İn this study; it was aimed to investigate the effects of equipotent doses of hyperbaric
bupivacaine and hyperbaric levobupivacaine in outpatient anorectal surgery under saddle
block. Sixty patients between the age of 18- 50 and in the risk group of ASA I-II included in
the study. 7,5 mg of 0,5% hyperbaric bupivacaine or 7,5 mg of 0,5% hyperbaric levobupivacaine
injected into the intrathecal space in sitting position through L4-L5 or L5-S1 intervertebral
space in 30 seconds. All patients kept in sitting position for 5 minutes with aid after
intrathecal injection and than layed in supine position, finally they positioned in prone
jack-knife. Hemodynamic parameters like NIBP, HR, SpO2, sensory and motor block
characteristics, duration of analgesia, time of first voiding, mobilization time, patient and
surgeon satisfaction, adverse effects and discharge time were recorded during and after
surgery.