Staged systemic hyperkalemia and deep hypothermia for myocardial protection in mini-thoracotomy reintervention: Preserving patency in post-CABG patent grafts.

BackgroundTraditional cardioplegia strategies often fail in cases with patent coronary grafts due to continuous myocardial perfusion, this necessitates for alternate approaches such as systemic hyperkalemic cardiac arrest. During redo cardiac surgeries, a patent left internal mammary artery (LIMA) might prevent the heart from maintaining electrical cardiac arrest. Induced systemic hyperkalaemia is a novel approach to maintain cardiac electromechanical arrest.