…intervention with treatment of risk factors when indicated. Risk estimation is particularly important when deciding which individuals are most likely to benefit from preventive drug…

…5 serious etiologies Family history (focus on ischemic heart disease, aortic dissection, pulmonary embolism, pneumothorax). Hypertension. Smoking. Dyslipidemia (hyperlipidemia). Obesity and/or diabetes. Psychosocial stress…

…main stenosis Known — perform the test only on a clear indication and with full preparedness Moderate to severe aortic stenosis without symptoms Individual assessment Hypertrophic…

…blood supply. Stress increases myocardial oxygen requirements, principally through increased heart rate and contractility. In the presence of a flow limiting coronary stenosis, supply cannot…

…than an absolute rule. Evaluation of the exercise stress test: Parameters to assess Evaluation of the exercise stress test is based on several parameters wh

…does lead to tachypnea (increased respiratory rate), which should, however, be distinguished from dyspnea which is shortness of breath. Dyspnea may be due to poor…

…to reach their maximal heart rate. Ultimately, the specificity of exercise stress testing is lower in the elderly, as compared to younger individuals. Sensitivity, on…

…the term treadmill test should only be used when referring to exercise stress tests carried out on a treadmill. In many parts of the world…

…as a measure of left ventricular function is that it ignores the ability of the ventricle to generate pressure. This is evident from Figure 1…

…corticosteroid abruptly after longer term treatment. Not giving a stress dose to a patient with adrenal insufficiency during acute illness. Confusing dexamethasone 0.75 mg…

…acute condition. Much research has been devoted to it in recent years. Most cases (70%) of takotsubo cardiomyopathy occur in situations with extreme stress, such…

…Exercise stress test Definition and clinical role Exercise electrocardiographic testing is a standardized assessment in which a patient performs progressively increasing external work, usually on…

…increases due to the fact that systolic blood pressure increases during exercise. The increase in cardiac output during moderate exercise is the result of increased…

…thereby simulating the effects of exercise. However, dobutamine is rarely used in current practice due to its less favorable safety profile and the preference for…

…of hypoglycaemia 8–12 mmol/L The critically ill patient in intensive care According to the local protocol Avoid tight targets in inpatients. Hypoglycaemia on…

…reviewed to identify potential artifacts, extracardiac tracer activity, and assess image quality and patient motion. Alignment : Ensure proper alignment of rest and stress images to…

…inflammation and oxidative stress. Metabolic dysfunction associated fatty liver disease affects approximately 10% of non obese individuals and up to 65% of patients with metabolic…

…Pathophysiological Basis Stress MPI is based on the principle that flow limiting coronary disease limits the ability of a myocardial territory to augment blood flow…

…women or five for men on one occasion. Pharmacokinetics and pathophysiology Approximately 95% of ingested ethanol undergoes hepatic metabolism. Alcohol dehydrogenase converts ethanol to acetaldehyde…

…infarction Use of ECG in acute coronary syndromes & chest pain patients An ECG must be performed on all patients seeking medical attention due to chest…

…Normal coronary blood flow at rest: 0.6 to 1.3 mL/min/g of myocardial tissue During hyperemia (maximum stress): Approximately 3.58 ± 1…

…accepted that achieving 85% of the age adjusted maximum heart rate (MHR) is sufficient to provoke overt ischemic signs during stress testing (Bourque et al…

…Mechanically, wall stress (the load on individual muscle fibers) increases while the contractile function worsens. Chronic aortic regurgitation also leads to increasing LVEDP and LAP…

…factors, including exertion, emotional stress, meals, or exposure to cold. Relieving factors, including rest or medication. Time of day and temporal pattern. Change in frequency…

…diagnosis depends on functional assessment. Coronary microvascular dysfunction (CMD) is characterized invasively by reduced CFR and increased microvascular resistance, measured by the index of microcirculatory…

…main disease. Clinical presentation and symptoms The clinical presentation of multivessel CAD varies from stable angina or exertional limitation to acute coronary syndrome (ACS), ventricular…

…severity of symptoms should be described by their effect on walking distance, daily activities, work and independence. Exercise testing can quantify both the time to…

…with plasma uric acid reduction of approximately 10% to 15% Possible effects on erythropoietin activity and erythropoiesis SGLT2 inhibition may also activate adenosine 5′ monophosphate…

…myocardial injury. Clinical Presentation and Symptoms In up to one half of STEMI cases, a precipitating factor such as vigorous physical exercise, emotional stress, or…

…are due to sinus bradycardia, though transient atrioventricular (AV) block can also occur. The physiologic response to orthostatic stress is incompletely understood, but redistribution of…

