Comparison of EzVision® Videolaryngoscope and Gum Elastic Bougie-Assisted Machintosh Laryngoscopy

Nevsehir Public Hospital70 enrolled

Overview

The aim of this study is to compare the EzVision® videoryngoscope with conventional laryngoscopy using a Macintosh blade in patients with suspected difficult intubation. This study primarily aims to test the hypothesis that laryngoscopy image is better with EzVision® videoryngoscopy compared to direct laryngoscopy. The secondary hypothesis is also to test the view that, compared to direct laryngoscopy, EzVision® videolingoscopy will improve intubation success, reduce intubation attempts, shorten intubation time, facilitate intubation, and cause less additional complications such as bleeding or sore throat.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

SUPPORTIVE_CARE

Masking

SINGLE

Enrollment

Conditions

Intubation; Difficult or Failed Airway Complication of Anesthesia

Interventions

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. 18 to 65 years old; 2. American Association of Anesthesiologists (ASA) physical condition I-II-III; 3. Elective surgery requiring oral endotracheal intubation for general anesthesia; 4. Compliance with one of the difficult intubation estimation criteria (if more than one) 5. Expected extubation in the operating room Exclusion Criteria: 1. Refusal to participate in research; 2. Age \<18 and \>65 3. ASA IV and above 4. Emergency cases 5. Body Mass Index (BMI) \> 40 kg/m2. 6. Pregnancy 7. Cardiac surgery 8. Unexpectedly difficult intubation

Outcomes

Primary Outcomes

Glottis viewing

Glottical viewing will be measured by Modified Cormack Lehane grading. In this scoring system, number 1 indicates the best appearance, while number 4 indicates the worst situation where the glottis is not visible. This measurement have no specific value, but it evaluates glottis opening as visually. 1\. Fill view of the glottis 2a. Partial view of the glottis 2b. Arytenoids or posterior part of the vocal cords only visible 3. Only epiglottis visible 4. Neither glottis nor epiglottis visible