…Freeze time per cycle Number of cycles Margin : : : : Actinic keratosis, thin 5–10 s 1 1–2 mm Actinic keratosis, hypertrophic 10–15 s 2…

…right ventricular enlargement and atrial enlargement. Below follows a discussion on the principles and differences of dilatation and hypertrophy, as well as typical ECG changes…

ECG Hypertrophy and dilatation Biventricular hypertrophy Simultaneous hypertrophy of the left and right ventricle is rather common. The ECG has low sensitivity with respect to…

…trans thoracic echocardiography. Causes of right ventricular hypertrophy Lung disease (with increased pulmonary vascular resistance), congenital heart disease (transposition of the great arteries, pulmonary valve…

…indicate that the vector of the left ventricle is amplified. Secondary ST T changes in left sided leads Left ventricular hypertrophy is often accompanied by…

…II. Heart axis deviation: right axis deviation (RAD) and left axis deviation (LAD) Causes of right axis deviation Normal in newborns. Right ventricular hypertrophy. Acute…

…QRS complex. Axis deviation: right axis deviation (RAD) and left axis deviation (LAD) Causes of right axis deviation Normal in newborns. Right ventricular hypertrophy. Acute…

…with or without left ventricular hypertrophy. Among patients with NSTE ACS undergoing angiography, approximately 10% have no critical epicardial stenosis. In some of these patients…

…aortic stenosis in the presence of a narrowing of the LVOT (left ventricular outflow tract). Such narrowings are due to septal hypertrophy or subaortic membrane …

…enlargement, the ECG cannot differentiate dilatation from hypertrophy, which is why some experts have suggested that the term atrial abnormality be used instead of enlargement…

…types of cardiomyopathy: Hypertrophic cardiomyopathy (HCM) — This type of cardiomyopathy is characterized by pronounced hypertrophy of the myocardium. It may also lead to obstruction of…

…mass is, however, an important parameter in the assessment of ventricular hypertrophy and cardiomyopathy. Numerous formulas have been developed to approximate ventricular mass. Most formulas…

Cardiology Genetic and miscellaneous conditions Clinical Red Flags Raising Suspicion of Cardiac Amyloidosis Demographic and Clinical Context Cardiac amyloidosis should be suspected in patients older…

…Causes of mitral regurgitation Degeneration, prolapse DCM (dilated cardiomyopathy) Ischemic heart disease (coronary heart disease) Rheumatic valve disease Endocarditis Congenital mitral regurgitation Amyloidosis SLE Hypertrophic…

…to ECG interpretation 1. Which of the following ECG findings is typically considered a normal variant in asymptomatic athletes with no significant family history? A:…

…which results in right ventricular hypertrophy. The valve is usually thickened and during systole leaflet doming appears. The proximal part of the pulmonary artery is…

…ventricular hypertrophy. It is the most prevalent cardiomyopathy worldwide, affecting 1 in 500 individuals in most societies. HCM is also the most common cause of…

…a greater lifetime burden of hypertension. Hypertension becomes more prevalent in women than men after approximately 65 years of age. Hypertension related left ventricular hypertrophy…

…together promote left ventricular hypertrophy and kidney injury. The syndrome is therefore both a clinical risk factor cluster and a marker of broader metabolic dysfunction…

…ventricle. Right atrial enlargement (hypertrophy) leads to stronger electrical currents and thus enhancement of the contribution of the right atrium to the P wave. The…

…reduced area of the valvular orifice. Both aortic stenosis and hypertension result in increased ventricular load, which the ventricle counteracts by developing hypertrophy. Hypertrophic cardiomyopathy…

…to adults in sinus rhythm, recorded at a paper speed of 50 mm/s with 1 mV = 10 mm. At 50 mm/s a…

…other leads apply in the absence of left ventricular hypertrophy or left bundle branch block [8, 10]. Characteristics of ST Elevation in Acute Transmural Ischemia…

…left ventricular hypertrophy or abnormal LV filling supports the diagnosis Unlike HFpEF, objective evidence of structural or functional cardiac abnormality or raised natriuretic peptides is…

…left ventricle hypertrophic? Is left ventricular ejection fraction (LVEF) normal? A normal sized ventricle with hyperdynamic contractility suggests acute aortic regurgitation. The severity of aortic…

…cardiomyopathy or hypertrophy. Prognosis of nonspecific intraventricular conduction delay Patients with nonspecific intraventricular conduction delays are at twice as great a risk of all cause…

…contraction and relaxation. Structural and vascular consequences Common structural consequences include left ventricular hypertrophy, left atrial enlargement, and abnormalities of diastolic filling. Mitral regurgitation may…

