Retrolaminar Block Analgesia and Patient Comfort During Prone ESWL

NCT ID: NCT07177625

Last Updated: 2025-09-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

90 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-09-15

Study Completion Date

2025-11-30

Brief Summary

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The purpose of this prospective, observational study is to evaluate the effect of retrolaminar block (RLB) on patient comfort and analgesic effectiveness during extracorporeal shock wave lithotripsy (ESWL) procedures. The main questions the study aims to answer are:

Does retrolaminar block reduce pain intensity during ESWL?

Does retrolaminar block improve patient comfort during ESWL?

Participants will undergo the following interventions:

RLB Group: Retrolaminar block performed under ultrasound guidance prior to ESWL.

Sedation Group (S): Standard sedoanalgesia administered.

Control Group (C): No additional regional block or sedoanalgesia applied.

Participants will be monitored for pain levels, procedural duration, hemodynamic parameters, and the need for additional analgesics. The study aims to determine whether retrolaminar block can serve as a safe and effective analgesic method during ESWL procedures.

Detailed Description

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This prospective, observational study aims to investigate the effect of retrolaminar block (RLB) on analgesic efficacy and patient comfort during extracorporeal shock wave lithotripsy (ESWL). Adult patients scheduled for ESWL will be enrolled and allocated into three groups:

RLB Group: Retrolaminar block performed under ultrasound guidance prior to ESWL.

Sedation Group (S): Standard sedoanalgesia administered.

Control Group (C): No additional regional block or sedoanalgesia applied.

Pain intensity will be assessed using the Numeric Rating Scale (0-10) at multiple time points during and after the procedure. Procedural duration, hemodynamic parameters, and need for rescue analgesics will also be recorded. Patient comfort and satisfaction will be evaluated immediately post-procedure and at recovery. Safety outcomes, including adverse events related to RLB or sedoanalgesia, will be monitored.

The study seeks to determine whether retrolaminar block is a safe and effective analgesic technique for ESWL, potentially improving patient comfort while reducing systemic analgesic requirements.

Conditions

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Urolithiasis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Group 1: RLB Group - Retrolaminar block prior to ESWL

Participants in this group will receive an ultrasound-guided retrolaminar block prior to prone-position ESWL. The block will be performed using \[specify local anesthetic type and dose\]. All ESWL procedures will be performed according to standard hospital protocols. Patients will be monitored for pain intensity (VAS), vital signs, procedural duration, and any adverse events during and after the procedure. Rescue analgesia will be administered if necessary.

Retrolaminar block

Intervention Type PROCEDURE

Ultrasound-guided retrolaminar block performed prior to prone-position ESWL. This intervention is applied only to participants in the RLB Group. Patients will be monitored for pain intensity (VAS), vital signs, procedural duration, and any adverse events during and after the procedure. Rescue analgesia will be administered if clinically indicated.

Sedation Group - Standard sedoanalgesia

Participants in this group will receive standard sedoanalgesia during prone-position ESWL using \[specify drug(s), dose, and infusion method\]. Pain intensity (VAS), vital signs, procedural duration, and any adverse events will be monitored throughout and after the procedure. Rescue analgesia will be provided as needed according to hospital protocols.

Sedoanalgesia

Intervention Type DRUG

Standard sedoanalgesia administered during prone-position ESWL. This intervention is applied only to participants in the Sedation Group. Pain intensity (VAS), vital signs, procedural duration, and any adverse events will be monitored. Rescue analgesia will be provided as needed.

Control Group - No additional block or sedoanalgesia

Participants in this group will undergo prone-position ESWL without any additional regional block or sedoanalgesia. Standard monitoring of pain intensity (VAS), vital signs, procedural duration, and any adverse events will be conducted. Rescue analgesia will be provided if clinically indicated.

No Intervention / None

Intervention Type OTHER

No additional regional block or sedoanalgesia; standard monitoring only. This applies only to participants in the Control Group. Pain intensity (VAS), vital signs, procedural duration, and any adverse events will be monitored. Rescue analgesia will be provided if clinically indicated.

Interventions

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Retrolaminar block

Ultrasound-guided retrolaminar block performed prior to prone-position ESWL. This intervention is applied only to participants in the RLB Group. Patients will be monitored for pain intensity (VAS), vital signs, procedural duration, and any adverse events during and after the procedure. Rescue analgesia will be administered if clinically indicated.

Intervention Type PROCEDURE

Sedoanalgesia

Standard sedoanalgesia administered during prone-position ESWL. This intervention is applied only to participants in the Sedation Group. Pain intensity (VAS), vital signs, procedural duration, and any adverse events will be monitored. Rescue analgesia will be provided as needed.

Intervention Type DRUG

No Intervention / None

No additional regional block or sedoanalgesia; standard monitoring only. This applies only to participants in the Control Group. Pain intensity (VAS), vital signs, procedural duration, and any adverse events will be monitored. Rescue analgesia will be provided if clinically indicated.

Intervention Type OTHER

Other Intervention Names

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RLB Group

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 years
* ASA Physical Status I-III
* Undergoing ESWL in prone position
* Provided written informed consent

Exclusion Criteria

* ASA Physical Status IV or higher
* Allergy to local anesthetics or sedatives
* Coagulopathy or anticoagulant use
* Local infection at injection site
* Severe spinal deformity or anatomical abnormality preventing block
* Cognitive impairment or inability to use VAS
* Pregnancy
* Chronic opioid use or chronic pain medication
* Emergency ESWL
* Previous open surgery at block site
* Intraoperative hemodynamic instability or severe complications
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Elazıg Fethi Sekin Sehir Hastanesi

OTHER

Sponsor Role lead

Responsible Party

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Serpil Bayındır

Specialist Doctor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Elazığ Fethi Sekin City Hospital

Elâzığ, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

Central Contacts

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Serpil Bayındır, Specialist Physician / Anesthe

Role: CONTACT

+905055493582

Facility Contacts

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Serpil Bayındır, MD

Role: primary

05055493582

Other Identifiers

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FSCH-SBÜ-2025/09

Identifier Type: -

Identifier Source: org_study_id

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