Structural Heart Disease

Structural heart diseases include any issues preventing normal cardiovascular function due to damage or alteration to the anatomical components of the heart. This is caused by aging, advanced atherosclerosis, calcification, tissue degeneration, congenital heart defects and heart failure. The most commonly treated areas are the heart valves, in particular the mitral and aortic valves. These can be replaced through open heart surgery or using cath lab-based transcatheter valves or repairs to eliminate regurgitation due to faulty valve leaflets. This includes transcatheter aortic valve replacement (TAVR). Other common procedures include left atrial appendage (LAA) occlusion and closing congenital holes in the heart, such as PFO and ASD. A growing area includes transcatheter mitral repair or replacement and transcatheter tricuspid valve repair and replacement.

CT has been used for planning and procedural guidance in pulmonary vein isolation (PVI) for about 20 years. It shows the anatomy to the electrophysiologist. The EPs also can load the imaging into their EP mapping system. It also shows them the location of the esophagus and the phrenic nerve so they can avoid these during the procedures. #PVI #EPeeps

VIDEO: The expanding role of cardiac CT in electrophysiology

Harold Litt, MD, division chief of cardiothoracic imaging and director of the Center for Advanced CT Imaging Sciences at the Perelman School of Medicine of the University of Pennsylvania, explains the role of cardiac CT in EP procedures.

A transcatheter aortic valve replacement (TAVR) procedure being performed at Intermountain Healthcare. Image from Intermountain Healthcare

Severe prosthesis-patient mismatch after TAVR linked to a higher risk of death

Researchers examined data from 82,000 TAVR patients, focusing on echocardiography-defined PPM. They shared their results in JACC: Cardiovascular Imaging.

VIDEO: Role of PFO closure in stroke prevention

John Carroll, MD, director of interventional cardiology and professor of medicine at the University of Colorado, explains the state of  transcatheter closure of patent foramen ovale (PFO) to prevent stroke.

New-onset AFib, linked to worse outcomes and higher healthcare costs, seen in 3.5% of TEER patients

Patients who developed new-onset AFib tended to be sicker than those who did not. 

A FEOPS image of a Watchman LAA occluder device being checked for virtual sizing in an anatomical model of the patient's left atrial appendage. Dhanunjaya Lakkireddy, MD, explains the role and technology of LAA closure devices in managing AFib patients.

VIDEO: The value of left atrial appendage occlusion in AFib patients

Dhanunjaya Lakkireddy, MD, executive medical director for the Kansas City Heart Rhythm Institute at HCA Midwest Health, explains recent trials in left atrial appendage occlusion (LAAO) and how the therapy helps atrial fibrillation (AFib) patients. 

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5 key predictors of heart failure hospitalizations after TAVR

Diabetes and atrial fibrillation are just some of the factors that can increase a patient's risk of being hospitalized for heart failure within one year of undergoing a successful TAVR procedure.

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Preventing AKI after TAVR may help lessen the impact of chronic kidney disease

If researchers can find ways to prevent AKI after TAVR, it could help decrease the risk of poor outcomes in more ways than one. 

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Underdiagnosed and undertreated: How cardiologists and primary care physicians are working together to identify patients with severe aortic stenosis

Sponsored by Medtronic

Aortic stenosis (AS) is one of the most common—and growing—cardiac conditions. In particular, the prevalence of severe AS rises markedly among elderly Americans, affecting an estimated 3.4% of Americans 75 and older.[1]

Around the web

Ron Blankstein, MD, professor of radiology, Harvard Medical School, explains the use of artificial intelligence to detect heart disease in non-cardiac CT exams.

Eleven medical societies have signed on to a consensus statement aimed at standardizing imaging for suspected cardiovascular infections.