…of extracellular volume expansion include elevated cardiac filling pressures, pulmonary congestion, systemic venous hypertension, and peripheral interstitial edema. These abnormalities produce breathlessness, orthopnea, weight gain…

…motion abnormalities in a patient with chest pain strongly suggests myocardial ischemia as the underlying cause of the symptoms. The degree and extent of wall…

…interpretation in adults. The ECG must always be interpreted using a systematic approach in order to minimize the probability of missing significant abnormalities. The following…

…angiography, and, occasionally, pathological examination. Pathologically, infarction represents myocardial cell death caused by prolonged ischaemia. The first cellular abnormalities of ischaemia include depletion of glycogen…

…specific segments of the left ventricle that demonstrate abnormalities. These tools compare perfusion data to population based reference databases, often adjusted for sex and age…

…of myocardial necrosis, or severe ischaemia on stress testing. Such developments may convert an initially selective or delayed approach into an indication for angiography and…

…25% Normal FS, 2D measurement 18% Advantages of fractional shortening If ventricular geometry is normal and there are no regional wall motion abnormalities, then fractional…

…syndrome is therefore both a clinical risk factor cluster and a marker of broader metabolic dysfunction. Associated abnormalities may include increased apoB and apoC III…

…atrial fibrillation, and other arrhythmias or conduction abnormalities. CKD also worsens the prognosis of established CVD. Mechanisms linking CKD to cardiovascular disease The association is…

…sequence of events during myocardial ischemia, beginning with perfusion abnormalities and ultimately leading to chest pain (angina). Myocardial perfusion imaging techniques, such as SPECT and…

…reduces the risk of missing abnormalities. The eight steps below go through the rhythm and then the waveforms one by one, and conclude with comparison…

Cardiology Genetic and miscellaneous conditions Definition and classification Coronary anomalies are congenital abnormalities involving the origin, course, distribution, or termination of the coronary arteries. They…

…is increasingly recognized as a significant cause of maternal morbidity and mortality during the postpartum period. Maternal and obstetric complications Immediate maternal complications include placental…

…or functional abnormalities of the coronary arteries or coronary microcirculation. These abnormalities can produce a transient and reversible mismatch between myocardial oxygen demand and blood…

…the clinical manifestations of chronic structural and/or functional disease involving the epicardial coronary arteries and/or the coronary microcirculation. These abnormalities may produce a…

…widened QRS complex and secondary ST T wave abnormalities [7]. Diagnostic Criteria The diagnostic requirements for LBBB vary by the stringency of the criteria applied…

…indirectly as reciprocal abnormalities in the anterior precordial leads. Acute myocardial ischaemia alters the resting membrane potential and action potential duration of affected myocardial cells…

…patients require a mechanism based assessment rather than reassurance based solely on the absence of obstructive CAD. Evaluation and Physical Examination Clinical assessment The asses

…at increased risk and reducing exposure to established, modifiable determinants of cardiovascular disease. The principal targets include blood pressure, lipid abnormalities, diabetes and glycaemic status…

…abnormalities and/or elevated natriuretic peptides (NPs) [1] [2] . The evolution of HF terminology has been driven by a deeper understanding of myocardial mechanics and…

…cardiovascular medicine. As a primary driver of sudden cardiac death (SCD) and a major cause of morbidity in patients with structural heart disease, VT necessitates…

…of these abnormalities in the presence of abnormal clinical risk assessment. Low risk PE is characterized by clinical low risk features, negative cardiac biomarkers, and…

…of missing important abnormalities and also speeds up the ECG interpretation. Press the Download button to download the pocket guide. Download Become a member and…

…great paper written by a dozen of merited scholars. In this paper the authors discuss normal variants and abnormalities which athletes may exhibit on the…

…abnormalities such as hypokalemia, the co administration of multiple QT prolonging medications, and drug accumulation secondary to renal or hepatic impairment or the inhibition of…

…on the magnitude of the stressor, the presence of non cardiac comorbidities, and the extent of underlying coronary artery disease (CAD) and structural cardiac abnormalities…

…abnormal vasoconstriction of one or more coronary arteries. Epicardial spasm produces a reversible functional occlusion and usually causes transmural ischaemia. The resulting abnormalities in left…

…Electrocardiogram and Cardiac Monitoring An ECG should be performed if there is suspicion of syncope due to an arrhythmia or underlying cardiac disease. Relevant abnormalities…

…LVEF greater than 40%—comprising HFmrEF and HFpEF—accounts for approximately half of patients with symptomatic heart failure. These patients experience substantial morbidity and mortality…

…HFmrEF) is defined by symptoms and/or signs of HF with LVEF 41–49%. In this group, structural abnormalities such as left atrial enlargement or…

