Do Increasing Preoperative Timing of Single Dexmedetomidine Dose Have an Effect on Stress Response of Laryngoscopy and Intubation?

NCT ID: NCT07165483

Last Updated: 2025-09-12

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

RECRUITING

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-09-11

Study Completion Date

2026-03-01

Brief Summary

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This study aims to evaluate the effect of increasing preoperative timing of single dexmedetomidine on the stress response of laryngoscopy and intubation.

Detailed Description

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Maintaining hemodynamic stability during surgery is one of the most important tasks because good anesthesia increases the success rate of surgery and improves postoperative prognosis.

Dexmedetomidine, a potent α2-adrenoreceptor agonist, produces not only a sedative-hypnotic effect, but in situations involving cardiac risk, it also produces analgesic effects and an autonomic blocking effect, by acting on a single type of receptor.

Conditions

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Time Dexmedetomidine Stress Response Laryngoscopy Intubation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Group D20

Patients will receive 0.5µg/kg dexmedetomidine (over 10 min) 20 min before induction of anesthesia then saline (over 10 min) 10 min before induction of anesthesia.

Group Type EXPERIMENTAL

Dexmedetomidine

Intervention Type DRUG

Patients will receive 0.5µg/kg dexmedetomidine (over 10 min) 20 min before induction of anesthesia then saline (over 10 min) 10 min before induction of anesthesia.

Group D10

Patients will receive saline (over 10 min) 20 min before induction of anesthesia then 0.5µg/kg dexmedetomidine (over 10 min) 10 min before induction of anesthesia.

Group Type EXPERIMENTAL

Dexmedetomidine

Intervention Type DRUG

Patients will receive saline (over 10 min) 20 min before induction of anesthesia then 0.5µg/kg dexmedetomidine (over 10 min) 10 min before induction of anesthesia.

Group C

Patients will receive saline before induction of anesthesia as a control group.

Group Type PLACEBO_COMPARATOR

Saline

Intervention Type DRUG

Patients will receive saline before induction of anesthesia as a control group.

Interventions

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Dexmedetomidine

Patients will receive 0.5µg/kg dexmedetomidine (over 10 min) 20 min before induction of anesthesia then saline (over 10 min) 10 min before induction of anesthesia.

Intervention Type DRUG

Dexmedetomidine

Patients will receive saline (over 10 min) 20 min before induction of anesthesia then 0.5µg/kg dexmedetomidine (over 10 min) 10 min before induction of anesthesia.

Intervention Type DRUG

Saline

Patients will receive saline before induction of anesthesia as a control group.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Age from 18 to 65 years.
* Both sexes.
* American Society of Anesthesiology (ASA) physical status I-II.

Exclusion Criteria

* Severe cardiovascular problems.
* Respiratory disorders.
* Diabetes.
* Hypertension.
* Obesity.
* Allergic reaction to study drugs.
* Patients on antihypertensive medication (α-methyldopa, clonidine, or other α2-adrenergic agonists)
* Medications that affect heart rate (HR) or blood pressure (BP).
* Pregnant.
* Currently breast-feeding women.
* History of sleep apnea.
* Those for emergency procedures.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Tanta University

OTHER

Sponsor Role lead

Responsible Party

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Mohammed Said ElSharkawy

Lecturer of Anesthesiology, Surgical Intensive Care and Pain Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt.

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Tanta University

Tanta, El-Gharbia, Egypt

Site Status RECRUITING

Countries

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Egypt

Central Contacts

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Mohammed S Elsharkawy, MD

Role: CONTACT

00201148207870

Facility Contacts

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Mohammed S Elsharkawy, MD

Role: primary

00201148207870

Other Identifiers

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36264PR1334/8/25

Identifier Type: -

Identifier Source: org_study_id

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