Heart Rhythm Community
Can someone please help
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This patient support community is for discussions relating to heart rhythm issues, arrhythmia, irregular heartbeat, implanted defibrillators, pacemakers, and tachycardia.

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Can someone please help

Can someone please tell me if ventricular tachycardia on a treadmill stress test is dangerous if it is non-sustained?  It was 150 beats per minute.  I went into the v-tach more than once during the test, according to my EP.  He started me on 50 mg. Metoprolol (beta blocker) and I will have another treadmill test in a month.

Last year I went into non-sustained v-tach on a treadmill and was told it was monomorphic with a few beats that were polymorphic in nature.  Another treadmill showed frequent ventricular ectopy.  Within the last year I have had a heart cath., 3 event recorders, echo, heart MRI, 3 treadmill tests.  I have only about 10% blockage in coronary arteries, MRI was ok and echo ok.  One of the things the EP was looking for with MRI was ARVD.

After my v-tach last year I saw two different Eps.  One of them said he thought I could have had this all my life (I have had several bouts of light-headedness during my life, and I had grand mal seizures in my early 20s (doctor could not determine cause).  He said he could do an EP study and there was about 65% chance of finding it and ablating it.

  The EP I currently use told me last year he did not think I have had them all my life, and thought there was a 0% chance of finding something with EP study.

I am concerned if this could be hereditary because I have 3 grand-children who run cross-country.

My grandmother had seizures and died at a young age, but at that time they thought it was epilepsy.  
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1807132_tn?1318747197
I sent you a pm on this based on your other post I wasn't able to access but wanted to add that you may want to check into Dysautonmia.  If your family has a history of seizures it could be something in the brain that is inducing your heart rhythm issues though in general pvc and vt would not cause seizures.  It may cause you to pass out but I have not heard of them instigating seizures.  Considering your grandmother may have had epilepsy I would consider having your grandchildren tested just to be safe but I don't know that the heart is necessarily related to the condition.  And again, to stress what I said in the pm, in an otherwise healthy heart pvcs are not a threat, even the very short runs of vt that you are having though you may want to consider an ep study to make sure there isn't any sort of a block at a high heart rate but all in all in my frank opinion, the low amount you have seems to indicate it may be a bit tricky getting them mapped in the study.  It is an expensive procedure to go in without pretty good odds but you also have a right to try if you'd like since you do tend to fall into vt pretty consistently as you reach a certain heart rate.  That may indeed help in the study.  Well take care. I do hope you can get to the bottom of this but just for your peace of mind if your heart is healthy it is not likely the vt will be of any danger to you since your episodes are so short lived.  I would confirm this with the doctor but in general in a healthy heart odds are you will die of something other than the heart.  Just be mindful if new or worsening symptoms arise and go back to see your doctor.  Take care.
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1807132_tn?1318747197
I will also add that you may want to discuss with your doctor about any physical exertion and if you should avoid it at this point since you do have a tendency to fall into vt.  I think it might be prudent to get that assessed.
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