Dominant R wave in V1

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• normal
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• urgent cath
• V1
• v1-v2 placed too high
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• vasospasm
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• wide complex irregular tachycardia
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• Wide QRS (BBBs & Paced Rhythms) vs. STEMI
• wide qrs bradycardia
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• wide qrs differential
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• wide vs. narrow QRS
• Wolff Parkinson White
• Wolff-Parkinson White (WPW) Syndrome
• WPW
• wpw syndrome
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• WPW with Antidromic SVT
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• Young patients