Malignant otitis externa is an invasive bacterial infection of the external ear. It occurs in diabetic patients and other immunocompromised patients, typically following ear trauma. The mortality rate, even with the best care, is nearly 10%.
External otitis is an infection of the external auditory canal and pinna. It is commonly referred to as ‘swimmers’ ear’. It peaks between 40 and 50 years and affects men and women equally. Variations of otitis externa Variation Description Acute…
Cerumen (ear wax) is a normal substance that protects the ear canal. Cerumen impaction is common. It peaks between 50 and 60 years and affects men and women equally.
Long QT syndrome is an inherited condition that is characterised by delayed repolarization of the ventricles, which increases the risk of ventricular tachyarrhythmias, leading to syncope, cardiac arrest, or sudden death. It can be diagnosed incidentally on an EKG, following…
Sick sinus syndrome is characterized by abnormal sinus node functioning with resultant bradycardia and cardiac insufficiency. It can be caused by many factors, both intrinsic and extrinsic Causes of sick sinus syndrome Classification Causes Intrinsic Idiopathic degenerative fibrosis (most common),…
Atrial Fibrillation Atrial fibrillation is a chaotic irregular atrial rhythm, with an atrial electrical activity of about 300 – 600 bpm, resulting in an irregularly irregular ventricular rate. It peaks at 70+ years, and affects men slightly more than women.…
Sinus tachycardia is HR > 100 bpm with a normal sinus rhythm. Patients are usually asymptomatic, and it is inconsequential. Sinus tachycardia is prevented in patients with coronary artery disease by using beta-blockers.
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