Health technology assessment: problems and challenges

Department of Radiology, Stanford University School of Medicine, CA 94305.

From a national perspective, the central prerequisite of the proper application of medical technology is the timely determination of efficacy, cost, safety, and societal impact. This applies to both the introduction of the new methods and the retirement of older methods that may have outlived their usefulness. Within that framework, the rapid diffusion of innovative methods of great value must be balanced against the cost of premature enthusiasm for techniques with little or no incremental diagnostic or therapeutic gain. A nongovernmental Council on Health Care Technology Assessment of the Institute of Medicine-National Academy of Sciences was established by the Congress in 1986. The Council was charged to serve as an information clearing-house, a center to promote research and education, and a stimulus to establish better methods of assessment and more prompt identification of potentially important technologies. It represents virtually all of the constituencies concerned with adequate evaluation of new and existing methods. The Council confronts the critical problems of timing, bias, the quality of primary data collection, new methods of secondary data analysis, the nature of the "laboratory" in which technology assessment is best accomplished, the "exploitative" character of technology assessment research, appropriate diffusion, and ethnical issues. The appropriate use of technology in modern health care depends on the resolution of these issues.
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