…bridging; myocardial metabolic abnormalities; and abnormal pain perception in patients without demonstrable ischaemia. The absence of obstructive disease therefore does not establish a benign diagnosis…

…agents known to alter the electrical properties of the heart (inducing QRS or QT prolongation) or causing electrolyte abnormalities, such as thiazide and loop diuretics…

…abnormalities make LDL C an incomplete representation of atherogenic burden. Clinical Presentation and Symptoms ApoB elevation and increased non HDL C are laboratory abnormalities and…

…the first time, or newly developed during management of an acute illness. The clinical relationship between AF and acute deterioration is often bidirectional. AF with…

…between treatment benefit and harm. Prevention in the very elderly therefore extends beyond reducing myocardial infarction, stroke, heart failure, or cardiovascular death. Preservation of mobility…

…early disease or after effective treatment. HFrEF is commonly associated with structural and functional ventricular abnormalities and progressive neurohormonal activation. The therapeutic rationale for disease…

…autosomal dominant mechanisms. Complex or multifactorial genetic architecture. The inheritance pattern affects the appropriate scope and duration of family surveillance. For example, heterozygous carriers in…

…Coarctation of the aorta and renovascular disease are important non endocrine causes, particularly in patients with resistant hypertension. Dietary sodium and potassium abnormalities and commonly…

…prompt consideration of systemic arteriopathy rather than being regarded solely as an isolated coronary event. SCAD predominantly affects the left sided coronary circulation and may…

…The pre test likelihood of obstructive CAD is moderate or high, generally greater than 15% and less than 85% Baseline ECG abnormalities make exercise ECG…

…markers for structural and hemodynamic cardiac abnormalities. Right Axis Deviation (RAD) RAD holds significant diagnostic weight in the evaluation of pulmonary vascular and right heart…

…the broader spectrum of acute coronary syndromes, which may present with recent changes in symptoms or signs, with or without ECG abnormalities and with or…

…important abnormalities and also speeds up the interpretation. Note that this chapter is preceded by a comprehensive discussion in the chapter Characteristics and Definitions of…

…This results in flow heterogeneity and perfusion defects in areas supplied by the disease artery. Thus, vasodilators replicate the effects of exercise on coronary arteries…

…T wave abnormalities are common and occur in a wide range of conditions. Unfortunately, many clinicians tend to misinterpret the T wave and some find…

…and optical coherence tomography (OCT) can reveal lesions that are not apparent on conventional angiography. Coronary vasomotor disorders may involve epicardial spasm or abnormalities of…

…in the context of the clinical presentation and other findings. A reduced CFR may occur with angiographically insignificant epicardial disease because of abnormalities in the…

…Abnormalities in the QT interval can cause serious arrhythmias and sudden cardiac death. QT prolongation can precipitate torsades de pointes, a specific form of polymorphic…

…myocardial abnormalities may be subclinical. Progressive dilation can subsequently impair left ventricular ejection fraction. Enlargement of the left ventricle predisposes to atrial and ventricular arrhythmias…

…In patients with HFpEF, acute hypertension is a frequent trigger of decompensation and may produce abrupt pulmonary oedema, sometimes requiring non invasive ventilation or intubation…

…The occurrence of neoatherosclerosis helps explain why ISR and other stent related events may arise well after the initial intervention. Mechanical mechanisms Mechanical abnormalities may…

…and whether infarction has occurred The extent and degree of myocardial involvement The anatomical territory, including anterior, inferoposterolateral or right ventricular involvement Pre existing abnormalities…

…is mediated by the combined effects of hyperglycaemia, hypertension, dyslipidaemia, obesity, smoking and other conventional risk factors, together with diabetes specific vascular and metabolic abnormalities…

…and athletes (hypertrophic cardiomyopathy is the most common cause). Genetic mutations in ARVC At least 13 genes have been implicated in ARVC. The majority of…

…is considered a poor measure of systolic function; it is only reliable if the left ventricle has normal geometry and no significant wall motion abnormalities…

…and thus be confused with previous myocardial infarction). ECG examples of pre excitation (short PR interval, prolonged QRS duration, delta waves, secondary ST T abnormalities…

…American and European guidelines assert that the ST segment must be either downsloping or horizontal. Otherwise, ischemia is unlikely to be the cause of the…

…possibilities to diagnose abnormalities. Importantly, the vast majority of recommended ECG criteria (e.g. criteria for acute myocardial infarction) have been derived and validated using…

…Atrial fibrillation and ventricular arrhythmias were observed in the fifth decade of life in several family members. Imaging studies did not reveal structural cardiac abnormalities…

…injury leads to release of cardiac troponin, but troponin elevation is not specific for myocardial infarction. Other conditions may produce cardiomyocyte injury and elevated troponin…