P Wave & QRS Complex
The coordination of the P wave and QRS complex is also affected by the increased conduction velocity of the electrical impulses in the ventricular myocardium.
- The inverted P wave may be seen before or after the QRS complex or it may be buried within it.
- Refer to the image on the next slide to reinforce this concept.
Intro to PJC
- PJC's can occur for a number of different reasons i.e., diet, fatigue, stress, disease, ischemia to name a few.
- Premature complexes frequently occur in bradycardic rhythms, but may occur almost any time.
- PJC's occur when an early electrical impulse occurs from a location in the atria other than the SA node.
We will be discussing the following complexes and rhythms:
- Premature Junctional Complexes and Junctional
- Escape Beats
- Junctional Rhythm
- Accelerated Junctional Rhythm
- Junctional Tachycardia
- Although not specifically a Junctional rhythm, we include supraventricular tachycardia because it may originate above the ventricles (including the junction).