William Kaelin, Peter Ratcliffe, and Gregg Semenza have jointly won the 2019 Nobel Prize "for their discoveries of how cells sense oxygen," the Nobel Assembly at Karolinska Institutet announced today.

Arm and hand prosthetics have long been the focus for researchers aiming to offer sensation as well as more precise and easily controlled movement by connecting patient nerves to sensors in the prosthetic. But now that effort has been extended to leg prosthetics as well.

A large-scale U.K. clinical trial of a portable electronic nose device has shown it is possible to distinguish bacterial from viral infection in an unselected population of patients presenting with a respiratory tract infection (RTI) symptoms, at the point of care.

Abbott Laboratories had a busy Transcatheter Cardiovascular Therapeutics (TCT) 2019 conference. Among the news it generated was the unveiling of new analyses of the COAPT trial on the cost-effectiveness of Mitraclip vs. guideline-directed medical therapy (GDMT) alone in heart failure patients with secondary mitral regurgitation (MR).

SAN FRANCISCO – Abbott Laboratories expects that its self-expanding transcatheter aortic valve replacement (TAVR) system Portico will be able to become a top competitive product. A pivotal trial of Portico has found that the implant is noninferior to current FDA-approved TAVR systems that are marketed in the U.S. The results from the 750-patient, randomized trial were presented here last week at the Transcatheter Cardiovascular Therapeutics (TCT) conference.

SAN FRANCISCO – As the transcatheter aortic valve replacement (TAVR) field matures, it is becoming increasingly difficult to develop a new implant that can distinguish itself vs. competitors. The incremental benefits are narrowing rapidly, making it tough to distinguish new iterations from one another using standard, randomized trials.