Table 1.
Composition of crystalloid (intracellular type: Custodiol, HTK, Bretschneider's, and extracellular type: Plegisol, St. Thomas solution) and blood based cardioplegic solutions.
| Formulation ingredient | Crystalloid-based cardioplegia | Blood-based cardioplegia | Units | ||
|---|---|---|---|---|---|
| Intracellular Custodiol, HTK, Bretschneider's | Extracellular Plegisol, St. Thomas solution | Blood cardioplegia induction 4 : 1 | Blood cardioplegia maintenance 4 : 1 | ||
| Na+ | 15 | 110 | 140 | 140 | mmol/L |
| K+ | 9 | 16 | 20 | 10 | mmol/L |
| Mg2+ | 4 | 16 | 13 | 9 | mmol/L |
| Ca2+ | 0.015 | 1.2 | — | — | mmol/L |
| Histidine | 198 | — | — | — | mmol/L |
| Tryptophan | 2 | — | — | — | mmol/L |
| Ketoglutarate | 1 | — | — | — | mmol/L |
| Mannitol | 30 | — | — | — | mmol/L |
| Glucose | — | — | 6 | 6 | mmol/L |
| Lidocaine | — | 260 | — | mg/L | |
| pH | 7.02–7.20 | 7.8 | 7.2 | 7.4 | [H+] |