Wide QRS

[ijregner]

I was in afib for almost eight days. This morning I went back into NSR. With a couple of Kardia readings of NSR every other has been Sinus Rythm with wide QRS. I did contact my cardiologist after the first two readings and she said not to worry about it. I have an appointment with her on Friday. I have had a couple of readings off and on of wide QRS but never every reading. Comments?

[BobD Volunteer]

Some AF related drugs can do that.

[ijregner in reply to BobD]

Yes, I take propafenone and know that can happen. My concern is do I need to do anything before Fri appointment. I respect your opinion. Thank you

[CDreamer]

Flecainide can cause that but my understanding is that occasional reading of wide QRS is not of concern unless it is sustained. I had those sorts of readings with Flecainide. You did well to get a consult so soon.

[ijregner in reply to CDreamer]

Thank you so much.

[jwsonoma]

Mine was a little high and my cardiologist said readings very and are often impercise so not to worry.

[Ppiman]

A "wide QRS" is often, I gather, caused by a bundle branch block. These are electrical pathways from the heart's lower pacemaker (the AV / atrio-ventricular node) to the two ventricles. They can become unable to conduct for various reasons, so the heart takes longer alternative electrical pathways, resulting in a very slightly slower ventricular contraction, widening the ECG's "QRS" measurement. They are relatively common, I was told, with right bundle branch block (RBBB) more so than left, which I have. I read that they have little consequence generally, but the cardiologist I saw said that I ought to have an echo-cardiogram every couple of years as a consequence to be sure the ventricles continue to work well. My GP blames my ectopic beats on it, too.

Steve

[Tellingfibs]

I have the same readings with Kardia 2 or 3 times a week. I explained this to my cardiologist and he said I needn’t give it a thought.

[Palpman]

How wide is wide? 450ms is fine. 480ms is borderline worrying and 500ms+ is worrying.

[saulger in reply to Palpman]

You must be thinking of wide QTc. The range for normal QRS is 60-100ms.

[Palpman in reply to saulger]

My apologies. I read that wrong.

[ijregner in reply to saulger]

No Wide QRS

[ijregner]

no worry. I appreciate that you bothered at all.