Heart Rhythm Community
difference between ST and SVT
About This Community:

Join others experiencing Heart Rhythm issues. Ask a question, join a conversation, share experiences: symptoms, management, and treatment.

Font Size:
A
A
A
Background:
Blank
Blank
Blank
Blank Blank

difference between ST and SVT

can anyone tell me what the difference is, if there is one?
Related Discussions
6 Comments Post a Comment
Blank
Avatar f tn
also, does an to be considered and svt does it have to be brought on by something or last so long?
Blank
221122 tn?1323014865
ST is sinus tachycardia and is a HR of between 100 and 149.  SVT is supraventricular tachycardia and is a HR of 150+. Supraventricular just means that it is originating above the ventricles. If it was in the ventricles, it would be Vtach and that is a lethal arrhythmia.  As for the second part of your question, if you are prone to getting SVT, you may get it from different triggers than someone else.  Sometimes it subsides on its own, but if it doesn't go back to normal or happens a few times, you should see a doctor.  
You actually should see a doc for any SVT when it first occurs.  ST is a more benign rhythm, sometimes brought on by exercise, stress, caffeine, or other things.
Blank
Avatar f tn
when I get mine, my HR doesnt usually go higher than 130ish, so that's why I was asking.  Can a holter monitor show if its ST or SVT? I'm pregnant so can't really go to an EP right now to get the works done from them. What happens to me is my HR races and comes out of know where, sometimes I can feel it coming, other times its like BAM there it goes and most of the time lasts less than a minute a few times has last about 20 minutes or so. How can you tell if its anxiety related or just caused by your heart?
Blank
221122 tn?1323014865
As I said, you don't need a holter to tell if it is SVT.  If you can count it and it is below 150, it is ST.  There is no doubt.  
That being said, you should ask your doctor (your ob is fine) what he/she thinks.  It could be your hormones.  A lot of women have problems like this during pregnancy and your doc should know about it.  No one can tell if it is anxiety until you see a doctor.  
Blank
194555 tn?1264290523
Just bumping for any other info on this.. How do you tell the difference? My episodes have never been caught on a monitor... My heart rate can go up to way over 100bpm something more closer to about 150bpm and flutters every odd beat lasting from minutes to hours!! But thats never been caught.. ? How do we know the difference?
Blank
995271 tn?1463927859
I think trying to judge by rate alone isn't in anyone's best interest.  You can call out some generalities by rate, but I've had rates above 160 that were ST.  ST can be said to be < 160, but I've also read and heard that VT generally falls in this range too.  But then sometimes VT falls into higher ranges + 200.  You can also make some assumptions about how the tach starts and stops too, but there exceptions to every rule.

The best way to know what's going on is to catch it on a holter.
Blank
Post a Comment
To
Top Arrhythmias Answerers
612551 tn?1450025775
Blank
Jerry_NJ
NJ
1807132 tn?1318747197
Blank
MichelleP_3811
Chicago, IL
995271 tn?1463927859
Blank
itdood
PA
Avatar f tn
Blank
CFS56
12492606 tn?1459877633
Blank
researcher09
CA
1423357 tn?1414258965
Blank
tom_h
Central, MA
Recent Activity
1236893 tn?1408490528
Blank
Truth in Olive Oil
5 hrs ago by gymdandee
4760166 tn?1398360913
Blank
The_beat_goes_on commented on This is the song that...
Jun 26
707563 tn?1455827280
Blank
Emily_MHModerator Survey link - https://goo.g... Comment
Jun 26
Heart Rhythm Community Resources
Top Arrhythmias Answerers
612551 tn?1450025775
Blank
Jerry_NJ
NJ
1807132 tn?1318747197
Blank
MichelleP_3811
Chicago, IL
995271 tn?1463927859
Blank
itdood
PA
Avatar f tn
Blank
CFS56
12492606 tn?1459877633
Blank
researcher09
CA
1423357 tn?1414258965
Blank
tom_h
Central, MA