Right bundle branch block: Difference between revisions
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*Triphasic QRS (rSR') or biphasic (qR), often with ST depression & TWI in V1-V3 | *Triphasic QRS (rSR') or biphasic (qR), often with ST depression & TWI in V1-V3 | ||
**V1 must have a positive complex | **V1 must have a positive complex | ||
** | **Second R wave in V1 is ''always'' taller than the first (rSR') | ||
*Slurred S in 1 and V6 | *Slurred S in 1 and V6 | ||
*ST depression and TWI in other leads should arouse suspicion | |||
*'''Any ST elevation is abnormal in RBBB and must prompt evaluation for [[STEMI]]''' | *'''Any ST elevation is abnormal in RBBB and must prompt evaluation for [[STEMI]]''' | ||
[[File:Rbbb morphology lead vi wm.jpg|thumbnail|RBBB V1 Morphologies]] | [[File:Rbbb morphology lead vi wm.jpg|thumbnail|RBBB V1 Morphologies]] | ||
Revision as of 17:40, 15 February 2018
Evaluation
- QRS > 0.12 in limb leads
- Triphasic QRS (rSR') or biphasic (qR), often with ST depression & TWI in V1-V3
- V1 must have a positive complex
- Second R wave in V1 is always taller than the first (rSR')
- Slurred S in 1 and V6
- ST depression and TWI in other leads should arouse suspicion
- Any ST elevation is abnormal in RBBB and must prompt evaluation for STEMI
See Also
References
- Adapted from Niemann, Lampe, Pani, Donaldson, ECGpedia.org
- Journal of Electrocardiology. Vol 43 (2010). 40-42.