[Anastomosis using the Valtrac ring--pro and con].

Authors present their experiences with the gastrointestinal anastomosis construction with the biofragmentable ring (Valtrac). Between May 1995 and June 1999 they used it in the group of 75 patients with mean age 58.4 (range 19-59) years.

Iatrogenic injuries of large vessels.

At the beginning of the article the authors emphasized that the frequency of iatrogenic injuries of great vessels is very high now. They draw attention to the damage caused in coincidence with invasive diagnostic or therapeutic methods. The iatrogenic injuries are brought about during extensive operations due to advanced tumors, during transplantations and extensive reconstructive or corrective operations.

[Treatment of cholecysto-choledocholithiasis in the present era of minimally invasive laparoscopic surgery].

The authors try to contribute to the solution of the problem of cholecystolithiasis associated with choledocholithiasis. Nowadays in the era when choledochilithiasis is treated by low-invasion methods the solution has a different character. The majority of gallstones is symptomatic, their verification and removal by the endoscopic route is not associated with major problems.

[Laparoscopic peroperative cholangiography--indications and significance].

The authors have performed 35 peroperative laparoscopic cholangiographies by means of transcystic cannylation of the choledochus in 410 patients subdued to laparoscopic cholecystectomy. Choledocholelithiasis was found in 8 patients (22.85%).

[Importance of close interdisciplinary cooperation in the treatment of diseases of the thyroid gland].

The authors reflect on the importance of interdisciplinary collaboration when resolving problems of the diagnosis and treatment of diseases of the thyroid gland. In 1989-1993 at the First Surgical Clinic of the Kosice Hospital 189 patients were operated on account of thyroid disease. During the last year the number of operations increased substantially due to better cooperation.