A questionnaire that can measure disease severity from the patients perspective in patients with pectus excavatum already exists in English (Pectus Excavatum Evaluation Questionnaire; PEEQ). This questionnaire was recently translated into Dutch. Before this Dutch version can be used, it needs to be tested by a number of patients.
Data will be collected at three moments:
1. Preoperatively: The PEEQ will be completed on paper during the outpatient clinic visit.
2. Postoperatively: The PEEQ will be completed electronically 2 months post-surgery.
3. Test-retest reliability: The PEEQ will be administered electronically at least two weeks after a previous assessment.
Protocol Amendment History
1 amendment
This ClinicalTrials.gov record has been amended once since 2025-04-01.
Status change: Not Yet Recruiting → Recruiting2026-03-23