Catheter Tip Position and Contrast Distribution Following Paravertebral Catheter Insertion: a CT Study

NCT07064317 | Completed

• 1 other identifier: 2024/326
• Study Type: observational
• Target: 31
• Locations: 1 country
• Sites: 1

Brief Summary

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

Breast Cancer Patients

Keywords

Thoracic paravertebral catheter; Ultrasound-guided paravertebral block; Catheter depth; Breast cancer patient; CT imaging; Catheter tip position; Mobilization; Contrast distribution; Spread

Outcome Measures

Primary Outcomes (1)

• Paravertebral catheter tip position

  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.

  1 Day of breast surgery

Secondary Outcomes (1)

• Paravertebral contrast distribution

  1 Day of breast surgery

Eligibility Criteria

• Sex: female
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Patients who received a paravertebral catheter at Clinique Sainte-Anne Saint Rémi, Brussels, Belgium, between January 2010 and January 2012.

You may qualify if:

• Breast surgery patients who received a paravertebral catheter at Clinique Sainte-Anne Saint Rémi, Brussels, Belgium, between January 2010 and January 2012

You may not qualify if:

• None

Sponsors & Collaborators

• Ziekenhuis Oost-Limburg: lead
• Chirec: collaborator

Study Sites (1)

Clinique Sainte-Anne Saint Rémi

Brussels, Belgium

Location

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Anesthesiologist, Principle Investigator

Study Record Dates

• First Submitted: June 26, 2025
• First Posted: July 14, 2025
• Study Start: January 27, 2010
• Primary Completion: January 25, 2012
• Study Completion: January 25, 2012
• Last Updated: July 14, 2025

Record last verified: 2025-07

Locations

BE (1)