Acute necrotizing pancreatitis: Surgical indications and technical procedures

Table 1 Revised definitions of acute pancreatitis (2012)[1,2]

Types
Interstitial edematous	Inflammation of pancreatic parenchyma and peripancreatic tissue, without necrosis
Necrotizing	Inflammation with pancreatic parenchymal and/or peripancreatic necrosis
Grades of severity
Mild	No organ failureLack of local or systemic complications
Moderate	Transient organ failure (< 48 h) and/orLocal or systemic complications without persistent organ failure
Severe	Persistent single or multiple organ failure(> 48 h)

Table 2 Modified Marshall scoring system for organ or multiorgan failure[2,7]

Organ system	0	1	2	3	4
Respiratory (PaO2/FiO2)	> 400	300-400	200-300	100-200	< 100
Renal (Creatinine, mg/dL)	< 1.4	1.4-1.8	1.8-3.6	3.6-5	> 5
Cardiovascular (mmHg)	> 90	< 90, fluid responsive	< 90, not fluid responsive	< 90, pH < 7.3	< 90, pH < 7.2