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Ultrasound- Guided Retro Superior Costotransverse Ligament (SCTL) Compartment Block

NCT05235815 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2024-04-16

No results posted yet for this study

Summary

Thoracic paravertebral block (TPVB) is a regional anaesthetic technique that produces ipsilateral, segmental, somatic and sympathetic nerve blockade of multiple contiguous thoracic dermatomes. Although it is a safe technique, the needle tip comes close to the pleura during the injection, therefore, increasing the potential for pleural puncture and pneumothorax, especially when performed by inexperienced physicians. With the recently described retro superior costotransverse ligament (SCTL) compartment (using MRI) which has been shown to be in direct continuity with the intervertebral foramen, the investigators propose that the block needle need not pierce the SCTL and lie close to the pleura but can be positioned safely behind the ligament to deposit the local anaesthetic (LA). Therefore, this study aims to describe the sonoanatomy of the retro SCTL compartment and evaluate the block injection technique and sensory dynamics in patients scheduled for video-assisted thoracoscopic surgery (VATS).

Conditions

  • Thoracic Surgery, Video-Assisted

Interventions

PROCEDURE

Retro SCTL compartment block

For phase 1, healthy human volunteers will be positioned in the lateral position with the side to be scanned in the non-dependent position. An ultrasound scan sequence to describe the retro SCTL space will be performed on both sides. During phase 2, participants who are scheduled for video-assisted thoracoscopic surgery (VATS) will receive an ultrasound-guided multi-level (T3-4, T5-6 and T7-8) retro SCTL compartment block. After positioning the participants, cleaning and draping the injection site, under sterile aseptic precautions and local anaesthetic infiltration, the block needle is inserted at the corresponding vertebral level (T7-T8) under ultrasound guidance in-plane to the ultrasound beam. Once the needle tip reaches the lateral aspect of the inferior articular process and behind the SCTL ligament, the desired volume (6ml/each level) of LA will be injected. This process will be continued at the remaining two vertebral levels (T5-T6 and T3-T4).

Sponsors & Collaborators

  • Chinese University of Hong Kong

    lead OTHER

Principal Investigators

  • Manoj K Karmakar, MD · Chinese University of Hong Kong

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-05-17
Primary Completion
2024-03-13
Completion
2024-03-20

Countries

  • Hong Kong

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05235815 on ClinicalTrials.gov