…other pigmented lesion of uncertain diagnosis. A lesion in which histology is needed for management. Cryoglobulinaemia, cold agglutinin disease, cold urticaria. Relative: Basal cell carcinoma…

…history, a positive Dix–Hallpike test and the absence of other neurological findings. The treatment is a repositioning manoeuvre. Indications Brief attacks of vertigo, seconds…

…While this can occasionally be benign and manifest even in healthy individuals, a tension pneumothorax arises when the volume of air is substantial enough to…

…targeted examination. The patient's description of the quality of the dizziness — rotatory vertigo, unsteadiness or faintness — discriminates poorly between dangerous and benign causes. Ask…

…table below shows a systematic history taking in patients presenting with chest pain (chest discomfort) or other symptoms suggestive of the five conditions listed above…

…The tumors can be asymptomatic for a long time and be detected randomly when investigating other conditions. More dramatic onset of symptoms can be seen…

…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…

ECG Indications for pacemaker implantation Bradyarrhythmia is the main indication for the implantation of a pacemaker. When considering a permanent pacemaker for bradyarrhythmia, it is…

…mentioned below are discussed in detail in other chapters, to which links are provided throughout the text. Heart rate During the first week of life…

…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

…other situations than does ventricular rhythm; idioventricular rhythm is primarily seen after reperfusion in an occluded coronary artery. It also occurs as side effect of…