Diferencia entre revisiones de «Premature junctional complex»

(Text replacement - "Category:Cards" to "Category:Cardiology")
Sin resumen de edición
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==EKG Findings==
==ECG Findings==
*P wave be either:
*P wave be either:
**Absent
**Absent
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[[File:WPW and PJC.JPG|thumbnail|WPW with PJC underlined in red]]
[[File:WPW and PJC.JPG|thumbnail|WPW with PJC underlined in red]]


==Sources==
==Refences==
*Amal Mattu. Mattu ECG Case: Feb 5 2012. Published Apr 9, 2012. UMEmergencyMed. https://www.youtube.com/watch?v=Sb8JozMnxpI.
<references/>
*Burns E. Premature Junctional Complexes. LifeInTheFastLane. http://lifeinthefastlane.com/ecg-library/pjc/


[[Category:Cardiology]]
[[Category:Cardiology]]

Revisión del 15:05 18 may 2016

ECG Findings

  • P wave be either:
    • Absent
    • Abnormal P wave with short PR < 120ms
    • Retrograde P waves, 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
WPW with PJC underlined in red

Refences