Paroxysmal Atrial Tachycardia (PAT) with Block: Difference between revisions
Jump to navigation
Jump to search
Line 19: | Line 19: | ||
==Related Chapters== | ==Related Chapters== | ||
* [[Atrial flutter]] | * [[Atrial flutter]] | ||
* [[Atrial tachycardia | * [[Atrial tachycardia]] | ||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} |
Revision as of 03:27, 31 January 2013
Please help WikiDoc by adding more content here. It's easy! Click here to learn about editing.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Diagnosis
Electrocardiographic Findings
- The P wave morphology is different than that of Normal Sinus Rhythm (NSR).
- The atrial rate is between 150 and 250 Beats Per Minute (BPM).
- It is less than 200 in most cases.
- In atrial flutter the rate is > 250 BPM in most cases.
- There is an isoelectric baseline between P waves in all leads.
- In atrial flutter there is a sawtooth appearance to the P waves.
- AV block
- Usually 2:1, but can be 3:1, and can even be variable and resemble atrial fibrillation.
- Digoxin toxicity caused 73% of cases in the Lown series. Other reports put the number at 40 to 82%.