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One-Year Rates And Determinants Of Poststroke Systolic Blood Pressure Control Among Ghanaians.

Fred Stephen Sarfo, Gloria Kyem, Bruce Ovbiagele, John Akassi, Osei Sarfo-Kantanka, Martin Agyei, Elizabeth Badu, Nathaniel Adusei Mensah
Published 2017 · Medicine
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BACKGROUND AND OBJECTIVE Elevated systolic blood pressure (SBP) is potently associated with risk of recurrent strokes. In resource-limited settings, there is a dearth of data on the rates and determinants of uncontrolled SBP among stroke survivors at high risk of recurrent events. The objective of this study is to assess the rates and determinants of uncontrolled SBP over the first year post stroke. METHODS This is a retrospective observational study involving stroke survivors who enrolled into an outpatient neurology clinic in Kumasi, Ghana, between January 2012 and June 2014. Baseline demographic features, clinical characteristics, antihypertensive medications prescribed at each clinic visit, treatment modifications, and clinic blood pressure measurements were recorded. Predictors of uncontrolled SBP during follow-up were assessed using a multivariable logistic regression model. RESULTS A total of 602 stroke survivors enrolled for follow-up within the study period of which 89.8% had hypertension. Up to 35% of subjects had an SBP above 140 mmHg during follow-up clinic visits. Among those with uncontrolled SBP, 17% had antihypertensive treatment modifications during follow-up. Predictors of uncontrolled SBP were SBP at enrollment into clinic, with an adjusted odds ratio (OR [95% confidence interval {CI}]) of 1.31 (1.17-1.47)/10 mmHg increase, and average number of antihypertensive medications prescribed, with an adjusted OR (95% CI) of 1.30 (1.06-1.60) for an increase in the number of antihypertensives prescribed. CONCLUSION A third of stroke survivors had SBP not on target during follow-up possibly due to a combination of therapeutic inertia, apparent treatment resistance, and poor adherence to therapy. Longer-term prospective interventional studies on hypertension control among stroke survivors are warranted in sub-Saharan Africa.
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