…occlusion of the coronary artery. Ischemia will extend from the endocardium to the epicardium in the affected myocardial region, which results in ST elevations on…

…The automaticity (rate of spontaneous depolarization) in the sinoatrial node is increased during physical activity, stress, and nervousness. This is due to altered tone in…

…occlusion of the coronary artery. Ischemia will extend from the endocardium to the epicardium in the affected myocardial region, which results in ST elevations on…

…far away from physicians' and nurses' stations in order to not disturb the patients' rest. It was believed that the mere presence of physicians and…

…severe hypertension (caution if patient on nonselective beta blockers). Dobutamine Cardiogenic shock Bradycardia (second line therapy) Stress testing (due to induced increase in myocardial O…

…waveforms to reliable cause of death data. The current study This paper supplies that ingredient. The authors trained a convolutional deep learning model on population…

…that mimics angina pectoris [5]. This pain is thought to result from right ventricular ischemia that develops during physical exertion [5]. Associated Findings: Exertional dyspnea…

…requiring the most rapid BP response. The objective is to reduce aortic wall shear stress and rapidly lower systolic pressure. Renal and microvascular complications Renal…

…typical exertional angina. A precipitating factor is identifiable in up to one half of cases. Reported precipitants include vigorous physical activity, emotional stress, and an…

…descending part). Deceleration time (DT) is the time interval from the peak of the E wave to its projected baseline (Figure 2). The E wave…

…is increased resistance in the aortic valve itself, due to the reduced area of the valvular orifice. Both aortic stenosis and hypertension result in increased…

…severe hypertension (caution if patient on nonselective beta blockers). Dobutamine Cardiogenic shock Bradycardia (second line therapy) Stress testing (due to induced increase in myocardial O…

…equally compromised, leading to uniform perfusion that may appear deceptively normal on SPECT. Detecting multivessel disease requires quantification of absolute coronary blood flow. This is…

…more specific than the downsloping depression. Refer to Figure 1 . Figure 1. Characteristics of ischemic ST segment depressions on ECG. Current guideline criteria for ischemic…

…recurrent ischaemic ECG changes, biomarker evidence of myocardial necrosis, or severe ischaemia on stress testing. Such developments may convert an initially selective or delayed approach…

…Nitroprusside Figure 1. The approximate position of each drug according to its vasoconstrictor effect (vertical axis) and its positive inotropic effect (horizontal axis). Grey =…

…with a daily wake up trial shortens the time on the ventilator. See the article on confusion for the management of delirium in intensive care…

…These thresholds are also assay dependent. Follow up of known HPA suppression to determine whether replacement can be stopped. The test is not the first…

…from classic dissection in that most patients do not have aortic regurgitation, pulse deficits, or visceral ischaemia. Approximately 25% of PAUs are discovered incidentally on…

…Relationship to chronic coronary syndromes Chronic coronary syndromes (CCS) describe stable period clinical presentations arising from structural or functional abnormalities of the coronary arteries or…

…as three times higher than in individuals without comparable renal impairment. The cardiovascular burden of CKD extends beyond CAD to peripheral arterial disease, cerebrovascular disease…

…Figure 3. Prognosis in aortic stenosis according to type of stenosis. The patients with low flow (stroke volume index <35 ml/m²) and low gradient…

…ergospirometry (exercise stress testing), and cardiac catheterization. Principles of management of congenital heart disease and GUCH Complex malformations often require intervention (surgical or catheter based…

…angina pectoris is diagnosed by means of exercise stress testing (exercise ECG). The purpose of the stress test is to increase the myocardial workload (and…

…Adam Stokes attack Syncope due to sinus arrest is referred to as Adam Stokes attack . Causes of sinoatrial arrest/pause High vagal tone is benign…

…acute stressor—such as an acute gastrointestinal bleed causing a precipitous drop in haemoglobin, or a sustained tachyarrhythmia—may result in insufficient blood flow to…

…assessment of the risks; if the benefit outweighs the risk, then relative contraindications may be disregarded. Absolute contraindications for exercise ECG Aortic dissection – due to…

…NT proBNP) are circulating markers of myocardial wall stress. They are released principally by ventricular cardiomyocytes in response to increased transmural stress and ventricular stretch…

…contextual cues and attribution of pre existing symptoms to the medication. No single diagnostic test can distinguish a pharmacological SAMS effect from a nocebo response…

…extracellular matrix remodelling, and thrombosis interact to produce focal arterial lesions. Although epicardial coronary arteries are a major site of disease, atherosclerosis is systemic and…