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The Intrapulmonary Arterial Pattern in Normal Infancy And in Transposition of the Great Arteries
Author(s) -
ROBERTSON BENGT
Publication year - 1968
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1968.tb05675.x
Subject(s) - great arteries , medicine , anastomosis , interventricular septum , transposition (logic) , bronchial artery , pulmonary artery , cardiology , fetus , artery , anatomy , surgery , heart disease , lung , pregnancy , linguistics , philosophy , ventricle , biology , genetics
Summary Microangiographic and histologic studies of the pulmonary and bronchial arterial systems were carried out on 52 normal human fetuses, infants and children and on a series of 17 infants with transposition of the great arteries, isolated or associated with an interventricular septum defect. Particular attention was paid to various types of aberrations from the basic arterial pattern: arterial bronchopulmonary anastomoses, pulmobronchial arteries and bronchopulmonary arteries. The arterial bronchopulmonary anastomoses are of essentially the same type in normal cases as in transposition of the great arteries. The normal number of anastomoses is greater in infancy and early childhood than in the late fetal and neonatal period. From the age of a few months, however, many of the anastomoses become narrowed or obliterated. Abnormal pattern of the pulmonary arterial system, including abnormal pulmobronchial arteries, is a prominent feature in isolated transposition, less so in transposition associated with interventricular septum defect. In isolated transposition there is a considerable increase in the bronchial‐artery supply of the pulmonary parenchyma proper via bronchopulmonary arteries. In transposition associated with interventricular septum defect, the bronchial‐artery supply of the pulmonary parenchyma has a normal extent or is only moderately increased.