الفهرس 
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Abstract
Pain is one of the most common and underdiagnosed medical problems in children. Inadequate pain control during childhood may have long-term negative effects including harmful neuroendocrine responses, disrupted sleep cycles and increased pain perception during subsequent painful experiences. It also can result in an uncooperative and restless child. Hence, it is best to prevent the onset of pain rather than to relieve its existence.
In children, regional anesthesia procedures can be safely used to achieve intra- and postoperative analgesia in all age groups. It is an essential element of a multimodal pain concept and should be performed on children wherever appropriate and possible.
Our study was carried out to compare the effectiveness, duration of post-operative analgesia, and the complications among dorsal penile nerve block (DPNB), caudal nerve block (CNB) and the combination of both.
This study was carried out on 81 male patients, aged from 3-12 years old & undergoing circumcision.
The patients were divided into 3 groups, each is composed of 27 patients; group 1 including DPNB patients, group 2 including CNB patients and group 3 for combined block.
This study compared between the three groups regarding the intra-operative vital data (HR,BP), post-operative VAS scores and the complications (nausea, vomiting, urinary retention, itching, constipation & CNS depression).
Our results concluded that:
1. The demographic data (age, weight & height) does not differ between the three groups of the study.
2. There is difference in the VAS score post operatively, being significantly less in the CNB group.
3. There was no significant difference in the percentage of complications between the groups, except for urinary retention being slightly increased in the CNB group.