…potassium, and resistant to suppression by sodium loading. It is the most common form of secondary hypertension. Aldosterone acts principally through the mineralocorticoid receptor (MR)…

…as a formal diagnostic criterion for the condition [17]. Left Axis Deviation (LAD) LAD is a recognized diagnostic component of left ventricular hypertrophy (LVH). Specifically…

…Type 2 myocardial infarction (MI) is defined as an ischaemic myocardial injury occurring in the context of a mismatch between myocardial oxygen supply and demand…

…atrial fibrillation is age. Other significant risk factors are as follows: male sex, hypertension, left ventricular hypertrophy, left ventricular dysfunction, valve disease, coronary artery disease…

…development of increased left ventricular hypertrophy and mass. Initially, myocardial abnormalities may be subclinical. Progressive dilation can subsequently impair left ventricular ejection fraction. Enlargement of…

…may occur with angiographically insignificant epicardial disease because of abnormalities in the coronary resistance vessels. Left ventricular hypertrophy also reduces coronary flow reserve: myocardial mass…

…microvascular dysfunction (CMD) is characterized invasively by reduced CFR and increased microvascular resistance, measured by the index of microcirculatory resistance (IMR), hyperaemic microvascular resistance (HMR)…

…2 shows right ventricular hypertrophy). The following rules will distinguish the two conditions in the vast majority of cases: Right ventricular hypertrophy shifts the electrical…

…disease, cardiomyopathy, hypertrophy, LV dysfunction, or other pathology that could affect the safety or interpretation of the examination. Evaluation and Physical Examination Before stress echocardiography…

…exhibit pronounced hypertrophy, resulting in a reduction of ventricular volume and subsequently an increase in ejection fraction. Stroke volumes are generally reduced in hypertrophic cardiomyopathy…

…left ventricular hypertrophy, dilated cardiomyopathy, hypertrophic cardiomyopathy, degenerative disease, hypertension, hyperkalemia, myocarditis, and amyloidosis may all cause LAFB. Prognosis of left anterior fascicular block (LAFB…

…atrial pressure (LAP), which gradually leads to atrial hypertrophy and dilation. Atrial dilation causes a significantly increased risk of atrial fibrillation. The increase in left…

…However, the significance of the ST segment depression differs markedly in NSTE ACS and STE ACS. In NSTE ACS the ST segment depressions are the…

…for the purpose of diagnosing morphological changes (e.g. myocardial ischemia, ventricular hypertrophy), the ability to do so increases as the number of leads increases…

…overcoming the resistance in the stenosis and maintaining adequate stroke volumes. Thus, ventricular hypertrophy is a compensatory mechanism, the purpose of which is to maint

…at the top. Refer to Figure 1 . Patients with left ventricular hypertrophy may instead display normalization of secondary T wave inversions (lead V5, V6, aVL…

Procedurer The value of the exercise test lies not in ST depression alone but in the overall picture : exercise capacity, symptoms, blood pressure response, heart…

…symptoms Tachyarrhythmias with uncontrolled ventricular rates Acquired advanced or complete heart block Hypertrophic obstructive cardiomyopathy with severe resting gradient Recent stroke or transient ischemic attack…

…interspersed with surviving bundles of myocytes that form the slow conducting isthmuses critical for re entry [6] . Non ischemic dilated cardiomyopathy (NICM), hypertrophic cardiomyopathy (HCM…

…at high risk of unsightly or hypertrophic scars: the sternum, the shoulder, the jawline, the ears. Anatomically hazardous areas: the branches of the facial nerve…

…still occur after the age of 65 years. Overall penetrance in cardiomyopathy families may reach 70–90% by age 70 years. In hypertrophic cardiomyopathy (HCM)…

…does not determine the anticoagulation indication. Previous stroke or TIA. The presence of mitral stenosis, a mechanical heart valve or hypertrophic cardiomyopathy. Heart failure, hypertension…

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

…cardiomyopathy (hypertrophic or dilated), arrhythmogenic right ventricular cardiomyopathy, Brugada syndrome, early repolarization. Electrolyte disorders, acidosis, hypoxemia and ischemia all aggravate the risk of developing ventricular…

…causes immense strain on the ventricular myocardium, simultaneously as the cause of the arrhythmia already affects cellular function. This results in electrical instability which explains…

…and subject preparations. We will also discuss the relevance of withholding specific cardioactive medications during exercise testing (exercise ECG). Indications for exercise stress test Indications…

…acute myocardial injury without having an infarction. The degree of troponin elevation does not by itself establish the mechanism. Increased concentrations may result from acute…