الفهرس 
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Abstract
Summary
Reducing the duration of hospital stay is becoming more important, especially for in-patients. Therefore, in lower abdominal operations performed under spinal anaesthesia, early ambulation as a consequence of a shorter duration of motor block is considered desirable. In the past, hyperbaric lignocaine 50 mg/ml was commonly used for spinal anaesthesia for short surgical procedures, but its use has declined because of concerns about cauda equina syndrome and transient neurological symptoms(Koltka et al., 2009).
This study was conducted at Beni-Suef University Hospital to compare spinal anesthesia using hyperbaric prilocaine 2% and hyperbaric bupivacaine 0.5% for children undergoing lower abdominal surgery. The mean age of patients in prilocaine group was 6.00±2.12 and most of them were males (68.0 %) with average body weight 19.24±5.08. Also, patients in bupivacaine group had a mean age of 5.88±2.13 and most of them were males (76.0%) with average weight 19.12±5.14. There was no significant difference between the studied groups regarding their age, sex, and body weight.
The mean operative time for patients in prilocaine group was 39.12±8.17min and for patients in bupivacaine group was 40.32±8.73 min. There was no significant difference between the studied groups regarding the operative time and without clinical significance as both groups were less than 70 min.
The main finding in our study was that spinal anesthesia for lower abdominal surgeries in children with prilocaine 2% provides faster block onset compared with bupivacaine 0.5% spinal anesthesia (4.44±0.51 min - 6.44±1.12 min) respectively. in our study, sensory block level after 10min was significantly higher in prilocaine group than in bupivacaine group. regarding time to return to bromage 0; the current study demonstrated that it was shorter in prilocaine group than in bupivacaine group (73.40±3.74 min versus 117.00±20.92 min).
In the current study; there was a significant longer time for ambulation in the bupivacaine group than the prilocaine group.The mean ambulation time for patients in prilocaine group was 78.00±3.82min and for patients in bupivacaine group was122.00±20.92 min. The time of urine voiding was also significantly longer in bupivacaine group to reach a mean 131.60±20.55 min while for patients in prilocaine group it was 88.00±3.82 min.
In the current study; there was high satisfaction rate for surgeons in both groups. The majority of surgeons in prilocaine group and bupivacaine group (96.0%, 92.0% respectivelt) were very satisfied of anaesthesia.