Does Normothermic Normokalemic Simultaneous Antegrade/Retrograde Perfusion Improve Myocardial Oxygenation and Energy Metabolism for Hypertrophied Hearts?

Normothermic normokalemic simultaneous antegrade/retrograde perfusion did not improve, but slightly impaired myocardial oxygenation and energy metabolism of beating hypertrophied hearts relative to NNAP. Therefore, NNSP for protection of beating hypertrophied hearts during valve surgery should be used with extra caution.