Table 3.
Modified Marshall scoring system for organ dysfunction[29]
| Organ System |
Score |
||||
| 0 | 1 | 2 | 3 | 4 | |
| Respiratory (PaO2/FiO2) | > 400 | 301-400 | 201-300 | 101-200 | ≤ 101 |
| Renal1 | |||||
| (serum creatinine, mmol/L) | ≤ 134 | 134-169 | 170-310 | 311-439 | > 439 |
| (serum creatinine, mg/dL) | < 1.4 | 1.4-1.8 | 1.9-3.6 | 3.6-4.9 | > 4.9 |
| Cardiovascular (systolic blood pressure, mmHg)2 | > 90 | < 90 and fluid responsive | < 90 and not fluid responsive | < 90, pH < 7.3 | < 90, pH < 7.2 |
1
A score for patients with pre-existing chronic renal failure depends on the extent of further deterioration of baseline renal function. No formal correction exists for a baseline serum creatinine ≥ 134 μmol/L or ≥ 1.4 mg/dL;
2
Off inotropic support. For non-ventilated patients, the FiO2 can be estimated from below: (1) Supplemental oxygen (L/min) is room air, the percentage of FiO2 is 21%; (2) Supplemental oxygen is 2 L/min, 4 L/min, FiO2 is 25%, 30%, respectively; (3) Supplemental oxygen is 6-8 L/min, FiO2 is 40%; and (4) Supplemental oxygen is 9-10 L/min, FiO2 is 50%. A score of 2 or more in any system defines the presence of organ failure.