Table 1.

Composition of cardioplegia solutions

Group A		Group B
Blood Cardioplegia in St. Thomas solution		Del Nido cardioplegia
Blood: Crystalloid 4: 1		Blood: Crystalloid 1: 4
Ringer’s lactate	320 ml	Plasmalyte-A	500 ml
Mannitol	20 ml	KCl (2 meq/ml)	6.5 ml
Bicarbonate	20 ml	NaHCO3	6.5 ml
St. Thomas solution 40 ml		Lidocaine 2%	3.25 ml
KCl 16 mmol		Mannitol	8.15 ml
MgCl2 16 mmol		MgSO4 50%	2 ml
Procaine 1 mmol

KCl – Potassium chloride, MgCl₂ – Magnesium chloride, MgSO₄ – Magnesium Sulfate, NaHCO₃ – Sodium bicarbonate