Efeitos da adiçåo de epinefrina à bupivacaína isobárica em anestesia subaracnóidea / Effects of added epinephrine on spinal anesthesia with isobaric bupivacaine

ABSTRACT

The effects of epinephrine added to 0,5 por cent isobaric bupivacaine for spinal anesthesia were investigated in 96 patients ASA Physical Status I or II, aged 15-87 years old, undergoing surgeries below T12. Patients classified in Group A (n=48) received 15 mg of 0,5 por cent isobaric bupivacaine and patients classified in Group B (n=48) received 0,2 mg of epinephrine added to 15 mg of isobaric bupivacaine. The response to the pinprick stimulation did not show significant differences in times to achieve analgesia in L3-L4 and T12 and no differences were observed in terms of cephalic spread of the anesthesia and incidence of complications. Howerever, significant prolongtion of motor block observed in Group B patients who received epinephrine added to isobaric bupivacaine