…the articles on left ventricular enlargement, right ventricular enlargement and atrial enlargement. Below follows a discussion on the principles and differences of dilatation and hypertrophy…

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…

…LVH) and right ventricular hypertrophy (RVH). The electrical vector of the left ventricle is enhanced in LVH, which results in large R waves in left…

…LVH) and right ventricular hypertrophy (RVH). The electrical vector of the left ventricle is enhanced in LVH, which results in large R waves in left…

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

…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 …

…duration of the P wave will exceed 120 milliseconds in lead II. Biatrial abnormality/enlargement Biatrial abnormality implies that the ECG indicates both left and…

…function and heart failure. There are six main types of cardiomyopathy: Hypertrophic cardiomyopathy (HCM) — This type of cardiomyopathy is characterized by pronounced hypertrophy of the…

…is a flawed proxy for ventricular systolic function and load. The mass is, however, an important parameter in the assessment of ventricular hypertrophy and cardiomyopathy…

…older than 65 years presenting with heart failure and increased left ventricular (LV) wall thickness [3, 5]. Unexplained LV hypertrophy (LVH) or heart failure with…

…wall stress, which can be alleviated by ventricular hypertrophy and dilation: Wall stress = (Pressure LV × radius LV ) / (2 × WT LV ) LV = left ventricle;…

…sinus bradycardia (<30 beats/min or sinus pauses ≥3s) C: Increased QRS voltage (isolated QRS voltage criteria for left ventricular hypertrophy or right ventricular hypert

…setting of pulmonary valve stenosis, the pressure in the right ventricle rises, which results in right ventricular hypertrophy. The valve is usually thickened and during…

…College of Cardiology (ACC) and American Heart Association (AHA). The formula takes into account the following variables: Maximum Left Ventricular Wall Thickness (MaxLVWT) : Hypertrophy is…

…than men after approximately 65 years of age. Hypertension related left ventricular hypertrophy, concentric remodelling, reduced longitudinal strain and heart failure with preserved ejection fraction…

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

…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…

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

…speed of 50 mm/s with 1 mV = 10 mm. At 50 mm/s a small square (1 mm) corresponds to 20 ms and…

…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…

…Evidence such as increased left atrial size, left ventricular hypertrophy or abnormal LV filling supports the diagnosis Unlike HFpEF, objective evidence of structural or functional…

…the left ventricle and left atrium. Chronic aortic regurgitation leads to dilatation and hypertrophy of the left ventricle. Cardiac remodeling Ventricular dilatation and hypertrophy lead…

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

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

…it binds the MR, which translocates to the nucleus and induces expression of aldosterone responsive genes. Although the kidney is a major target—where MR…

…LAD may suggest underlying left heart disease in patients being evaluated for pulmonary hypertension [16]. Causes of Left and Right Axis Deviation Based on the…

…anaemia, and hypotension or shock. Conversely, mechanisms that increase myocardial oxygen demand include sustained tachyarrhythmia and severe hypertension, with or without left ventricular hypertrophy. In…

…left ventricular hypertrophy, left ventricular dysfunction, valve disease, coronary artery disease, cardiomyopathy, congestive heart failure, congenital heart disease, diabetes mellitus (both type 1 and type…

…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…

…presentation and other findings. A reduced CFR may occur with angiographically insignificant epicardial disease because of abnormalities in the coronary resistance vessels. Left ventricular hypertrophy…

…or left ventricular hypertrophy. Hypertension, diabetes, and elevated NT proBNP are more frequent in this pattern. Endothelial dysfunction may contribute to both microvascular and epicardial…

…ACS (STEMI) if there are symptoms suggestive of myocardial ischemia. It is also recommended that leads V7, V8 and V9 be connected to the patient…

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

…the setting of hypertrophic cardiomyopathy (HCM, HOCM). Individuals with hypertrophic cardiomyopathy may display normal, or supranormal ejection fraction , despite manifest heart failure and severe symptoms…

…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…

…gradually leads to atrial hypertrophy and dilation. Atrial dilation causes a significantly increased risk of atrial fibrillation. The increase in left atrial pressure may also…

…RBBB) and pre excitation Left ventricular hypertrophy (LVH) , right ventricular hypertrophy (RVH) , left bundle branch block (LBBB) , right bundle branch block (RBBB) and pre excitation…

…Importantly, the vast majority of recommended ECG criteria (e.g. criteria for acute myocardial infarction) have been derived and validated using the 12 lead ECG…

…the early stages of aortic stenosis, stroke volume becomes smaller. Reduced stroke volumes and increased resistance in the valve result in compensatory left ventricular hypertrophy …

…waves are tall and narrow at the top. Refer to Figure 1 . Patients with left ventricular hypertrophy may instead display normalization of secondary T wave…

…a cryoprobe for contact technique. Cotton buds for small lesions (these give a more superficial and less controllable depth of freeze). A size 15 scalpel…

…Relative: Condition Comment : : Left main stenosis Known — perform the test only on a clear indication and with full preparedness Moderate to severe aortic stenosis without…

…pericarditis Acute aortic dissection Physical disability that precludes safe and adequate testing Relative contraindications Known obstructive left main coronary artery stenosis Moderate to severe aortic…

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

…report. A shave biopsy of a pigmented lesion that turns out to be a melanoma can make the Breslow thickness unmeasurable and staging therefore impossible…

…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…

…presence of mitral stenosis, a mechanical heart valve or hypertrophic cardiomyopathy. Heart failure, hypertension, diabetes and vascular disease. Age and sex category. Renal and hepatic…

…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…

…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…

…Left untreated, ventricular fibrillation leads to asystole and cardiac arrest. All healthcare providers, regardless of profession, must be able to diagnose ventricular tachycardia. Causes of…

…to risk of embolization Relative contraindications for exercise ECG Severe hypertension (systolic blood pressure 200 mmHg or diastolic blood pressure 110 mmHg). Left main coronary…

…and release from an early cytosolic pool have all been associated with detectable troponin. High sensitivity assays may therefore identify a continuum of myocardial injury…