Actively Recruiting
Perioperative Ultrasonographic Assessment of Diaphragmatic Function in Pediatric Obstructive Sleep Apnea
Led by Istanbul University · Updated on 2026-02-02
60
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are studying how the diaphragm functions around the time of surgery in children aged 1 to 12 years who are having elective surgery under general anesthesia. The study focuses on children with suspected obstructive sleep apnea syndrome (OSAS) undergoing adenotonsillectomy compared to children without OSAS undergoing other non-airway-related ear, nose, and throat surgeries. The goal is to understand differences in diaphragm movement and thickness before and after surgery and how these relate to breathing and recovery. Participants are divided into two groups based on a parent-completed Pediatric Sleep Questionnaire (PSQ). Children scoring 0.33 or higher on the PSQ and scheduled for adenotonsillectomy form the OSAS group, while those scoring below 0.33 and scheduled for other elective surgeries are controls. Ultrasound scans of the diaphragm will be done before and after surgery while the child breathes spontaneously in a lying down position. Measurements include diaphragm thickness at the end of breathing in and out, the thickening fraction, and diaphragm movement during quiet and deep breaths. During the study, children will receive standard anesthesia and surgical care. Researchers will assess diaphragm ultrasound images and compare the thickening fraction as the main outcome, along with other diaphragm movement and thickness measures. They will also evaluate respiratory and recovery parameters during and after surgery. The study aims to explore whether diaphragm ultrasound can be a useful noninvasive tool to monitor breathing function and recovery in children with suspected OSAS during surgery.
CONDITIONS
Brief Title
Diaphragm Ultrasound İn Children With OSAS
Who Can Participate
Eligibility Criteria
You may qualify if you...
- ASA physical status I-II
- Children aged 1 to 12 years
- Scheduled to undergo elective surgery under general anesthesia
- Written informed consent obtained from parents or legal guardians
- Availability of a completed pediatric sleep questionnaire (PSQ)
You will not qualify if you...
- Patients younger than 1 year or older than 12 years
- Presence of a neuromuscular disease
- Use of medications that may affect neuromuscular function
- Diaphragmatic paralysis
- ASA physical status III-IV
- Refusal to participate in the study or failure to provide informed consent
- Body mass index (BMI) > 35 kg/m�b2
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person) for completion of the Pediatric Sleep Questionnaire and eligibility confirmation
Duration - Day of surgery and first hour after surgery
Participants undergo elective surgery under general anesthesia with perioperative diaphragmatic ultrasonographic assessments performed before anesthesia induction and within the first hour after surgery during postoperative recovery.
1 visit on surgery day including preoperative and postoperative assessments
Trial Site Locations
Total: 1 location
1
Istanbul University, Department of Anesthesiology
Istanbul, Fatih, Turkey (Türkiye), 34093
Actively Recruiting
Research Team
D
Demet Altun, Professor
F
Furkan Kelebek, Resident
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
2
Similar Trials
Frequently Asked Questions
Have more questions? Get in touch with our team for quick support
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match.
Sign up to get personalized trial recommendations delivered to your inbox.
Already have an account? Log in here