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ESP Block for Postoperative Analgesia in URS Surgery

NCT06826833 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 70

Last updated 2026-02-19

No results posted yet for this study

Summary

The goal of this clinical trial is to determine whether the erector spinae plane (ESP) block provides better pain relief after flexible ureterorenoscopy (URS) surgery compared to standard analgesia alone. Researchers want to know:

Does the ESP block reduce pain levels in the first 24 hours after surgery?

Does it lower the need for opioid pain medication?

Does it reduce the need for additional (rescue) pain treatment?

Does it decrease the likelihood of postoperative nausea and vomiting (PONV)?

Participants will be randomly placed into one of two groups:

ESP Block Group: Participants will receive an ESP block using 20 mL of 0.25% bupivacaine under ultrasound guidance before surgery.

Control Group: Participants will receive standard pain management without a nerve block.

All participants will receive general anesthesia during surgery and multimodal pain management after surgery. Researchers will compare pain scores, opioid use, rescue analgesic needs, and the occurrence of nausea and vomiting between the two groups.

Conditions

  • Analgesia
  • Postoperative Pain Management
  • Nephrolithiasis

Interventions

PROCEDURE

Erector Spinae Plane (ESP) Block

A regional anesthesia technique in which 20 mL of 0.25% bupivacaine is injected under ultrasound guidance at the T8-T10 level to provide postoperative pain relief.

Sponsors & Collaborators

  • Namik Kemal University

    lead OTHER

Principal Investigators

  • Ayhan Şahin, Assoc. Prof. · Namik Kemal University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-02-20
Primary Completion
2025-08-20
Completion
2025-08-20

Countries

  • Turkey (Türkiye)

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 NCT06826833 on ClinicalTrials.gov