Paroxysmal atrial tachycardia is a type of atrial arrhythmia and is also known as paroxysmal supraventricular tachycardia (PSVT). PAT increases heart rate from 60 to 100 beats per minute (bpm) to between 130 and 230 bpm with infants demonstrating substantial heart rate greater than 220 bpm. Symptoms of PAT may include palpitations, lightheaded, sweating, shortness of breath, chest pain and...