Clinical trial · Observational
Catheter Tip Position and Contrast Distribution Following Paravertebral Catheter Insertion: a CT Study
NCT07064317CI-TRIAL-00092088completedClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
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.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Cancer Patients | — | UNRESOLVED | — |
Interventions
Interventions (0)
Data not yet available
No intervention recorded.
Design
Arms and outcomes
Arms (0)
[]Primary outcomes (1)
- measure
- Paravertebral catheter tip position
- timeFrame
- 1 Day of breast surgery
- description
- 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.
Secondary outcomes (1)
- measure
- Paravertebral contrast distribution
- timeFrame
- 1 Day of breast surgery
- description
- Postoperatively, patients received a CT scan with 0.1 mL of contrast dye (Iomeron, iomeprol, Bracco) to evaluate the catheter tip position. Only patients with a catheter in the paravertebral space received a second bolus of 1 mL contrast dye and 9 mL saline 0.9%. Two anesthesiologists independently evaluated the catheter tip position across the different anatomical areas close to the paravertebral space. Additionally, the contrast distribution was assessed in the anteroposterior and craniocaudal direction of catheters with a paravertebral catheter tip position. Paravertebral space locations: Anterior paravertebral: Between the anterior and posterior borders of the vertebral corpus. 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, Intercostal and Pleural: Standard anatomical definitions applied.
Eligibility
Eligibility (as posted)
- Sex
- Female
Show eligibility criteria text
Inclusion Criteria: * Breast surgery patients who received a paravertebral catheter at Clinique Sainte-Anne Saint Rémi, Brussels, Belgium, between January 2010 and January 2012 Exclusion Criteria: * None
References
Publications (0)
Data not yet available
No reference posted for this study.