Is sinus rhythm with wide QRS dangerous?

[sealover]

Is wide QRS dangerous?

[CDreamer]

My understanding is that it is more an indicator for further investigations. If you have any concerns please see a doctor.

I have had wide QRS with tachycardia on a few occasions which I believe this was caused by drugs. I stopped the drugs and everything returned to normal.

[CDreamer]

If you missed it there is a related post here healthunlocked.com/afassoci...

[etheral]

Depending on the drugs you're taking, a wide QRS can be a risk factor for Ventricular Tachycardia, a dangerous and potentially fatal arrhythmia. This is why Tikosyn has to be started while you are monitored in the hospital. This is a worst case scenario. Contact your EP ASAP and if you have any dizziness or rapid heart rate go to the ED. Best,etheral

[sealover]

Thanks so much for your insights. This site has been a blessing to me for many years. In addition to your shared knowledge, the community spirit is priceless. Something interesting has come to light in the last few hours. My Kardia device was giving me a "sinus rhythm with wide QRS" reading. I have had Afib for 8 years and never before had such a reading.....upsetting to say the least. And yes, to try and read and understand what QRS means is all but impossible. So I wondered if the reading could be faulty????? I tried seperating my phone and the Kardia device to a greater distance........at least 3 feet; and the readings changed to "Normal Sinus Rhythm". I know nothing much about computers and electronics; but this simple act of seperating the 2 devices seems to make a difference. I can't find anything in the Kardia instructions, but this might be an important thing to consider. Has anybody else experienced something like this?????? Best wishes to all, Sealover

[CDreamer in reply to sealover]

If you read the thread from the link I posted you will see a post from Dr Dave - if you don’t already know - he invented the Kardia so that’s just about the most expert opinion you are ever likely to have.

If you are concerned then you should see your doctor for 12 lead ECG and a consultation.

[Hidden in reply to sealover]

I've also had a few of these readings intermittently on Kardia. The device lists bundle branch block as a possible cause, I've shown the ECG's to a GP and cardiac nurses and they didn't seem unduly concerned. The significance may depend on *how* wide the interval is. I would send the Kardia ECGs (both the wide QRS ones and the normal ones) to your cardiologist.

[Ppiman]

I have this quite often because I have some degree of left-branch bundle block (LBBB) but I gather it can also be a perfectly normal finding in others. My friend has had a replacement heart valve and he also has it.

It will likely have showed during any investigations you have had, if you have had any yet. If you haven't, then telling your GP about it would be a first move.

Steve