PubMed · 455365
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A Krcílek, V Utratová, J Vágnerová. 1979-04-13. [Artifacts in ECG - external effects (author's transl)].. https://pubmed.ncbi.nlm.nih.gov/455365/
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Three neonates presented with the heart in the right hemithorax: a newborn girl with a chest deformity and secondary dextrocardia (Poland sequence), a prematurely born girl with uncomplicated Kartagener's syndrome, and a newborn boy with cyanosis and the heart in the right hemithorax, in whom a surgical correction was indicated. A diagnosis ofdextrocardia should include the differentiation between primary and secondary dextrocardia. Secondary dextrocardia, or dextroposition, is the result of chest deformities, diaphragmatic defects, severe lung disease, or the presence of a mass displacing the heart from its normal position, usually without any cardiac abnormalities. In primary dextrocardia, the position of the organs in the abdomen is important for the differential diagnosis and the prognosis. The incidence of congenital cardiac malformations in primary dextrocardia varies from 10%, in situs inversus totalis, up to 90% in solitary dextrocardia.
Situs inversus with dextrocardia is a congenital condition in which the heart is a mirror image of the anatomically normal heart on the right side. Patients with this condition are increasingly surviving into adulthood and may present with heart failure. Several of such patients may benefit from atriobiventricular pacing which may be technically challenging. This case report describes techniques and equipment used to successfully place a coronary sinus lead in a patient with this congenital condition.
Myxoma is the most frequently encountered primary tumour of the heart, comprising more than 50% of all benign cardiac tumours. The case presented here was diagnosed as having dextrocardia with situs inversus and concomitant left ventricular outflow tract myxoma which has been very rarely encountered, particularly consistent with the scarcity of reported cases.