Severity of acute pancreatitis: a multivariate analysis of oxidative stress markers and modified Glasgow criteria.
BACKGROUND
It is unknown whether measurement of markers of oxidative stress can improve the prediction of severity of acute pancreatitis.


METHODS
Consecutive patients admitted with a diagnosis of acute pancreatitis were divided into mild (n = 62) and severe (n = 23) groups based on the Atlanta classification. Plasma oxidative stress markers were measured within 24 h of admission and included ascorbic acid (endogenous antioxidant), protein carbonyl (a marker of protein oxidation), thiobarbituric acid reactive substances (a marker of lipid peroxidation) and myeloperoxidase (a neutrophil enzyme that produces oxidants). Canonical correlation analysis was used to describe the relationship between these markers and the modified Glasgow criteria. Canonical variate analysis was used to define the best variables that could discriminate mild and severe pancreatitis.


RESULTS
There was a significant correlation between markers of oxidative stress and the modified Glasgow criteria (first canonical correlation 0.69, P < 0.0001, Wilk's lambda test). Blood urea, serum albumin and white cell count were the best variables that discriminated mild and severe acute pancreatitis, and all were better than the oxidative stress markers.


CONCLUSIONS
The markers of oxidative stress were highly correlated with the severity of pancreatitis. They are unlikely to be better than the modified Glasgow criteria in predicting it.
Pancreatitis Research Group, Department of Surgery, Faculty of Medicine and Health Science, University of Auckland, Auckland, New Zealand.
F M
FM
Abu-Zidan
M J
MJ
Bonham
J A
JA
Windsor
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015415:Biomarkers / Q000032:analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D018384:Oxidative Stress / Q000502:physiology*; D010195:Pancreatitis / Q000145:classification* / Q000175:diagnosis / Q000378:metabolism; D012720:Severity of Illness Index
D015415:Biomarkers