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Increased Atrial Fibrillation Risk After Early-Stage Breast Cancer Diagnosis

This content is a clinical-news roundup covering several unrelated findings rather than a single unified theory: the diagnostic-accuracy characteristics (sensitivity, specificity, positive/negative predictive value) of a pediatric autism-spectrum-disorder screening instrument; the mechanism and outcome benefits of an SGLT2-inhibitor class drug in diabetic kidney disease; pharmacogenomic/comorbidity risk-stratification for a severe cutaneous adverse drug reaction; a shift in neonatal intensive care case-mix; and an epidemiologic association between early-stage breast cancer diagnosis (and its chemotherapy treatment) and elevated atrial fibrillation risk over time. The unifying disciplinary thread is clinical epidemiology and evidence-based medicine — using screening-test performance metrics, randomized-trial endpoints, and cohort/hazard-ratio analysis to inform diagnostic and prescribing decisions across pediatrics, nephrology, rheumatology, neonatology, and oncology.