Atrial fibrillation

Biomarker

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Heart Rhythm

Air pollution linked to irregular heartbeat risk in US adults

Exposure to 13.5 parts per billion more nitrogen dioxide was linked to a 29% higher relative risk of atrial fibrillation, an irregular heartbeat.Exposure to 13.5 parts per billion more nitrogen dioxide was linked to a 29% higher relative risk of atrial fibrillation, an irregular heartbeat.

Cohort study of 6,618 adults from US metropolitan areas, median 16.5 yearsPopulations

Limit: Residential pollution estimates may misrepresent personal exposure

Nature Cardiovascular Research

Computer model assesses right heart chamber size and function

An observational study trained the model in 17,141 cardiology outpatients and validated its ultrasound heart scan assessments in two other patient groups.An observational study trained the model in 17,141 cardiology outpatients and validated its ultrasound heart scan assessments in two other patient groups.

Computational study of cardiology and primary care patientsBiomarkers

Limit: Prediction errors increased at extremes of right ventricular size and function