[Hemodynamics in transurethral operations under peridural anesthesia].
Three types of cardiovascular system response were revealed in course of transurethral surgery. In the first 10-20 min after peridural anesthesia there was a decrease in total peripheral vascular resistance in all patients. This provided a positive effect in 84% of them as evidenced by normalized blood pressure, heart rate and cardiac output. In 8% of the operated on, lower total peripheral vascular resistance caused dangerous hypotension due to their weak compensatory mechanisms. 8% had a two-phase blood pressure decrease: firstly its decrease to subnormal levels was associated with lower total peripheral vascular resistance, but a repeated decrease (30-40 min later) in blood pressure to a critical level was initiated by a reduction in cardiac output and depletion of compensatory mechanisms, perhaps, due to a surgical hemorrhage. The both types of hemodynamic destabilization were easily corrected by an alpha-adrenomimetic drug (mezaton) infusions and graded intravenous administration. In case of a proper hemodynamic correction, the peridural anesthesia secured an optimal regime for the function of cardiovascular, respiratory and central nervous systems.
Dzhokhadze
A D
AD
Managadze
L G
LG
D000368:Aged; D000369:Aged, 80 and over; D000767:Anesthesia, Epidural / Q000379:methods; D002320:Cardiovascular Physiological Phenomena; D006439:Hemodynamics / Q000187:drug effects* / Q000502:physiology; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D014551:Urinary Tract / Q000601:surgery*
Gemodinamika pri transuretral'nykh operatsiiakh v usloviiakh peridural'noĭ anestezii.