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Doctor insights on: What Are Differences Between Bradycardia And Tachycardia

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What are differences between bradycardia and tachycardia?

What are differences between bradycardia and tachycardia?

Fast versus slow: Bradycardia & tachycardia just mean slow & fast heart rate, respectively. Each does not necessarily indicate a problem and can be normal & appropriate. For example, sinus tachycardia is a normal response to exercise or fear. If your hr does not increase with exercise, that can be a major problem. Also, bradycardia during rest (e.g., during sleep) can be normal too, especially in an athlete. ...Read more

Dr. Kerrie Pinkney
335 Doctors shared insights

Slow Heart Rate (Definition)

Slow heart rate, also called bradycardia, is defined as a resting heart rate (pulse) less than 60 beats per minute. Having a heart rate less than 60 is not necessarily abnormal. In fact, people in good cardiovascular shape have a low heart rate. People with certain heart conditions may take medications which lower the heart rate as one of ...Read more


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What risks are attributed to untreated bradycardia or tachycardia?

What risks are attributed to untreated bradycardia or tachycardia?

It depends: In some cases, these can be normal states (an athletic person with bradycardia) or due to another condition (tachycardia with overactive thyroid, too much alcohol, or anemia) that needs to be treated. Otherwise, either can cause dizziness or fainting, fatigue, and inadequate blood flow (which can cause heart damage or even a stroke). The safest approach is treatment. ...Read more

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What risks are attributed to bradycardia or tachycardia left untreated?

What risks are attributed to bradycardia or tachycardia left untreated?

Depends: Asymptomatic bradycardia is not associated with any risk usually, typically athletes have profound bradycardias and it is a sign of their fitness. Tachycardias when left untreated for an extended period of time (dependent on the rate and the age of the person) however can lead to a weak heart. This condition is usually reversible and is called tachycardia-induced cardiomyopathy. ...Read more

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What might lead to tachycardia when standing and bradycardia when laying down?

More data needed...: I would be interested to know what the actual heart rates were when you stood. It would also be important to know if you had a blood pressure change when you stood, and if you are becoming dizzy with standing. Possible explanations for this scenario might be dehydration, medication that causes low blood pressure, or dysautonomia (e.g., pots). Recommend discussing this with your physician! ...Read more

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Is it normal to have tachycardia while standing and bradycardia once I lie down?

Orthostatic: Doctors & nurses check vital signs (blood pressure & heart rate) in lying, sitting, & standing (orthostatic) positions to assess if whether a patient's blood volume is decreased, eg. From dehydration or from bleeding. Other factors can also influence the orthostatic response, including normal and abnormal ("POTS") reflexes. For help with your own situation, get a cardiology consult on HealthTap. ...Read more

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For 2.5 years have suffered with tachycardia daily/nightly. Past two weeks have had bradycardia (as low as 38bpm). Strange? What can cause this?

For 2.5 years have suffered with tachycardia daily/nightly. Past two weeks have had bradycardia (as low as 38bpm). Strange? What can cause this?

Brady/tachy: Details including ECG matter in differentiating several potential causes, you are strongly urged to further evaluation ...Read more

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Hyperkalemia leads to bradycardia or tachycardia?

Hyperkalemia leads to bradycardia or tachycardia?

Electrolytes: Hyperkalemia can caus several ECG abnormalities. First one may see "peaked t waves". Ventricular ectopic beats (pvc's) as well as tachycardia may develop. If untreated the rate can slow and a "sine wave pattern" which is a wide slow wave form that is a pre-terminal rhythm. Hyper kalmia is a medical emergency that needs to be treated rapidly. ...Read more

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Alternating tachycardia and bradycardia in anorexia, should I be concerned?

Alternating tachycardia and bradycardia in anorexia, should I be concerned?

Tachy/brady: Alternating resting tachycardia/bradycardia is not normal. You should have your doctor investigate to see what could be going on. ...Read more

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What are the risks of untreated bradycardia or tachycardia?

