…may also lead to left ventricular dilation, which is referred to as ischemic cardiomyopathy (Dilated Cardiomyopathy). Ventricular dilation leads to dilation of the mitral annulus…

…lead to ventricular dilation. However, the term dilated cardiomyopathy (DCM) refers to idiopathic or genetic dilation of the left ventricle . Patients with DCM typically develop…

…is the most common sustained cardiac arrhythmia and a profound driver of global cardiovascular morbidity and mortality, primarily due to its association with ischemic stroke…

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

…because cardiac output diminishes in parallel with increasing myocardial load (and hence oxygen demand). The most common causes of acute aortic regurgitation are aortic dissection…

…Endocarditis (common in intravenous drug addicts). Myxomatous degeneration. Rheumatic heart disease. Dilatation of the right ventricle. Dilatation of the right atrium. Pulmonary hypertension. Left to…

…overlap with risk factors for DVT; immobilisation, surgery, hypercoagulability, and pregnancy are common risk factors (see Risk factors below). A significant proportion of cases with…

…confined to the left ventricle. ARVC causes ventricular tachycardia and sudden cardiac arrest; the disease is one of the most common causes of sudden cardiac…

…prolonged duration of effect, and significant individual variations in its effect. Drug Enalaprilat Brand names Vasotec IV ® Indications Hypertension and hypertensive emergency. Acute left…

…prolonged duration of effect, and significant individual variations in its effect. Drug Enalaprilat Brand names Vasotec IV ® Indications Hypertension and hypertensive emergency. Acute left…

…of fraction of left ventricular volume ejected per beat and of ventricular end diastolic and residual volumes. Experimental and clinical observations with a precordial dilution…

…combination with new or progressive acute target organ damage. Common manifestations are hypertensive encephalopathy, intracerebral haemorrhage, acute coronary syndrome, acute left ventricular failure with pulmonary…

…a patient on digoxin treatment 1 ECG signs of left atrial enlargement 3 Left axis deviation 2 QRS duration ≥90 milliseconds 1 Prolonged R wave…

…mitrale, because mitral valve disease is a common cause (Figure 1). The duration of the P wave will exceed 120 milliseconds in lead II. Biatrial…

…dilatation. The most common cause is valvular regurgitation (insufficiency). For example, aortic regurgitation causes the flow of blood from the aorta back into the left…

…duration exceeding 140 msec in males and 130 msec in females , along with slurring or notching of the mid QRS in at least two left…

…who are otherwise healthy. The majority of those with LAFB, however, have significant heart disease. Myocardial infarction, coronary artery disease, left ventricular hypertrophy, dilated cardiomyopathy…

…Overview of the normal electrocardiogram (ECG / EKG) Figure 1. The classical ECG curve with its most common waveforms. Important intervals and points of measurement are…

…complex is actually a reflection of left ventricular depolarization. QRS duration is the time interval from the onset to the end of the QRS complex…

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…

…very common. Figure 2. Two ECGs showing left and right ventricular hypertrophy. Next chapter Biventricular Hypertrophy Related chapters Overview of Hypertrophy and Dilatation Left Ventricular…

…The most common serious error is dilating a vessel that turns out to be an artery — everything in the technique is designed to make sure…

…pericardium and surgical interventions are the most common causes of constrictive pericarditis. Of these three, idiopathic pericarditis is the most common cause of constrictive pericarditis…

…hand. These are as a rule left open. Facial bites can be sutured after careful debridement because of the cosmesis, often with antibiotic prophylaxis. Deep…

…with tamponade, and less common causes such as severe pre existing valvular disease or excessive beta blocker or calcium channel blocker exposure. The incidence of…

…left ventricular systolic function is depressed or preserved Whether hypotension is present Whether an accessory pathway is suspected, particularly before administration of digoxin The duration…

…of right bundle branch block (RBBB) Under normal conditions, both ventricles depolarize simultaneously. However, the QRS morphology is dominated by electrical vectors from the left…

…Causes of tachycardia (tachyarrhythmia) with wide QRS complexes (QRS duration ≥0,12 s) : ventricular tachycardia is the most common cause and it is potentially life…

…normal (QRS duration < 0.12 s), unless there is a intraventricular conduction defect. The ventricular rhythm is regular (as is the atrial) with a…

…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…

…al. Milrinone as Compared with Dobutamine in the Treatment of Cardiogenic Shock. N Engl J Med 2021; 385:516 525 Indications Severe left ventricular failure…

