Difference between AFIB and SVT

[Guest guest]

Isn't a-fib considered to be an SVT? If not what is the difference

Re: What do you do when you go into AFIB

> Here is a question which I think would be helpful to many of the

new members of this group.

> When you have a lone event afib attack and your heart starts racing-

140+...what does one do to go back into NSR short of going to the ER.

>

> I think the answers to this would be comforting to many?

> Thanks, Ken

Ken, I have a " plan of action " for this that I have discussed with my

doc, and I suggest anyone else do the same.

I take more beta blocker and hole up on the sofa. My heart rate

usually drops in an hour or so. If the afib or multiple ectopics a

minute are still going on after a few hours, I go to her office so

they can do an ekg and see what's happening. If it's at night, I

wait until the next morning unless I have some reason to believe I

need to call teh on call doc. If it's the weekend, I may call the on

call doc in the daytime for advice if it's been going on for awhile.

Invariably the oncall doc's advice for me is to wait it out. I

mostly call for emotional reassurance, if the truth be told.

Only once did I need more attention than that - I was having,

unbeknownst to me, SVT which has more frightening symptoms. In that

case I got the nurse and she mistakenly didn't recognize that

something different was happening, even though I tried to tell her

that. Next time I will be experienced enough to insist on help if

that happens. I foudn out later it was SVT because I happened to be

wearing a monitor at the time.

So I guess what I am saying is a plan of action from your doc and

some experience with all this should tell you what to do.

[Guest guest]

Isn't a-fib considered to be an SVT? If not what is the difference

Re: What do you do when you go into AFIB

> Here is a question which I think would be helpful to many of the

new members of this group.

> When you have a lone event afib attack and your heart starts racing-

140+...what does one do to go back into NSR short of going to the ER.

>

> I think the answers to this would be comforting to many?

> Thanks, Ken

Ken, I have a " plan of action " for this that I have discussed with my

doc, and I suggest anyone else do the same.

I take more beta blocker and hole up on the sofa. My heart rate

usually drops in an hour or so. If the afib or multiple ectopics a

minute are still going on after a few hours, I go to her office so

they can do an ekg and see what's happening. If it's at night, I

wait until the next morning unless I have some reason to believe I

need to call teh on call doc. If it's the weekend, I may call the on

call doc in the daytime for advice if it's been going on for awhile.

Invariably the oncall doc's advice for me is to wait it out. I

mostly call for emotional reassurance, if the truth be told.

Only once did I need more attention than that - I was having,

unbeknownst to me, SVT which has more frightening symptoms. In that

case I got the nurse and she mistakenly didn't recognize that

something different was happening, even though I tried to tell her

that. Next time I will be experienced enough to insist on help if

that happens. I foudn out later it was SVT because I happened to be

wearing a monitor at the time.

So I guess what I am saying is a plan of action from your doc and

some experience with all this should tell you what to do.

[Guest guest]

Isn't a-fib considered to be an SVT? If not what is the difference

Re: What do you do when you go into AFIB

> Here is a question which I think would be helpful to many of the

new members of this group.

> When you have a lone event afib attack and your heart starts racing-

140+...what does one do to go back into NSR short of going to the ER.

>

> I think the answers to this would be comforting to many?

> Thanks, Ken

Ken, I have a " plan of action " for this that I have discussed with my

doc, and I suggest anyone else do the same.

I take more beta blocker and hole up on the sofa. My heart rate

usually drops in an hour or so. If the afib or multiple ectopics a

minute are still going on after a few hours, I go to her office so

they can do an ekg and see what's happening. If it's at night, I

wait until the next morning unless I have some reason to believe I

need to call teh on call doc. If it's the weekend, I may call the on

call doc in the daytime for advice if it's been going on for awhile.

Invariably the oncall doc's advice for me is to wait it out. I

mostly call for emotional reassurance, if the truth be told.

