I30-I52: Other forms of heart disease

I47: Paroxysmal tachycardia

Paroxysmal tachycardia is a group of heart conditions characterized by episodes of abnormally rapid heart rate. These episodes, often called "paroxysms," can suddenly start and stop - hence the term "paroxysmal." There are different types of paroxysmal tachycardia, including supraventricular tachycardia, atrial flutter, paroxysmal atrial tachycardia and ventricular tachycardia. These conditions can occur due to multiple reasons, such as heart disease, a specific genetic predisposition, or sometimes without an identifiable cause. Common symptoms typically include palpitations, shortness of breath, chest discomfort, and, in more serious cases, faintings or near faintings. Paroxysmal tachycardia primarily affects the cardiovascular system and can potentially lead to decreased blood flow to other organs if not managed effectively.