Clinical trial NCT06709118: The Effect of Different Fiberoptic Outer Diameters on Fiberoptic Intubation
Official title: The Effect of Different Fiberoptic Outer Diameters on Fiberoptic Intubation
Study type: OBSERVATIONAL
Overall status: NOT_YET_RECRUITING
Conditions: Intubation Times
Keywords: Intubation
Ffiberoptic
Perioperative
Sore throat
Success rate
Lead sponsor: The Fourth Affiliated Hospital of Zhejiang University School of Medicine
Sponsor class: OTHER
First posted: 2024-11-29
Enrollment: 75
Sex: ALL
Minimum age (years): 18
Maximum age (years): 60
Standard ages: ADULT
Accepts healthy volunteers: yes
Observational model: CASE_CONTROL
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Patients in need of oral tube intubation and general anesthesia in our hospital for elective surgery

Brief summary: Fiberoptic intubation is an important method for anesthesiologists to deal with difficult airways, but its operation is difficult and requires repeated practice. Fiberoptic intubation is performed in two steps. First, the anesthesiologist holds the bronchoscope and exposes the base of the tongue, the epiglottis, and the glottis successively according to the front camera of the bronchoscope. Through the glottis, the main trachea is exposed to the carina. This process is visual and the anesthesiologist can see the main tissue structure directly. Then, the endotracheal catheter enters the endotracheal along the bronchoscope, and the process of endotracheal catheter entry is not visual.

In clinical work, it was found that the tracheal catheter was easily blocked when it passed through the glottis, and it was necessary to adjust the position of the tracheal catheter for several times before the tracheal catheter could be sent into the tracheal tube, which was easy to cause throat injury in the process. At present, relevant studies are mainly focused on the first step of bronchoscopic intubation, how to quickly expose the glottis and complete the bronchoscopic guidance process. However, there is no clear mention of the situation of catatoning in the process of endotracheal catheter and how to solve the problem of catatoning.

Detailed description: According to the inclusion and exclusion criteria，collecting the data of participants who undergone fiberoptic intubation. The observer analysis the safety and efficiency of fiberoptic intubation.

Eligibility criteria: Inclusion Criteria:

1.American Society of Anesthesiologists 1\~2

2.18-60 year

3.Adult patients requiring general anesthesia for orotracheal intubation

Exclusion Criteria:

1. Limited mouth opening
2. limited movement of temporomandibular joint
3. abnormal glottic anatomy
4. polyps of vocal cords

Primary outcomes:
measure: Fiberoptic intubation attempts
timeFrame: during the procedure
measure: First intubation success rate
timeFrame: during the procedure
measure: Fiberoptic intubation time
timeFrame: during the procedure
measure: Time of passage of tracheal intubation through glottis
timeFrame: during the procedure
Secondary outcomes:
measure: Hoarseness after surgery
timeFrame: 24 hours after surgery
measure: Sore throat
timeFrame: 24 hours after surgery
Other outcomes:
Locations:
Study officials:
References:
citation: Piegeler T, Clausen NG, Weiss M. Effectiveness of tip rotation in fibreoptic bronchoscopy under different experimental conditions: an in vitro crossover study. Br J Anaesth. 2017 Dec 1;119(6):1206-1212. doi: 10.1093/bja/aex322.
citation: Karmali S, Rose P. Tracheal tube size in adults undergoing elective surgery - a narrative review. Anaesthesia. 2020 Nov;75(11):1529-1539. doi: 10.1111/anae.15041. Epub 2020 May 16.
citation: Teulieres M, Berard E, Marot V, Reina N, Ferre F, Minville V, Cavaignac E. A quadruple peripheral nerve block outside the OR for anterior cruciate ligament reconstruction reduces the OR occupancy time. Knee Surg Sports Traumatol Arthrosc. 2023 Jul;31(7):2917-2926. doi: 10.1007/s00167-022-07246-2. Epub 2022 Dec 5.