…others have features overlapping with HFpEF, including abnormalities of LV relaxation and filling. Hypertension and diabetes can contribute to the development of heart failure in…

…Proposed explanations in the source material include cardiac memory after abnormal ventricular activation, transient rate related conduction abnormalities, pacing related repolarization changes, and inadequate coronary…

…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…

…on the other hand, the ST segment depressions are secondary findings and the primary findings are the ST segment elevations. As explained in the previous…

…these abnormalities in the presence of abnormal clinical risk assessment. Low risk PE is characterized by clinical low risk features, negative cardiac biomarkers, and no…

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

…defects and differentiate between normal and abnormal patterns. Reverse redistribution (RR) Reverse redistribution (RR) in SPECT myocardial perfusion imaging is an unusual phenomenon in which…

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

…the sinoatrial node) is a common finding in athletes and during sleep; in these scenarios, it should not be considered abnormal. On the other hand…

…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…

…P waves should precede every QRS complex and the P wave should be positive in lead II. Common findings Sinus rhythm (which is the normal…

…reader firm knowledge of normal findings , normal variants (i.e less common variants of what is considered normal) and pathological variants . Thus, in this chapter…

…HF), atrial fibrillation and cardiovascular events. In clinical practice, obesity is conventionally defined by a body mass index (BMI) of ≥30 kg/m2. Severe obesity…

…P waves should precede every QRS complex and the P wave should be positive in lead II. Common findings Sinus rhythm (which is the normal…

…This response is age dependent and may rarely occur in healthy people older than 60 years. The abnormal slope does not itself distinguish precapillary from…

…The physiological advantages of this configuration have been discussed in Chapter 1. Some individuals, however, possess an additional pathway between the atria and the ventricles…

…1 ). If the T wave and the QRS complex head in opposite directions, the T wave is said to be discordant which is abnormal. Because…

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

…the automaticity in the sinoatrial node (which lowers heart rate) and also slows conduction over the atrioventricular (AV) node. The most classical ECG finding is…

…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…

…regurgitation Jet size < 5cm² 5 10 cm² 10 cm² size vena cava inferior < 2,1 cm and compressible in between 2,1 cm…

…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 evaluation of the severity of native valvular regurgitation with two dimensional and Doppler echocardiography. In Journal of the American Society of Echocardiography : official publication…

…of the action potential occur from one contractile cell to another, starting in the endocardium and heading towards the epicardium. As evident from Figure 7 …

…In patients with severe mental illness (SMI) receiving antipsychotic therapy, sinus tachycardia is common, and symptoms may reflect underlying arrhythmia or sudden cardiac death (SCD…

…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…

…Atrial fibrillation in other circumstances (particularly those listed above) is usually a progressive disease. Complications of atrial fibrillation and available treatments In multivariable models (i…

…the liver are the prothrombin time (INR) , the albumin and the bilirubin — and they become abnormal late. A cirrhotic liver can have entirely normal transaminases…

…for appropriately selected patients. Pathophysiological basis Exercise progressively increases myocardial oxygen demand through increases in heart rate, myocardial contractility and blood pressure. When coronary blood…

…Ventricular tachyarrhythmia. Features suggesting systemic embolization. In patients with recurrent chest pain and hemodynamic compromise after MI, mechanical complications should be considered. Transthoracic echocardiography (TTE…

…sufficient in patients whose atrial tachycardia is induced by the drug. Management of all other cases aligns with the approach used for atrial fibrillation and…

…of an abnormal amount of fluid in the pericardial space. It can be caused by numerous local and systemic disorders. Accumulation of fluid in the…

…cause abnormal ventricular activation (i.e. contraction). The significance of this will depend on the severity of the conduction defect and the affected ventricle. In…

…sensitivity is low). U wave changes always accompany other ischemic ST T changes. They may occur in both NSTEMI and STEMI. QTc prolongation The QT…

…interchangeably in this discussion. A premature ventricular complex is recognized on the ECG as an abnormal and wide QRS complex occurring earlier than expected in…

…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…

…the American Society of Echocardiography's Guidelines and Standards Committee and the Chamber Quantification Writing Group, developed in conjunction with the European Association of Echocardiography…

…for evaluation of the severity of native valvular regurgitation with two dimensional and Doppler echocardiography. In Journal of the American Society of Echocardiography : official publication…

…Moderate or severe chronic kidney disease (CKD) Hypertension mediated organ damage (HMOD) Probable or definite familial hypercholesterolaemia Other markedly abnormal single risk factors or genetic…

…reflects differences in ascertainment and imaging technique. Coronary fistulae represent abnormal communications between a coronary artery and a cardiac chamber or vessel. Other congenital anomalies…

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

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

…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…

…one in five strokes. Thrombus formation is most commonly related to the left atrial appendage, although competing mechanisms such as large artery atherosclerosis and small…

…bundle of His, and hence it originates in the atria. In other words: tachycardias with narrow QRS complexes originate in the atria. the term supraventricular…

…owing to changes in intra and extracellular electrolyte concentrations. Some electrolyte imbalances are clinically negligible (from an electrophysiological standpoint), whereas others may be life threatening…

…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…

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

…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…

…however, and an abnormal result is not specific to delirium. Symptoms are often worse in the evening and at night, but diurnal variation is not…

…physical activity and any other precipitating factor. Thresholds The thresholds below are used above all in diabetes. The severity of the symptoms and the patient…

…regurgitation Jet size < 5cm² 5 10 cm² 10 cm² size vena cava inferior < 2,1 cm and compressible in between 2,1 cm…

…chain (AL) amyloidosis and transthyretin (ATTR) amyloidosis [8, 15]. AL Amyloidosis: This is a plasma cell dyscrasia in which abnormal plasma cells produce misfolded immunoglobulin…

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

…Describes cardiac death in patients with symptoms suggestive of myocardial ischaemia and presumed new ischaemic ECG changes, occurring before cTn values become available or abnormal…

…presenting with myocardial infarction in other reports. It is more frequent in women and in patients presenting with NSTEMI than in those presenting with STEMI…

…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…

…changes into primary and secondary. Primary and secondary ST T changes Primary ST T changes are caused by abnormal repolarization . This is seen in ischemia…

…abnormally large T waves is hyperkalemia, which results in high, pointed and asymmetric T waves. These must be differentiated from hyperacute T waves seen in…