Comparison of 44-Hour and Fixed 24-Hour Ambulatory Blood Pressure Monitoring in Dialysis Patients
Version of Record online: 31 OCT 2013
©2013 Wiley Periodicals, Inc.
The Journal of Clinical Hypertension
Volume 16, Issue 1, pages 63–69, January 2014
How to Cite
J Clin Hypertens (Greenwich). 2014;16:63–69. ©2013 Wiley Periodicals, Inc.
- Issue online: 11 JAN 2014
- Version of Record online: 31 OCT 2013
- Manuscript Revised: 16 SEP 2013
- Manuscript Accepted: 16 SEP 2013
- Manuscript Received: 27 JUL 2013
- Foundation for Science and Technology Program in Health of Jiangsu
The two most commonly used strategies to evaluate dialysis patients' blood pressure (BP) level are 44-hour and 24-hour ambulatory blood pressure monitoring (ABPM). The objective of this study was to find an appropriate 24-hour period that correlated well with the 44-hour BP level and determine the differences between these strategies. In a group of 51 dialysis patients, the authors performed 44-hour ABPM and extracted data for a fixed 24-hour ABPM. The fixed 24-hour ABPM started at 6 am on the nondialysis day. A strong correlation was found between all parameters of 44-hour and the fixed 24-hour ABPM, with paired sample t test showing only small magnitude changes in a few parameters. Both 24-hour ABPM and 44-hour ABPM were superior to clinic BP in predicting left ventricular mass index (LVMI) by multiple regression analysis. It was found that 44-hour ambulatory arterial stiffness index (AASI), but not 24-hour AASI, had a positive association with LVMI (r=0.328, P=.021). However, after adjustment for 44-hour systolic blood pressure, this association disappeared. Fixed 24-hour ABPM is a good surrogate of 44-hour ABPM to some extent, while 44-hour ABPM can provide more accurate and detailed information.