A man who says his nearly fatal myocardial infarction was triggered by January’s false missile alert in Hawaii is now suing the state and then-administrator of the Hawaii Emergency Management Agency for damages, CBS News reported.

A machine learning-based risk calculator developed to assess an individual’s long-term risk for atherosclerotic cardiovascular disease (ASCVD) identified 13 percent more high-risk patients and recommended unnecessary statin therapy 25 percent less often than standard risk assessment tools in initial tests, researchers reported in the Journal of the American Heart Association.

Results of the CIRT trial presented at the American Heart Association Scientific Sessions dimmed hopes that low-dose methotrexate can reduce cardiovascular events but furthered researchers’ understanding of which inflammation-targeting therapies might succeed in that regard.

Cocaine, amphetamines and cannabis could raise adolescents’ risk for acute myocardial infarction (AMI), in some cases increasing a teen’s odds for MI by up to seven times, according to research out of Shanghai Jiao Tong University School of Medicine in China.

Though it’s been linked tenuously in the past to psychological stressors and genetics, the majority of cases of spontaneous coronary artery dissection (SCAD) can’t be traced back to a concomitant arteriopathy, inflammatory disorder or evident risk factor, according to research published in the American Journal of Cardiology Oct. 29.

Colder temperatures, stronger winds and fewer hours of sunlight could all raise a person’s risk of myocardial infarction, researchers reported in JAMA Cardiology.

Patients evaluated for chest pain in busier emergency departments experience lower rates of death or hospitalization for acute coronary syndrome (ACS) at both 30 days and one year, according to a study published Oct. 23 in Circulation: Cardiovascular Quality and Outcomes.

Certain antiphospholipid antibodies were detected more often after heart attacks than for age-matched controls, suggesting the markers could be used to identify patients at high risk of myocardial infarction, according to a study published Oct. 22 in the Annals of Internal Medicine.