[The association between primitive pulmonary hypertension and essential systemic arterial hypertension. Remarks on...

The clinical, laboratory, haemodynamic, cardioangiographic and anatomo-pathological features are described in two patients in whom the association of "Primary Pulmonary Hypertension and Arterial Essential Systemic Hypertension" was noticed. On the basis of a hyperactive neurohormonal mechanism, a hypothetical, ethiological relationship between the pure hypertensive state of both the circulations is discussed. The occurrence of hypertensive systemic episodes and Raynard's phenomena lend weight to the hypothesis that neurohormonal mechanisms might participate in the pathophysiology of this syndrome.