Does earlier lobectomy result in better long-term pulmonary function in children with congenital lung anomalies? A prospective study.

BACKGROUND: Management of asymptomatic congenital pulmonary airway malformations remains controversial when addressing the optimal timing of surgical resection. Neonatal resection is advocated by some based on the theory that earlier lobectomy results in greater compensatory lung growth. We examined whether age at lobectomy is correlated with better pulmonary outcomes as reflected by pulmonary function and exercise testing.
METHODS: Patients who had lobectomy for congenital pulmonary airway malformation between 1985 and 2002 were identified and underwent detailed clinical history, physical examination, pulmonary function testing (total lung capacity, forced vital capacity, forced expiratory volume in 1 second), and exercise testing (power, maximal oxygen uptake [Vo(2)max]).
RESULTS: Of 87 patients identified, 47 met the inclusion criteria, and 28 were tested prospectively. Age at the time of lobectomy ranged from 3 days to 56 months. There was no correlation between age at lobectomy and pulmonary function (total lung capacity, P = .408; forced vital capacity, P = .319; forced expiratory volume in 1 second, P = .174) or maximal work capacity (power, P = .280). There was a trend toward lower Vo(2)max in patients who had undergone lobectomy at an older age (Vo(2)max, P = .055).
CONCLUSION: Most children undergoing lobectomy have normal long-term pulmonary function. We found no correlation between age at lobectomy and future pulmonary function. Cardiopulmonary exercise testing should be considered in evaluating functional outcome in these patients.