…Coronary arterial thrombi are predominantly platelet rich because they form under high shear conditions. Disruption of an atherosclerotic plaque or injury associated with PCI exposes…

Cardiology Myocardial ischemia and infarction Definition and pathophysiology Atherosclerosis is a chronic, inflammatory disease of the arterial wall in which lipid accumulation, vascular cell dysfunction…

…been identified as important risk factors. Severe atherosclerosis of the axillary or subclavian arteries may increase the risk of embolization. Risk assessment should be individualized…

Cardiology Coronary Atherosclerosis Coronary atherosclerosis is a chronic, progressive, and highly complex lipid driven inflammatory disease of the arterial intima that serves as the fundamental…

…major modifiable driver of atherosclerosis and cardiovascular disease. Its relationship with cardiovascular risk is nonlinear: even light smoking carries a substantial proportion of the excess…

…other atherosclerotic disease; diabetes and other cardiovascular risk factors; smoking, hypertension, hypercholesterolaemia, and sedentary behaviour; family history, particularly in the broader assessment of peripheral arterial…

…artery disease (CHD) are synonyms. These terms refer to symptomatic coronary atherosclerosis. Traditional classification of coronary artery disease Traditionally, coronary artery disease has been classified…

…artery disease (CHD) are synonyms. These terms refer to symptomatic coronary atherosclerosis. Traditional classification of coronary artery disease Traditionally, coronary artery disease has been classified…

…sites. Its cardiovascular effects therefore appear to reflect modulation of vascular inflammation rather than lipid lowering. Other anti inflammatory strategies have produced less favourable results…

…atherosclerotic arteries. This engenders the typical ECG changes as well. In acute coronary syndromes, however, symptoms and ECG changes are manifest at rest because of…

…sedentary behaviour and loss of independence. Identification of PAD also provides an opportunity to recognise atherosclerosis in other arterial territories and to initiate secondary prevention…

…in atherosclerotic cardiovascular disease (ASCVD). Atherosclerosis develops through the progressive deposition and retention of LDL C and other apoB containing lipoproteins within the arterial wall…

…coronary arteries. It frequently coexists with left main coronary artery disease, diabetes mellitus, left ventricular dysfunction, peripheral vascular disease and other manifestations of diffuse atherosclerosis…

Myocardial ischemia and infarction Definition and Pathophysiology Left main coronary artery disease (LMCAD) refers to atherosclerotic narrowing of the left main coronary artery, which supplies…

…50 years for researchers to finally conclude that high cholesterol levels caused coronary artery disease and atherosclerosis in general. This required thousands of observational studies…

…include fixed coronary atherosclerosis without plaque rupture, coronary artery spasm, coronary microvascular dysfunction (encompassing endothelial dysfunction, smooth muscle cell dysfunction, and dysregulation of sympathetic innervation…

…obstruction of epicardial coronary arteries. Endothelial dysfunction, coronary microvascular disease and vasospasm may coexist with atherosclerosis or may be the dominant cause of ischaemia. Other…

…assessment of cardiac inflammation, infective endocarditis, and cardiac amyloidosis using appropriate radiopharmaceuticals. Functional perfusion imaging primarily identifies haemodynamically important disease. Non obstructive coronary atherosclerosis not…

…all cause mortality. The excess risk is mediated by the combined effects of hyperglycaemia, hypertension, dyslipidaemia, obesity, smoking and other conventional risk factors, together with…

…have more atherosclerosis (both in frequency and severity) which may compensate for the inability to reach their maximal heart rate. Ultimately, the specificity of exercise…

…whereas others have brief or asymptomatic episodes that are not detected during routine clinical assessment. The clinical burden of AF does not reliably predict stroke…

Cardiology Emergency medicine Surgery & trauma Definition and Pathophysiology Aortic dissection is a major form of acute aortic syndrome (AAS), alongside intramural haematoma, penetrating atherosclerotic ulcer…

…outcomes. The vast majority of infections with COVID 19 result in mild disease, with symptoms similar to seasonal flu (influenza) and other viral respiratory infections…

…definitions of acute coronary syndromes (ACS) and acute myocardial infarction (AMI) Acute coronary syndromes occur when atherosclerotic plaques disrupt, resulting in the activation of thrombocytes…

…myocardial necrosis. It most commonly reflects atherothrombosis: disruption of an atherosclerotic plaque followed by platelet activation and coagulation, with formation of an intraluminal thrombus. The…

…atherothrombosis. It is usually precipitated by disruption of an atherosclerotic plaque through rupture or erosion. The relative contributions of plaque disease and thrombus vary considerably…

…JAMA): [...] Of every 10 such victims, the heart in 6 or 7 showed no recent disease in coronary arteries or in heart muscle. In other…

…They supersede risk models that estimate cardiovascular mortality alone because non fatal events constitute an important component of the overall burden of atherosclerotic cardiovascular disease…

…known atherosclerotic disease. An ABI ≤ 0.90 is diagnostic of peripheral arterial disease and at the same time indicates a substantially increased risk of myocardial…

