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Revised-Paravertebral Nerve Blocks for Enhanced Recovery After Stoma Closure

NCT07571902 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 250

Last updated 2026-05-11

No results posted yet for this study

Summary

After stoma closure, pain remains an important problem affecting patient recovery. A revised paravertebral block (r-PVB) was developed as a single-shot, large-volume intercostal-space injection performed at the exposed mid-axillary ninth to eleventh intercostal level with the patient kept supine after induction of anesthesia. Rather than puncturing the classical paraspinal target near the transverse process with the patient in a prone or lateral position, the r-PVB technique is designed to exploit retrograde spread of local anesthetic from the intercostal space to the paravertebral space, thereby generating a functional paravertebral block while avoiding direct entry into the paravertebral space and the need for specific body positioning. The r-PVB technique addresses several practical limitations of conventional PVB by eliminating the need to reposition an anesthetized patient, using a more accessible and potentially clearer sonographic window, reducing interference from transverse-process shadowing, and facilitating in-plane needle visualization.

Conditions

  • Stoma Closure
  • Postoperative Pain
  • Quality of Recovery

Interventions

PROCEDURE

Revised-Paravertebral Nerve Block

Participants assigned to the intervention group will receive an ultrasound-guided revised paravertebral block (r-PVB) after induction of general anesthesia and before surgical incision. With the patient in the supine position and the ipsilateral arm abducted, a high-frequency linear ultrasound probe is placed at the mid-axillary line to identify the ninth to eleventh intercostal space on the operative side, together with the pleura and intercostal muscle layers. Using an in-plane technique, the block needle is advanced under real-time ultrasound guidance into the plane of the internal intercostal muscle. Correct needle tip placement is confirmed by small test injections producing characteristic pleural displacement on ultrasound. After confirmation, 30 mL of 0.5% ropivacaine is injected into the target plane to achieve a functional paravertebral block. Routine surgery then proceeds.

Sponsors & Collaborators

  • Sixth Affiliated Hospital, Sun Yat-sen University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-04-27
Primary Completion
2027-03-27
Completion
2027-12-31

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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 NCT07571902 on ClinicalTrials.gov