Stenosis News and Research

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A stenosis is an abnormal narrowing in a blood vessel or other tubular organ or structure.

New study may help better understand mechanisms that control blood pressure

Many questions remain about the mechanisms that control blood pressure, particularly in relation to hypertension.

1 Nov 2019

More patients may opt for minimally invasive heart valve procedure

Since August, when the Food and Drug Administration approved a minimally invasive heart valve procedure for an expanded group of patients with aortic stenosis, Raj Makkar, MD, vice president of Cardiovascular Innovation and Intervention at Cedars-Sinai, says many more patients are opting for the procedure known as transcatheter aortic valve replacement.

15 Oct 2019

High-risk surgical patients with severe aortic stenosis can benefit from new TAVR system

The Portico IDE study found that 30-day safety and one-year effectiveness outcomes of a novel self-expanding transcatheter aortic valve replacement (TAVR) system for patients with severe aortic stenosis (AS) at high or extreme-risk for surgery was noninferior to contemporary FDA-approved TAVR systems available in the United States.

30 Sep 2019

Study: Revascularization with PCI or CABG prolongs survival in patients with left main disease

Patients with left main coronary artery disease (LMCAD) typically have a poor prognosis due to the large amount of myocardium at risk.

30 Sep 2019

Mutated ciliary genes tied to heart valve birth defect

The heart pumps blood throughout the body to provide the needed oxygen and nutrients. In the heart, blood flows to get oxygen from the lungs to deliver to the cells. Some of the most important structures in the heart are the valves, because they prevent the backflow of blood, avoiding the mixture of oxygenated blood with the ones that still need to be oxygenated.

17 Sep 2019

Antibiotic-impregnated shunt could prevent hydrocephalus infections, save millions

A new study reported that using shunt tubing impregnated with two common antibiotics is effective in preventing infection after brain surgery to relieve hydrocephalus. This simple but highly effective practice could save millions of pounds, prevent devastating brain damage, and shorten hospital stay and antibiotic use duration.

13 Sep 2019

Researchers explore remodeling of cardiac tissues post-aortic valve replacement

University of Colorado Boulder engineers and faculty from the Consortium for Fibrosis Research & Translation at the University of Colorado Anschutz Medical Campus have teamed up to develop biomaterial-based "mimics" of heart tissues to measure patients' responses to an aortic valve replacement procedure, offering new insight into the ways that cardiac tissue re-shapes itself post-surgery.

12 Sep 2019

Latest advances in cardiovascular medicine to be unveiled

Journalists looking to stay abreast of the hottest research in cardiology are invited to follow the press program for ESC Congress 2019, this year held together with the World Congress of Cardiology.

13 Aug 2019

BIDMC scientists develop new imaging technique to identify patients with coronary artery disease

Coronary artery disease - caused by plaque buildup in the artery walls that constricts the flow of blood to the heart - is the most common form of heart disease and the leading cause of death for both men and women in the United States.

27 Jul 2019

Catheter-based valve replacement procedure safe for patients with common heart defect

A new analysis conducted by investigators at the Cedars-Sinai Smidt Heart Institute shows for the first time that patients with a common heart defect who undergo catheter-based valve replacement procedures have the same survival and complication rates as patients without the defect who undergo the same procedure.

12 Jun 2019

New robotic technology increases the safety and precision of spinal fusion surgeries

A new technology that increases the safety and precision of spinal fusion surgeries while reducing the time needed for the procedure now is available at Rush University Medical Center.

3 Jun 2019

Practical clinical applications of cardiac FFR-CT analysis

In the current issue of Cardiovascular Innovations and Applications volume 4, issue 1, pp. 31-42(12) ; DOI https://doi.org/10.15212/CVIA.2019.0003, Talal Alzahrani, MD, Ahmed Tashkandi, MD, Abdullah Sarkar, MD, Claudio Smuclovisky, MD, James P. Earls, MD and Andrew D. Choi, MD, from the Division of Cardiology, The George Washington University School of Medicine, Washington, DC, USA; Department of Medicine, University of Miami, Miami, FL, USA; Diagnostic Imaging Center, Holy Cross Hospital, Fort Lauderdale, FL, USA and the Department of Radiology, The George Washington University School of Medicine, Washington, DC, USA consider practical clinical applications of cardiac computed tomography-derived fractional flow reserve.

9 May 2019

Scientists propose new way of delivering anti-thrombosis drugs to damaged blood vessels

Scientists from Tomsk Polytechnic University with colleagues from Great Britain Germany, China, and Switzerland have proposed a new way of delivering anti-thrombosis drugs to the damaged areas of the blood vessels.

8 May 2019

Study examines the effects of TAVR with balloon-expandable valve for low-risk patients

For patients with aortic stenosis that cannot be treated with medication, surgical and transcatheter aortic valve replacement can offer effective treatment.

6 May 2019

Early treatment of patients with severe aortic stenosis may be better than watch-and-wait approach

Patients with severe aortic stenosis who have no symptoms may benefit more from an aggressive strategy of early valve replacement than from a conservative watch-and-wait approach, according to new research published today online in The Annals of Thoracic Surgery.

27 Mar 2019

TAVR procedure safe in patients with unusual valve anatomy

Compared with patients who had a typical tricuspid aortic valve, patients with a more unusual bicuspid aortic valve had a similar rate of death but a higher likelihood of stroke after undergoing a procedure to replace the valve by threading surgical equipment through an artery, according to research presented at the American College of Cardiology's 68th Annual Scientific Session.

18 Mar 2019

Study finds TAVR to be as good as open-heart surgery for patients at low surgical risk

A new trial comparing self-expanding transcatheter aortic valve replacement (TAVR) to standard open-heart surgery for valve replacement—this time in patients with severe aortic stenosis who are considered low surgical risk—found no difference in the combined rate of disabling stroke or death from any cause at two years.