UNEVEN DISTRIBUTION OF PULMONARY BLOOD FLOW BETWEEN LEFT AND RIGHT LUNGS IN ISOLATED VALVULAR PULMONARY STENOSIS

Publisher Website
Google Scholar
Abstract
Seven patients without cardiac abnormality and 8 patients with isolated pulmonary stenosis were studied by chest roentgenographic analysis, cardiac catheterization with angiocardiography, and radionuclide (I131 MAA) lung imaging. All 5 patients with valvular stenosis showed an uneven distribution of pulmonary blood flow between the left and right lungs, in favor of the left. This was a reversal of the normal pattern. Two patients with pure pulmonary infundibular stenosis and 1 patient with valvular pulmonary stenosis with secondary infundibular hypertrophy showed either normal pulmonary vasculature or shift of flow from the right to left which could be appreciated only by the quantitative data in radionuclide lung studies. Roentgenographic analysis plus lung scanning appears to be very promising in the differentiation of valvular pulmonary stenosis from other types of pulmonary [See figure in the pdf file] stenosis and the secundum type of atrial septal defect. It should also be valuable in ascertaining the therapeutic results of surgery in valvular pulmonary stenosis.

This publication has 0 references indexed in Scilit: