Investigation of the Distance of the Needle Entry Point From the Anus and the Depth to Reach the Pudendal Nerve in Pudendal Nerve Block Application in Children
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 50
- 试验地点
- 1
- 主要终点
- Horizontal distance from anus to needle insertion point and Depth from skin surface to pudendal nerve
研究概览
简要总结
This prospective observational study aims to investigate the relationship between anatomical parameters-specifically the distance from the anus to the needle insertion point and the depth required to reach the pudendal nerve-during neurostimulation-guided pudendal nerve block and patients' age, height, and weight in children undergoing penile surgery.
详细描述
The pudendal nerve originates from the sacral nerve roots Sacral2-Sacral4 and provides sensory and motor innervation to the penile and perineal regions. Effective postoperative analgesia is essential in pediatric penile surgeries. Pudendal nerve block may provide longer-lasting and more effective analgesia compared to caudal or penile blocks.
However, due to age- and size-related anatomical variability in children, data regarding optimal needle insertion distance and depth to reach the pudendal nerve are limited. In this study, neurostimulation will be used to confirm pudendal nerve localization, and anatomical measurements will be analyzed in relation to demographic parameters.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 1 Year 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Children aged 1-18 years
- •Scheduled for penile surgery (e.g., hypospadias, phimosis)
- •Planned to receive neurostimulation-guided pudendal nerve block
- •Patient and parents/legal guardians willing to participate under general anesthesia
排除标准
- •Patients with incomplete measurement data
- •Cases where successful nerve block cannot be performed or nerve stimulation is not detectable at currents ≥1.5 mA
- •Patients or parents/legal guardians who refuse pudendal nerve block
- •Patients with pelvic deformities or neuromuscular disorders
研究组 & 干预措施
Pediatric Penile Surgery Cohort
Children aged 1-18 years undergoing penile surgery with neurostimulation-guided pudendal nerve block; anatomical measurements of needle insertion distance from anus and nerve depth are recorded.
干预措施: Neurostimulation-Guided Pudendal Nerve Block (Procedure)
结局指标
主要结局
Horizontal distance from anus to needle insertion point and Depth from skin surface to pudendal nerve
时间窗: During pudendal nerve block procedure
The horizontal distance from the anus to the needle insertion point is measured in centimeters for each patient using neurostimulation-guided pudendal nerve block. Measurements are recorded separately for the right and left sides.The depth from the skin surface to the pudendal nerve is measured in centimeters using neurostimulation guidance. Measurements are recorded separately for the right and left sides. The relationship of this distance and the association of nerve depth with patient age, height, and weight will be analyzed.
次要结局
未报告次要终点
研究者
Münevver Kayhan
Lecturer
Istanbul University - Cerrahpasa