Tachycardia refers to a fast resting heart rate, usually over 100 beats per minute (bpm) in adults. Some people experience no symptoms, but others may notice palpitations and lightheadedness, among ...
Catecholaminergic polymorphic ventricular tachycardia is a potentially lethal disease characterized by adrenergically mediated ventricular arrhythmias manifested especially in children and teenagers.
Sinus tachycardia is a heart rate that is faster than normal, and it can be triggered by exercise, stress, or anxiety. However, it may also indicate an underlying health problem. Symptoms of sinus ...
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