Features of treatment of severe acute pancreatitis in obese patients

The purpose of the work is to improve the results of treatment of severe acute pancreatitis in obese patients and to develop an algorithm for comprehensive treatment. Materials and methods. Patients with severe acute pancreatitis and obesity (mean BMI 37.48 ± 2.19 kg/m2) were randomized into two groups. In the experimental group (n = 18; step-up approach),early resuscitation with Ringer's lactate solution and ulinastatin in the first 5 days of the disease was used. Unilastatin was administered at a dose of 200,000IU by 1-hourintra­venous infusion TID for 5 days. The first stage of surgery was a drainage under ultrasound control, the second stage (if necessary) was laparos­copic retroperitoneal necrectomy (video-assisted­retroperitoneal debri­de­ment — VARD). Open surgery was performed in case of development of abdominal compartment syndrome. In the control group (n = 18; standard approach), resuscita­tion was performed with 0.9 % sodium chlo­ride solution without ulinastatin. The first stage of surgery was draina­ge under ultrasound control, the second stage was traditional median laparotomy with laparostomy. Results. The use of resuscitation with Ringer’s lactate solution in combination with ulinastatin for 5 days contributed to a decrease of procalcitoninlevels by 1.8 times (2.89 ± 0.88 compared with 1.8 ± 0.23 ng/mg; p = 0.001; α = 0.05). The level of CRP during the period of ulinastatin decreased by 41.68 mg/l (267.28 ± 114.11 compared with 225.6 ± 84.9 mg/l; p = 0.01; α = 0.05). There was a statistically significant difference in procalcitonin levels between groups on the 10th day (1.83 compared with 3.32 ng/mg; p = 0.001; α = 0.05), on the 15th day (1.15 compared with 1 .83 ng/mg; p = 0.001; α = 0.05) and on the 45th day (0.35 compared with 0.55 ng/mg; p = 0.001; α = 0.05). These results confirm the effect of the proposed method of treatment by reducing the risk of infection. Conclusions. The effectiveness of the proposed treatment algorithm is evidenced by a statistically significant difference in the level of CRP between groups on the 10th day (p = 0.035; α = 0.05). The use of VARD in the experimental group as a second stage of surgery is a less traumatic but effective method (p = 0.001; α = 0.05), which reduces the total number of complications (χ² = 4.012; p = 0.046). Evaluation of data «before—after» revealed the effectiveness of treatment by step-up approach (χ² = 5.4; p = 0.021).