[Policy guidelines and practical considerations for the development of technology at the Instituto Nacional de Cardiología de México]. / Lineamientos doctrinarios y consideraciones prácticas para el desarrollo de tecnología que se realiza en el Instituto Nacional de Cardiología de México.

In order to face the current economical problems of the country, our Institute has intensified its efforts to replace the imports of medical goods by developing its own medical technology. This article summarizes what we have achieved in this field and describes the rules to be followed in the future. We describe the program on the designing and development of heart valve prosthesis together with an hydraulic-electrical system to test them. In the field of computed instruments, we have developed a system of "synchronos color pictures" to be applied in nuclear medicine. In the field of electrocardiography; an EKG paste, a computed program for automatic EKG interpretation and a "filter" of the 60 cycle interference. The Institute is engaged in the designing of a sophisticated EKG machine at low cost, and EKG tracing simulator for teaching purposes. These programs have been shared with others institutions of the country.

[Clinical electrocardiographic and coronary angiographic findings in 200 cases of ischemic cardiopathies]. / Observaciones clínicas, electrocardiográficas y coronariográficas en 200 casos de cardiopatía isquémica

A correlative analysis of clinical, electro and angiographic data was carried on, in a series of 200 cases of ischemic heart disease. The possible pathophysiological mechanisms of coronary insufficiency in cases with normal arteriograms, are briefly discussed. Based upon the statiscal results, it can be concluded that there is a close relationship between angiographic findings, and the clinical and electrocardiographic data suggestive of coronary insufficiency.