding management, and optimizes device deairing.
• The technique holds promise for improving patient outcomes by minimizing cardiac ischemia and right ventricular strain.