Interaction Between Head/Neck Position and C-MAC Blade Geometry on Videolaryngoscopic Intubation in Morbidly Obese Patients: A Randomized Controlled Trial

N/AActive Not RecruitingNCT07636746

Ain Shams University140 enrolled

Overview

This study aims to explore the effect of head/neck position (sniffing vs ramped) and C-MAC blade geometry (MAC vs D-blade) on intubation in morbidly obese patients. The patients will be randomized into 4 groups: 1. S MAC: Sniffing + MAC blade. 2. R MAC: Ramped + MAC blade. 3. S D-blade: Sniffing + D-blade. 4. R D-blade: Ramped + D-blade.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

QUADRUPLE

Enrollment

140

Conditions

Morbid Obesity

Interventions

Sniffing position and using MAC blade.DEVICE

Machintosch blade will be used in intubating patient in sniffing position

Ramped position and MAC BladeDEVICE

MAC blade will be used in intubating patient in ramped postion

videolaryngoscopyDEVICE

D-blade will be used in intubating patient in sniffing position

Eligibility

Sex: ALLMin age: 18 YearsMax age: 70 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Age 18-70 years. * BMI ≥ 40 kg/m². * ASA physical status III - IV. * Elective surgery requiring intubation. * Informed consent obtained. Exclusion Criteria: * Anticipated difficult airway unrelated to obesity. * Cervical spine pathology. * Pregnancy. * Emergency surgery. * High aspiration risk. * OSA requiring CPAP \>15 cmH₂O. * Need for awake intubation.

Locations (1)

Ain Shams University

Cairo, Egypt, Egypt

Outcomes

Primary Outcomes

Intubation time (seconds), from blade insertion to confirmed placement via capnography.

Time frame: seconds

Data from ClinicalTrials.gov

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