Air pollution may worsen PAH

Air pollution is known to be bad for heart and lung diseases, but this study looked at whether it affected pulmonary arterial hypertension (PAH) in particular.

They followed a cohort of patients for about three years and found that not only does exposure to high levels of air pollution increase the risk of death or lung transplantation for PAH patients, it made their pulmonary hypertension worse. People who lived in highly polluted areas were more likely to be categorized as intermediate-high-risk or high-risk even at the beginning of the study.

Read the Journal of the American Heart Association article