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Results of surgical treatment of 310 patients with inguinal hernias were analyzed depending on hernioplasty method. Advantages of hernioplasty methods without tissues tension over traditional ones were demonstrated. Indications and contraindications of each method were determined. Algorithm of individual choice of surgery method for inguinal hernias has been developed.

The results of differential diagnosis of hemorrhage fever with renal syndrome and acute surgical diseases of abdominal organs in 1250 patients were analyzed. It was revealed that the course of the disease was similar to acute abdomen in 13.2% of them. The combination of fibrogastroduodenoscopy and diagnostic laparoscopy is optimal for differential diagnosis and permits to reveal typical symptoms of hemorrhage fever with renal syndrome.

Minimally invasive technologies were used in treatment of 89 patients with cholelithiasis complicated by mechanical jaundice and purulent cholangitis. Advantages of the two-stage operative treatment of such patients were shown. The first stage is decompression of the bile duct, the second stage is a radical operation either by laparoscopic or minilaparotomic methods. It allows to avoid extensive and traumatic operations and secures better immediate and long-term results of treatment.

Results of treatment of 89 patients with cholelithiasis complicated by obstructive jaundice and purulent cholangitis using the minimally invasive technologies are analyzed. The advantages of two-stages surgical treatment of these patients are demonstrated. The decompression of biliary tract are performed as the first stage, radical operations by laparoscopy or minilaparotomy--as the second stage. This method permits to refuse the large and traumatic operations and to improve significantly the nearest and long-term results of treatment.

An investigation was performed on 52 corpses of humans in order to study possibilities of anterior extransphincteral descending of the colon in performing restorative operations after Hartman resection of the rectum. Advantages of the new method of operation along the tunnel for the descending and necessary length of the colotransplant for excessive descending were established. The technique developed proved to have advantages over the well-known methods. The advantages were confirmed in 25 restorative operations in the clinic.

Results of a dynamic endoscopic examination of 213 patients after operations of suturing perforating gastric and duodenal ulcers are described. Stable healing of the ulcer was obtained in 20.2% of the patients. In 79.8% of the patients the ulcer failed to heal or recidivated. A comparison of roentgen findings and results of endoscopic examinations has shown that roentgen analysis gave the correct diagnosis but in 44.7% of the patients examined.

Novokain retroperitoneal blockades were used in 150 patients with non-specific ulcerative colitis, diverticulosis and functional disturbances of the colon. The blockades allowed improving results of the treatment, normalizing the motor function, cupping off the inflammatory process, shortening the time of staying at the hospital.

In examination of 100 patients after operations on the abdominal organs, a high incidence of disorders in function of the esophagogastric junction was noted. Their timely diagnosis and rational correction are the urgent problem in the abdominal surgery.

Results of the surgical treatment of perforations of asymptomatic ulcers of the stomach and duodenum in 63 patients are analyzed. Closure of the perforation opening is thought by the authors to be operation of choice in the treatment of such ulcers. Good and satisfactory results were obtained in 83% of the observations.