What are the risks of untreated bradycardia or tachycardia?

Depends: Depends on how fast or how slow, the cause for the abnormal rate and whether or not it is causing any symptoms. Both abnormally slow and fast heart beats can cause congestive heart failure and syncope (fainting). Persistent fast heart beats can cause weakness of heart muscle referred to as tachycardia induced cardiomyopathy. ...Read more

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Can Huntington's disease cause tachycardia and bradycardia?

Can Huntington's disease cause tachycardia and bradycardia?

See Below: HD is an inherited progressive neuro degenerative disorder that affects your movements, causes psychiatric problems, and dementia. I do not believe that it is associated with tachycardia or bradycardia. Hope this helps. ...Read more

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Is sharp, occasional back pain a concern with a person with tachycardia and bradycardia? Diagnosed with IST but now presenting with slow HR as well.

Is sharp, occasional back pain a concern with a person with tachycardia and bradycardia? Diagnosed with IST but now presenting with slow HR as well.

Not necessarily: You have to take that painful experience into context - is there a reason to associate the back pain with your heart condition? Were you exerting yourself physically at the time? If the answers are yes, go see a cardiologist for a stress test ...Read more

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If you have arrhythmia and tachycardia, can you also have bradycardia?

If you have arrhythmia and tachycardia, can you also have bradycardia?

Brady/tachy: There is a common syndrome called brady/tachy syndrome also called sick sinus syndrome which has both tachy and bradycardia as parts of the problem. ...Read more

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Usually have bradycardia, but starting 2 weeks ago started getting a higher resting pulse with occasional bouts of tachycardia. What causes this?

The heart rate is: Variable and dependent on many different physiological factors including the medications you are taking. If your resting heart rate is between 40 and 80 and you are not dizzy, short of breath or having chest pain it is normal and physiological. ...Read more

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I go from tachycardia of 120-160 to bradycardia 49bpm. What could cause these huge alterations in heart rate? Always at rest.

I go from tachycardia of 120-160 to bradycardia 49bpm. What could cause these huge alterations in heart rate? Always at rest.

Multiplr issies: Cardiac irregulariities must be seen and checked with EKGs, Holter monitoring and blood tests- multiple contributing issues- address with your cardiologist. ...Read more

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I have a pacemaker for bradycardia but over the past two months my pacemaker has been reading a high rate of atrial tachycardia should I be worried?

I have a pacemaker for bradycardia but over the past two months my pacemaker has been reading a high rate of atrial tachycardia should I be worried?

Monitor: To know what your pacemaker is recording, you must be seeing your doctor to have the device interrogated. You should ask your doctor the meaning of the rhythms that the device is recording and whether anything else is needed. ...Read more

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Can having autonomic dysfunction and taking 20 mg Paxil (paroxetine) be dangerous? Have problems with bradycardia and tachycardia. Got effect of Paxil (paroxetine) after 5 min!

Yes trouble: The effects on blood pressure have been reported to be inconsistent.

Cardiovascular side effects have frequently included palpitation (2% to 3%), vasodilation (2% to 4%), hypertension (2%), and tachycardia (including torsade de pointes). Bradycardia, hematoma, hypotension, postural hypotension, syncope, angioedema, angina pectoris, nodal arrhythmia, atrial fibrillation, bundle branch block, . ...Read more

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Male 22. Postural orthostatic tachycardia syndrome. Resting hr 50-70. Need midodrine 2.5 will it cause bradycardia bad?

Slow pulse is rare: More common side effects include blurred vision, cardiac awareness, headache, pounding in the ears. It is good that you are attentive to side effects. Report intolerable effects to your prescriber. Hoping you have good relief. ...Read more

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14 day loop results states tachycardia up to 140, bradycardia 42 bpm, ventricular ectopic complexes, supra ventricular ectopic complexes and an atrial couplet. Should I be worried?

14 day loop results states tachycardia up to 140, bradycardia 42 bpm, ventricular ectopic complexes, supra ventricular ectopic complexes and an atrial couplet. Should I be worried?

