[Changes in central hemodynamics in transurethral prostate resection under epidural anesthesia].

Central hemodynamics was studied in 53 patients divided into 3 groups who had transurethral resection of the prostate under epidural anesthesia. Patients with uneventful course of surgery (group 1) had favourable rearrangement of hemodynamic parameters in response to epidural anesthesia. In patients of group 2 hemodynamics was characterized by addition of negative effects of relative hypovolemia. A significant fall of central venous pressure was found in group 3. This low venous pressure resulted from the epidural block and contributed much to development of hyponatremia in these patients.