What is the typical heart rate associated with stable paroxysmal supraventricular tachycardia (PSVT)?

In the context of stable paroxysmal supraventricular tachycardia (PSVT), the typical heart rate ranges from 150 to 220 beats per minute. This elevated heart rate occurs due to rapid conduction pathways or reentrant circuits in the atria or AV node, leading to a rapid heartbeat.

The defining characteristic of PSVT is its abrupt onset and termination, which can cause symptoms like palpitations, lightheadedness, or chest discomfort. While normal heart rates for children can vary widely depending on age, a heart rate greater than 150 bpm is a hallmark indicator of PSVT, distinguishing it from other heart rhythm disturbances, such as sinus tachycardia or bradycardia.

Understanding the typical heart rate range for PSVT is crucial for clinicians to make timely and informed decisions about treatment options, such as vagal maneuvers or medications, and to effectively manage the patient's condition.