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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
50
Bilateral rectus sheat block will be performed after the anesthesia induction, before the start of the surgery
Bilateral rectus sheat block will be performed after the completion of the surgery, before the end of general anesthesia
Koc University Hospital
Istanbul, Turkey (Türkiye)
Total intraoperatif remifentanil consumption
Time frame: Total operative duration
Average intraoperative remifentanil consumption
Total intraoperative remifentail consumption divided by the weight of the patient (kg) and total operative duration (minutes). (mcg/kg/dk)
Time frame: Total operative duration
Cumulative opioid consumption at postoperative 1st hour
Cumulative opioid consumption at postoperative 1st hour in IV morphine equivalent
Time frame: From the end of the surgery to the end of the first postoperative hour
Cumulative opioid consumption at postoperative 6th hour
Cumulative opioid consumption at postoperative 6th hour in IV morphine equivalent
Time frame: From the end of the surgery to the end of the 6th postoperative hour
Cumulative opioid consumption at postoperative 12th hour
Cumulative opioid consumption at postoperative 12th hour in IV morphine equivalent
Time frame: From the end of the surgery to the end of the 12th postoperative hour
Cumulative opioid consumption at postoperative 24th hour
Cumulative opioid consumption at postoperative 24th hour in IV morphine equivalent
Time frame: From the end of the surgery to the end of the 24th postoperative hour
Pain at postoperative first hour
Pain measured by Numeric Rating Scale (0-10)
Time frame: At the end of the postoperative 1st hour
Pain at postoperative 6th hour
Pain measured by Numeric Rating Scale (0-10)
Time frame: At the end of the postoperative 6th hour
Pain at postoperative 12th hour
Pain measured by Numeric Rating Scale (0-10)
Time frame: At the end of the postoperative 12th hour
Pain at postoperative f24th hour
Pain measured by Numeric Rating Scale (0-10)
Time frame: At the end of the postoperative 24th hour
Rescue analgesia
Total rescue fentanyl administered (mcg)
Time frame: From the end of the surgery to the end of the first postoperative hour
Patient satisfaction
Patient satisfaction reported by the patient in a scale from 1 to 5
Time frame: At the end of the 24th postoperative hour
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