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Oct 8, 2024 · Atrial fibrillation (AF) is the most common sustained arrhythmia. It is characterised by disorganised atrial electrical activity and contraction. The incidence and prevalence of AF is increasing. Lifetime risk over the age of 40 years is ~25%.
This chapter discusses the classification, causes (electrophysiology), ECG /EKG diagnosis, risk factors and management (treatment) of atrial fibrillation. Includes a complete e-book, video lectures, clinical management, guidelines and more.
Healthcare professionals might suspect AF after feeling the pulse and confirm the diagnosis by interpreting an electrocardiogram (ECG). [8] . A typical ECG in AF shows irregularly spaced QRS complexes without P waves. [8]
Mar 8, 2024 · Electrocardiogram (ECG or EKG). This quick and painless test measures the electrical activity of the heart. Sticky patches called electrodes are placed on the chest and sometimes the arms and legs. Wires connect the electrodes to a computer, which prints or displays the test results.
Apr 26, 2023 · Aside from a detailed history and examination, the ECG is critical in making the diagnosis of atrial fibrillation. On ECG, atrial fibrillation presents with the typical narrow complex "irregularly irregular" pattern with no distinguishable p-waves.
Atrial fibrillation occurs when action potentials fire very rapidly within the pulmonary veins or atrium in a chaotic manner. The result is a very fast atrial rate — about 400 to 600...
Jan 14, 2021 · At the AV node 'every now and then' a beat is conducted to the ventricles, resulting in an irregular ventricular rate, which is the typical ECG characteristic of atrial fibrillation. Sometimes atrial fibrillation results in a course atrial flutter wave on the ECG, but the baseline can also be flat.
Atrial fibrillation is a rapid, irregularly irregular atrial rhythm. Symptoms include palpitations and sometimes weakness, effort intolerance, dyspnea, and presyncope. Atrial thrombi may form, causing a significant risk of embolic stroke. Diagnosis is by electrocardiography.
Oct 6, 2024 · Combination of digoxin and a β-blocker recommended for long-term management of compensated heart failure patients. Most textbooks and literature focus on the management of AF in the ward, emergency department, or outpatient setting.
May 19, 2024 · Atrial fibrillation consists of the appearance of disorganized stimuli at atria, with rates from 350 to 600 bpm. These high rates cause atrial stasis and the loss of atrial contraction, favouring atrial thrombus formation and thus increasing the risk of thromboembolisms.
