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28/04/2009 8:04:24 PM
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stu
Posts 11
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Hi all, does anyone know much about a heart condition known as svt? (supra ventricular tachycardia) I just want to know if many people have known people with it and how hard they train with it. I have had the opp to fix it but still get it from time to time. Docs have basically said just monitor it and we will see you in 2 years to see how I am going. It does not create any problems for me other than the racing feeling. Just throwing the feelers out there to see if anyone knows much about it.
Thanks
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28/04/2009 11:16:35 PM
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Michael Warner
Posts 122
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Hi Stu, my mother gets attacks of tachycardia, probably as a complication of type 1 diabetes, but I don't know what kind it is, and she's not an athlete. It usually occurs at night, and she takes daily medication which reduces the frequency and severity of the episodes, since they could potentially be fatal.
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29/04/2009 8:32:33 PM
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Steve Moss
Posts 5
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Hi Stu, I have the same condition. Mine is call Wolff-Parkinson-White Syndrome. I get 2 -3 episodes a year. They come on at any time irrespective of exercise. I have had two episodes while training on the bike, one just recently. Have also had it occur while in the shower. The specialist gave me some manouvers to bring the heart back to normal. The one that works best for me is to lie down and then stand up quickly. I assume the op you had was ablation of an area of the heart that triggers the rapid heart rate. My heart rate has sat at 237 on the monitor during these episodes. When you say you get the "racing feeling" is your heart actually racing if you take your pulse? To answer your question I train hard especially on hills but will back off before falling off. Thats why I could never race.
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29/04/2009 9:05:28 PM
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stu
Posts 11
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Thanks for the replies. Yea I had the ablation but at the time they could not trigger it so nothing could be done. When i feel the racing I can feel my pulse go crazy. When in hospital it only went to around 185 and I have never seen it over 200. Mine tends to come and go, I have just had my first one in around 4 months. The stress test I had was around 18 minutes and everything went fine. Apart from making me a little nervous at times when pushing hard I have not let it really slow me down. I just find it annoying and frustrating and would like it fixed. A friend told me he read in a mag somewhere Stuart Ogrady has had it at some stage, would love to know what treatment those guys get.
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30/04/2009 11:08:31 AM
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The Cheez
Posts 23
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Hey Stu - that sounds very similar to what I had happen several times last year. On about three occasions my pulse would go ballistic. And this lasted for about 6 - 8 hours and it always happened at night. I ended up seeing a specialist because I was worried that if I over-exert myself I might just drop dead. I had a halter monitor applied however it was inconclusive because I naturally did not have an 'episode' while wearing it. He suggested that I may have Cardiac Arrhythmia and assured me that exercising won't cause me any related harm. Of course, if you don't see me post a time on C2M for a period of 2 months or more, then I'm probably dead and the doctor lied!
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30/04/2009 1:55:48 PM
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david holden
Posts 10
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Not all tachycardias are the same. The best advice would be to seek medical review, particularly cardiologcal review.
Talk to them about training and races and what and is not desirable. Most are benign. But they should all be checked out.
By the way, SVT and WPW although both producing a tachycardia, are very different.
And yes, it sucks when the Halter monitor catches bugger all.
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1/05/2009 9:33:29 PM
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Marty Muller
Posts 3
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I get these as well and have done for 30 odd years. Halter tests have caught some episodes and just indicated an additional trigger point on the heart which sometimes short circuits with the main trigger point. Specialists have discounted RF ablation as unneccessary as the palpitations cause no other problems. Since cycling I don't seem to have as many episodes, but having said that had three episodes during the one ride the other day with the heart rate monitor going up to 220. They longest only lasted a couple of minutes and I didn't bother stopping at all, if they do last any longer I usually stop for a bit and also carry out a vagal manoeuvre which usually stops the palpitations (In my case bending over and touching my toes works best)
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3/05/2009 10:59:16 AM
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Steve Moss
Posts 5
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I'll try the toe touching technique. Lying down on the side of the road is not a good look. People stop and ask if I am OK. Very nice of them though.
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3/05/2009 2:15:12 PM
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Marty Muller
Posts 3
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I can well understand your concern about the look of lying down. Sometimes with the touching the toes manoeuvre I find I have to rest for a few minutes first to let the underlying heart rate drop a little before it will work, but it does always eventually work. I had one trigger off on a ride up Old Willunga Hill this morning but it only lasted about 10 seconds.
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24/07/2011 9:57:07 AM
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Tony Jennings
Posts 1
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Giday, I have just joined this site, this is my first post.... Hope you blokes are still alive. It's 2years since this thread was started, so I hope you have had some answers since then. I have only been cycling seriously since 2006, though I have cycled all my life as well as many other sporting interests , after having several heart attacks and a double heart bypass at 43 years of age, cycling was the fitness activity that I found the best for me as I monitored my rehab phase. So I have learnt a little about cardiac issues along the way. SVTs can be deadly, can be a symptom of cardiomyopathies that can drop you in an instant. holter testing is not that useful as the incidence ofSVT can be very spread out, weeks, months , years .... Make sure you monitor other symptoms, like dizziness, fainting, swelling..... They can all give clues. I also belong to a web forum called cardiac athletes, there is a wealth of information through the members of that site about all things cardiac and most of it in relation to athletic activity. We have many cyclists as members too.
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28/07/2011 8:28:05 PM
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RIchard Hillock
Posts 2
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Hi , I am a cardiologist with subspecialty interest in rhythm problems in Adelaide and I saw the thread when I signed into night. I thought that even though the thread was 2 years old that I would add a bit of a summary for anyone who might look.
Supraventricular tachycardia (SVT) is a general term for any rhythm over 100 beats per minute that comes from the top chambers of the heart. They are usually benign and require treatment only when they cause symptoms. The exception to the rule is Wolff-Parkinson-White syndrome (WPW) which may be risky if it causes very fast rates which can lead to blacking out. If you have WPW or symptomatic rapid heart rates I would suggest you get reviewed by a heart rhythm cardiologist (Cardiac Electrophysiologist).
Tony's comments sounds more like a rhythm that comes from the bottom chambers (ventricles) called ventricular tachycardia. This may well be life threatening especially in the setting of a problem with the heart muscle (cardiomyopathy) and certainly requires specialized care and guidance about the advisability of exercise.
A good website is link
Simple ways to slow the heart rate down during the attack are: drinking an icy cold drink quickly, straining like you are constipated on the toilet, pressure on the carotid artery on one side of the neck (not both sides at the same time!), bending over, and coughing may help in about 30% of people and worth trying.
In general terms; if you are worried - get it checked out.
Cheers and happy riding.
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