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Lung Growth and Airway Function after Lobectomy in Infancy for Congenital Lobar Emphysema
John T. McBride, … , Adrian J. Williams, Samuel Schuster
John T. McBride, … , Adrian J. Williams, Samuel Schuster
Published November 1, 1980
Citation Information: J Clin Invest. 1980;66(5):962-970. https://doi.org/10.1172/JCI109965.
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Research Article

Lung Growth and Airway Function after Lobectomy in Infancy for Congenital Lobar Emphysema

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Abstract

To characterize the outcome of lobectomy in infancy and the low expiratory flows which persist after lobectomy for congenital lobar emphysema, 15 subjects with this history were studied at age 8-30 yr. Total lung capacity was normal in all, but higher values (P < 0.05) were observed in nine subjects with upper lobectomy than in five subjects with right middle lobectomy. Ratio of residual volume to total lung capacity was correlated (P < 0.05) with the amount of lung missing as estimated from normal relative weights of the respective lobes. Xe133 radiospirometry in eight subjects showed that the operated and unoperated sides had nearly equal volumes at total lung capacity, but that the operated side was larger than the unoperated side at residual volume. Perfusion was equally distributed between the two sides. Similar findings were detected radiographically in four other subjects. Forced expiratory volume in 1 s and maximal midexpiratory flow rate averaged 72 and 45% of predicted, respectively. Low values of specific airway conductance and normal density dependence of maximal flows in 12 subjects suggested that obstruction was not limited to peripheral airways. Pathologic observations at the time of surgery and morphometry of the resected lobes were not correlated with any test of pulmonary function.

Authors

John T. McBride, Mary Ellen B. Wohl, Denise J. Strieder, Andrew C. Jackson, John R. Morton, Robert G. Zwerdling, N. Thorne Griscom, Salvador Treves, Adrian J. Williams, Samuel Schuster

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