…A single central feature is enough to proceed with urgent investigation , and a normal CT of the brain does not exclude an infarction in the…

…episodes Iatrogenic events (e.g., during central venous catheter insertion) Underlying lung pathologies In cases of benign pneumothorax, positive pressure ventilation can precipitate a tension…

…brainstem infarction, intoxication, Wernicke's encephalopathy, other central disease Neurological examination, gait and truncal stability, often MRI Episodic triggered vestibular syndrome Brief attacks, usually lasting…

…margin must be included in the freeze. Contraindications Absolute: Suspected melanoma or any other pigmented lesion of uncertain diagnosis. A lesion in which histology is…

…discomfort) or other symptoms suggestive of the five conditions listed above. It is important that history taking and physical examination is carried out systematically and…

…Thromboembolism). There are genetic syndromes that result in the emergence of multiple myxomas. Papillary fibroelastoma Papillary fibroelastoma is benign primary tumors affecting adults. These tumors…

…ventricular fibrillation. The combination of early repolarization pattern on ECG and ventricular fibrillation or sudden cardiac arrest is referred to as early repolarization syndrome . Early…

…likely that the arrhythmia is benign; otherwise further examination is warranted. Figure 1. Sinus arrhythmia (respiratory sinus arrhythmia). Treatment of sinus arrhythmia Sinus arrhythmia is…

…and clinical presentation of VT, with a deep dive into the underlying etiologies ranging from benign idiopathic variants to complex scar related and genetic substrates…

…Those of us who have read guidelines may agree with those viewpoints. Going through some guidelines the other day I realized that they are indeed…

…observed. Inappropriate sinus tachycardia Treatment of inappropriate sinus tachycardia begins with assessment and management of reversible causes. Because the prognosis is described as benign, treatment…

…ischaemia. The absence of obstructive disease therefore does not establish a benign diagnosis. ANOCA/INOCA is associated with recurrent symptoms, impaired quality of life, repeated…

…depolarizes the ventricles) passes through the bundle of His, and hence it originates in the atria. In other words: tachycardias with narrow QRS complexes originate…

…for decades, and it has been regarded as a benign form of ST segment elevation with slurring or notching at the J point. A notch…

…fascicular block, the myocardium without fascicular supply will depend on impulses spreading from other parts of the ventricle (where the fascicle is intact). Figure 1…

…General hypoxia. Autonomic nervous system Neurocardiogenic syncope. Carotid Sinus Hypersensitivity. Electrolyte disturbances Hypokalemia. Hyperkalemia. Hypercalcemia. Benign causes Well trained athletes display bradycardia at rest. Bradycardia…

…variations in heart rate are due to variations in the activity of the autonomic nervous system and changes in the automaticity of the sinoatrial node…

…These cells are capable of spontaneous depolarization (i.e they display automaticity) and can therefore act as latent pacemakers (which become active when atrial impulses…

…are balanced and no ischemia occurs. (Some individuals display a benign form of ischemia located in the subendocardium during exercise; this manifests with ST segment…

…is benign and the most common cause of sinus arrest/pause. It commonly affects younger individuals who endure intense emotional stress, acute pain or other…

…This is also a normal finding. Abnormal (pathological) causes of sinus bradycardia In all other situations, sinus bradycardia should be regarded as a pathological finding…

…an increased risk of thromboembolism. Pacemaker treatment is discussed in a separate article. Treatment of bradycardia (due to any cause) Benign (physiological) causes of bradycardia …

…once the exercise is stopped. Some experts believe that these ST segment depressions represent a benign form of subendocardial ischemia. Refer to Exercise Stress Testing…

…discussed previously in this article. Briefly, accelerated ventricular rhythm (also called idioventricular rhythm) is a benign ventricular rhythm with a heart rate of 60–10

…seconds). The QRS complex is wide simply because the ectopic impulses that cause these rhythms spread partially or entirely outside of the ventricular conduction system…