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Updated: Jul 29, 2026

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
Published on: November 4, 2015
[Pulmonary atresia with intact ventricular septum. Natural development of the right ventricle]
E Atik1, A Cury, A M Albuquerque
1Instituto do Coração do Hospital das Clínicas-FMUSP.
Abstract:
A case of pulmonary atresia with intact ventricular septum and a hypoplastic right ventricle, with three wall formed portions, that became naturally well developed until 2 years of age, is related. A Blalock-Taussig shunt had been performed early in life. Z value of tricuspid valve of 0.3 and left ventricular in ECG has been changed to a well developed tricuspid annulus of 22 mm diameter and to a right ventricle overload after 2 years of follow-up, being possible surgical correction at that time. This observation, until today unknown, the natural increase of a congenitally hypoplastic cardiac chamber, favors the possibility to postpone the corrective operation to a better stage in this anomaly, when the risk becomes lower.
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