The Journal of thoracic and cardiovascular surgery
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J. Thorac. Cardiovasc. Surg. · Jul 2014
A novel coronary active perfusion system using a conventional intra-aortic balloon pump for off-pump coronary artery bypass grafting.
It is important for coronary active perfusion systems to avoid myocardial ischemia during off-pump coronary artery bypass grafting. We have developed a new concept for a perfusion system to pump blood based on changes in helium gas volume. This system uses a conventional intra-aortic balloon pump to activate the perfusion pump. Our study used basic and animal experiments to investigate the most suitable system for coronary perfusion using this new concept. ⋯ We clarified the most suitable method for our new coronary active perfusion system. Using this system, safe anastomosis was consistently performed in animal experiments. Clinically, off-pump coronary artery bypass may potentially be performed more safely and easily using this new system.