QRS Morphology: Difference between revisions
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|previouspage=P_wave_morphology | |||
|previousname=Step 5: P wave morphology | |||
|nextpage=ST morphology | |||
|nextname=Step 7: ST morphology | |||
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{{authors| | {{authors| | ||
|mainauthor= [[user:Drj|J.S.S.G. de Jong, MD]] | |mainauthor= [[user:Drj|J.S.S.G. de Jong, MD]] | ||
Revision as of 14:49, 27 July 2007
| «Step 5: P wave morphology | Step 7: ST morphology» |
| Author(s) | J.S.S.G. de Jong, MD | |
| Moderator | J.S.S.G. de Jong, MD | |
| Supervisor | ||
| some notes about authorship | ||
The basic questions in judging QRS morphology are:
- Are there any pathological Q waves as a sign of previous myocardial infarction?
- Are there signs of left or right ventricular hypertrophy?
- Does the QRS complex show microvoltations (roughly QRS < 5mm)?
- Is the conduction normal or delayed (QRS-interval > 0,12s)?
- Is the R wave propagation normal? Normally R waves become larger from V1-V5. At V5 it should be maximal. If the R wave in V2 is larger than V3, this could be a sign of a (previous) posterior myocardial infarction.
If all these questions can be answered with 'no' you can go on to the next step: ST morphology. <analytics uacct="UA-807577-6"></analytics>