Premature junctional complex: Difference between revisions
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==ECG Findings== | ==ECG Findings== | ||
[[File:WPW and PJC.JPG|thumbnail|WPW with PJC underlined in red]] | |||
*P wave is either: | *P wave is either: | ||
**Absent | **Absent | ||
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*May be seen in healthy individuals with no clinical significance | *May be seen in healthy individuals with no clinical significance | ||
*Or in pathology such as valvular disease, drug toxicity, electrolyte disorder | *Or in pathology such as valvular disease, drug toxicity, electrolyte disorder | ||
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==See Also== | |||
*[[ECG (Main)]] | |||
==Refences== | ==Refences== | ||
Revision as of 13:45, 30 March 2019
ECG Findings
- P wave is either:
- Absent
- Abnormal with PR < 120ms
- Retrograde, which may be inverted in inferior leads
- PJC arrives before next sinus beat
- Followed by compensatory pause
- From AV node region, with ventricular response usually normal, so QRS complexes usually narrow
- If conduction abnormal, may have RBBB morphology
Clinical Significance
- Less common than PVCs or PACs
- Differentiate from WPW (short PR)
- May be seen in healthy individuals with no clinical significance
- Or in pathology such as valvular disease, drug toxicity, electrolyte disorder