Cardiology
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Researchers Report on the Efficacy of the Subcutaneous Implantable Cardioverter-Defibrillator
An FDA-mandated post-approval study of the subcutaneous cardioverter-defibrillator system in a real-world population revealed excellent safety and efficacy over five years.
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This Leadless Dual-Chamber Pacing System Is Coming
The initial 90-day experience with a dual-chamber leadless pacemaker system showed reliable atrial pacing and atrioventricular synchrony, with complication rates similar to conventional lead-based systems.
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Rates of Ad Hoc PCI Remain Higher for Multivessel and Left Main Disease
In this retrospective analysis of patients from the New York state percutaneous coronary intervention (PCI) and coronary artery bypass grafting databases, ad hoc PCI was performed frequently among patients with left main and multivessel disease. Also, variability in ad hoc PCI use among hospitals and physicians for these populations was high.
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Alcohol: Double-Edged Sword, or Hatchet?
Researchers reported consuming two to 14 alcoholic drinks per week was associated with fewer major adverse cardiovascular events, which the authors noted could be explained in part by less stress-related neural activity demonstrated on PET and CT scans.
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Can Physical Activity Thwart the Negative Cardiometabolic Effects of Obesity?
Compared to normal-weight workers, overweight or obese employees in Spain exhibited a higher prevalence of risk factors for cardiovascular disease, which can be partially mitigated by regular exercise.
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Cardiologists Consolidate, Update Guidance for Chronic Coronary Disease Management
Researchers incorporated shared decision-making, social determinants of health, and team-based care principles.
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What Kind of Bundle Branch Block?
Assuming QRS widening in a supraventricular rhythm is not the result of hyperkalemia or other toxicity, and assuming the patient has not been diagnosed with Wolff-Parkinson-White syndrome, classification of 12-lead ECG conduction disturbances can be simplified into one of three basic categories. The tracing in the figure illustrates this concept.
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Angiographic Fractional Flow Reserve Is Useful, But Not Ready for Prime Time
Using a blinded, independent core laboratory, researchers compared five commercially available angiographic fractional flow reserve (FFR) methods to the pressure wire-based FFR technique. The authors found the diagnostic accuracy of these software techniques surpassed that of two-dimensional quantitative coronary angiography, but fell short of what has been reported in validation trials run by individual vendors.
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The Value of the GRACE Risk Score for Triaging Non-ST-Elevation Acute Coronary Syndrome Patients
A prospective, pragmatic, cluster, randomized clinical study of using the Global Registry of Acute Coronary Events (GRACE) risk score and standard care for the management of non-ST-elevation acute coronary syndromes failed to demonstrate more use of guideline-recommended care or better outcomes.
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Alcohol: Double-Edged Sword, or Hatchet?
Researchers reported consuming two to 14 alcoholic drinks per week was associated with fewer major adverse cardiovascular events, which the authors noted could be explained in part by less stress-related neural activity demonstrated on PET and CT scans.