FAQ - arrhythmia, sinus
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What is and are the cause of Sinus Arrhythmia?

My doctor told me that I have Sinus Arrhythmia. Im 18 years old and have absolutely no idea what this is. Can anyone help me out and tell me what it is and what causes it?

Sinus Rhythm is the normal rhythm for a heart, sinus arrhythmia means that your heart is beating normally in all ways except that it is irregular, usually only slightly irregular, and usually it is just speeding up and slowing down a little. It is completely normal for a young adult to have sinus arrhythmia, especially a female. It can be cause by caffeine, stress, or just by your breathing (when you inhale, your heart speeds up slightly, while exhaling causes it to slow down a little). Sinus arrhythmia is a NORMAL variant for you and is considered to be "WNL", within normal limits. I'm not sure why your doctor even bothered to mention it. Were you having chest pain? He/she might just be trying to give you some sort of explanation. There isn't usually a treatment or medication for sinus arrhythmia. It won't hurt or damage your heart. Bottom line, don't worry about. You are okay!

Good luck!  (+ info)

Anyone familiar with respiratory sinus arrhythmia in the heart? Is this normal?

Last night I got really anxious for some reason and I felt my heart beating to how I breathed. For example I would breath out and it would slow down, then I would breath in and it would go fast for 3 or 4 beats then slow down as I exhaled. a month ago I wore a 24 hour holter monitor and I experienced this during the test and everything was normal. So what is this and is this normal in everyone?

Respiratory sinus arrhythmia is exactly what you have described and it is a normal phenomenon. It is more prominent in younger individuals. The heart accelerates when you breathe in as more blood gets into your lungs than the rest of the body with each heart beat. This is a compensatory mechanism to increase the supply to the rest of the body. When you breathe in, the lungs expand due to the negative pressure in the chest (thoracic) cavity. This causes more blood to be sucked into the lungs situated within the chest cavity. When you breathe out, the negative pressure disappears and the lungs are squeezed out so that more blood reaches the general circulation for every beat. So in response to this heart rate falls. Hence respiratory sinus arrhythmia is mainly to keep the blood supply to the rest of the body uniform.  (+ info)

anyone that knows anything about a sinus arrhythmia?

my doctor said i most likely have a sinus arrhythmia. 16, he said it's normal for people my again to have one.
but is it going to stop me from doing sports?
how long do these things usually last? or will i always have to live with this?
is there any treatment for them?

iits normal. do what you have to do hun. sinus arrhythmia is nothing. its just increased heart rate during inhalation and decreased heart rate during exhalation  (+ info)

In my anatomy lab I got an ECG done, my professor said I had a sinus arrhythmia...?

Is this something I should be worried about? I have had two previous ECGs in the ER and in a walk in clinic and no one said anything about an arryhthmia. Do I need to be worried about working out or doing cardio exercise? I have always been in the gym, so I have never had any previous problems.

nothing to be concerned about

Sinus arrhythmia: The normal increase in heart rate that occurs during inspiration (when you breathe in). This is a natural response and is more accentuated in children than adults.  (+ info)

Sinus Arrhythmia in eating disorders?

Do eating disorders cause sinus arrhythmia?
If they do, what's the reasoning behind it and what typically happens when a disordered person reaches that stage?

  (+ info)

Question about sinus arrhythmia?

How do you describe a sinus arrhythmia and what does it signify?

The normal increase in heart rate that occurs during inspiration (when you breathe in). This is a natural response and is more accentuated in children than adults.

The "sinus" refers to the natural pacemaker of the heart which is called the sinoatrial (or sinus) node. It is located in the wall of the right atrium (the right upper chamber of the heart). Normal cardiac impulses start there and are transmitted to the atria and down to the ventricles (the lower chambers of the heart).

