Vol 9: Pre-Dialysis Systolic Blood Pressure-Variability Is Independently Associated with All-Cause Mortality in Incident Haemodialysis Patients.Reportar como inadecuado



 Vol 9: Pre-Dialysis Systolic Blood Pressure-Variability Is Independently Associated with All-Cause Mortality in Incident Haemodialysis Patients.


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This article is from PLoS ONE, volume 9.AbstractSystolic blood pressure variability is an independent risk factor for mortality and cardiovascular events. Standard measures of blood pressure predict outcome poorly in haemodialysis patients. We investigated whether systolic blood pressure variability was associated with mortality in incident haemodialysis patients. We performed a longitudinal observational study of patients commencing haemodialysis between 2005 and 2011 in East Anglia, UK, excluding patients with cardiovascular events within 6 months of starting haemodialysis. The main exposure was variability independent of the mean VIM of systolic blood pressure from short-gap, pre-dialysis blood pressure readings between 3 and 6 months after commencing haemodialysis, and the outcome was all-cause mortality. Of 203 patients, 37 18.2% patients died during a mean follow-up of 2.0 SD 1.3 years. The age and sex-adjusted hazard ratio HR for mortality was 1.09 95% confidence interval CI 1.02–1.17 for a one-unit increase of VIM. This was not altered by adjustment for diabetes, prior cardiovascular disease and mean systolic blood pressure HR 1.09, 95% CI 1.02–1.16. Patients with VIM of systolic blood pressure above the median were 2.4 95% CI 1.17–4.74 times more likely to die during follow-up than those below the median. Results were similar for all measures of blood pressure variability and further adjustment for type of dialysis access, use of antihypertensives and absolute or variability of fluid intake did not alter these findings. Diastolic blood pressure variability showed no association with all cause mortality. Our study shows that variability of systolic blood pressure is a strong and independent predictor of all-cause mortality in incident haemodialysis patients. Further research is needed to understand the mechanism as this may form a therapeutic target or focus for management.



Autor: Selvarajah, Viknesh; Pasea, Laura; Ojha, Sanjay; Wilkinson, Ian B.; Tomlinson, Laurie A.

Fuente: https://archive.org/



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