NCT07433140

Effect of Rectus Block Timing on Opioid Use

The Effect of Timing of Rectus Sheath Blockade During Robotic Prostate Surgery on Opioid Consumption: A Randomized Double-Blind Study

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 50 (estimated)
• Sponsor: Koc University Hospital · Academic / Other
• Sex: Male
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The aim of this study is to observe the effect of administering local anesthetic to the abdominal wall at the beginning or end of surgery under general anesthesia on opioid consumption during surgery. The hypothesis of this study is to demonstrate that administering a rectus sheath block before the surgical procedure under general anesthesia is effective in reducing intraoperative opioid consumption and opioid-related side effects compared to administering it after the surgery is completed.

Conditions

• Prostate Cancer
• Pain Management
• Nociception Level Index(NoL)
• Nociception Monitoring
• Opioid Consumption

Interventions

Type	Name	Description
PROCEDURE	Early bilateral rectus sheat block	Bilateral rectus sheat block will be performed after the anesthesia induction, before the start of the surgery
PROCEDURE	Late bilateral rectus sheat block	Bilateral rectus sheat block will be performed after the completion of the surgery, before the end of general anesthesia

Timeline

• Start date: 2026-03-15
• Primary completion: 2026-06-15
• Completion: 2026-07-01
• First posted: 2026-02-25
• Last updated: 2026-02-25

Locations

1 site across 1 country: Turkey (Türkiye)