Beta-adrenergic receptor blockade has been demonstrated to reduce obstruction of the left ventricular outflow tract in patients with idiopathic hypertrophic subaortic stenosis (IHSS) and has also ...

In some instances, the basis for stenosis is congenital; in others, it is acquired either through the direct effects of rheumatic endocarditis or through calcification of an acquired or congenital ...

In conclusion, cardiac CTA is being evaluated for use in the diagnosis of coronary artery stenosis or for the evaluation of acute chest pain. Although several studies have assessed diagnostic ...

CTA chief of staff Nora Leerhsen will become the acting president of the transit agency, taking over after Dorval Carter’s retirement at the end of January. Leerhsen, a high-level CTA official ...

CTA as a substitute for coronary angiography for the diagnosis of coronary artery stenosis does not meet the CTAF TA criteria 2 through 5 for safety, efficacy and improvement in health outcomes..

Provided Share Chicago Transit Authority chief of staff Nora Leerhsen was named acting president of the agency Wednesday as CTA President Dorval Carter Jr. prepares to leave the post. Leerhsen ...

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Recovery from spinal stenosis surgery can vary based on what type of procedure was performed and the number of vertebrae operated on. Activity restrictions will be put in place during the initial ...

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Leerhsen was appointed the new CTA head at the agency's board meeting today and will receive an annual salary of $278,703.73, an agency spokesperson confirmed to Crain's. The decision comes days ...

So brutally cold that it can crack steel rails. And what does the CTA do about that? They call in their “protectors of the railroad.” That’s the team of hundreds of workers that the transit ...