SciCombinator

Discover the most talked about and latest scientific content & concepts.

Journal: JACC. Cardiovascular interventions

31

Ischemic heart disease secondary to coronary vascular dysfunction causes angina and impairs quality of life and prognosis. About one-half of patients with symptoms and signs of ischemia turn out not to have obstructive coronary artery disease, and coronary vascular dysfunction may be relevant. Adjunctive tests of coronary vasomotion include guidewire-based techniques with adenosine and reactivity testing, typically by intracoronary infusion of acetylcholine. The CorMicA (Coronary Microvascular Angina) trial provided evidence that routine management guided by an interventional diagnostic procedure and stratified therapy improves angina and quality of life in patients with angina but no obstructive coronary artery disease. In this paper, the COVADIS study group provide a comprehensive review of why, how, and when coronary vascular dysfunction should be assessed invasively. They discuss the rationale through a shared understanding of vascular pathophysiology and clinical evidence. They propose a consensus approach to how an interventional diagnostic procedure is performed with focus on practical aspects. Finally, the authors discuss the clinical scenarios in patients with stable and acute coronary syndromes in which measurement of coronary vascular function may be helpful for patient care.

31

The aim of this study was to compare late-term clinical outcomes among patients treated with ultrathin-strut (60-μm) bioresorbable-polymer sirolimus-eluting stents (BP SES) and thin-strut (81μm) durable-polymer everolimus-eluting stents (DP EES).

27

Coronary embolism is the underlying cause of 3% of acute coronary syndromes but is often not considered in the differential of acute coronary syndromes. It should be suspected in the case of high thrombus burden despite a relatively normal underlying vessel or recurrent coronary thrombus. Coronary embolism may be direct (from the aortic valve or left atrial appendage), paroxysmal (from the venous circulation through a patent foramen ovale), or iatrogenic (following cardiac intervention). Investigations include transesophageal echocardiography to assess the left atrial appendage and atrial septum and continuous electrocardiographic monitoring to assess for paroxysmal atrial fibrillation. The authors review the historic and contemporary published data about this important cause of acute coronary syndromes. The authors propose an investigation and management strategy for work-up and anticoagulation strategy for patients with suspected coronary embolism.

Concepts: Cardiology, Heart, Blood vessel, Stroke, Atrial fibrillation, Thrombus, Left atrial appendage, Atrial septal defect

27

25

This study sought to perform a randomized noninferiority trial of radiation exposure during cardiac catheterization comparing femoral access (FA) with left radial access (LRA) and right radial access (RRA).

Concepts: Atherosclerosis, Angina pectoris, Cardiology, Atheroma, Coronary catheterization, Angiography, Pulse, Cardiac catheterization

25

This study sought to determine radiation exposure across the cranium of cardiologists and the protective ability of a nonlead, XPF (barium sulfate/bismuth oxide) layered cap (BLOXR, Salt Lake City, Utah) during fluoroscopically guided, invasive cardiovascular (CV) procedures.

Concepts: Medicine, Great Salt Lake, Utah, Salt Lake City, Salt Lake County, Utah, Real Salt Lake, Wasatch Front, Salt Lake City International Airport

24

This study sought to determine whether there is an ideal level of platelet reactivity (PR) to optimize safety and efficacy within the large multicenter ADAPT-DES (Assessment of Dual AntiPlatelet Therapy With Drug-Eluting Stents) study of 8,582 patients receiving successful drug-eluting stent implantation.

Concepts: Cardiology, Percutaneous coronary intervention, Antiplatelet drug, Stent, Restenosis, Drug-eluting stent, Coronary stent, Bare-metal stent

23

The aim of this study was to determine the lowest optimal tissue plasminogen activator (tPA) dose and delivery duration using ultrasound-facilitated catheter-directed thrombolysis (USCDT) for the treatment of acute intermediate-risk (submassive) pulmonary embolism.

23

The study sought to examine the effect of coronary artery disease (CAD) on mortality in patients undergoing transcatheter aortic valve replacement (TAVR).

Concepts: Coronary artery disease, Heart, Cardiovascular system

23

The aim of this study was to examine the frequency, timing, and association of access-site and non-access-site bleeding with mortality in the setting of transcatheter aortic valve replacement (TAVR) during long-term follow-up.