Tricuspid atresia

Exploration of the pulmonary circulation. Festschrift to Professor Donald Heath

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Spinnaker formation of sinus venosus valve. Case report of a fatal anomaly in a ten-year-old boy

A persistent right valve of the sinus venosus fatally complicated a case of tricuspid atresia in a 10-year-old boy. The center of this large membrane stretched to form a sac resembling a spinnaker. Depending on the relative amounts and directions of blood flowing against it from the coronary sinus below and the venae cavae above, the sail might fill or empty quickly. This gave means of potential obstruction: either of coronary venous flow which, without a tricuspid valvular orifice, could be trapped beneath the membrane; or of all right atrial flow if the sac fell across the sole atrial outlet, the septal defect. Such episodic block caused syncope six times in the last 23 months of life and death in acute right heart failure.

Haemodynamic and cine-angiocardiographic findings after one-stage repair of Fallot's tetralogy

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Cor triloculare biatriatum

Cor triloculare biatriatum is a rare form of congenital heart disease that needs to be considered in the differential diagnosis of the important group of patients with cyanotic congenital heart disease with pulmonary hypertension. The clinical and pathologic features of an example of this disease are reported and discussed in a review of previously reported cases. The small pulmonary blood vessels showed some features of hypertensive pulmonary vascular disease and evidence of an increased bronchial arterial collateral circulation to the lung. An interpretation of these histologic changes relating them to the abnormal pulmonary physiology in cor triloculare biatriatum is suggested.