Evaluation the Efficiency of Intravenous Dexmedetomidine Under Nasal Humidification Rapid Ventilation Device Without Intubation in Laryngoscope Microsurgery

Dexmedetomidine Clinical Trial

Official title:

Evaluation the Efficiency of Intravenous Dexmedetomidine Under Nasal Humidification Rapid Ventilation Device Without Intubation in Laryngoscope Microsurgery

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05581485
• Other study ID #: KSVGH22-CT8-38
• Status: Recruiting
• Phase: N/A
• Start date: November 29, 2022
• Est. completion date: December 31, 2023

Study information

• Verified date: February 2023
• Source: Kaohsiung Veterans General Hospital.
• Contact: Yuan Yi Chia, Director
• Phone: 88673422121
• Email: yychia[@]vghks.gov.tw
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Method This single-center randomized-controlled trial is conducted to compare the efficiency of LMS with intubated general anesthesia(ITGA) and LMS with nonintubated anesthesia. The study also performed a comparative evaluation of the safety and feasibility of LMS with nonintubated general anesthesia under two different ventilation strategies. The investigators plan to enroll patients aged between 20 and 80 years who required LMS.

This study has divided into three groups: the first group was LMS patients receiving general intubation general anesthesia(ITGA group). The second group consisted of LMS patients who received non-intubated general anesthesia and performed SLNB(SLNB group). The third group was LMS patients who received non-intubated general anesthesia and were given Dexmedetomidine(Dex group)

Description:

Background Laryngeal microsurgery(LMS) is among the most common operations in otolaryngology and typically requires general anesthesia administered through endotracheal tube intubation. Endotracheal tube intubation provides stable gas exchange, protects the airways by preventing secretions from falling into the lower respiratory tract, and enables the monitoring of parameters such as tidal volume and end-tidal carbon dioxide(CO2).

Nonintubated anesthesia applied in combination with transnasal humidified rapid-insufflation ventilatory exchange or high-flow nasal oxygen(HFNO) is another option for LMS. LMS with nonintubated anesthesia can avoid the complications caused by endotracheal tube intubation such as oral tissue trauma, tracheal trauma, and dental injury. Furthermore, LMS with nonintubated anesthesia can provide a clearer surgical field of vision that allows the vocal cords to be comprehensively inspected and treated.

Current practice in LMS with nonintubated anesthesia is to perform superior laryngeal nerve block(SLNB) to help avoid bucking during the procedure. However, performing SLNB is an invasion procedure can lead to some complication such as bleeding, nerve injury or vessel injury.

Therefore, the investigators investigated the administration of dexmedetomidine with intravenous general anesthesia, it is can help the patient maintain spontaneous breathing, and provide higher surgical safety during LMS with nonintubated anesthesia.

Method This single-center randomized-controlled trial is conducted to compare the efficiency of LMS with intubated general anesthesia(ITGA) and LMS with nonintubated anesthesia. The study also performed a comparative evaluation of the safety and feasibility of LMS with nonintubated general anesthesia under two different ventilation strategies. The investigators plan to enroll patients aged between 20 and 80 years who required LMS.

This study has divided into three groups: the first group was LMS patients receiving general intubation general anesthesia(ITGA group). The second group consisted of LMS patients who received non-intubated general anesthesia and performed SLNB(SLNB group). The third group was LMS patients who received non-intubated general anesthesia and were given Dexmedetomidine(Dex group) The exclusion criteria were as follows: presence of severe airway obstruction, severe airway disease, American Society of anesthesiologists(ASA) physical state > III, pregnancy, or body mass index(BMI)≥40kg/m2.

This project is expected to improve the success rate of microlaryngoscopy in non-intubated anesthetized patients, in addition to the excellent surgical field and complete vocal cord examination, the use of dexmedetomidine instead of SLNB can provide good safety for non-intubated LMS .

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 90
• Est. completion date: December 31, 2023
• Est. primary completion date: December 31, 2023
• Accepts healthy volunteers: No
• Gender: All
• Age group: 20 Years to 80 Years

Eligibility

Inclusion Criteria:

• Subjects are between 20-80 years old.

