This study was designed to examine short-term blood pressure variability (BPV) in patients with different severity and forms of chronic medically treated hypertension. Power spectral analysis of BPV was performed from continuous finger blood pressure (Finapres) recordings. Ten patients with renovascular hypertension (RVHT), 34 with severe essential hypertension (SEHT) and 29 with mild essential hypertension (MEHT) as well as healthy age- and sex-matched control subjects were studied. The RVHT group was characterized by reduced low frequency (LF) power of both systolic and diastolic BPV (P=0.004 and P=0.003 respectively) when compared with the control group. There was also a tendency to lower total power of diastolic BPV (P=0.094). On the contrary, the SEHT group had increased total power of diastolic BPV (P=0.044). However, in the SEHT group, we found no differences in the LF and high frequency power of systolic and diastolic BPV when compared with controls. The MEHT group presented with lower LF power of systolic and diastolic BPV (P=0.028 and P=0.003 respectively) and, in addition, high frequency power of diastolic BPV was lower than in the control group (P=0.020). When the hypertensive groups were compared with each other, total power and LF power of diastolic BPV (P=0.043 and P=0.039 respectively) were lower in the RVHT group than in the SEHT group. In addition, total power of diastolic BPV was lower (P=0.030) in the MEHT group than in the SEHT group. No differences were observed in BPV between the RVHT and MEHT groups. The results show that BPV in hypertensive patients groups behaved differently. This suggests that both the aetiology and severity of hypertension have a significant influence on short-term BPV measured in laboratory conditions and that different control mechanisms are operating in these clinically distinctly different hypertension groups.
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November 2003
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Research Article|
November 01 2003
Short-term blood pressure variability in renovascular hypertension and in severe and mild essential hypertension
Hanna MUSSALO;
*Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital and University of Kuopio, P.O. Box 1777, FIN-20211 Kuopio, Finland
Correspondence: Dr Hanna Mussalo (e-mail Hanna.Mussalo@kuh.fi).
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Esko VANNINEN;
Esko VANNINEN
*Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital and University of Kuopio, P.O. Box 1777, FIN-20211 Kuopio, Finland
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Risto IKÄHEIMO;
Risto IKÄHEIMO
†Department of Medicine, Kuopio University Hospital and University of Kuopio, P.O. Box 1777, FIN-20211 Kuopio, Finland
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Tomi LAITINEN;
Tomi LAITINEN
*Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital and University of Kuopio, P.O. Box 1777, FIN-20211 Kuopio, Finland
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Juha HARTIKAINEN
Juha HARTIKAINEN
†Department of Medicine, Kuopio University Hospital and University of Kuopio, P.O. Box 1777, FIN-20211 Kuopio, Finland
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Publisher: Portland Press Ltd
Received:
October 01 2002
Revision Received:
May 02 2003
Accepted:
July 01 2003
Accepted Manuscript online:
July 01 2003
Online ISSN: 1470-8736
Print ISSN: 0143-5221
© 2003 The Biochemical Society
2003
Clin Sci (Lond) (2003) 105 (5): 609–614.
Article history
Received:
October 01 2002
Revision Received:
May 02 2003
Accepted:
July 01 2003
Accepted Manuscript online:
July 01 2003
Citation
Hanna MUSSALO, Esko VANNINEN, Risto IKÄHEIMO, Tomi LAITINEN, Juha HARTIKAINEN; Short-term blood pressure variability in renovascular hypertension and in severe and mild essential hypertension. Clin Sci (Lond) 1 November 2003; 105 (5): 609–614. doi: https://doi.org/10.1042/CS20020268
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