Publication: Long-term respiratory outcomes of post-op congenital lung malformations
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Date
2021
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WILEY
Abstract
Background Congenital lung malformations (CLM) are rare disorders and surgical intervention is the definitive treatment. Our aim is to evaluate the long-term lung function of patients with CLM after surgery compared to healthy children. Methods Sixteen children with CLM (M/F: 9/7) and 30 age-matched, healthy controls (M/F: 13/17) were included in the study. Demographic data were recorded and both groups were compared by spirometry and the nitrogen-based Lung Clearance Index (LCI). Results Mean +/- SD age of the patients was 12.0 +/- 5.4 years. The mean forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), FEV1/FVC, and forced expiratory flow between 25% and 75% of force expiration (FEF25-75) predicted was, 86.68 +/- 16.65, 88.00 +/- 14.58, 97.44 +/- 9.89, and 79.00 +/- 26.41, respectively in the patient group. Patients with CLM had significantly lower values in FEV1, FVC, FEF25-75 than healthy controls (P = 0.002, P 0.007, P 0.045). While the mean LCI2,5% value in patients' group was 8.33 +/- 1.52, it was 7.28 +/- 0.80 in healthy controls (P = 0.023). Strong inverse correlation between LCI and FEV1, FEV1/FVC was detected in the patient group (P = 0.023; r: -0.581, P 0.017; r: -0.606 respectively). Conclusion This study revealed that, in long-term follow-up, patients who had surgery because of CLM have impairment in the pulmonary function compared to healthy children and LCI may be more accurate in detecting airway diseases early than spirometry.
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Keywords
congenital lung malformations, lung clearance index, pulmonary function test, spirometry, INERT-GAS WASHOUT, MULTIPLE-BREATH WASHOUT, PULMONARY-FUNCTION, CLEARANCE INDEX, CHILDREN, LOBECTOMY, DISEASE, STATEMENT, CHILDHOOD, RESECTION