Effect of Nose Selection Using Rhnoscope on Epistaxis of Nasotracheal Intubation

Study Overview
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Brief Summary
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Rhinoscope is useful to exam intranasal structure. This information could be utilized to select more suitable nose for nasotracheal intubation. Nastoracheal intubation using more patent nose could be associated with decrease of the development of epistaxis which is most common complication in nasotracheal intubation.

Detailed Description
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Anterior rhinoscopy using rhinoscope is a simple way to view the intranasal structure, which allows you to observe the nasal mucosa, the inferior nasal concha, and in some cases, the nasal concha. You can see the nasal septum, polyps, and intranasal malformations. In addition, even when there are no structural abnormalities in the nasal cavity, the wider nasal cavity can be intuitively identified. This information is expected to assist in the selection of nostrils. It has not yet been studied whether anesthesiologists select nasal cavity for nasotracheal intubation using prosthesis can affect the occurrence of epistaxis. The purpose of this study is to determine whether the selection of a nostril for nasotracheal intubation by rhinoscope affects the incidence and severity of epistaxis.

Official Title
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The Effect of Suitable Nose Selection Using Rhinoscope on the Incidence and Severity of Epistaxis After Nasotracheal Intubation.

Conditions
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Nasotracheal Intubation

Intervention / Treatment
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* Diagnostic Test: rhinoscope


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: ASA I or II undergoing surgery under nasotracheal intubation Exclusion Criteria: expected difficult intubation based on history, physical examination, weight. bleeding tendency past history of nasal surgery symptom of difficulty of nasal respiration

Ages Eligible for Study
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Minimum Age: 19 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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Design Details

Primary Purpose: Diagnostic
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| No Intervention: control group<br>nose selection will be done by random table | |
| Experimental: rhinoscope group<br>nose selection will be done by rhinoscopy | Diagnostic Test: rhinoscope<br>* more suitable nose for nasotracheal intubation will be selected based on the view of rhinoscope.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| incidence of epistaxis | percentage of the development of epistaxis after nasotracheal intubation | immediate after intubation | 
| incidence of epistaxis | percentage of the development of epistaxis after nasotracheal intubation | 5 min after intubation | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| severity of epistaxis4. severe: interfere intubation by blood | score based on severity of epistaxis will be recorded. 1: no epistaxis, 2: mild; blood on tube 3. moderate: blood pooling on pharynx | immediate after intubation | 
| severity of epistaxis | score based on severity of epistaxis will be recorded. 1: no epistaxis, 2: mild; blood on tube 3. moderate: blood pooling on pharynx | 5 min after intubation | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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epistaxis, rhinoscope