Intra-abdominal pressure monitoring in predicting outcome of patients with severe acute pancreatitis

Wei-Fang Zhang, Yun-Lan Ni, Ling Cai, Tong Li, Xue-Ling Fang, Yun-Tao Zhang
Hepatobiliary & Pancreatic Diseases International: HBPD INT 2007, 6 (4): 420-3

BACKGROUND: Severe acute pancreatitis (SAP) is a serious disease with many complications, high mortality and poor prognosis. It is characterized by rapid deterioration and poses one of the most difficult challenges in clinical practice. Previous investigations suggest that SAP is one of the main causes of intra-abdominal pressure (IAP) increase. The aim of this study was to evaluate the utility of IAP-monitoring in predicting the severity and prognosis of SAP.

METHODS: Eighty-nine patients with SAP who had been treated from February 2001 to December 2005 were studied. Since bladder pressure accurately reflects IAP, we measured it instead of IAP. Bladder pressure was measured at the time of admission and every 12 hours in the course of the disease, 9 consecutive times in all. The APACHE II scores of all patients were obtained within 24 hours after admission. According to a maximum bladder pressure <10 cmH2O, all patients were divided into two groups, mildly-elevated and severely-elevated. Mortality and mean APACHE II scores in the two groups were calculated. In addition, the mean bladder pressure and APACHE II scores in survivors were compared with those in deaths.

RESULTS: Sixty-eight of the 89 patients were in the severely-elevated group. Mortality and mean APACHE II scores in this group were much higher than those in the mildly-elevated group (mortality, 39.71% vs. 9.52%; mean APACHE II score, 23.15+/-7.42 vs. 15.95+/-5.35, P<0.01). The mean bladder pressures and APACHE II scores in deaths were significantly greater than those in survivors (mean bladder pressure, 14.1+/-3.8 vs. 9.2+/-2.3 cmH2O, P<0.01; mean APACHE II score, 27.83+/-4.87 vs. 18.37+/-6.74, P<0.01).

CONCLUSION: It is suggested that IAP may be used as a marker of the severity and prognosis of SAP.

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