Only once did I need more attention than that - I was having,

unbeknownst to me, SVT which has more frightening symptoms. In that

case I got the nurse and she mistakenly didn't recognize that

something different was happening, even though I tried to tell her

that. Next time I will be experienced enough to insist on help if

that happens. I foudn out later it was SVT because I happened to be

wearing a monitor at the time.

So I guess what I am saying is a plan of action from your doc and

some experience with all this should tell you what to do.

[Guest guest]

Ken,

Afib is a type of SVT. Supra Ventricular means: above the AV node. Other types

of SVT are Atrial Flutter, AV node reentry and Wolff-Parkinson-White syndrome

(WPW).

Here is more info:

a.. Supraventricular tachycardia. This is a burst of rapid heartbeats that

originates in your heart's upper chambers. The bursts usually begin and end

suddenly. Episodes can last seconds to days.

b.. Atrial flutter. As the name implies, the heart's upper chambers flutter,

beating rapidly. Atrial flutter is often associated with damage to the heart

caused by a faulty heart valve.

c.. Atrial fibrillation . This is a very common arrhythmia, affecting mainly

older people. In atrial fibrillation, the heart's upper chambers beat very fast

(300 to 600 beats a minute) and chaotically. The ventricles also speed up,

resulting in an irregular and often rapid heart rhythm.

d.. Wolff-Parkinson-White syndrome. This arrhythmia, named after the

physicians who first described it, is caused by an extra electrical pathway that

develops between the heart's upper and lower chambers. This extra pathway allows

too many electrical impulses to reach the ventricles, speeding up the heart

rate.

e.. Ventricular tachycardia. In this type of arrhythmia, faulty electrical

signals that arise from your heart's lower chambers cause your ventricles to

beat too fast. Ventricular tachycardia is almost always associated with heart

disease or recent heart attack and can deteriorate to the most serious form of

fast heartbeat - ventricular fibrillation.

f.. Ventricular fibrillation. This arrhythmia is considered a medical

emergency. Chaotic electrical signals through your heart's lower chambers cause

your heart to suddenly quiver uselessly and cease pumping. Most people lose

consciousness seconds later and require some type of immediate emergency medical

assistance, such as CPR. Unless the heart is shocked back into a normal rhythm

by a device called a defibrillator, ventricular fibrillation results in sudden

death.

g.. Long QT syndrome. This is an inherited arrhythmia, involving a defect in

the ventricles. QT refers to a pattern seen on an electrocardiogram - a test

that measures the electrical impulses of the heart. These impulses, read from

electrodes attached to the chest, are recorded as waves. The different peaks and

valleys of these waves are designated by letters - P, Q, R, S and T. The Q-to-T

interval represents the firing and resting of the ventricles during each

heartbeat. Doctors measure this interval and can tell if a QT interval takes a

normal amount of time or takes too long and results in rapid heartbeats.

h.. Sick sinus syndrome. If your heart's sinus node isn't firing right, your

heart rate slows down or slows down and then speeds up. Sick sinus syndrome,

which is common in older people, is considered a type of bradycardia. This

arrhythmia sometimes accompanies atrial fibrillation.

i.. Heart block. This arrhythmia occurs when the electrical pathways that run

between your heart's upper and lower chambers and through your heart's lower

chambers become blocked, slowing the transmission of electrical impulses through

the heart. The result is a very slow heart rate (bradycardia).

Dwight

<<Isn't a-fib considered to be an SVT? If not what is the difference>>

[Guest guest]

Ken,

Afib is a type of SVT. Supra Ventricular means: above the AV node. Other types

of SVT are Atrial Flutter, AV node reentry and Wolff-Parkinson-White syndrome

(WPW).

