| Short-term reproducibility of ambulatory blood pressure monitoring in autosomal dominant polycystic kidney disease. | |
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MedLine Citation:
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PMID: 21415814 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND OBJECTIVES: Nondipping, defined as a less than 10% decline in Night:Day (N:D) ratio of blood pressure using 24 h ambulatory blood pressure monitoring, is associated with poor cardiovascular outcomes. However, its reproducibility has been questioned in autosomal dominant polycystic kidney disease. MATERIALS AND METHODS: Twenty-five of 29 recruited hypertensive or prehypertensive patients with autosomal dominant polycystic kidney disease completed ambulatory blood pressure monitoring on two occasions, 7-15 days apart, on a stable antihypertensive regimen. Daytime and night-time were defined as 6:00-21:59 h and 22:00-5:59 h, respectively. Correlation and concordance coefficients for systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate were determined based on N:D and Asleep:Awake (A:A) ratios. Consistency of dipping was assessed by using Cohen's Kappa statistics. RESULTS: Mean (±standard deviation) for age, estimated glomerular filtration rate, differences in daytime and night-time SBP and DBP were 43.12 years (8.55 years), 63.1 ml/min (20.5 ml/min), 11.74 mmHg (8.2 mmHg), and 10.82 mmHg (6.4 mmHg), respectively. Seventeen of 25 (68%) and 18 of 25 (72%) participants maintained the same dipping category based on D:N or A:A separation. Cohen's Kappa was 0.34 for D:N ratio and 0.38 for A:A ratio. Correlation and concordance coefficients were 0.89 and 0.88 for daytime SBP, 0.91 and 0.91 for daytime DBP, 0.79 and 0.78 for night-time SBP, 0.81 and 0.80 for night-time DBP, 0.58 and 0.56 for N:D ratio of SBP, and 0.56 and 0.53 for N:D ratio of DBP. Coefficients for A:A ratio were almost identical to N:D values except for A:A ratios of SBP (0.69 and 0.67) and DBP (0.48 and 0.45). CONCLUSION: Repeated measures of SBP and DBP, 7-15 days apart, are highly correlative and concordant in the studied population, but nondipping, even though predominant, was found to be modestly reproducible. |
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Authors:
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Frederic F Rahbari-Oskoui; Dana C Miskulin; Marie C Hogan; Odicie Fielder; Vicente E Torres; James E Bost; Arlene Beth Chapman |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: Blood pressure monitoring Volume: 16 ISSN: 1473-5725 ISO Abbreviation: Blood Press Monit Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-03-18 Completed Date: 2011-07-14 Revised Date: 2012-04-04 |
Medline Journal Info:
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Nlm Unique ID: 9606438 Medline TA: Blood Press Monit Country: England |
Other Details:
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Languages: eng Pagination: 47-54 Citation Subset: IM |
Affiliation:
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Renal Division, Department of Medicine, Emory University School of Medicine Atlanta, Georgia 30322, USA. frahbar@emory.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Pressure* Blood Pressure Monitoring, Ambulatory / methods* Female Humans Hypertension / complications, physiopathology Male Middle Aged Polycystic Kidney, Autosomal Dominant / complications, physiopathology* Reproducibility of Results Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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U01 DK062408-03/DK/NIDDK NIH HHS; UL1 RR025008/RR/NCRR NIH HHS; UL1 RR025008-01/RR/NCRR NIH HHS; UO1-DK062408/DK/NIDDK NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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