Is Effective Preoxygenation in Elderly Patients Related to Position?

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

COMPLETED

Clinical Phase

NA

Total Enrollment

156 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-01

Study Completion Date

2023-07-19

Brief Summary

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The purpose of this study is to investigate the effect of the head-up position of 20 and 30 degrees on the ETO2 reaching time of 85% and the desaturation time of 92% after intubation in elderly patients compared to the supine position.

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Detailed Description

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Patients will be randomized into 3 groups. The patients will lay in the supine position, in the control group and 20 and 30 degrees head up position in other two groups. Each patient will be preoxygenated with well fitting anaesthesia face mask with FiO2 of 100% at least 6L of flow until the ETO2 reaches concentration of 85%. The angle (20 or 30 degrees) formed by the patients' bodies (hips and feet parallel to the ground, lifting the back from the ground plane) with the ground will be measured with a spirit level, angle meter, and confirmed with a smartphone application. The time to reach ETO2 85% by starting preoxygenation in patients will be measured and recorded with a stopwatch. When the target is reached, anesthesia induction will be performed and the patients will be intubated. After the start of the intubation attempt, the stopwatch will be started again, after intubation, the patient will be ventilated with a balloon once and the location of the tube will be confirmed, the circuit will be separated and SpO2 will be expected to go down to the level of 92 % and recorded during this time.

Conditions

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Anesthesia Intubation Complication

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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control

patients will be preoxygenated in supine position

Group Type OTHER

Head up positioning during preoxygenation

Intervention Type PROCEDURE

patients will be preoxygenated in head up position

20 degree

patients will be preoxygenated in 20 degrees head up position

Group Type EXPERIMENTAL

Head up positioning during preoxygenation

Intervention Type PROCEDURE

patients will be preoxygenated in head up position

30 degree

patients will be preoxygenated in 30 degrees head up position

Group Type EXPERIMENTAL

Head up positioning during preoxygenation

Intervention Type PROCEDURE

patients will be preoxygenated in head up position

Interventions

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Head up positioning during preoxygenation

patients will be preoxygenated in head up position

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Age above 65 years
* ASA 1-2

Exclusion Criteria

* heart failure
* uncooperative
* patients refusing well fitting face mask before reaching EtO2 85%
* chronic lung disease
* anemia (hb\<8gr/dl)
* BMI\>40
* neurological sequela

Minimum Eligible Age

65 Years

Maximum Eligible Age

95 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No