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Can Head Position Improve Surgical Field During Ear Surgery?

NCT04095754 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 225

Last updated 2020-10-19

No results posted yet for this study

Summary

Middle ear surgeries utilizes microscope in a narrow field. They are better performed under controlled hypotension, to minimize bleeding and improve surgical field visualization and hence improve results.Head-up or anti-trendelenburg position influences intraoperative bleeding by generating regional ischaemia in sites elevated above the level of the heart. Also by augmenting the effect of vasodilators through pooling of blood in dilated veins.

Conditions

  • Intra-operative Bleeding

Interventions

PROCEDURE

Head-Up Position

Anti-Trendelenburg Position

DRUG

Dexmedetomidine

Controlled hypotension: All patients will receive dexmedetomidine 1mcg. Kg-1 loading dose over 10 min just before induction, followed by continuous infusion of 0.4 mcg.kg-1hr-1

DRUG

Induction and maintenance of anaesthesia

Induction of anaesthesia: fentanyl 1 μg.Kg-1, propofol 1.5-2 mg.kg -1 titrated to loss of verbal response, atracurium 0.5 mg. Kg-1 to facilitate endotracheal intubation. Maintenance:Anaesthesia will be maintained using isoflurane 1 % in oxygen and air mixture 1:1 and atracurium 0.1 mg. Kg-1 every 20 mim.

Sponsors & Collaborators

  • Ain Shams University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-04-12
Primary Completion
2020-10-14
Completion
2020-10-14

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04095754 on ClinicalTrials.gov