Conjoined twins, right atrial isomerism, and sequential segmental analysis

Three cases of twins conjoined across the chest were examined. In one set, one twin showed right atrial isomerism and the other showed the usual atrial arrangement. The other two sets showed the usual atrial arrangement in both twins. The associated cardiac anomalies were diverse, ranging from atrio...

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Bibliographic Details
Published in:British Heart Journal 1987-11, Vol.58 (5), p.518-524
Main Authors: Rossi, M B, Burn, J, Ho, S Y, Thiene, G, Devine, W A, Anderson, R H
Format: Article
Language:English
Subjects:
Biological and medical sciences
Cardiology. Vascular system
Congenital heart diseases. Malformations of the aorta, pulmonary vessels and vena cava
Female
Heart
Heart Atria - abnormalities
Heart Defects, Congenital - classification
Heart Defects, Congenital - diagnosis
Humans
Medical sciences
Pneumology
Respiratory system : syndromes and miscellaneous diseases
Twins, Conjoined - classification
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Summary:Three cases of twins conjoined across the chest were examined. In one set, one twin showed right atrial isomerism and the other showed the usual atrial arrangement. The other two sets showed the usual atrial arrangement in both twins. The associated cardiac anomalies were diverse, ranging from atrioventricular septal defects to absent atrioventricular connections. Sequential segmental analysis was used successfully in each case to classify the complex cardiac anomalies. The first step was the recognition of the atrial arrangement. This was easily achieved despite the complexity of the intracardiac morphology.
ISSN:0007-0769
1355-6037
1468-201X
2053-5864
DOI:10.1136/hrt.58.5.518