Table 1.

Components of solution.

Cardioplegia			Normal Tyrode's solution			Normal Tyrode's solution for recording
Composition	Manufacturer	Concentration (mM)	Composition	Manufacturer	Concentration (mM)	Composition	Manufacturer	Concentration (mM)
NaCl	VWR Chemicals	110	NaCl	VWR Chemicals	140	NaCl	VWR Chemicals	140
CaCl2	Sigma-Aldrich	1.2	CaCl2	Sigma-Aldrich	1.8	CaCl2	Sigma-Aldrich	1.8
KCl	Sigma-Aldrich	16	KCl	Sigma-Aldrich	6	KCl	Sigma-Aldrich	4.5
MgCl2	VWR Chemicals	16	MgCl2	VWR Chemicals	1	MgCl2	VWR Chemicals	1
			Glucose	Sigma-Aldrich	10	Glucose	Sigma-Aldrich	10
			HEPES	VWR Chemicals	10	HEPES	VWR Chemicals	10
			BDM	Sigma-Aldrich	10
*add NaHCO3 (10mM) to pH 7.4			*add NaOH (10M) to pH 7.4			*add NaOH (10M) to pH 7.4

*The component needs to be added to adjust the pH of the solution.