Devices for measuring 24 h blood pressure.
INTRODUCTION: When the technique of blood pressure measurement was introduced into clinical medicine during the early years of this century, the importance of accuracy and the limitations of the technique were well recognized [1]. However, the standards called for by the clinicians and scientists who introduced the technique were relaxed as the twentieth century progressed. Now, once again, the methodology of blood pressure measurement both in clinical practice and in hypertension research is recognized as a cause for concern [2,3]. The history of ambulatory blood pressure measurement (ABPM) [1,3] and the development of validatory techniques [4] have been reviewed recently.
O'Brien
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The Blood Pressure Unit, Beaumont Hospital, Dublin, Ireland.