Background: Stroke remains more common in the "buckle" of the stroke belt, and disproportionately impacts African Americans. The reasons for this racial disparity are poorly understood and are not entirely explained by traditional stroke risk factors. The PeRiodontal treatment to Eliminate Minority InEquality and Rural disparities in Stroke (PREMIERS) study will evaluate the effect of periodontal treatment on recurrent vascular events and stroke risk factors among ischemic stroke and transient ischemic attack patients.
Design: Eligibility for the trial includes a non-disabling stroke confirmed by neuroimaging or Transient Ischemic Attack (TIA), being at least 18 years of age, having ≥ 5 natural teeth with ≥ 2 interproximal sites with ≥ 4 mm of clinical attachment loss and at least 2 sites with probing depth of ≥ 5 mm, and who are able to provide written informed consent. Within 90 days of the index event, patients are randomly assigned to intensive or initial standard cycle of supragingival mechanical scaling, polishing, and oral health instruction and followed for 1 year. The primary outcome is a composite of death, myocardial infarction and stroke or TIA. Secondary outcomes include A1C, fasting lipid profile, triglycerides, high sensitivity C-reactive protein, carotid intimal medial thickness, and blood pressure. A five year enrollment period followed by an addition one year of follow-up is planned.
Background and purpose: Atrial Fibrillation (AF) is the most common cardiac cause of ischemic stroke. However, the relation between AF and stroke care outcomes in diverse populations is understudied. We aimed to evaluate sex and race-ethnic disparities associated with AF in hospital stroke outcomes utilizing data from the FLorida PuErto Rico Atrial Fibrillation (FLiPER-AF) Stroke Study.
Methods: The study included 104,308 ischemic stroke cases with available information on AF status enrolled in a state-wide stroke registry from 2010 to 2016. Multivariable logistic regression models were performed to evaluate the association between AF and stroke outcomes and the modification effects on the associations by sex and by race-ethnicity, adjusted for socio-demographic status, vascular risk factors and stroke severity.
Results: AF was present in 23% of ischemic stroke cases. AF was associated with worse disability at discharge (OR=1.11, 95% CI, 1.04-1.18), less discharge to home (OR=0.89, 0.85-0.92), and longer length of hospital stay (LOS>6 days, OR=1.53, 1.46-1.60). Interaction analyses showed that the association between AF and less discharge to home was stronger in women than men (p for interaction <0.001), as well as in FL-whites than in FL-blacks, FL-Hispanics or PR-Hispanics (p for interaction=0.002). The association between AF and prolonged LOS was more prominent in PR-Hispanics than in FL-blacks, FL-Hispanics, or FL-whites (p for interaction <0.001). From 2010 to 2016, the effects of AF on hospital length of stay attenuated (p for interaction<0.001).
Conclusions: AF was associated with poor disability at discharge, less discharge to home, and prolonged hospital length of stay for acute stroke care. The effect of AF on length of stay attenuated over time. Sex and race-ethnic disparities were observed in the effect of AF on being less discharge to home and prolonged hospital stay. Further research is needed to identify and modify the biologic and systems of care contributors to these disparities.