مقايسه اثرات هموديناميك بي حسي اسپاينال يك طرفه با دو طرفه با بوپيواكايين

HEMODYNAMIC EFFECTS OF UNILATERAL SPINAL ANESTHESIA COMPARED WITH BILATERAL USING BUPIVACAINE

Introdouction: Study for distribution of local Anesthetics is subarachnoid space, lead us to reduce this distribtion and thereby minimize sympathetic block to restrict hemodynamic alterations. This is executable with using hyperbaric solutions in the lateral decubitus position. Method & Material: During this prospective double blind trial, 50 patients between 40-70 years old age with ASA I-II candidated for hip joint surgery has randomised undergone unilateral or bilateral spinal anesthesia. After determining level of block (TI0+1) vital signs recorded 1,2,3,4,5,10,15,30,45 minutes after sympathetic denervation. Results: Mean decrease in blood pressure during unilateral block was 11.91% compared with 20.16% in bilateral group. Mean bradycardia was 8.12% in unilateral block compared with 8.8% in bilateral group. T-test reveals significant difference in hypotension between two group. Discussion: thus, restriction of sympathetic block during unilateral spinal anesthesia reduces hemodynamic alterations specially blood pressure.