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Atrial fibrillation: ECG, classification, causes, risk factors & management

…with individuals without atrial fibrillation. The increased risk of stroke is explained by formation of thrombi in the left atrial appendage . Such thrombi may leave…

Assessment of the pupillary reflex in cardiac arrest

…8%. This implies that approximately one third of the patients who ultimately had a favorable neurological recovery exhibited an abnormal pupillary reflex upon initial examination…

Cardiac amyloidosis

…amyloidosis [8, 15]. AL Amyloidosis: This is a plasma cell dyscrasia in which abnormal plasma cells produce misfolded immunoglobulin light chains [8, 19]. Light chains…

Mechanisms of cardiac arrhythmias: from automaticity to re-entry (reentry)

…an in depth discussion on mechanisms are referred to Zipes et al . Main causes of cardiac arrhythmias Arrhythmias arise if the impulse formation is abnormal…

ST segment depression in myocardial ischemia and differential diagnoses

…the primary ECG finding is the ST segment depressions. In STE ACS, on the other hand, the ST segment depressions are secondary findings and the…

Sinoatrial arrest & sinoatrial pause (sinus pause / arrest)

…vagal tone. In all other situations, sinus arrest/pause should be considered abnormal, and the following differential diagnoses are at hand: Sinus node dysfunction. Side…

🟠 Left ventricular diastolic function

…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…

🟠 Right ventricle, pulmonary artery, pulmonary artery pressure

…cm 1.5–2.1 2.2–2.5 2.6–2.9 3.0 RV SIZE AND FUNCTION (MEASURED IN A4C) RV diastolic area…

🟠 Left and right atrium

…size and volume Women Men Normal range Mildly abnormal Moderately abnormal Severely abnormal Normal range Mildly abnormal Moderately abnormal Severely abnormal ATRIAL DIMENSIONS LA diameter…

🟠 Pulmonary valve

…with two dimensional and Doppler echocardiography. In Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography 16 (7), pp…

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