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The purpose of the study is to find out the clinical effects that can be obtained during nasotracheal intubation when using velvet-soft PVC tube compared to conventional polyvinylchloride(=PVC) tube.
The hypothesis of this study is that the velvet-soft PVC tube can advanced from the nasal cavity to the oral cavity through the posterior wall of the pharynx more smoothly than conventional PVC tube, thus reducing blockade of tube advancement, nasal/pharyngeal mucosal bleeding, and intubation time. In addition, investigators would like to compare the technique of nasal intubation using by connecting rubber suction catheter to PVC tube tip.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| conventional PVC tube | Active Comparator | When performing nasotracheal intubation, clinicians use the conventional PVC tube. |
|
| PVC tube with rubber suction catheter | Experimental | When performing nasotracheal intubation, clinicians use the conventional PVC tube + rubber suction catheter. |
|
| velvet soft PVC tube | Experimental | When performing nasotracheal intubation, clinicians use the velvet soft PVC tube. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| nasotracheal tube (Ring-Adair-Elwin) | Device | different materials for nasotracheal intubation conventional PVC tube |
|
| Measure | Description | Time Frame |
|---|---|---|
| blockade of tube advancement from the nasal cavity to the oral cavity [ during intubation] | When entering a nasotracheal tube from the nasal cavity to the oral cavity before use of laryngoscope in nasotracheal intubation, clinicians sometimes encounter blockade of in tube advancement. The reason is that the direction of the nasotracheal tube and the posterior wall of the nasopharynx are anatomically perpendicular. When advancing the tube from the nasal cavity to the oral cavity, the researcher will evaluate the presence of blockade of tube advancement in the pharynx. (none / present) | During nasotracheal intubation (From the time of insertion of the tube through the nostril to completion of the intubation ) |
| Measure | Description | Time Frame |
|---|---|---|
| Intubation time | the total time of nasotracheal intubation: From the time of insertion of the tube or tube combined with the rubber suction to the completion of nasotracheal intubation | During nasotracheal intubation (From the time of insertion of the tube or tube combined with the rubber suction catheter to the completion of nasotracheal intubation) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Chul Ho Chnag | Gangnam Severance Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Gangnam Severance Hospital | Seoul | 06273 | South Korea |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 31421677 | Background | Kim H, Lee JM, Lee J, Hwang JY, Chang JE, No HJ, Won D, Row HS, Min SW. Effect of neck extension on the advancement of tracheal tubes from the nasal cavity to the oropharynx in nasotracheal intubation: a randomized controlled trial. BMC Anesthesiol. 2019 Aug 17;19(1):158. doi: 10.1186/s12871-019-0831-6. | |
| 38548948 | Derived |
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| ID | Term |
|---|---|
| D015494 | Salivary Gland Calculi |
| ID | Term |
|---|---|
| D020792 | Salivary Calculi |
| D012466 | Salivary Gland Diseases |
| D009059 | Mouth Diseases |
| D009057 | Stomatognathic Diseases |
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| nasotracheal tube (Ring-Adair-Elwin) | Device | different materials for nasotracheal intubation conventional PVC tube with rubber suction catheter |
|
|
| nasotracheal tube (portex) | Device | different materials for nasotracheal intubation velvet soft PVC tube. |
|
|
| Lee J, Lee JM, Shim YH, Cho JG, Lee J, Lim JY, Chang CH. A randomized comparison of three intubation techniques/tube materials for nasotracheal intubation. Can J Anaesth. 2024 Jul;71(7):978-986. doi: 10.1007/s12630-024-02743-z. Epub 2024 Mar 28. |
| D002137 |
| Calculi |
| D020763 | Pathological Conditions, Anatomical |
| D013568 | Pathological Conditions, Signs and Symptoms |