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PreoperativeNCT06620991

Pre-operative Phentolamine Vs Intraoperative Esmolol Efficacy for Hypotensive Anesthesia in Functional Endoscopic Sinus Surgery

A study testing Phentolamine and Esmolol in people with Preoperative and Phentolamine, run by Ain Shams University at 1 site in Egypt.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The aim of this study is to evaluate the efficacy of intra-operative phentolamine vs intraoperative esmolol for hypotensive anesthesia in functional endoscopic sinus surgery. Read more about this study

Who is it for?
Ages 21 to 50 years
Conditions the study is for
Preoperative, Phentolamine, Intraoperative
What is being tested?
Phentolamine and Esmolol
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteEgypt
Study dates
10 Oct 2024to 1 Apr 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 to 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Age from 21 to 50 years.
  • Both sexes.
  • American Society of Anesthesiologists (ASA) physical status I-II.

Who cannot join

  • Patients with a medical condition that contraindicated hypotensive anesthesia, such as peripheral vascular disease, cerebrovascular stroke, carotid artery stenosis, previous myocardial infarction, ischemic heart disease, congestive heart failure, limb ischemia, uncontrolled hypertension and raised intracranial tension
  • Renal disease, liver dysfunction, pregnancy.
  • Patients on hypnotic or narcotic analgesic.
  • History of alcohol or drug abuse.
  • History of allergic reaction to any drug used in this study.
  • Bleeding diathesis.
Show all 9Show fewer
  • Previous nasal surgery.
  • Patients on Non-steroidal anti-inflammatory drugs (NSAIDs).
  • Patients with peripheral vascular disease.

Trial locations and contacts

1 site in 1 country.

Eslam A Elsamahi, Master contact

00201069503729

eslam.ahmed@med.asu.edu.eg

Egypt1 site
  • Ain Shams University

    Cairo, 11591

    Eslam A Elsamahi, Master, 00201069503729, eslam.ahmed@med.asu.edu.eg

    Hala G Salama, MD

Other trials in Egypt

About this study

The aim of this study is to evaluate the efficacy of intra-operative phentolamine vs intraoperative esmolol for hypotensive anesthesia in functional endoscopic sinus surgery.

Read the detailed description

Functional endoscopic sinus surgery (FESS) is becoming a widely performed operation. Its introduction associated with enhanced illumination and visualization has dramatically improved surgical dissection. However major complications have been reported for FESS under general anesthesia resulting from impaired visibility due to excessive bleeding.

Esmolol is a selective β1-adrenoreceptor antagonist involved in the control of heart rate (HR), contractility, and atrioventricular conduction. Currently, the use of β-blockade for hemodynamic stability and cardiac protection is well accepted among anesthesia providers, but recently, researchers have begun to explore the perioperative use of esmolol as an anesthetic adjunct. Esmolol was found to produce desired hypotension without tachycardia and improved surgical condition by reducing operative field bleeding.

Phentolamine is well known selective α1-blocker which is used to treat hypertensive emergency by producing profound vasodilatation. The reduced blood pressure will induce response in the arterial baroreceptors leading to release of adrenal catecholamine, eventually inducing reflex tachycardia. The reflex tachycardia is less profound in the selective α1-blockers such as phentolamine. Phentolamine is a short acting drug with a context sensitive half-life of 15 minutes which makes it ideal for rapid control of blood pressure.

Being tested
Phentolamine, Esmolol

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PhentolamineDrug

    A loading dose of 1-5 mg IV bolus over 1 minute is given followed by an IV infusion of a rate of 0.1-2 mg/min according to patient desired target mean arterial pressure (MAP) 50-60 mmHg over a volume of 10ml

  • EsmololDrug

    A loading dose of 1 mg/kg IV infused over 1 minute is given followed by an IV infusion of 0.15-0.3 mg/kg/min according to patient desired target mean arterial pressure (MAP) 50-60 mmHg over total volume of 10ml

Study groups in NCT06620991
Study groupRoleWhat they receive
PhentolamineExperimentalA loading dose of 1-5 mg IV bolus over 1 minute is given followed by an IV infusion of a rate of 0.1-2 mg/min according to patient desired target mean arterial pressure (MAP) 50-60 mmHg over a volume of 10ml.
Receives: Drug: Phentolamine
EsmololExperimentalA loading dose of 1 mg/kg IV infused over 1 minute is given followed by an IV infusion of 0.15-0.3 mg/kg/min according to patient desired target mean arterial pressure (MAP) 50-60 mmHg over total volume of 10ml.
Receives: Drug: Esmolol

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean arterial pressure

    Mean arterial pressure will be recorded at pre-induction, after the loading dose of the hypotensive agent, after injection of local vasoconstrictor and then every 15 minutes until the end of surgery.

    Measured: Until the end of surgery.

Secondary outcomes (2)
  1. Heart rate

    Heart rate will be recorded at pre-induction, after the loading dose of the hypotensive agent, after injection of local vasoconstrictor and then every 15 minutes until the end of surgery.

    Measured: Until the end of surgery

  2. Adverse events

    Adverse events will be recorded such as bradycardia, hypotension, nausea, vomiting, Pruritis, respiratory depression, or any other complication.

    Measured: 24 hours postoperative

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Oct 2024
  2. Study start10 Oct 2024 (estimated)
  3. Primary completion1 Apr 2025 (estimated)
  4. Study completion1 Apr 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06620991
Sponsor's protocol ID
FMASU MD147/2023
Status last verified
Sep 2024
First submitted
29 Sep 2024
Last updated
1 Oct 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: The data will be available upon a reasonable request from the corresponding author after the end of study for one year.

Questions about this trial

What is this clinical trial studying?

A study testing Phentolamine and Esmolol in people with Preoperative and Phentolamine, run by Ain Shams University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 1 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Eslam A Elsamahi, Master (00201069503729, eslam.ahmed@med.asu.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean arterial pressure (time frame: Until the end of surgery.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Oct 2024.

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