…those used in echocardiography. The 17 segment model of the left ventricle serves as a standardized framework for identifying and localizing areas of ischemia or…

…the level of the origin of the anterior papillary muscle. A network of Purkinje fibers sprouts out from the bundle branches and fascicles and spread…

…a reduced level of consciousness, seizures, confusion, a change in behaviour, collapse or an acute neurological deficit. Hypoglycaemia can cause hemiparesis, aphasia and radiological changes…

…that differ from those of non obese patients, and obesity complicates assessment of intravascular volume in both ambulatory and inpatient settings. Clinical presentation and symptoms…

…segment is flat and isoelectric (i.e in level with the baseline). Displacement of the ST segment is of fundamental importance, particularly in acute myocardial…

…patient to recite the months of the year backwards. A normal result does not exclude delirium, however, and an abnormal result is not specific to…

…Hypocalcemia Causes of hypocalcemia Acute pancreatitis, pancreas surgery, alkalosis (hyperventilation), rhabdomyolysis, septicemia (sepsis), osteolytic cancer metastases, abnormal calcium absorption (gastrointestinal) and resorption (from primary urine…

…of high levels of natriuretic peptides and cardiac troponin [19]. ATTR Amyloidosis: This form arises from the misfolding of transthyretin, a protein produced primarily in…

…die and the cell membranes collapse whereby cellular proteins are released into the circulation. It is possible to detect elevated levels of myocardial proteins in…

…notching of the mid QRS in at least two left facing leads [7]. These stricter parameters correlate more closely with abnormal LV mechanical function and…

…may occur in the absence of ECG changes and vice versa (i.e. ECG changes may be pronounced without any arrhythmias occurring). Plasma levels 2…

…adult Abnormal relaxation (grade 1 dysfunction) Pseudonormal (grade 2 dysfunction) Reversible restrictive filling (grade 3 dysfunction) Irreversible restrictive filling (grade 4 dysfunction) E/A ratio…

…Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Magnetic Resonance. In Journal of the American Society of Echocardiography…

…for atrial size and volume Women Men Normal range Mildly abnormal Moderately abnormal Severely abnormal Normal range Mildly abnormal Moderately abnormal Severely abnormal ATRIAL DIMENSIONS…

…for the assessment of valvular regurgitation. Part 1: aortic and pulmonary regurgitation (native valve disease). In European journal of echocardiography : the journal of the Working…

…in V5. The third vector: the ventricular free wall The vectors resulting from activation of the ventricular free walls is directed to the left and…

…or a high degree of heart block. In patients with severe mental illness (SMI) receiving antipsychotic therapy, sinus tachycardia is common, and symptoms may reflect…

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

…appendage and enter the systemic circulation which causes thromboembolic occlusions of arteries in the brain, limbs or other organs. However, the increased risk in mortality…

…The tests that reflect the synthetic function of the liver are the prothrombin time (INR) , the albumin and the bilirubin — and they become abnormal late…

…the strongest predictors of mortality in patients with cardiovascular disease after accounting for age. Chronotropic response, blood pressure behaviour and the development of arrhythmias provide…

…LV aneurysm formation, and reduced LV systolic function. The principal mechanisms are the combination of an abnormal thrombogenic endocardial surface and blood stasis. During the…

…may also present in individuals without identifiable cardiac disease. Contributing factors include pulmonary disorders, particularly obstructive pulmonary disease, the use of theophylline, and elevated catecholamine…

…complexes vary from one beat to another (in the same lead). This is due to the swinging back and forth of the heart in the…

…gradually from V1 to V5 and then diminishes again in V6. Refer to Figure 1 . Abnormal R wave progression implies that the gradual increase from…

…as an abnormal and wide QRS complex occurring earlier than expected in the cardiac cycle. It is caused by an impulse discharged from an ectopic…

…The regurgitation results in blood flowing back from the pulmonary artery into the right ventricle during diastole. The most common cause of abnormal pulmonary regurgitation…

…GY. Evaluation of risk stratification schemes for ischaemic stroke and bleeding in 182 678 patients with atrial fibrillation: the Swedish Atrial Fibrillation cohort study. Eur…

…chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. In European heart journal…

…Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Magnetic Resonance. In Journal of the American Society of Echocardiography…

…QRS complex; (3) the P wave is positive in lead II and (4) the PR interval is constant. Causes of bradycardia : sinus bradycardia, sinoatrial block…

…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…

…and thromboembolism may affect organs other than the brain. Patients with AF in the setting of ACS have more comorbidities and a higher risk of…

…In apparently healthy individuals, SCORE2 and SCORE2 OP estimates can be used to classify 10 year risk as follows: Risk category 10 year risk of…

…of a coronary artery from the pulmonary artery can result in reduced coronary oxygen content, coronary steal, and myocardial ischaemia. Coronary fistulae create an abnormal…

…of LVEF, and echocardiographic measurement is subject to meaningful variability. HFmrEF may therefore represent several clinically distinct trajectories: A patient whose LVEF has improved from…

…burden of cardiovascular and non cardiovascular comorbidity than patients with reduced EF. Pathophysiology Abnormal ventricular relaxation and increased filling pressures The central hemodynamic abnormality in…

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

…6. Which of the following ECG findings is generally considered a normal variant in asymptomatic athletes and typically does not require further evaluation, assuming no…

…strongest established predictors of ischaemic stroke and systemic embolism are previous stroke or TIA and mitral stenosis. In patients with AF and previous ischaemic stroke…

…result, pupils often dilate widely within 30–120 seconds of cardiac arrest and light reactivity is lost when cerebral blood flow ceases. In other words…

…and rapid heart rate, whereas tachycardia is defined as the subjective perception of a rapid heart rate. These terms are often used interchangeably both in…

…Thus, in this chapter, you will learn the physiological basis of all ECG waves and how to determine whether the ECG is normal or abnormal…

Arrhythmias and arrhythmology ECG Mechanisms of cardiac arrhythmias: from automaticity to re entry This section introduces the most common arrhythmias encountered in clinical practice, beginning…

…prolonged and abnormal QRS complex on the ECG. The hallmark of right bundle branch block is QRS duration ≥0,12 seconds, large R' wave in…

…discover SB in healthy young individuals who are not well trained. This is also a normal finding. Abnormal (pathological) causes of sinus bradycardia In all…

…T wave in adults. III and aVL may occasionally display an isolated (single) T wave inversion. The term isolated implies that none of the neighboring…

…Causes of ventricular rhythm and idioventricular rhythm The usual mechanisms are responsible for all ventricular rhythms. Increased automaticity (in His Purkinje fibers), abnormal automaticity (in…

…particularly in the elderly An abnormal 24 hour rhythm should prompt investigation for sleep apnoea, renal disease and secondary hypertension, and lead to one dose…

…Normal Abnormal Abnormal A compensated simple disorder, or two opposing primary disorders It is therefore not enough to ask which of the pCO₂ and the…

…Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Magnetic Resonance. In Journal of the American Society of Echocardiography…

…renal function in the presence of persistent congestion is particularly associated with elevated central venous pressure, which is transmitted to the renal veins and can…

…a documented rise and/or fall of cTn values. However, myocardial injury alone is an entity in itself and may arise from non ischaemic cardiac…

…of a stenosis of 50% or more in any potential infarct related artery. MINOCA is not a definitive disease diagnosis. It is a descriptive and…

…myocardial infarction in which death occurs before biomarkers can be obtained or become abnormal, in the presence of symptoms suggestive of ischaemia and presumed new…

…L/min from rest to exercise. This response is age dependent and may rarely occur in healthy people older than 60 years. The abnormal slope…

…2 and type 3 MI. A diagnosis of MI should not be made solely from an abnormal cTn concentration in the absence of evidence of…

…abnormal. A common cause of abnormally large T waves is hyperkalemia, which results in high, pointed and asymmetric T waves. These must be differentiated from…

…though abnormal cardiac troponin (cTn) values in the setting of acute or chronic heart failure are often better categorised as myocardial injury. Clinical Presentation and…

…understanding of the underlying pathophysiology, which is classically framed by Virchow’s triad: blood stasis, endothelial dysfunction, and hypercoagulability [1] [2] . Mechanical stasis in AF…