Hyperinflation of the lungs in infants with large left-to-right shunts.

Publication/Presentation Date

5-1-1988

Abstract

Infants with significant left-to-right shunts due to ventricular septal defects and atrioventricular canal defects commonly present with respiratory symptoms, such as shortness of breath while feeding, tachypnea, and wheezing. Radiographs show hyperinflated lungs as well as cardiomegaly and increased vascularity. Enlarged vessels adjacent to small compressible airways as well as peribronchial interstitial edema may cause diffuse air trapping. In this study, using an automated planimetric device, we measured the total thoracic, cardiomediastinal, and lung volumes in a group of patients with large left-to-right shunts as well as in a group of normal controls and found that, as expected, all volumes were significantly increased in the abnormal group. We also tried to correlate these volumes (corrected for patient size) with the degree of left-to-right shunt and found that there was no significant correlation between the cardiac or lung volumes and shunt size as estimated by cardiac catheterization.

Volume

23

Issue

5

First Page

354

Last Page

358

ISSN

0020-9996

Disciplines

Medicine and Health Sciences | Pediatrics

PubMedID

3384615

Department(s)

Department of Pediatrics

Document Type

Article

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