Sinus tachycardia refers to a fast heartbeat (tachycardia) because of rapid firing of the sinoatrial (sinus) node. This occurs in response to exercise, exertion, excitement, pain, fever, excessive thyroid hormone, low blood oxygen (hypoxia), stimulant drugs (such as caffeine), etc.
The lack of normal sinus rhythm is an arrhythmia, an abnormal heart rhyt.

Sick sinus syndrome, also called Bradycardia-tachycardia syndrome is a group of abnormal heartbeats (arrhythmias) presumably caused by a malfunction of the sinus node, the heart's "natural" pacemaker.Sick sinus syndrome is a relatively uncommon syndrome. It can result in many abnormal heart rhthyms (arrhythmias), including sinus arrest, sinus node exit block, sinus bradycardia, and other other types of bradycardia (slow heart rate).

Ciao bella  (+ info)

Sinoatrial Arrhythmia or Sinus Arrhythmia?

Now i am doing a research project on Sinoatrial Arrhythmia and it is something i do have. However i am having a very hard time finding anything out specifically about it. I also have been brought to attention that it is also called Sinus Arrhythmia. If anyone can confirm this or give me some very specific information i would be very grateful.

Sinus Arrhythmia Summary

Description: Irregular HEART RATE caused by abnormal function of the SINOATRIAL NODE. It is characterized by a greater than 10% change between the maximum and the minimum sinus cycle length or 120 milliseconds.

Also Known As: Arrhythmia, Sinus; Arrhythmia, Sinoatrial; Sinoatrial Arrhythmia; Arrhythmias, Sinoatrial; Arrhythmias, Sinus; Sinoatrial Arrhythmias; Sinus Arrhythmias  (+ info)

What is sinus bradycardia and arrhythmia? Is it serious?

Sinus bradycardia = regular heart rate, below 60 beats per minute.
Normal sinus rhythm = regular heart rate, between 60-100 beats per minute.

Arrhythmia: heart rate that is too fast or too slow, either being regular or irregular (there are dozens of types of arrhythmias).

Most athletes have bradycardia because their heart is strong and can pump more effectively (and therefore, it doesn't need to beat as fast to get the job done). Bradycardia usually isn't a problem for young, healthy individuals.

However, you'd have to ask your doctor on whether or not it is serious. For some people, it is normal. With all the different types of arrhythmias, its hard to say if it is serious. There are lethal arrhythmias, in which you would not be alive right now, and there are normal variances of arrhythmias. Only your doctor or cardiologist could tell you the seriousness of the arrhythmia.  (+ info)

Sinus Arrhythmia?

I am overweight & have been working out very hard to lose weight. I have a mild pain in my heart since 2 days so i took an electrocardiogram. It says 'sinus arrhythmia - rate 49-76. Consider left atrial abnormality '. What does it mean? The cardiologist its fine but i am not convinced.

Do you have high blood pressure? Often this is asociated with a left atrial abnormality. It just means the size of a part of your heart is slightly larger than normal. Sinus arrhythmia is just the natural pacemaker of your heart, and your pulse rate was within normal range.

Maybe you are pushing yourself too hard, chest pain is often a sign of overdoing it if you have been checked out and have no immediate cardiac danger.  (+ info)

Is a sinus tachycardia a type of supraventricular tachycardia?

I have regular sinus tachycardia, but my cardiologist mentioned that I do NOT have any sort of arrhythmia of any kind. He previously gave me metoprolol, which didn't help much. Later he gave me metoprolol tartrate and it has been effective in slowing my pulse even if I take 15 mg (1/2 a tablet) a day. Do I have any sort of supraventricular tachycardia?


well technically sinus tachycardia is supraventricular tachycardia. the only difference is that with supraventricular tachycardia you do not see the p waves. the p waves are hidden in the t waves. but in sinus tachycardia you can see the p waves. let me summarize it like this. a sinus tachycardia will always be a supraventricular tachycardia but a supraventricular tachycardia will not always be a sinus tachycardia  (+ info)

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