Laryngeal Mask Supreme and I-Gel in Edentulate Geriatric Patients

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

124 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-08-01

Study Completion Date

2024-12-01

Brief Summary

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The primary aim of this study is to evaluate ease and duration of placing Laryngeal Mask Supreme (LM) and applying I-gel in geriatric patients without teeth. The secondary aim is to compare their effects on ventilation parameters.

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Detailed Description

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Prospective, randomized and double-blind study, aged from 18 to 65 years undergoing elective laparoscopic gynecological surgery.

The patients are randomly assigned to 2 groups:

* Group 1: i-gel
* Group 2: laryngeal mask airway - Supreme

Procedure:

The investigation protocol contains the following sections:

1. Induction of anaesthesia: Preoxygenation will be provided at 6 Liter/min oxygen for three minutes by using a facial mask. After anesthesia induction with fentanyl 1-2 μg/kg and propofol 1-2 mg/kg (12), mask ventilation will be applied with 100% oxygen.
2. Bispectral index values will be held between 40-60.Bispectral index values will be within this interval by increasing or decreasing propofol infusion by 1 mg/kg after additional bolus dose of propofol (1 mg/kg).
3. Insertion of the airway device. The size of the airway device used is based on the manufacturers' recommendations. All devices are deflated a lubricated prior to use. Once inserted, the cuff is be inflated with a manometer up to 60 cm H20 Data recorded: size of airway device, time an number of attempts.
4. Maintenance of anesthesia will be achieved with sevoflurane 1,5-2,5% in a mixture of 50% O2/ 50% nitrogen protoxide. Sevoflurane concentrations will be adjusted to keep bispectral index values at 40-60.
5. Measurement of airway seal pressure (oropharyngeal leak pressure (OLP): at baseline, and two minutes after the airway tool is placed, every 15 minutes until the operation ends and before the airway tool is removed.
6. Ventilatory mechanics and parameters and hemodynamic parameters are measured at baseline, and two minutes after the airway tool is placed, every 15 minutes until the operation ends and before the airway tool is removed.
7. Perioperative complications: Cough, vomiting, laryngeal spasm, laryngeal Stridor
8. Removal of the airway device: Presence of blood - 3 level grading (1:no blood; 2: trace amounts of blood; 3: clear amounts of blood). Complications: sore throat (visual analogue scale :10-point scale), dysphonia (yes/no), dysphagia (yes/no).

Conditions

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Airway Morbidity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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Laryngeal mask Supreme

Device: Laryngeal mask Supreme

Group Type ACTIVE_COMPARATOR

Laryngeal mask Supreme evaluation

Intervention Type DEVICE

Device: Laryngeal mask Supreme evaluation

i-gel

Device: i-gel

Group Type EXPERIMENTAL

i-gel evaluation

Intervention Type DEVICE

Device: i-gel evaluation

Interventions

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Laryngeal mask Supreme evaluation

Device: Laryngeal mask Supreme evaluation

Intervention Type DEVICE

i-gel evaluation

Device: i-gel evaluation

Intervention Type DEVICE

Other Intervention Names

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Device: Laryngeal mask Supreme evaluation Device: i-gel evaluation

Eligibility Criteria

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Inclusion Criteria

* American Society of Anesthesiologists Classification I-III patients
* patients aged 65 years and older

Exclusion Criteria

* having teeth or fixed prosthesis
* having a pathology of the neck or the upper respiratory tract
* having a risk of regurgitation of gastric content/ aspiration (prior upper gastrointestinal system surgery, hiatus hernia, gastrointestinal reflux, history of peptic ulcer and full stomach)
* history or possibility of difficult airway (history of impossible intubation, mallampati score of 3-4, sternomental distance of shorter than 12 cm, thyromental distance of shorter than 6cm, head extension of lower than 90 degrees and mouth opening of lower than 1.5 cm)
* lower pulmonary compliance or higher airway resistance (morbid obesity -BMI\>35kg/m2- and pulmonary disease) Each patient will be examined preoperatively and American Society of Anesthesiologists Classification scores and mallampati scores will be recorded. Standard monitoring (ECG, pulse oximetry and noninvasive blood pressure measurement) and bispectral index monitoring will be performed in each patient before induction of anesthesia in the surgical room.

Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No