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Evaluation of Difficult Airway With Ultrasound

Evaluation of Difficult Airway in Adenotonsillectomy Patients With Ultrasound

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07057661
Enrollment
150
Registered
2025-07-10
Start date
2025-08-30
Completion date
2025-11-30
Last updated
2025-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adenotonsillectomy Surgery

Keywords

airway management, pediatric patients, ultrasonography

Brief summary

An unexpected difficult airway can lead to severe hypoxia and even death. Accurate airway assessment can reduce the incidence of difficult endotracheal intubation and related complications. Studies have shown that some ultrasonic indicators can predict difficult airways in adults to some extent. Studies have begun to investigate whether ultrasonic parameters can be used to predict difficult airways in children.Ultrasonic measurements of certain airway parameters have predictive value for difficult airways; therefore, airway ultrasonography is recommended as an aid in difficult airway prediction. We think that in pediatric patients with adenotonsillectomy, we will encounter more difficult airway because there may be anatomical differentiation due to adenoid and tonsillar hypertrophy. We aimed to evaluate the frequency of difficult airway with USG measurements in pediatric patients undergoing adenotonsillectomy. Group 1:Pediatric patients who underwent adenotonsillectomy Group 2: Pediatric patients who underwent any surgical operation We will evaluate two patient groups.

Detailed description

Ultrasonography (USG) is widely used in airway management, such as prediction of difficult airways, localization of cricothyroid membranes, selection of tracheal tubes, and evaluation of patients with a full stomach. Among these, ultrasonic measurements of the dimensions of certain airway parameters have predictive value for difficult airways; therefore, airway ultrasonography is recommended as an aid in difficult airway prediction. Many studies have shown that some ultrasonic parameters such as hyomental distance in the extension position and distance from the skin to the epiglottis can predict difficult airways in adults. However, it is unclear whether these parameters can be used to predict difficult airways in children. In recent studies, various protocols have started to be established . We think that we will encounter more difficult airways in pediatric patients with adenotonsillectomy because there may be anatomical differentiation due to adenoid and tonsillar hypertrophy. Therefore, we will evaluate the relationship between skin-epiglottic distance, hyomental distance and tongue base thickness measurements, which are used in most studies, and the mallampati score on physical examination and the Cormack Lehane score during laryngoscopy. The aim of this study was to compare the frequency of difficult airway between pediatric patients who underwent adenotonsillectomy (Group 1) and pediatric patients who underwent any surgical operation (Group 2) using USG measurements. Group 1:Pediatric patients who underwent adenotonsillectomy Group 2: Pediatric patients who underwent any surgical operation

Interventions

None listed

Sponsors

Izmir City Hospital
Lead SponsorOTHER_GOV

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
3 Years to 8 Years
Healthy volunteers
No

Inclusion criteria

1. ASA 1-2 patients 2. Pediatric patients aged 3-8 3. Those planned for elective surgery

Exclusion criteria

1. Those with a history of congenital anomalies (head, face, body) 2. ASA 3-4-5 patients 3. Those who will undergo emergency surgery 4. Those who will be subjected to an airway or anesthesia technique other than orotracheal intubation 5. Newborn group patients 6. Patients younger than 3 years old and older than 8 years old

Design outcomes

Primary

MeasureTime frameDescription
DSE: Distance from skin to epiglottisPreoperative , before the administration of anesthesiathe vertical distances from the submental skin to the midpoint of the epiglottis
HMDE: Hyomental distance in the extended positionPreoperative , before the administration of anesthesiathe distance from the lower border of the mentum of the mandible to the upper border of the hyoid bone
Tongue base thicknessPreoperative , before the administration of anesthesia

Secondary

MeasureTime frameDescription
Cormark Lehane scoreDuring laryngoscopyGrade 1: being a full view of the glottis Grade 2 : being a partial view Grade 3: being only a view of the epiglottis Grade 4: being an absent view of the glottis and epiglottis

Countries

Turkey (Türkiye)

Contacts

Primary ContactTuba Kuvvet Yoldas, MD
tubayoldas2297@gmail.com+905053428504

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026