Intubation With Different Angles of the Intubation Tube Using C-macr d Blade Videolaringoscope;

Study Overview
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Brief Summary
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In this study we compared the intubation success, time needed for intubation, subglottic damage, postoperaitve sore throat, hoarseness and hemodynamic response to orotracheal intubation using three different intubation stylets with C-MAC R videolaryngoscope D- blade.

Detailed Description
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In this study we compared the intubation success, time needed for intubation, subglottic damage, postoperaitve sore throat, hoarseness and hemodynamic response to orotracheal intubation using three different intubation stylets with C-MAC R videolaryngoscope D- blade. After the approval of the Ethics Committee, patients were randomized into three groups with closed envelope technique. In Group A endotracheal tube (ETT) is shaped into an angel of 90 degrees, in Group B 80 degrees and in Group C 60 degrees with three different stylets. Laryngoscopy was performed using D-Blade in all 3 groups. Heart rate and blood pressure before and after intubation, time from the entrance of the laryngoscope into the mouth to the passage of the vocal cords, time from the appearance of the cords to intubation, Cormack-Lehane (C-L) classification were recorded. Subglottic damage was examined with fiberoptic bronchoscope. Patients were evaluated regarding postoperative sore throat and hoarsness at 30 minutes, 4, 12, 24 hours postoperatively.

Official Title
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Intubation With Different Angles of the Intubation Tube Using C-macr d Blade Videolaringoscope; Evaluation of the Effect on Intubation Success, Subglotic Damage, and Postoperative Throat Pain: A Prospective Randomized Study

Conditions
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Hoarseness, Sore-throat, Intubation; Difficult or Failed

Intervention / Treatment
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* Other: Intubation using C-MAC D blade videolariyngoscope


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: ASA score I-II Elective operations Supine pozition 18-65 years No history of surgery in the last 6 months No history of airway related surgery No anticipated difficult airway Exclusion Criteria: Abdomen, thorax, head-neck surgeries Smoker Chronic alcohol abuse Occupational inhaler agent exposure Patients with malignancies Patients with a history of radiotheraphy to head-neck region Patients with congenital anomalies at head-neck region Patients with diagnosed abnormalites of head -neck movements Non-cooperatied patients Non-oriented patients

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Supportive Care
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: In this study we compared the intubation success, time needed for intubation, subglottic damage, postoperaitve sore throat, hoarseness and hemodynamic response to orotracheal intubation using three different angled intubation stylets with C-MAC R videolaryngoscope D- blade.
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Group A : 90 degree<br>In this group patients were intubated using a 90 degree angled stylet with C-MAC D- Blade videolaryngoscope | Other: Intubation using C-MAC D blade videolariyngoscope<br>* all patients were intubated using the C-MAC D-Blade videolaryngoscope but for each group the intubation tubes were angled in different degrees. First group was intubated using the stylet of 60 degrees, second group was intubated using the stylet of 80 degrees and the third group was intubated using the stylet of 90 degrees.<br>|
| Active Comparator: Group B : 80 degree<br>In this group patients were intubated using a 80 degree angled stylet with C-MAC D- Blade videolaryngoscope | Other: Intubation using C-MAC D blade videolariyngoscope<br>* all patients were intubated using the C-MAC D-Blade videolaryngoscope but for each group the intubation tubes were angled in different degrees. First group was intubated using the stylet of 60 degrees, second group was intubated using the stylet of 80 degrees and the third group was intubated using the stylet of 90 degrees.<br>|
| Active Comparator: Group C: 60 degree<br>In this group patients were intubated using a 60 degree angled stylet with C-MAC D- Blade videolaryngoscope | Other: Intubation using C-MAC D blade videolariyngoscope<br>* all patients were intubated using the C-MAC D-Blade videolaryngoscope but for each group the intubation tubes were angled in different degrees. First group was intubated using the stylet of 60 degrees, second group was intubated using the stylet of 80 degrees and the third group was intubated using the stylet of 90 degrees.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| sore throat | For evaluation of sore throat, the patients were asked whether they had any throat pain. The severity of sore throat was graded as follows: 1: no sore throat, 2: minimal, 3: moderate, 4: severe | 30 minutes, 4 hour, 12 hour, 24 hour | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Intubation success rate | For evaluation of the success rate modified intubation difficulty score was used. | 2 minutes | 
| Subglottic damage | For evaluation of subglottic damage 4-point scaled subglottic damage score was used. grade 0, normal; grade 1, mucosal hyperaemia and oedema and/or slight submucosal haematoma; grade 2, moderately submucosal haematoma; grade 3, mucosal laceration and/or mucosal bleeding | 2 hours | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Intubation, Videolaryngoscope,, C-MAC R Videolaryngoscope,, D- Blade, Subglottic damage, Postoperative sore throat,, Hoarsness