[Surgical strategy for suppurative complications of pancreatic necrosis]

Severe acute pancreatitis is one of the most difficult problems in emergency abdominal surgery. Mortality among patients with this disease ranges from 20 to 80 percent. The use of staged surgical intervention in the treatment of purulent complications of acute severe pancreatitis may affect not only the risk of open surgery, but also the number of post-operative complications.

Improving the results of treatment of patients with infected pancreatic necrosis by applying a step by step surgical approach and comprehensive correction of endotoxicosis.

The study was retrospectively prospective. All patients were divided into two clinical groups. The control group for the period from 2018 to 2019 included 31 patients for whom the standard surgical tactics of treating pancreatic necrosis were used: laparotomy, necrsecestrectomy and drainage of parapancreatic fluid accumulations, and, if necessary, repeated sanation. The main group included 26 patients, treated from 2019 to 2020. According to the developed step-by-step approach with the application of the correction of endogenous intoxication and enteral insufficiency syndrome. The choice of surgery for the patients of the main group depended on the type of parapancreatic fluid accumulation and included minimally invasive interventions in the first stage and, if necessary, the expansion of the amount of interventions (puncture and drainage under ultrasound control + video assisted retroperitoneal debridement, or ultrasound-controlled puncture and drainage + laparotomy).

The effectiveness of the treatment in both groups was determined by changes in blood leukocyte and C-reactive protein values on the day of the operation, as well as on the 2nd, 4th, 6th day of the post-operative period. By the fourth day after the surgery, the main group patients' white blood cell and CRP blood levels were positively lower than in the control group: p=0.0001, t=9.65 and p=0.0001, t=9.02, respectively. Forty-eight hours after the operation, the dynamics of the EIS were determined. In the control group, where standard methods of treating enteral insufficiency were used, there was an increase in the number of patients with II and III degrees of severity, in comparison with patients of the main group (p<0.05). The number of complications of pancreonecrosis of IIIb and IVb of degrees on the Clavien-Dindo scale in patients of the major group was lower than in the control group: χ²=0.00021, p<0.05 and χ²=0.01553, p<0.05, respectively. 10 (32.3%) died in the control group, 2 (7.7%), χ²=0.04739, p<0.05.

The choice of surgical intervention for pancreonecrosis should be determined taking into account the development phase of the disease, the type of location of the purulent-necrotic sinuses, and its delimitation from surrounding tissues. Phased surgical treatment with the initial application of minimally invasive technologies affects the number and severity of post-operative complications as well as the early start of correction of enteric insufficiency syndrome - the early relief of endogenous intoxication.