Pediatric ECGs: Difference between revisions
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A excellent description of the neonatal electrocardiogram has been made by Schwarz et al.<cite>schwarz1</cite><cite>schwarz2</cite> | |||
==Heart Axis== | ==Heart Axis== | ||
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<biblio> | <biblio> | ||
#aha pmid=19228822 | #aha pmid=19228822 | ||
#schwarz1 pmid=12269267 | |||
#schwarz2 pmid=12739597 | |||
</biblio> | </biblio> | ||
Revision as of 08:59, 8 October 2009
A excellent description of the neonatal electrocardiogram has been made by Schwarz et al.schwarz1schwarz2
Heart Axis
| Age | QRS Axis Normal Values | Abnormal Values | Description | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adult | -30° to 90° |
|
| ||||||||||
| 8 to 16 years | 0° to 120° | >120° | Right-axis deviation | ||||||||||
| 5 to 8 years | 0° to 140° | >140°
<0° |
Right-axis deviation
Left-axis deviation | ||||||||||
| 1 year to 5 years | 5° to 100° | >100° | Right-axis deviation | ||||||||||
| 1 mo to 1 y | 10° to 120° | >120°
<10° to -90° |
Right-axis deviation
Left-axis deviation | ||||||||||
| Neonate | 30° to 90° | >190° to -90°
<30° to <-90° |
Extreme right axis deviation
Left axis deviation |
Conduction
RBBB: if consistent morphology and if QRS width >90ms in children < 4 years and >100ms in children 4-16 yearsaha LBBB: if consistent morphology and QRS width >90ms in children < 4 years and >100ms in children 4-16 yearsaha
References
<biblio>
- aha pmid=19228822
- schwarz1 pmid=12269267
- schwarz2 pmid=12739597
</biblio>