Pulseless electrical activity electrocardiogram: Difference between revisions
No edit summary |
|||
| Line 3: | Line 3: | ||
{{CMG}} | {{CMG}} | ||
==Overview== | ==Overview== | ||
===Electrocardiogram=== | |||
The appearance of the [[electrocardiogram]] in the setting of PEA varies, but several common patterns exist. There may be a normal [[sinus rhythm]] or [[sinus tachycardia]], with discernible [[P waves]] and [[QRS complexes]]. Sometimes there is a [[bradycardia]], with or without [[P waves]], and often there is a [[wide QRS complex]].<ref>Foster B, Twelve Lead Electrocardiography, 2nd edition, 2007</ref> The presence of a [[QRS interval]] > 0.20 seconds is associated with a poorer prognosis. The EKG should be carefully evaluated for signs of: | |||
*[[Hyperkalemia]] (peaked [[T waves]], [[complete heart block]], a ventricular escape rhythm) | |||
*[[ST segment elevation MI]] should be ruled out | |||
*[[Osborne waves]] suggest [[hypothermia]] | |||
*[[QRS interval]] prolongation suggests [[tricyclic antidepressant overdose]] | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
Revision as of 13:43, 17 September 2012
|
Pulseless electrical activity Microchapters |
|
Differentiating Pulseless Electrical Activity from other Diseases |
|---|
|
Diagnosis |
|
Treatment |
|
Case Studies |
|
Pulseless electrical activity electrocardiogram On the Web |
|
American Roentgen Ray Society Images of Pulseless electrical activity electrocardiogram |
|
Directions to Hospitals Treating Pulseless electrical activity |
|
Risk calculators and risk factors for Pulseless electrical activity electrocardiogram |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Electrocardiogram
The appearance of the electrocardiogram in the setting of PEA varies, but several common patterns exist. There may be a normal sinus rhythm or sinus tachycardia, with discernible P waves and QRS complexes. Sometimes there is a bradycardia, with or without P waves, and often there is a wide QRS complex.[1] The presence of a QRS interval > 0.20 seconds is associated with a poorer prognosis. The EKG should be carefully evaluated for signs of:
- Hyperkalemia (peaked T waves, complete heart block, a ventricular escape rhythm)
- ST segment elevation MI should be ruled out
- Osborne waves suggest hypothermia
- QRS interval prolongation suggests tricyclic antidepressant overdose
References
- ↑ Foster B, Twelve Lead Electrocardiography, 2nd edition, 2007