T wave changes: Difference between revisions
(Created page with "*Normally upright in 1, 2, V3-V6 *Negative in AVR *If is greater than 2/3 height of R wave then is abnormal *Deep symmetrical inverted T waves: #Left ventricle apical hypertro...") |
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#BBB's or [[WPW]] | #BBB's or [[WPW]] | ||
#Idiopathic | #Idiopathic | ||
*Distribution | |||
**T wave is normally inverted in aVR; sometimes inverted in III, aVF, aVL, V1 | |||
*T-wave inversions in V2-V6 are always pathologic | |||
*Morphology | |||
**Inverted, symmetric, | |||
**Transient changes suggests ischemia without infarction | |||
**Persistent changes suggests infarction (troponin elevation usually seen) | |||
*Pseudonormalization | |||
**In presence of baseline TWI (within 1 month), reocclusion causes normalization of TWI | |||
**Should be interpreted as evidence of ischemia | |||
==See Also== | ==See Also== | ||
Revision as of 04:23, 25 February 2015
- Normally upright in 1, 2, V3-V6
- Negative in AVR
- If is greater than 2/3 height of R wave then is abnormal
- Deep symmetrical inverted T waves:
- Left ventricle apical hypertrophy
- Raised ICP (e.g. SAH)
- Wellen's (MI)
- Paced rhythm
- BBB's or WPW
- Idiopathic
- Distribution
- T wave is normally inverted in aVR; sometimes inverted in III, aVF, aVL, V1
- T-wave inversions in V2-V6 are always pathologic
- Morphology
- Inverted, symmetric,
- Transient changes suggests ischemia without infarction
- Persistent changes suggests infarction (troponin elevation usually seen)
- Pseudonormalization
- In presence of baseline TWI (within 1 month), reocclusion causes normalization of TWI
- Should be interpreted as evidence of ischemia