Intra-abdominal pressure: Time ripe to revise management guidelines of acute pancreatitis?

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

¹A 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;

²Off 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.