ECG Introduction to ECG interpretation Principles of cardiac electrophysiology and electrocardiography (ECG) To ensure effective cardiac pumping function, the atria and the ventricles must be…

ECG Introduction to ECG interpretation Cardiac electrophysiology: Membrane potential, action potential, automaticity and electrical vectors Video lecture The following video lecture summarises this chapter. The…

ECG Video lecture: Cardiac electrophysiology, action potentials, ECG leads & vectors

Cardiology Pharmacology & dosing Definition and Pathophysiology Digoxin, a cardiac glycoside first described by William Withering in 1775, is the oldest pharmacologic agent in the heart…

…elevation, and sudden cardiac death (SCD), Brugada syndrome (BrS) has evolved from an obscure electrocardiographic curiosity into a major focus of contemporary cardiac electrophysiology [1] …

…will be blocked at that point. The length of the refractory period (see Basic Cardiac Electrophysiology) varies with heart rate. The length is shortened as…

Arrhythmias and arrhythmology Pharmacology & dosing Definition and Pathophysiology Sotalol is a nonselective beta adrenoceptor blocker devoid of intrinsic sympathomimetic activity that also prolongs cardiac repolarization…

…various chemotherapeutic agents. In the acute setting, bradyarrhythmic cardiac arrest or asystole may result from reversible systemic insults, including hypovolemia, hypoxia, cardiac tamponade, tension pneumothorax…

…how well each book/website have covered the following aspects: Physiology (particularly cardiac electrophysiology) Pathophysiology (causes and mechanisms underlying various conditions diagnosed using ECG) Epidemiology…

…the ECG waveforms. The cardiac cycle begins in the sinus node (sinoatrial node), where depolarization occurs through automaticity (refer to Cardiac Electrophysiology). The electrical impulse…

…al it was reported that early repolarization was associated with 3–5 times as great a risk of idiopathic ventricular fibrillation and sudden cardiac arrest…

…the left and right bundle branch, which branches out into the Purkinje network (refer to Cardiac Electrophysiology: The Action Potential). Impulse conduction through the Purkinje…

…into ventricular fibrillation (VF). Proarrhythmia, defined as a drug induced or drug exacerbated cardiac arrhythmia, constitutes a major clinical problem. It can manifest as an…

…imaging, or electrophysiology in relation to ACE inhibitor therapy. Biomarkers and Laboratory Findings Monitoring renal function and potassium is a critical component of ACE inhibitor…

…50 mm/s. Figure 4. RBBB and LBBB. Electrophysiology of right bundle branch block (RBBB) Under normal conditions, both ventricles depolarize simultaneously. However, the QRS…

…Electrophysiology of second degree AV block Mobitz type 1 The dysfunction in the AV node in Mobitz type 1 block can be viewed as a…