The American journal of medicine
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Randomized Controlled Trial
Hemoglobin A1c predicts diabetes but not cardiovascular disease in nondiabetic women.
Hemoglobin A1c (HbA1c) is a marker of cumulative glycemic exposure over the preceding 2- to 3-month period. Whether mild elevations of this biomarker provide prognostic information for development of clinically evident type 2 diabetes and cardiovascular disease among individuals at usual risk for these disorders is uncertain. ⋯ These prospective findings suggest that HbA1c levels are elevated well in advance of the clinical development of type 2 diabetes, supporting recent recommendations for lowering of diagnostic thresholds for glucose metabolic disorders. In contrast, the association of HbA1c with incident cardiovascular events is modest and largely attributable to coexistent traditional risk factors.
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Multicenter Study
African Americans at risk for increased iron stores or liver disease.
We sought to determine the prevalence of elevated measures of iron status in African Americans and whether the combination of serum ferritin concentration >200 microg/L for women or >300 microg/L for men and transferrin saturation in the highest quartile represents increased likelihood of mutation of HFE, self-reported iron overload or self-reported liver disease. ⋯ Serum ferritin concentration >200 microg/L for women or >300 microg/L for men in combination with transferrin saturation >29% for women or >35% for men occurs in approximately 7% of adult African American primary care patients. Patients with this combination of iron test results should be evaluated for increased body iron stores or liver disease.
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Chronic obstructive pulmonary disease (COPD) is a preventable and treatable systemic disease with symptoms that overlap other respiratory illnesses. An estimated 24 million adults in the United States have COPD, but >50% of them are misdiagnosed or undiagnosed. ⋯ Influenza vaccinations will also reduce acute respiratory illness in patients with COPD. With increasing awareness of COPD and earlier diagnosis, implementation of treatment guidelines and smoking-cessation efforts may lead to more effective management of this disease, which is projected to be the third leading cause of death in the United States by 2020.
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Early use of beta-blockers is a quality indicator for the treatment of patients with non-ST-segment elevation myocardial infarction (NSTEMI), despite limited data from randomized clinical trials in this population. We sought to determine the impact of acute beta-blocker therapy on outcomes in patients with NSTEMI. ⋯ The majority of NSTEMI patients receive acute beta-blocker therapy. Certain patient subgroups remain undertreated. Because treatment with acute beta-blockers was associated with improved clinical outcomes in nearly all patient subgroups assessed, broader use in patients with NSTEMI appears warranted.
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The aim of this study was to observe how chronic obstructive pulmonary disease (COPD) is diagnosed and treated in primary care settings and to identify best practices. Researchers interviewed or visited physicians and staff at 25 primary care practices across the United States, focusing on small practices. All interviewers used a standard interview tool to capture anecdotal and quantitative data. ⋯ Practice inefficiencies are responsible for many clinical shortcomings in COPD management. Although improving clinical understanding is important, it is equally important that overburdened and rushed primary care practices optimize workflow. This can be accomplished through better use of support staff and improved scheduling of spirometry testing in order to implement clinical guidelines without interfering with other essential practice tasks.