The Value Of CT In Assessing The Prognosis Of Sever Acute Pancreatitis

ObjectiveTo study the relationship between CT imagine classification criteria and the prognosis of severe acute pancreatitis(SAP).MethodsWe analyzed 62 cases of patients with SAP, retrospectively. They were all executed CT examination in 72 hours after admission, and their CT imagine were classified as grades:C (n=13), D (n=26), E (n=23) according to the Balthazar classification criteria and also classified as:A grade (0-3 points), B grade (4-6 points), C grade (7-10 points) according to the Balthazar CT severity index (CTSI) criteria, respectively. We studied the values of these two different classification criterias in assessing the prognosis of SAP, such as length of hospital stay, fever days, fasting days, white blood cell recovery days, serum amylase recovery days, pancreatic pseudocyst, organ failure, need for transit operations, and death. By studying the receiver operating characteristic (ROC) curves, which were drawn based on the results above, we compared the values of these two different classification criteria in assessing the prognosis of SAP.ResultThe Balthazar classification criteria was valuable in assessing white blood cell recovery days (F=4.035,P=0.023) and pseudocyst (X2=8.066, P=0.018). No statistical differences were found, however, between other clinicopathological parameters and the prognosis of SAP, according to the Balthazar classification criteria. The patients with low-grade of CTSI classification criteria enjoyed better prognosis, and patients in grade A or B got lower incidence of organ failure, need for transit operations and pseudocyst than that in grade C. The results above suggested that CTSI classification criteria, comparing with Balthazar CT classification criteria, was more valuable in predicting the incidence of organ failure, pseudocyst, need for transit operation, and mortality in SAP.ConclusionThe CTSI classification criteria have a great value in assessing the prognosis of SAP.