Catheter Tip Position and Contrast Distribution Following Paravertebral Catheter Insertion: a CT Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 31
- 试验地点
- 1
- 主要终点
- Paravertebral catheter tip position
研究概览
简要总结
This retrospective study aims to assess the impact of paravertebral catheter insertion depth on the final anatomical position of the catheter tip. Another objective is to characterize the contrast distribution patterns through paravertebral catheters verified to reside within the thoracic paravertebral space.
详细描述
The effectiveness of a continuous thoracic paravertebral block depends on optimal catheter tip placement and adequate distribution of local anesthetic. This study evaluated the relation between the catheter insertion depth and the final anatomical position of the catheter tip. Additionally, contrast distribution patterns were assessed for catheter tips residing within the thoracic paravertebral space.
Ultrasound-guided paravertebral catheters were inserted at multiple catheter insertion depths beyond the needle tip in 31 patients undergoing breast surgery. Post-mobilization computed tomography (CT) imaging was used to determine the catheter tip location. Catheter tips with a confirmed position in the paravertebral space were further analyzed for contrast distribution.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Breast surgery patients who received a paravertebral catheter at Clinique Sainte-Anne Saint Rémi, Brussels, Belgium, between January 2010 and January 2012
排除标准
- 未提供
结局指标
主要结局
Paravertebral catheter tip position
时间窗: 1 Day of breast surgery
Postoperatively, patients underwent CT scanning with 0.1 mL of contrast dye (Iomeron, iomeprol, Bracco) to precisely determine the catheter tip position and permit adjustments if needed. Two anesthesiologists independently evaluated the CT images with regards to the insertion level, depth relative to the lamina, and catheter tip location in relation to key anatomical structures. Tip locations were defined as paravertebral or non-paravertebral. Different locations were identified for both the paravertebral and the non-paravertebral spaces. Paravertebral space locations: Anterior paravertebral: Between the anterior and posterior borders of the vertebral corpus. Periforaminal paravertebral: Within 1 cm of the foramen. Posterior paravertebral: From the foramen to the articular process. Non-paravertebral locations: Prevertebral: Anterior to the vertebral body. Intramuscular: Posterior to the lamina within the erector spinae muscles. Epidural and Pleural: Standard anatomical definition.
次要结局
- Paravertebral contrast distribution(1 Day of breast surgery)
研究者
Imré Van Herreweghe
Anesthesiologist, Principle Investigator
Ziekenhuis Oost-Limburg