• Patients undergoing laryngoscope microsurgery.

• Anesthesiologists rated ASA as between I and III.

Exclusion Criteria:

• Having drug dependence and drinking habits.

• Abnormal heart, liver and kidney function.

• Allergic reactions to narcotic drugs.

• Emergency surgery.

• pregnancy.

• Refuse to participate.

• BMI = 40 kg/m2.

Related Conditions & MeSH terms

• Dexmedetomidine

Intervention

Procedure:
• Non-intubated Laryngomicrosurgery
Non-intubated LMS was performed with assistance of Optiflow(HFNO).

Locations

Country	Name	City	State
Taiwan	Kaohsiung Veterans General Hospital	Kaohsiung

Sponsors (1)

Lead Sponsor	Collaborator
Kaohsiung Veterans General Hospital.

Country where clinical trial is conducted

Taiwan, 

References & Publications (9)

Abdelmageed WM, Elquesny KM, Shabana RI, Abushama HM, Nassar AM. Analgesic properties of a dexmedetomidine infusion after uvulopalatopharyngoplasty in patients with obstructive sleep apnea. Saudi J Anaesth. 2011 Apr;5(2):150-6. doi: 10.4103/1658-354X.8278 — View Citation

Ahmed A, Saad D, Youness AR. Superior laryngeal nerve block as an adjuvant to General Anesthesia during endoscopic laryngeal surgeries. Egyptian Journal of Anaesthesia 2015;31:167-74.

Booth AWG, Vidhani K, Lee PK, Thomsett CM. SponTaneous Respiration using IntraVEnous anaesthesia and Hi-flow nasal oxygen (STRIVE Hi) maintains oxygenation and airway patency during management of the obstructed airway: an observational study. Br J Anaesth — View Citation

Gemechu BM, Gebremedhn EG, Melkie TB. Risk factors for postoperative throat pain after general anaesthesia with endotracheal intubation at the University of Gondar Teaching Hospital, Northwest Ethiopia, 2014. Pan Afr Med J. 2017 Jun 16;27:127. doi: 10.116 — View Citation

Gustafsson IM, Lodenius A, Tunelli J, Ullman J, Jonsson Fagerlund M. Apnoeic oxygenation in adults under general anaesthesia using Transnasal Humidified Rapid-Insufflation Ventilatory Exchange (THRIVE) - a physiological study. Br J Anaesth. 2017 Apr 1;118 — View Citation

Naaz S, Ozair E. Dexmedetomidine in current anaesthesia practice- a review. J Clin Diagn Res. 2014 Oct;8(10):GE01-4. doi: 10.7860/JCDR/2014/9624.4946. Epub 2014 Oct 20. — View Citation

Riker RR, Shehabi Y, Bokesch PM, Ceraso D, Wisemandle W, Koura F, Whitten P, Margolis BD, Byrne DW, Ely EW, Rocha MG; SEDCOM (Safety and Efficacy of Dexmedetomidine Compared With Midazolam) Study Group. Dexmedetomidine vs midazolam for sedation of critica — View Citation

W.Abd El Megid, W., & Nassar, A. M. (2009). The analgesic and sedative properties of dexmedetomidine infusion after uvulopalatopharyngoplasty. The Egyptian Journal of Hospital Medicine, 36(1), 421-433.

Yang SH, Wu CY, Tseng WH, Cherng WY, Hsiao TY, Cheng YJ, Chan KC. Nonintubated laryngomicrosurgery with Transnasal Humidified Rapid-Insufflation Ventilatory Exchange: A case series. J Formos Med Assoc. 2019 Jul;118(7):1138-1143. doi: 10.1016/j.jfma.2018.1 — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	PaCO2 after Laryngomicrosurgery	arterial blood gas(ABG) was measured immediately after the end of LMS	ABG was measured immediately after the end of LMS
Secondary	PaO2 after Laryngomicrosurgery	ABG was measured immediately after the end of LMS	ABG was measured immediately after the end of LMS
Secondary	Hemodynamics data during LMS	Hemodynamic data were measured every 5 minutes	during the LMS procedure