It doesn t work very well in the middle of class. They have often been sent to the Atrial flutter, which is also now called atrial muscle reentry, to differentiate it from reentry through the usual isthmus around the tricuspid valve annulus. Atrial muscle reentry is used for patients who have had congenital heart disease and have scars in other places in their atrium where a signal can travel in a circle. These can be very variable, as Next tachycardia is ventricular tachycardia. It s best to check several leads because it can look normal and some leads are narrow.
P waves are usually absent or intermittent.
An important diagnostic tool is that Next we ll go on to slow heart rates. It can be related to increased parasympathetic tone like what you would see with athletes, or anesthesia or sedation. It can be seen with hypoxemia. Everybody has probably seen a neonate with apnea and bradycardia. The treatment of sinus bradycardia is to treat the underlying cause as long as it s pathologic.