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NCT03355547
Observation of Atelectasis Using Lung Ultrasonography in Children Undergoing General Anesthesia: the Cohort Study for Evaluation of the Relationship Between the Incidence and Severity of Upper Respiratory Tract Infection and the Magnitude of Anesthesia-induced Atelectasis
trial testing questionnaire about the severity of their symptoms of upper respiratory tract infection in Surgery in 261 participants. Completed in 1 February 2019.
1 February 2019
Quick facts
| Lead sponsor | Yonsei University |
|---|---|
| Status | Completed |
| Study type | OBSERVATIONAL |
| Enrollment | 261 |
| Start date | 28 September 2017 |
| Primary completion | 1 February 2019 |
| Estimated completion | 1 February 2019 |
| Sites | 1 location across South Korea |
Drugs / interventions tested
- questionnaire about the severity of their symptoms of upper respiratory tract infection
Conditions studied
- Surgery — all drugs for Surgery →
Sponsor
Yonsei University
Who can join
Adults 6 Months to 6, any sex, with Surgery. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
Pediatric patients between 6months and 6years old will be included. They are scheduled for elective general or urologic surgery at a single tertiary medical center. Before the operation, the researcher interviews the parents of the pediatric patients to check whether they have the upper respiratory tract infection and asks them to fill out a questionnaire about the severity of their symptoms. The researcher will get the symptom score of the upper respiratory tract infection in the questionnaire. The degree of anesthesia induced atelectasis is measured using lung ultrasound. Pulmonary ultrasound is performed after endotracheal intubation and at the end of the operation dividing the patient's thorax into 12 regions. The investigator grades the degree of atelectasis at each region form 0 to 3 points. After the end of the operation, check whether the respiratory adverse effects occurred during emergence and recovery at the post anesthesia care unit.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
-
Effect of upper respiratory infection on anaesthesia induced atelectasis in paediatric patients.
Lee HM, Byon HJ, Kim N, Gleich SJ, et al · · 2021 · cited 3× · PMID 33727626 · DOI 10.1038/s41598-021-85378-0
Verify or expand the search:
- PubMed search for NCT03355547
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT03355547 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Yonsei University
- Last refreshed: 6 May 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03355547.
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