Here is more info:

a.. Supraventricular tachycardia. This is a burst of rapid heartbeats that

originates in your heart's upper chambers. The bursts usually begin and end

suddenly. Episodes can last seconds to days.

b.. Atrial flutter. As the name implies, the heart's upper chambers flutter,

beating rapidly. Atrial flutter is often associated with damage to the heart

caused by a faulty heart valve.

c.. Atrial fibrillation . This is a very common arrhythmia, affecting mainly

older people. In atrial fibrillation, the heart's upper chambers beat very fast

(300 to 600 beats a minute) and chaotically. The ventricles also speed up,

resulting in an irregular and often rapid heart rhythm.

d.. Wolff-Parkinson-White syndrome. This arrhythmia, named after the

physicians who first described it, is caused by an extra electrical pathway that

develops between the heart's upper and lower chambers. This extra pathway allows

too many electrical impulses to reach the ventricles, speeding up the heart

rate.

e.. Ventricular tachycardia. In this type of arrhythmia, faulty electrical

signals that arise from your heart's lower chambers cause your ventricles to

beat too fast. Ventricular tachycardia is almost always associated with heart

disease or recent heart attack and can deteriorate to the most serious form of

fast heartbeat - ventricular fibrillation.

f.. Ventricular fibrillation. This arrhythmia is considered a medical

emergency. Chaotic electrical signals through your heart's lower chambers cause

your heart to suddenly quiver uselessly and cease pumping. Most people lose

consciousness seconds later and require some type of immediate emergency medical

assistance, such as CPR. Unless the heart is shocked back into a normal rhythm

by a device called a defibrillator, ventricular fibrillation results in sudden

death.

g.. Long QT syndrome. This is an inherited arrhythmia, involving a defect in

the ventricles. QT refers to a pattern seen on an electrocardiogram - a test

that measures the electrical impulses of the heart. These impulses, read from

electrodes attached to the chest, are recorded as waves. The different peaks and

valleys of these waves are designated by letters - P, Q, R, S and T. The Q-to-T

interval represents the firing and resting of the ventricles during each

heartbeat. Doctors measure this interval and can tell if a QT interval takes a

normal amount of time or takes too long and results in rapid heartbeats.

h.. Sick sinus syndrome. If your heart's sinus node isn't firing right, your

heart rate slows down or slows down and then speeds up. Sick sinus syndrome,

which is common in older people, is considered a type of bradycardia. This

arrhythmia sometimes accompanies atrial fibrillation.

i.. Heart block. This arrhythmia occurs when the electrical pathways that run

between your heart's upper and lower chambers and through your heart's lower

chambers become blocked, slowing the transmission of electrical impulses through

the heart. The result is a very slow heart rate (bradycardia).

Dwight

<<Isn't a-fib considered to be an SVT? If not what is the difference>>

[Guest guest]

Ken,

Afib is a type of SVT. Supra Ventricular means: above the AV node. Other types

of SVT are Atrial Flutter, AV node reentry and Wolff-Parkinson-White syndrome

(WPW).

Here is more info:

a.. Supraventricular tachycardia. This is a burst of rapid heartbeats that

originates in your heart's upper chambers. The bursts usually begin and end

suddenly. Episodes can last seconds to days.

b.. Atrial flutter. As the name implies, the heart's upper chambers flutter,

beating rapidly. Atrial flutter is often associated with damage to the heart

caused by a faulty heart valve.

c.. Atrial fibrillation . This is a very common arrhythmia, affecting mainly

older people. In atrial fibrillation, the heart's upper chambers beat very fast

(300 to 600 beats a minute) and chaotically. The ventricles also speed up,

resulting in an irregular and often rapid heart rhythm.

d.. Wolff-Parkinson-White syndrome. This arrhythmia, named after the

physicians who first described it, is caused by an extra electrical pathway that

develops between the heart's upper and lower chambers. This extra pathway allows

too many electrical impulses to reach the ventricles, speeding up the heart

rate.

e.. Ventricular tachycardia. In this type of arrhythmia, faulty electrical

signals that arise from your heart's lower chambers cause your ventricles to

beat too fast. Ventricular tachycardia is almost always associated with heart

disease or recent heart attack and can deteriorate to the most serious form of

fast heartbeat - ventricular fibrillation.

