PLASMA-CATECHOLAMINES UNDER ELECTROSTIMULATION AND NEUROLEPT ANESTHESIA FOR RETINA AND VITREOUS BODY OPERATIONS

  • 1 January 1979
    • journal article
    • research article
    • Vol. 28  (5) , 237-242
Abstract
In 2 groups of patients with normal circulation and metabolism during operations on the retina and vitreous body the concentration of plasma catecholamines was determined. The intensity of stress was compared between electrostimulation anesthesia and neuroleptanaesthesia. Venous blood was sampled before premedication, 30 min after premedication, at the start of surgery, 45-min after the start of surgery and 30 min after extubation. Plasma catecholamines (adrenaline [epinephrine] and noradrenaline [norepinephrine]) were determined using a modified trihydroxyindol-spectrofluorimetric method (combined Batch-technique). There was no relevant difference between the 2 techniques of anesthesia when using the concentrations of plasma catecholamines as an indicator of stress resulting from operation and anesthesia.