Perfusion during coronary and mitral valve surgery utilizing minimally invasive Port-Access technology

Area of Science:

• Cardiovascular Surgery
• Minimally Invasive Techniques
• Medical Device Technology

Background:

• Minimally invasive surgery is increasingly utilized for cardiovascular disease treatment.
• Port-Access surgery represents an advancement in minimally invasive cardiac procedures.
• This technique integrates cardiopulmonary bypass with specialized endovascular catheters.

Purpose of the Study:

• To evaluate the feasibility of the Port-Access surgical approach.
• To assess the application of this technique in coronary artery and mitral valve surgery.
• To demonstrate the efficacy of the specialized catheter system for cardiopulmonary support and myocardial preservation.

Main Methods:

• Utilized extrathoracic cardiopulmonary support via femoro-femoral bypass with kinetic assisted venous drainage.
• Employed an endovascular catheter system including an endoaortic balloon catheter, endopulmonary vent, and endocoronary sinus catheter.
• Applied the Port-Access approach to an initial cohort of 20 patients (10 coronary artery, 10 mitral valve).

Main Results:

• Successfully weaned all 20 patients from cardiopulmonary bypass.
• Achieved average bypass times of 94.4 min for coronary artery surgery and 152.8 min for mitral valve surgery.
• Recorded mean aortic occlusion times of 49.7 min for coronary artery surgery and 112.6 min for mitral valve surgery.

Conclusions:

• The Port-Access surgical approach is feasible in selected patients with cardiovascular diseases.
• This minimally invasive technique effectively provides cardiopulmonary support and myocardial preservation.
• The specialized catheter system facilitates complex cardiac procedures with reduced invasiveness.