f.. Ventricular fibrillation. This arrhythmia is considered a medical

emergency. Chaotic electrical signals through your heart's lower chambers cause

your heart to suddenly quiver uselessly and cease pumping. Most people lose

consciousness seconds later and require some type of immediate emergency medical

assistance, such as CPR. Unless the heart is shocked back into a normal rhythm

by a device called a defibrillator, ventricular fibrillation results in sudden

death.

g.. Long QT syndrome. This is an inherited arrhythmia, involving a defect in

the ventricles. QT refers to a pattern seen on an electrocardiogram - a test

that measures the electrical impulses of the heart. These impulses, read from

electrodes attached to the chest, are recorded as waves. The different peaks and

valleys of these waves are designated by letters - P, Q, R, S and T. The Q-to-T

interval represents the firing and resting of the ventricles during each

heartbeat. Doctors measure this interval and can tell if a QT interval takes a

normal amount of time or takes too long and results in rapid heartbeats.

h.. Sick sinus syndrome. If your heart's sinus node isn't firing right, your

heart rate slows down or slows down and then speeds up. Sick sinus syndrome,

which is common in older people, is considered a type of bradycardia. This

arrhythmia sometimes accompanies atrial fibrillation.

i.. Heart block. This arrhythmia occurs when the electrical pathways that run

between your heart's upper and lower chambers and through your heart's lower

chambers become blocked, slowing the transmission of electrical impulses through

the heart. The result is a very slow heart rate (bradycardia).

Dwight

<<Isn't a-fib considered to be an SVT? If not what is the difference>>

[Guest guest]

> Isn't a-fib considered to be an SVT? If not what is the difference

Ken, my cardio says SVT is a much faster beat that afib and not

necessarily irregular. Certainly on my monitoring ekg, where the

machine labeled it svt, it was very much faster and appeared to be

regular. The symptoms for me were also very different. In afib, I

am short of breath and can't do much ,have to walk slowly, etc. In

SVT I was really scared that I was going to drop on the spot and I

wasn't sure my heart was going to support life, so to speak, although

my cardio later assured me it would in that circumstance.

[Guest guest]

> Isn't a-fib considered to be an SVT? If not what is the difference

Ken, my cardio says SVT is a much faster beat that afib and not

necessarily irregular. Certainly on my monitoring ekg, where the

machine labeled it svt, it was very much faster and appeared to be

regular. The symptoms for me were also very different. In afib, I

am short of breath and can't do much ,have to walk slowly, etc. In

SVT I was really scared that I was going to drop on the spot and I

wasn't sure my heart was going to support life, so to speak, although

my cardio later assured me it would in that circumstance.

[Guest guest]

> Isn't a-fib considered to be an SVT? If not what is the difference

Ken, my cardio says SVT is a much faster beat that afib and not

necessarily irregular. Certainly on my monitoring ekg, where the

machine labeled it svt, it was very much faster and appeared to be

regular. The symptoms for me were also very different. In afib, I

am short of breath and can't do much ,have to walk slowly, etc. In

SVT I was really scared that I was going to drop on the spot and I

wasn't sure my heart was going to support life, so to speak, although

my cardio later assured me it would in that circumstance.

[Guest guest]

ken wrote:

<<In Afib, if the hearts upper chambers beat 300-600 what would your pulse

rate be?. I am trying to understand how to calclate the pulse from such a

high atrial rate.>>

I don't think you can Ken.

The concept of an atrial beat is a bit misleading when you are in AFib.

It does not beat as a single unit. It's much more like a quiver (not at

all efficient at pumping blood!). You can get multiple regions of the

atria all firing at the same time -hence the chaos that is AFib.

The AV node will only allow so many of the signals through to the ventricles

(but unlike atrial flutter it's not a good ratio) so every now and then the

ventricles will fire (in an organised way!) - this is why the ventricular

beat is very often irregular with AFib.

