Nephrol Dial Transplant (2002) 17: 1737-1741
© 2002 European Renal Association-European Dialysis and Transplant Association
Invited Comment
Ambulatory blood pressure monitoring: an essential tool for blood pressure assessment in uraemic patients
1 Renal Unit, Parhon Hospital, Iasi, Romania and 2 Department of Nephrology, Guy's Hospital, London, UK
Keywords: ambulatory blood pressure monitoring; blood pressure circadian variability; diurnal blood pressure; non-dipping; uraemia
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Introduction
Ambulatory blood pressure monitoring (ABPM) has been growing steadily in popularity, as equipment becomes more portable, accurate and affordable, software packages more powerful, and physicians more accepting of its advantages (see Table 1
). However, the most recent guidelines from National and International Hypertension Societies only advocate its use in difficult cases (Table 2
) [1]. This conservatism sits uncomfortably alongside the repeated observation that up to one in four so-called hypertensive patients have normal ambulatory BP levels away from the clinical setting [2].
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From the early use of direct intra-arterial blood pressure (BP) recordings, the beat-to-beat, minute-to-minute variability of BP has been appreciated [3]. Diurnal BP variation has been studied intensively for several decades. Diurnal BP normally falls with sleep; this behaviour is normally distributed in normotensive
Recent prospective trials examining the predictive power of ABPM
ABP levels
ABP circadian variability
Conclusions
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