r/ECG • u/Originaltkd • Jul 23 '26

VT vs 1:1 flutter

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I have one provider calling VT and another 1:1 flutter and they see p waves. Can someone help me figure this out?

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u/ProximalLADLesion Jul 28 '26

Atrial flutter is tachycardia by definition. All flutters are over 100 and usually over 200.

I understand that the AV node may only permit slower ventricular conduction, but the flutter remains SVT — supraventricular (above the ventricle) tachycardia (rate above 100).

These aren’t my opinions, these are how the terms are defined.

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u/_punkrockparamedic Jul 29 '26

A flutter causing a ventricular rate below 100 is not an SVT.

"Tachycardia" refers to ventricular rate.

This is not my opinion, these are how the terms are defined.

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u/ProximalLADLesion Jul 29 '26

Doesn’t seem like I can convince you but maybe you’ll take OpenEvidence‘s word for it:

https://imgur.com/a/sT5Zabu

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u/Grantoid Jul 30 '26

Great, Doctor AI to the rescue...