Maura wrote:

<<I am a bit confused. If the pulse rate is the ventricular rate in afib

and a different rate than the atrial rate, does it also apply for a SVT?>>

Pulse rate is ventricular rate. As I understand it (and I could easily be

wrong!) SVT is a tachycardia originating in the top bit of the heart. I

think most (if not all??) are based on some form of re-entry. Some SVTs will

have atrial and ventricular rates the same and others (like yours) will have

different rates.

By far the most important rate to consider is the ventricular rate (pulse

rate or heart rate) - the ventricles are responsible for getting blood round

the body. The ventricular rate is very often the only number you'll be

quoted unless you specifically ask them what the top bit is doing.

<BTW my protocol of the holter also showed a first degree AV block and a

AV re-entry supraventricular tachycardia?>

There are at least 3 types of AV block (you should be able to find a nice

link in the bookmark section). From memory 1st degree block is the least

serious - the AV node doesn't let all the signals through.

AV re-entry means that some of the signals get passed back up to the atria

through the AV node. (I've read this is the most common form of paroxysmal

SVT). I think, with this condition, you have two paths ways through the AV

node and under the right (read wrong!) conditions the signal can be passed

down one and back upthe other - causing a rapid revolving circuit which

leads to the fast rate.

<<I really don't understand the difference between these different types ?

Does anyone know?>>

I should emphasise I'm not a doctor and am recalling what I've read from

books/internet.

Your GP or cardiologists should be able to draw you a picture of your

condition in terms that you can understand - don't be afraid to ask him - he

works for you not the other way round

All the best

--

D (33, Leeds, UK)

Paroxysmal AF for 29 hours every 16 days

[Guest guest]

ken wrote:

<<In Afib, if the hearts upper chambers beat 300-600 what would your pulse

rate be?. I am trying to understand how to calclate the pulse from such a

high atrial rate.>>

I don't think you can Ken.

The concept of an atrial beat is a bit misleading when you are in AFib.

It does not beat as a single unit. It's much more like a quiver (not at

all efficient at pumping blood!). You can get multiple regions of the

atria all firing at the same time -hence the chaos that is AFib.

The AV node will only allow so many of the signals through to the ventricles

(but unlike atrial flutter it's not a good ratio) so every now and then the

ventricles will fire (in an organised way!) - this is why the ventricular

beat is very often irregular with AFib.

Maura wrote:

<<I am a bit confused. If the pulse rate is the ventricular rate in afib

and a different rate than the atrial rate, does it also apply for a SVT?>>

Pulse rate is ventricular rate. As I understand it (and I could easily be

wrong!) SVT is a tachycardia originating in the top bit of the heart. I

think most (if not all??) are based on some form of re-entry. Some SVTs will

have atrial and ventricular rates the same and others (like yours) will have

different rates.

By far the most important rate to consider is the ventricular rate (pulse

rate or heart rate) - the ventricles are responsible for getting blood round

the body. The ventricular rate is very often the only number you'll be

quoted unless you specifically ask them what the top bit is doing.

<BTW my protocol of the holter also showed a first degree AV block and a

AV re-entry supraventricular tachycardia?>

There are at least 3 types of AV block (you should be able to find a nice

link in the bookmark section). From memory 1st degree block is the least

serious - the AV node doesn't let all the signals through.

AV re-entry means that some of the signals get passed back up to the atria

through the AV node. (I've read this is the most common form of paroxysmal

SVT). I think, with this condition, you have two paths ways through the AV

node and under the right (read wrong!) conditions the signal can be passed

down one and back upthe other - causing a rapid revolving circuit which

leads to the fast rate.

<<I really don't understand the difference between these different types ?

Does anyone know?>>

I should emphasise I'm not a doctor and am recalling what I've read from

books/internet.

