University of California, Irvine and Philadelphia-based Jefferson Health researchers have identified fundamental structural and functional differences between two major causes of mitral valve stenosis ...

Learn how ATTR-CM can cause spinal stenosis and back pain, what the diagnosis process looks like, and how to best treat and ...

Background Aortic stenosis (AS) frequently coexists with heart failure (HF), but its prevalence, prognostic impact and management across the full HF spectrum remain incompletely characterised. Methods ...

Objective To evaluate the efficacy and safety of the subclavian loop catheter technique for endovascular stenting of vertebral artery ostial stenosis (VAOS). Methods We retrospectively reviewed all ...

Aortic stenosis is a narrowing of the aortic valve, which connects the heart to the rest of the body. It affects millions of people and can be fatal if left untreated. At present, there are no ...

An E.P.A. site listing the causes of climate change no longer includes the main one: human activity. By Lisa Friedman The Environmental Protection Agency has quietly removed the fact that human ...

Improvements in medical therapy, carotid-artery stenting, and carotid endarterectomy call into question the preferred management of asymptomatic carotid stenosis. Whether adding revascularization to ...

Adding stenting to intensive medical therapy significantly improves outcomes among patients with asymptomatic high-grade carotid stenosis compared with drug treatment alone, a bar not met by carotid ...

Coral bleaching isn’t just an ocean crisis. Here’s how the global event endangers food security, local jobs—and the land itself. Sea water divides the sunset and a ghost land of corals in New Ireland, ...

WASHINGTON (AP) — A White House announcement about autism is expected Monday afternoon after President Donald Trump's weekend comment that "I think we found an answer" to the developmental disorder.