Cardiology
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Left Atrial vs. Left Ventricular Parameters for Intervention Decisions
A one-institution study of serial echocardiograms in patients with moderate to severe or severe aortic regurgitation demonstrated that changes in left atrial size and strain changed over time in a similar fashion regardless of sex and age, and were of incremental prognostic value compared to left ventricular size and function.
Screening Relatives of Hypertrophic Cardiomyopathy Patients
A retrospective cohort study of the first-degree relatives of patients with hypertrophic cardiomyopathy (HCM) seen in screening clinics in Denmark has shown that the diagnostic yield of the first visit is 26% and subsequent visits add 4%. The best predictor of the development of HCM in relatives of families with negative genetic findings was maximal left ventricular wall thickness of ≥ 10 mm.
Benefits of Early, Aggressive Cholesterol-Lowering After Myocardial Infarction
A large national registry study of myocardial infarction patients has shown that achieving target levels of non-high-density lipoprotein cholesterol by one month and maintaining them for at least one year reduces subsequent major adverse cardiac events and argues for aggressive early cholesterol management rather than the usual stepwise approach.
Validation of the New American Heart Association’s PREVENT Equations
An analysis of the accuracy of the new American Heart Association PREVENT Equations for predicting 10-year cardiovascular disease mortality in the National Health and Nutrition Examination Survey population has shown excellent discrimination with only modest underprediction and supports its use vs. the pooled cohort equation, which is the current standard.
Benefit of TAVR in Patients with Moderate Aortic Stenosis and Systolic Dysfunction
In this multicenter randomized trial of early transcatheter aortic valve replacement (TAVR) in patients with moderate aortic stenosis, TAVR was not superior to medical surveillance, with TAVR triggered by progression to severe aortic stenosis.
Unique Ethical Concerns with AI-Enabled Cardiovascular Care
Multiple artificial intelligence (AI) -based cardiovascular devices are currently being developed and evaluated. In a recent study, researchers sought to identify specific barriers and facilitators to trustworthy and ethical use of AI in cardiovascular care.
How Does the 12-Lead Help?
You are given the electrocardiogram (ECG) in the figure without the benefit of any history. How would you interpret this tracing? How does the 12-lead ECG help with interpretation of the rhythm?
A New Technique for Predicting Outcomes in Asymptomatic AS
An international study of patients with moderate or asymptomatic severe aortic stenosis has demonstrated that increased amounts of left ventricular fibrosis, as measured by cardiac magnetic resonance imaging, is associated with worse outcomes.
Antithrombotic Treatment for Atrial Fibrillation After Acute Coronary Events
An analysis of the AUGUSTUS trial comparing a P2Y12 inhibitor plus four combinations of double or triple therapy with apixaban, aspirin, and a vitamin K antagonist in patients with atrial fibrillation and a recent acute coronary event or percutaneous coronary intervention has shown that a P2Y12 inhibitor plus apixaban exhibited the lowest rate of major adverse events and major bleeding events.
Screening for Atrial Fibrillation in Older Adults
A two-week ambulatory electrocardiogram monitor in a large group of individuals 70 years of age or older with no history of atrial fibrillation (AF) showed a very low incidence of AF (4.4%), almost all of which was paroxysmal. In less than 2% of the subjects did it represent ≥ 2% of the monitoring time. However, some patients had hours of AF, raising a concern for thromboembolic risk.