Arrhythmias: You should be talking to your doctor about the situation to get more information. The rhythms alone don't necessarily imply something 'bad'. On the other hand if you were entirely normal they wouldn't be there. The rest of your condition is what tells you whether you should be worried. Your doctor is best positioned to answer that question. ...Read more

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Halter monitor results say sinus bradycardia to sinus tachycardia with sinus arrhythmia. Should I be concerned?

Halter monitor results say sinus bradycardia to sinus tachycardia with sinus arrhythmia. Should I be concerned?

From your: Description this sounds like a normal Holter monitor for a 42 year old woman. It would be best to discuss this with your health care provider as he/she will be able to place these findings in context with your clinical condition and symptoms. ...Read more

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Prescribed digitek (digoxin) for tachycardia from pots syndro, also have bradycardia with RHR 40s at times. Scared to take it. Lowers heart rate how much? Safe?

Prescribed digitek (digoxin) for tachycardia from pots syndro, also have bradycardia with RHR 40s at times. Scared to take it. Lowers heart rate how much? Safe?

Digoxin: You should see your cardiologist who prescribed Digitek (digoxin) and have them evaluate you. You may want to have your Digitek (digoxin) levels checked as well. HR in 40s is low and may make you feel dizzy. I would see the cardiologist asap. ...Read more

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Please, what is the cause of alteration between bradycardia & tachycardia+bounding heart, +tired, had sleep apnea before&moderate pulmonary hypertension?

Please, what is the cause of alteration between bradycardia & tachycardia+bounding heart, +tired, had sleep apnea before&moderate pulmonary hypertension?

Heart rhythm: You are describing a heart rhythm disorder that should be evaluated. Atrial fibrillation may be at cause except that you are a little too young. See your family doctor or cardiologist asap. ...Read more

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Short PR interval no delta wave, short paroxysmal aFib, IRBBB, different types of extrasystoles and tachycardias plus night bradycardia. Diagnosis?

Short PR interval no delta wave, short paroxysmal aFib, IRBBB, different types of extrasystoles and tachycardias plus night bradycardia. Diagnosis?

Lown-Ganong-Levine: Same family as WPW with concern for accessory pathway connecting atria directly to ventricles. BUT unlike WPW, LGL is more benign, and the AV node still possesses decremental conduction. ...Read more

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Is there a difference between bradycardia and sinus bradycardia?

Is there a difference between bradycardia and sinus bradycardia?

Mechanisms vary: Bradycardia simply means slow heart beat. Sinus bradycardia refers to a specific cause for the slow heart beat which is sluggishness of the natural pacemaker cells of the heart (referred to as sinus node). This could be normal in physically fit people or abnormal especially if associated with symptoms of fatigue, shortness of breath or passing out spells. ...Read more

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Can you tell me the difference between bradycardia and sinus bradycardia?

Can you tell me the difference between bradycardia and sinus bradycardia?

Yes I can: Bradycardia means slow heart rate, while as sinus bradycardia means slow rate orginating from the normal site of the heart, callled sinus node. ...Read more

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Does bradycardia progress?

Does bradycardia progress?

Sometimes: It depends on the situation. In young people, it is quite common to have a low heart rate (to a point), mostly due to high vagal tone or a strong parasympathetic nervous system. Most concerning would be if it was associated with dizziness or episodes of passing out. ...Read more

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Can bradycardia cause syncope?

Can bradycardia cause syncope?

Yes: Syncope is loss of consciousness due to transitory decline in blood flow to brain. This can be caused by irregular heart rate or rhythm or by alteration of blood volume or distribution. ...Read more

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Is bradycardia harmful on the body?

Not usually: Only if accompanied by symptoms like enervation, dizziness, shortness of breath. If naturally occurring (no heart rhythm disturbance or medication adverse effect) and no symptoms, probably would simply observe. Otherwise, underlying conditions need to be sought and treated accordingly. Some may require a pacemaker if symptomatic and not responsive to conservative therapy. ...Read more