Your GP or cardiologists should be able to draw you a picture of your

condition in terms that you can understand - don't be afraid to ask him - he

works for you not the other way round

All the best

--

D (33, Leeds, UK)

Paroxysmal AF for 29 hours every 16 days

[Guest guest]

ken wrote:

<<In Afib, if the hearts upper chambers beat 300-600 what would your pulse

rate be?. I am trying to understand how to calclate the pulse from such a

high atrial rate.>>

I don't think you can Ken.

The concept of an atrial beat is a bit misleading when you are in AFib.

It does not beat as a single unit. It's much more like a quiver (not at

all efficient at pumping blood!). You can get multiple regions of the

atria all firing at the same time -hence the chaos that is AFib.

The AV node will only allow so many of the signals through to the ventricles

(but unlike atrial flutter it's not a good ratio) so every now and then the

ventricles will fire (in an organised way!) - this is why the ventricular

beat is very often irregular with AFib.

Maura wrote:

<<I am a bit confused. If the pulse rate is the ventricular rate in afib

and a different rate than the atrial rate, does it also apply for a SVT?>>

Pulse rate is ventricular rate. As I understand it (and I could easily be

wrong!) SVT is a tachycardia originating in the top bit of the heart. I

think most (if not all??) are based on some form of re-entry. Some SVTs will

have atrial and ventricular rates the same and others (like yours) will have

different rates.

By far the most important rate to consider is the ventricular rate (pulse

rate or heart rate) - the ventricles are responsible for getting blood round

the body. The ventricular rate is very often the only number you'll be

quoted unless you specifically ask them what the top bit is doing.

<BTW my protocol of the holter also showed a first degree AV block and a

AV re-entry supraventricular tachycardia?>

There are at least 3 types of AV block (you should be able to find a nice

link in the bookmark section). From memory 1st degree block is the least

serious - the AV node doesn't let all the signals through.

AV re-entry means that some of the signals get passed back up to the atria

through the AV node. (I've read this is the most common form of paroxysmal

SVT). I think, with this condition, you have two paths ways through the AV

node and under the right (read wrong!) conditions the signal can be passed

down one and back upthe other - causing a rapid revolving circuit which

leads to the fast rate.

<<I really don't understand the difference between these different types ?

Does anyone know?>>

I should emphasise I'm not a doctor and am recalling what I've read from

books/internet.

Your GP or cardiologists should be able to draw you a picture of your

condition in terms that you can understand - don't be afraid to ask him - he

works for you not the other way round

All the best

--

D (33, Leeds, UK)

Paroxysmal AF for 29 hours every 16 days

[Guest guest]

Is there anybody in this group who can explain the difference between

these two terms.

Thanks

[Guest guest]

http://home.earthlink.net/~avdoc/infocntr/htrhythm/hrintro.htm

This site explains SVT and A-fib.

Sound a bit different since the ventricular contractions begin in

Sinus Node for the SVT.

> Is there anybody in this group who can explain the difference

between

> these two terms.

>

> Thanks

[Guest guest]

http://home.earthlink.net/~avdoc/infocntr/htrhythm/hrintro.htm

This site explains SVT and A-fib.

Sound a bit different since the ventricular contractions begin in

Sinus Node for the SVT.

> Is there anybody in this group who can explain the difference

between

> these two terms.

>

> Thanks

[Guest guest]

http://home.earthlink.net/~avdoc/infocntr/htrhythm/hrintro.htm

This site explains SVT and A-fib.

Sound a bit different since the ventricular contractions begin in

Sinus Node for the SVT.

> Is there anybody in this group who can explain the difference

between

> these two terms.

>

> Thanks

[Guest guest]

coolsnale wrote (in his own peculiar style)

<<AFIB an SVT are completely different. One is from the

Atrium the other is from the Ventricals.SVT is very

easily managed with drugs or a ICD.Check Medtronics

web site.>>

I continue to wonder in amazement where you get your facts from coolsnake and

I'm still waiting for any urls to support what you post - please enlighten

us. I know your are doing your best to point out that I post rubbish and you

are right in thinking that I'm doing the same to you. As I said in my

previous post I was reluctant to post the message because I didn't want to

add to the confusion. I didn't make the information up off of the top of my

head though and am reasonably confident it has some basis in truth. See the

following references (and please feel free to post any of you own). One

problem about us all trying to become more knowledgeable on a subject is that

if we are not very careful we can make it that much harder for anyone else to

learn the truth. Public forums are great but everyone should be aware of the

rubbish that is posted on them.

