[Medical technology and health. A lot of crunching but few nuts?]

The present work pretend to describe the development achieved in the field of health technology assessment and to propose a set of criteria to evaluate them, with the intention that it will lead to the development of health programs and policy with a tendency to maximize effectiveness, efficiency and quality, within a frame of increasing needs and scarce technical and economic resources for health care. For this work, a comprehensive review was carried out about the background of health technology adoption in our country, and the context by which to evaluate the accessibility and utilization of the health technology. In the section for technology assessment, it is propose a method to evaluate based upon the natural history of disease, that is, the traditional form of health assessment is restricted to a cross section in time (vertical evaluation), and in this study the authors propose a model with a horizontal approach, that should offer as its main virtues the development of guidelines with regards to prevention, diagnosis and treatment, in addition to cost containment, in support to a more effective and higher quality medical practice.