…Common structural consequences include left ventricular hypertrophy, left atrial enlargement, and abnormalities of diastolic filling. Mitral regurgitation may develop through papillary muscle displacement, annular dilatation…

…Causes of tachycardia (tachyarrhythmia) with wide QRS complexes (QRS duration ≥0,12 s) : ventricular tachycardia is the most common cause and it is potentially life…

…30 days if left untreated. Moreover, the pathophysiology of NSTEMI and unstable angina is very similar: both are due to partial (incomplete) coronary artery occlusions …

…with left ventricular dilation. This type of cardiomyopathy, referred to as tachycardia induced cardiomyopathy , can be caused by any tachyarrhythmia leading to prolonged periods of…

…hypertension and atherosclerotic coronary disease In patients with heavy alcohol use, left ventricular dilation may precede the development of increased left ventricular hypertrophy and mass…

…configurations and intervals A complete QRS complex consists of a Q , R and S wave. However, all three waves may not be visible and there…

…flow across the mitral valve. The duration of diastasis is inversely related to heart rate (diastasis is shorter at higher heart rates and vice versa ).

…the left ventricle partially or entirely outside the specialized conduction system. This slower conduction results in a prolonged QRS duration. The defining features of LBBB…

…system (His Purkinje network), which results in rapid impulse transmission and thus shorter QRS duration (as compared with apical pacing). Because ventricular pacing results in…

…aVF (with QRS duration <0.12 seconds), provided that other causes of right axis deviation have been excluded. Causes of left axis deviation Left bundle…

…aVF (with QRS duration <0.12 seconds), provided that other causes of right axis deviation have been excluded. Causes of left axis deviation Left bundle…

…VT]). The VF waveform is initially coarse ( i.e fibrillatory waves have large amplitudes) but as the duration of VF is prolonged, the amplitude gradually…

…prolonged duration of effect, and significant individual variations in its effect. Drug Enalaprilat Brand names Vasotec IV ® Indications Hypertension and hypertensive emergency. Acute left…

…PR interval <120 ms with a delta wave and wide QRS is indicative of 'Ventricular pre excitation', and QRS duration ≥140 ms is considered 'Profound…

…therapies have failed. Patients with structural heart disease or reduced left ventricular function are not eligible. Effects of propafenone and flecainide on ECG, heart rhythm…

…and Pathophysiology Posterior myocardial infarction is myocardial necrosis involving the posterior region of the left ventricle, usually as part of an inferoposterior or posterolateral infarction…

…Symptoms of systemic venous congestion include: Peripheral edema Rapid weight gain Increasing abdominal girth Early satiety Bendopnea Abdominal ascites Older patients may present atypically, with…

…nearly empty). In patients with an initial shockable rhythm, compressions and ventilation can extend the duration of the shockable rhythm by several minutes, allowing for…

…in the AV node is high grade. Causes of tachyarrhythmia with narrow QRS complexes (QRS duration < 0.12 s): sinus tachycardia, inappropriate sinus tachycardia…

…20 mL syringes, a three way tap. A Seldinger set with a guidewire, a dilator and a 5–8 F pigtail catheter , plus a drainage…

…uterus should be manually displaced to the woman's left side (Figure 1). Additional offloading of the vena cava can be accomplished using a wedge…

…its duration, morphology, and hemodynamic consequences, which collectively dictate the urgency and modality of intervention [3] . By Duration: Non sustained VT (NSVT): Defined as three…

…safe in patients with coronary artery disease since it does not increase heart rate, and reduces myocardial oxygen consumption. Time to onset of action: 5…

…prognosis in patients with suspected or established coronary artery disease (CAD). It combines echocardiographic assessment of left ventricular (LV) structure and function with exercise or…

…the left atrial appendage, although competing mechanisms such as large artery atherosclerosis and small vessel disease may also contribute to stroke in patients with AF…

…delay is defined as “a QRS duration greater than 110 ms in adults, greater than 90 ms in children 8 to 16 years of age…

…in patients with reduced left ventricular ejection fraction (LVEF). They are also recommended in patients within one year of MI and in those with LVEF…

…contraindicated, for example in asthma Contraindicated in impaired left ventricular function and together with an intravenous beta blocker Digoxin In heart failure or hypotension, or…

…patients with a CHA₂DS₂ VA score of 0–1. Check what applies in your own region. Duration above the threshold or unknown: at least three…