Epidural Anesthesia for Gynecological Surgeries

A Comparative Study Between Dexmedetomidine and Midazolam as Adjuvant to Bupivacaine During Epidural Anesthesia For Elective Gynecological Operations

Regional anesthesia is the preferred mode of anesthesia for major abdominal surgeries in present times. Gynecological surgeries are often associated with severe pain requiring a well-planned analgesia regimen to ensure adequate patient-comfort, early mobilization, and to decrease stay time in the hospital/post-anesthesia care unit (PACU) enabling patients to return to their normal activities quicker. Dexmedetomidine has been approved by Food and Drug Administration (FDA) as a short-term sedative for mechanically ventilated intensive care unit (ICU) patients as it has a sedative effect without significant respiratory depression , anxiolytic, analgesic, antihypertensive and sympatholytic properties. Epidural administration of preservative free midazolam induces antinociceptive effects in humans, when midazolam is added it acts through gamma amino-butyric acid (GABA) receptors and enhances the affinity of GABA receptors. Midazolam is involved in the release of endogenous opioids acting on spinal delta receptors so antinociceptive effects of morphine like substances are potentiated when epidural midazolam is added. Studies have revealed that use of epidural midazolam provides effective analgesia in adults. So, the present study will evaluate the additive analgesic effects of epidural midazolam in combination with bupivacaine in elective gynecologic surgeries and compare the results with the use of bupivacaine with dexmedetomidine and observe the quality of epidural anesthesia with occurrence of side effects.

Study Overview

• Status: Completed
• Conditions: Epidural Analgesics for Comparison
• Intervention / Treatment: Drug: Dexmedetomidine; Drug: Midazolam

• Study Type: Interventional
• Enrollment (Actual): 150
• Phase: Phase 4

Contacts and Locations

Study Locations

• Egypt
  • Cairo, Egypt, 11562
    • Department of Anesthesia, Surgical ICU, and Pain Management

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 55 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• Female patients of ASA I-II.
• Aged 18-55 years undergoing elective gynecological surgeries

Exclusion Criteria:

• Patient refusal.
• Patients with history of diabetes mellitus, cardiac disease, hypertension, chronic obstructive respiratory disease, coagulation abnormalities, spinal deformities, patients allergic to amide type of local anesthetics, localized skin sepsis, neurological disease, hepatic and renal diseases, peripheral neuropathy and psychiatric diseases.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Health Services Research
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Other: Dexmedetomidine; It has a sedative effect without significant respiratory depression , anxiolytic, analgesic, antihypertensive and sympatholytic properties. It is now being used as a neuraxial adjuvant that can be used as an effective adjuvant in epidural anaesthesia as it intensifys the motor block and prolongs the duration of postoperative analgesia.	Drug: Dexmedetomidine; it has a sedative effect without significant respiratory depression , anxiolytic, analgesic, antihypertensive and sympatholytic properties. It is now being used as a neuraxial adjuvant that can be used as an effective adjuvant in epidural anaesthesia as it intensifys the motor block and prolongs the duration of postoperative analgesia.; Other Names: precedex; Drug: Midazolam; Midazolam has been reported to have a spinally mediated analgesic effect. Clinically, single-shot epidural or spinal administration of midazolam has been shown to have an analgesic effect on perioperative pain.
Other: Midazolam; Midazolam has been reported to have a spinally mediated analgesic effect. Clinically, single-shot epidural or spinal administration of midazolam has been shown to have an analgesic effect on perioperative pain.	Drug: Dexmedetomidine; it has a sedative effect without significant respiratory depression , anxiolytic, analgesic, antihypertensive and sympatholytic properties. It is now being used as a neuraxial adjuvant that can be used as an effective adjuvant in epidural anaesthesia as it intensifys the motor block and prolongs the duration of postoperative analgesia.; Other Names: precedex; Drug: Midazolam; Midazolam has been reported to have a spinally mediated analgesic effect. Clinically, single-shot epidural or spinal administration of midazolam has been shown to have an analgesic effect on perioperative pain.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Onset of sensory blockade	time interval from epidural injection of drugs to sensory blockade at T10	Eight months

Collaborators and Investigators

• Sponsor: Cairo University

Study record dates

Study Major Dates

• Study Start (Actual): December 1, 2019
• Primary Completion (Actual): February 1, 2021
• Study Completion (Actual): June 1, 2021

Study Registration Dates

• First Submitted: November 18, 2019
• First Submitted That Met QC Criteria: November 21, 2019
• First Posted (Actual): November 22, 2019

Study Record Updates

• Last Update Posted (Actual): August 3, 2021
• Last Update Submitted That Met QC Criteria: August 1, 2021
• Last Verified: August 1, 2021

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Physiological Effects of Drugs; Adrenergic Agents; Neurotransmitter Agents; Molecular Mechanisms of Pharmacological Action; Central Nervous System Depressants; Peripheral Nervous System Agents; Analgesics; Sensory System Agents; Anesthetics, Intravenous; Anesthetics, General; Anesthetics; Analgesics, Non-Narcotic; Adrenergic alpha-2 Receptor Agonists; Adrenergic alpha-Agonists; Adrenergic Agonists; Tranquilizing Agents; Psychotropic Drugs; Hypnotics and Sedatives; Adjuvants, Anesthesia; Anti-Anxiety Agents; GABA Modulators; GABA Agents; Midazolam; Dexmedetomidine
• Other Study ID Numbers: ME-2001

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No