26 research outputs found
Kounis syndrome: an additional etiologic factor of myocardial infarction with non-obstructive coronary arteries
Acute left main coronary artery thrombosis due to cocaine use
It is common knowledge that cocaine has been linked to the development of various acute and chronic cardiovascular complications including acute coronary syndromes. We present a young, male patient, drug abuser who underwent CABG due to anterolateral myocardial infarction. Our presentation is one of the very rare cases reported in literature regarding acute thrombosis of left main coronary artery related to cocaine use, in a patient with normal coronary arteries, successfully operated. Drug-abusers seem to have increased mortality and morbidity after surgery and high possibility for stent thrombosis after percoutaneous coronary interventions, because of their usually terrible medical compliance and coexistent several problems of general health. There are no specific guidelines about treatment of thrombus formation in coronary arteries, as a consequence of cocaine use. So, any decision making concerning the final treatment of these patient is a unique and individualized approach. We strongly recommend that all these patients should be treated surgically, especially patients with thrombus into the left main artery
A successfully thrombolysed acute inferior myocardial infarction due to type A aortic dissection with lethal consequences: the importance of early cardiac echocardiography
Thrombolysis, a standard therapy for ST elevation myocardial infarction (STEMI) in non-PCI-capable hospitals, may be catastrophic for patients with aortic dissection leading to further expansion, rupture and uncontrolled bleeding. Stanford type A aortic dissection, rarely may mimic myocardial infarction. We report a case of a patient with an inferior STEMI thrombolysed with tenecteplase and followed by clinical and electrocardiographic evidence of successful reperfusion, which was found later to be a lethal acute aortic dissection. Prognostic implications of early diagnosis applying transthoracic echocardiography (TTE) are described
Combined etiology of anaphylactic cardiogenic shock: Amiodarone, epinephrine, cardioverter defibrillator, left ventricular assist devices and the Kounis syndrome
Anaphylactic shock is a life-threatening condition which needs detailed and mediculous clinical assessment and thoughtful treatment. Several causes can join forces in order to degranulate mast cells. Amiodarone which is an iodine-containing highly lipophilic benzofuran can induce allergic reactions and anaphylactic shock in sensitized patients. Epinephrine is a life saving drug, but in sulfite allergic patients it should be given with caution due its metabisulfite preservative. Metals covering cardiac defibrillators and pacemakers can act as antigens attached to serum proteins and induce allergic reactions. In anaphylactic shock, myocardial involvement due to vasospasm-induced coronary blood flow reduction manifesting as Kounis syndrome should be always considered. Clinically, combined treatment targeting the primary cause of anaphylaxis together with protection of cardiac tissue seems to be of paramount importance
Where Are the Secrets of Increased Thrombosis and Aneurysm Formation With the Current Bioresorbable Vascular Scaffolds Hidden?
Spectrum oscillations from features in the potential of single-field inflation
We study single-field inflationary models with steep steplike features
in the potential that lead to the temporary violation of the slow-roll
conditions during the evolution of the inflaton. These features enhance
the power spectrum of the curvature perturbations by several orders of
magnitude at certain scales and also produce prominent oscillatory
patterns. We study analytically and numerically the inflationary
dynamics. We describe quantitatively the size of the enhancement, as
well as the profile of the oscillations, which are shaped by the number
and position of the features in the potential. The induced tensor power
spectrum inherits the distinctive oscillatory profile of the curvature
spectrum and is potentially detectable by nearfuture space
interferometers. The enhancement of the power spectrum by steplike
features, though significant, may be insufficient to trigger the
production of a sizable number of primordial black holes if radiation
dominates the energy density of the early Universe. However, it can
result in sufficient black hole production if the Universe is dominated
by nonrelativistic matter. For the latter scenario, we find that
deviations from the standard monochromatic profile of the mass spectrum
of primordial black holes are possible because of the multiple-peak
structure of the curvature power spectrum
Anaphylaxis during cardiac surgery for hypertrophic cardiomyopathy: patholophysiologic and therapeutic considerations
Anticoagulation for atrial fibrillation in heart failure patients: Balancing between Scylla and Charybdis
The management of heart failure (HF) and atrial fibrillation (AF) in real-world practice remains a debating issue, while the number of HF patients with AF increase dramatically. While it is unclear if rhythm or rate control therapy is more beneficial and under which circumstances, anticoagulation therapy is the cornerstone of the AF-HF patients' approach. Vitamin-K antagonists were the gold-standard during the past, but currently their usage is limited in specific conditions. Non-vitamin K oral anticoagulants (NOACs) have gained ground during the last ten years and considered as gold-standard of a wide spectrum of HF phenotypes. The current manuscript aims to review the current literature regarding the indications and the optimal choice and usage of NOACs in HF patients with AF. © 2021 JGC All rights reserved; www.jgc301.co