Print. Uterine prolapse is when the uterus drops down into the vagina, and in severe cases, outside the vagina. It is one of the more distressing gynecologic conditions and spares no age group.
In most leads, the T wave is positive. This is due to the repolarization of the membrane. During ventricle contraction (QRS complex), the heart depolarizes. Repolarization of the ventricle happens in the opposite direction of depolarization and is negative current.
Often the retrograde P wave can be seen on the ECG, hiding in the ST-T wave of the PVC. The most unusual post-PVC event is when retrograde activation of the AV junction re-enters the ventricles as a ventricular echo. This is illustrated below. The ladder diagram below the ECG helps us understand the mechanism.