Dutch questionnaire to measure how teens feel about pectus excavatum
Official title: Field-test and Psychometric Validation of the Pectus Excavatum Evaluation Questionnaire in the Dutch Pectus Excavatum Population
Run by Zuyderland Medisch Centrum · NCT06918392 · Data updated 2026-11-12
This project will test the Dutch Pectus Excavatum Evaluation Questionnaire (PEEQ) in 12–18-year-olds having Nuss surgery to see if it reliably captures their symptoms and quality of life.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 12 Years to 18 Years |
| Sex | All |
| Enrollment | 66 (estimated) |
| Sponsor | Zuyderland Medisch Centrum Academic / other |
| Locations | 1 site (Heerlen) |
| Status | Recruiting |
| Started | December 15, 2021 |
| Main results expected | November 30, 2026 |
| Study ends | November 30, 2026 |
| Registry record updated | March 25, 2026 |
| Trial ID | NCT06918392 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are Dutch-speaking patients aged 12–18 years with pectus excavatum who are scheduled to undergo a Nuss procedure, with parents or guardians able to complete the parent section.
✕Probably not a fit
Patients who do not speak Dutch, are outside the 12–18 age range, or are not undergoing surgery may not benefit from or be eligible for this validation.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The Dutch version of the Pectus Excavatum Evaluation Questionnaire (PEEQ) will be field-tested and psychometrically validated in patients aged 12–18 scheduled for Nuss repair at Zuyderland Medical Center. Participants will complete the PEEQ on paper at the preoperative clinic visit, then electronically two months after surgery, and again at least two weeks after a prior assessment to measure test–retest reliability. Parents or legal guardians will be invited to complete the parent section of the questionnaire. Collected data will be analyzed for reliability, internal consistency, and responsiveness to change.
Why it matters
Potential benefit: If successful, clinicians and families will have a reliable Dutch tool to track how pectus excavatum affects symptoms and daily life from the patient's perspective.
How similar studies have gone: The original English PEEQ is established and used in practice, but translated versions require local validation, so this follows an established approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Eligible participants will be pectus excavatum patients aged 12 to 18 years old who are scheduled for a Nuss procedure. Parents or legal guardians will also be invited to complete the parent section of the PEEQ. Exclusion Criteria: * Exclusion criteria will be the inability of the patient or their parent/guardian to complete the corresponding section of the questionnaire due to language barriers.
Where it's running
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Zuyderland Medical Center
Heerlen, Netherlands Recruiting
Study contacts
- Study coordinator: Erik R de Loos, MD, PhD
- Email: e.deloos@zuyderland.nl
- Phone: +3188 459 9719
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.