Investigation of Endotracheal Cuff Pressure Changes According to Different Positions in Neurosurgery Cases

Study Overview
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Brief Summary
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We aimed to measure the change in cuff pressure in different positions in neurosurgery cases and to investigate the effect of case length on cuff pressure.

Detailed Description
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It is an observational study, the cuffs of the endotracheal tubes of the patients who were intubated under general anesthesia between February 2023 and May 2023 will be inflated at 25 cm H2O pressure, and then the pressure line and the pilot balloon will be connected to the anesthesia monitor. The cuff pressure of the patient will be measured from the pilot balloon throughout the case and recorded at half-hour intervals. Postoperative sore throat will be evaluated on the VAS scale. Postoperative cough, hoarseness, and dysphagia symptoms will be evaluated.

Official Title
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Investigation of Endotracheal Cuff Pressure Changes According to Different Positions in Neurosurgery Cases

Conditions
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The Effect of Cuff Pressure on Postoperative Dysphagia

Intervention / Treatment
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* Other: supine position
* Other: prone position
* Other: semi-fowler position


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Neurosurgery patients between the ages of 18-70 ages American Society of Anesthesiologist score I-II-III-IV Exclusion Criteria: Patients with previous tracheostomy Patients with tracheal stenosis Patients considered as difficult intubation Patients who have had more than one intubation attempt Patients with an ASA score greater than 4 Patient who has difficulty understanding visual analog scale (VAS) scores Language / communication barrier Patients younger than 18 years old

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| supine<br>The patient group whose cuff pressure was measured in the supine position in neurosurgery | Other: supine position<br>* The patient group whose cuff pressure was measured in the supine position<br>|
| prone<br>The patient group whose cuff pressure was measured in the prone position in neurosurgery | Other: prone position<br>* The patient group whose cuff pressure was measured in the prone position<br>|
| semi-fowler<br>The patient group whose cuff pressure was measured in the semi-fowler position in neurosurgery | Other: semi-fowler position<br>* The patient group whose cuff pressure was measured in the semi-fowler position<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The effect of cuff pressure on postoperative sore throat | The primary outcome of the study was intubated under general anesthesia, endotracheal cuff of patients in supine, prone, semi-fowler position is to observe the change of pressures according to the positions. | 24 hours | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Comparison of cuff pressure changes with cuff time according to groups | Secondary outcome of the study, case length on endotracheal cuff pressure is to observe. | 8 hours | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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cuff pressure, postoperative dysphagia, different positions in neurosurgery