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Acquired QT Prolongation and Drug-Induced Arrhythmia

Arrhythmias and arrhythmology Drugs and electrolyte imbalance ECG Definition and Pathophysiology Acquired long QT syndrome (LQTS) is characterised by an abnormal prolongation of the QT…

🟠 Calculating Shunt Fraction (Qp/Qs) Using Echocardiography

…Qp) to systemic blood flow (Qs). This measurement is pivotal in diagnosing and managing congenital or acquired cardiac shunts, such as atrial septal defects (ASD…

Empirical antibiotic therapy: quick reference for common infections

…3 IV Pneumonia, in chronic lung disease amoxicillin 750 mg × 3 PO 5–7 days or benzylpenicillin 3 g × 4 IV Pneumonia, suspected atypical pathogen…

Cardiovascular Prevention in the Very Elderly

…interaction between these acquired risks and age related cardiovascular remodeling contributes to the high incidence and prevalence of coronary and vascular disease in older adults…

QT duration & corrected QT (QTc) duration: ECG features & implications

…arrhythmias and therefore QT duration must always be assessed. QT prolongation may be congenital (due to genetic mutations) or acquired (secondary to medications, electrolyte disorders)…

M-mode (motion mode) echocardiography

…M mode. M mode images are acquired by manually placing an ultrasound line in the 2D image (Figure 1). The line is placed along the…

🟠 Antiarrhythmic drugs in acute ventricular arrhythmias (ventricular tachycardia, ventricular fibrillation)

…that results from long QT syndrome (LQTS). TdP occurs exclusively in individuals with LQTS (congenital or acquired). The VT is polymorphic with a gradual alteration…

Pulmonary Hypertension: Classification and Treatment Principles

…in healthy people older than 60 years. The abnormal slope does not itself distinguish precapillary from postcapillary disease. A PAWP/cardiac output slope greater than…

Antiarrhythmic drugs in ventricular tachyarrhythmias

…that results from long QT syndrome (LQTS). TdP occurs exclusively in individuals with LQTS (congenital or acquired). The VT is polymorphic with a gradual alteration…

Aortic regurgitation

…rheumatic diseases Ehlers Danlos syndrome (may also cause aortic dissection) Subaortic membrane Endocarditis Echocardiography in aortic regurgitation 2D Echocardiography The images are acquired in PLAX…

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