[The electrocardiogram in primary pulmonary hypertension].

Primary pulmonary hypertension is a rare disease characterized by a rise of arterial pressure in the pulmonary artery without a known cause. The authors define, based on a case-history, the etiopathogenesis of the disease, its diagnosis and approach to treatment. They analyze the contribution of ECG examination for detection of right ventricular hypertrophy and for monitoring the therapeutic success with the finding above all of repolarization changes in the right precordium. The patient had a transplantation of the lungs.