…with established coronary or other atherosclerotic vascular disease. Antiplatelet therapy is a central component because platelet activation and aggregation contribute importantly to arterial thrombus formation…

…ECG changes and symptoms. Troponins and other biomarkers of myocardial necrosis (infarction) Myocardium can endure 20 to 30 minutes of complete ischemia. After this period…

…is the principal therapeutic target in lipid management because LDL and other apolipoprotein B containing lipoproteins play a causal role in atherosclerotic cardiovascular disease (ASCVD)…

…zone. Coronary Occlusion and Myocardial Injury STEMI generally results from abrupt reduction in coronary blood flow caused by thrombotic occlusion of a previously atherosclerotic artery…

…aggregation. Because aspirin affects only one pathway of platelet activation, its antiplatelet effect is relatively limited compared with agents that inhibit other platelet pathways. The…

…with atherosclerotic cardiovascular disease (ASCVD) or heterozygous familial hypercholesterolaemia. The broader therapeutic principle is that LDL C reduction is associated with cardiovascular benefit regardless of…

…characterized by persistently elevated plasma low density lipoprotein cholesterol (LDL C) from early life and a consequent excess risk of premature atherosclerotic cardiovascular disease (ASCVD)…

…proximal atherosclerotic burden should be considered and treated in the same broad category as a patient with coronary artery disease when clinically appropriate. Other coronary…

…formerly termed Prinzmetal or variant angina, is myocardial ischaemia caused by transient abnormal vasoconstriction of one or more coronary arteries. Epicardial spasm produces a reversible…

…cardiac arrest. Most of these have atherosclerotic heart disease (coronary artery disease) as the underlying cause. Other common causes are cardiomyopathy (hypertrophic or dilated), arrhythmogenic…

…often female than patients with atherosclerotic mediated myocardial infarction. A history of cigarette smoking may be present despite relatively few other conventional atherosclerotic risk factors…

…drinking in either sex. Other definitions of unhealthy drinking include at least two drinks daily in women or three in men, or at least four…

…The emergency evaluation of non traumatic chest discomfort is structured around three principal diagnostic categories: Myocardial ischaemia , particularly acute coronary syndrome (ACS). Other cardiopulmonary causes…

…remains the foundation of lipid lowering treatment for patients with chronic coronary syndrome, acute coronary syndrome (ACS), atherosclerotic peripheral arterial disease, and other very high…

…The underlying process usually involves acute thrombotic obstruction of an epicardial coronary artery. A vulnerable atherosclerotic plaque and thrombogenic blood interact to initiate and extend…

…87 95% confidence interval: 0.79–0.96 P = .004 Other summaries of the trial describe a 14% reduction in the same composite outcome…

…disease may be obstructive or non obstructive. Atherosclerotic plaque accumulation in the epicardial arteries is a major pathological substrate, but ischaemia may also result from…

…ischemia. Inverted U waves are even more typical of ischemia (but the sensitivity is low). U wave changes always accompany other ischemic ST T changes…

…Lathundar Key messages Two things set the COPD exacerbation apart from many other causes of acute dyspnoea: oxygen must be titrated cautiously and the blood…

Info Table 1 provides a summary of the indications, contraindications, dosage, administration, warnings, precautions, and other relevant information for the drug Ticagrelor . Table 1 Summary…

…Familial and genetic screening in cardiovascular medicine is the systematic assessment of relatives and other individuals who may carry an inherited predisposition to cardiovascular disease…

…begins in parallel with the diagnostic work up. Obtain an interpretable 12 lead ECG within 10 minutes of first medical contact, attach continuous rhythm monitoring…

…history, a positive Dix–Hallpike test and the absence of other neurological findings. The treatment is a repositioning manoeuvre. Indications Brief attacks of vertigo, seconds…

…acetylsalicylic acid at the first sign of skin rash, mucosal lesions, or hypersensitivity. Interactions Pharmacodynamic interactions Anticoagulants, thrombolytics, or other platelet aggregation inhibitors: Salicylates inhibit…

…from selected populations, frequently with low or intermediate ischemic risk and under representation of patients with STEMI or other very high risk features. Noninferiority studies…

…or other vascular beds. Malignant hypertension represents an extreme form in which acute microvascular injury occurs, classically involving fibrinoid necrosis of small arteries in the…

…beats per minute. Note that with a paper speed of 25 mm/s, which is standard in the US and many other countries, a 2…

…cancel each other out. However, the ECG may show features characteristic of biventricular hypertrophy. Biventricular hypertrophy ECG In case the ECG or other examinations suggest…

…80% of men display ST segment elevations that are not caused by ischemia and a significant proportion have ST T changes caused by other pathological…

…1). This is possible by using two different sets of piezoelectric crystals; one set for sending ultrasound and the other for analyzing reflected sound waves…

…tomographic images of the left ventricle. In PET (Positron Emission Tomography), radiotracers emit positrons. When a positron collides with an electron, they annihilate each other…