Sinus Tachycardia
Sinus tachycardia is a condition where the sinoatrial (SA) node increases its firing rate, resulting in a heart rate exceeding 100 beats per minute while…
Inappropriate Sinus Tachycardia (IST)
Inappropriate Sinus Tachycardia (IST) is a condition characterized by an abnormally fast heart rate originating from the sinus node without an identifiable cause. Unlike physiological…