[Some cardiological problems in high mountains. Correlation with humans in flight]

A number of cardiology problems connected with altitude are discussed. Dietetic and pharmacological measures of service to heart patients in high mountain environments are suggested. It is concluded that the more serious patients (belonging to the IVth and Vth N.Y.H.A. functional classes), those suffering from myocardial infarction in the acute phase or from serious pulmonary hypertension, should not go higher than 1.000-1.500 metres above sea level. All other patients (with angina, hypertension, non-serious aortic and mitral arteriosclerotic cardiopathy) can go as far as 3.000 metres without inconvenience, providing the outlined dietetic and pharmacological measures are respected.