R-wave in V1

Background

• Early R wave transition (V1 or V2)
• Also known as early precordial transition

Differential Diagnosis

• Posterior MI
• RBBB
• WPW
• RVH
• Hypertrophic cardiomyopathy
• Acute RV dilation
• LV ectopy
• Progressive muscular dystrophy
• Dextrocardia
• Misplaced precordial leads
• Normal variant

See Also

• ECG (Main)

References

Mattu, Brady, et al. Prominent R Wave in Lead V1: Electrocardiographic Differential Diagnosis; Am J Emerg Med 2001;19:504-513: - See more at: http://www.ems12lead.com/2008/11/07/precordial-leads-the-transition-r-wave-progression-rs-ratio-in-lead-v1/#sthash.xsVlqlSx.dpuf