Don't believe a word of what either I or coolsnake posts.

from NASPE (North American society of pacing and electrophysiology)

http://www.naspe-patients.org/patients/heart_disorders/atrial_fibrillation/

Atrial Fibrillation (also called AF or A Fib) is a common heart rhythm

disorder caused by a problem in the conduction of electrical impulses in the

upper chambers, or atria, of the heart. A Fib and other rapid heartbeats that

arise in the atria, or in the juncture between the atria and the lower

chambers (ventricles) are called " supraventricular tachycardias. "

Atrial flutter (AFL) is another supraventricular (above the ventricles)

tachycardia (rapid heartbeat) that is very similar to atrial fibrillation.

Instead of many disorganized signals, however, AFL is caused by a single

electrical wave that circulates very rapidly in the atrium.

from oxford concise medical dictionary

supra- prefix denoting above.

from the Maze board

http://members.aol.com/mazern/glossary.htm

supraventricular tachycardia (SVT)

General term used to describe a fast and regular rhythm (greater than 100

beats per minute) that is initiated above the ventricles

from

http://www.txai.org/glossary.html

Atrial flutter - A supraventricular tachycardia with a characteristic

electrocardiographic appearance. It frequently coexists with atrial

fibrillation and is usually associated with structural heart disease.

Atrioventricular nodal reentrant tachycardia (AVRT) - A supraventricular

tachycardia caused by dual conduction pathways within the AV node which have

different speeds of transmission.

Supraventricular tachycardia (SVT) - Arrhythmias caused by electrical events

originating in the atria, i.e. above the ventricles.

from

http://www.photonicd.com/glossary.html

Supraventricular Tachycardia

A tachycardia that originates from the supraventricular region.

Supraventricular tachycardias are usually pathologic tachycardias and include

AV and AV nodal reentry tachycardia. Abbreviated SVT.

from

http://www.guidant.com/condition/arrhythmia/glossary.shtml

Supraventricular tachycardia (SVT)

A tachycardia originating from an impulse arising in any portion of the

atrium, the AV node, or the bundle of His.

and so the confusion continues.....

--

D

[Guest guest]

coolsnake wrote

<<AFIB an SVT are completely different. One is from the

Atrium the other is from the Ventricals.SVT is very

easily managed with drugs or a ICD.Check Medtronics

web site.>>

from the medtronics site (!)

http://www.medtronic.com/corporate/glossary/s.html

supraventricular tachyarrhythmias - Arrhythmias that originate in the upper

chambers of the heart (atria): supraventricular tachycardia (SVT), atrial

flutter, atrial fibrillation.

[Guest guest]

coolsnake wrote

<<AFIB an SVT are completely different. One is from the

Atrium the other is from the Ventricals.SVT is very

easily managed with drugs or a ICD.Check Medtronics

web site.>>

from the medtronics site (!)

http://www.medtronic.com/corporate/glossary/s.html

supraventricular tachyarrhythmias - Arrhythmias that originate in the upper

chambers of the heart (atria): supraventricular tachycardia (SVT), atrial

flutter, atrial fibrillation.

[Guest guest]

coolsnake wrote

<<AFIB an SVT are completely different. One is from the

Atrium the other is from the Ventricals.SVT is very

easily managed with drugs or a ICD.Check Medtronics

web site.>>

from the medtronics site (!)

http://www.medtronic.com/corporate/glossary/s.html

supraventricular tachyarrhythmias - Arrhythmias that originate in the upper

chambers of the heart (atria): supraventricular tachycardia (SVT), atrial

flutter, atrial fibrillation.