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Doctor insights on: Endurance Running And Atrial Fibrillation

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Fibrillation (Definition)

Fibrillation is the rapid, irregular, and unsynchronized contraction of muscle fibers. An important occurrence is with ...Read more


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Is athletes heart causing my palpitations during exercise? Resting hr 50 ,clear echo and 24hr holter. I do lots of endurance training.

Is athletes heart causing my palpitations during exercise? Resting hr 50 ,clear echo and 24hr holter. I do lots of endurance training.

Pvcs, : Endurance runners can have skipped beats and irregular heart beat such as atrial Fibrilation during or at the end of an exercise bout . They do not usually have any clinical significance except if the runner has a lot of symptoms or interfere with overall performance. ...Read more

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How are atrial fibrillation and atrial flutter different?

How are atrial fibrillation and atrial flutter different?

Irregular/ regular: Heart rythm problem is more unpredictable in a fib. In flutter the are more predictable and regular rate. The treatment approach differs and risk of intracardiac blood clot also in that context. ...Read more

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Atrial fibrilation with left bbb and asthma?

Atrial fibrilation with left bbb and asthma?

Heart and lung: Heart and lung work together, some people develop cardiac asthma if their heart muscle is weak. If asthma existed before the heart issues, they are treated independently. Some heart medications, such as beta blockers, can worsen asthma, some don't. It is a complex issue and needs to be discussed with your doctor. ...Read more

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What is worse: ventricular fibrillation or atrial fibrillation?

Ventricular fib: Vf is worse; it usually causes cardiac arrest which is often fatal. Atrial fibrillation, while not as severe, also has significant health risks. It increases the risk of stroke, which can be disabling or fatal. Additionally, if the af causes a fast pulse for a prolonged period of time, this may lead to weakening of the heart and cause heart failure. ...Read more

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Odd SVE from 24 HR Holter Cardio "Not convinced Paroxysmal Afib" short burst of miss beats and strong beat twice in a week from lifting.Not Afib?

Odd SVE from 24 HR Holter Cardio "Not convinced  Paroxysmal Afib" short burst of miss beats and strong beat twice in a week from
lifting.Not Afib?

Without actually: seeing the rhythm strips in question it is difficult to advise you. Given your history it would not be surprising to find you have atrial fibrillation. Perhaps extended monitoring would be beneficial or implantation of a loop recorder. You wouldn't want your first confirmation that you have atrial fibrillation to be your presentation with a CVA! ...Read more

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What makes atrial fibrillation not immediately life threatening while ventricular fibrillation is?

A circuit breaker: The rhythms in the top chamber during atrial fibrillation can reach and exceed 600 bpm. If this were conducted directly to the lower chamber, it would be as fatal as ventricular fibrillation. However, nature built in a circuit breaker called the av node between the two such that only some of the top chamber heartbeats in fibrillation make it to the bottom chamber. ...Read more

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Heart palpitations and dizziness. Ekg showed- shortened pr interval, and high lateral/lateral repolorization disturbance?

Heart palpitations and dizziness. Ekg showed- shortened pr interval, and high lateral/lateral repolorization disturbance?

R/O LGL Syndrome: The association of tachycardia and a short pr interval on an ekg may indicate an abnormal electrical pathway in the heart that can cause frequent palpitations and a sustained rapid heart rate. There are two syndromes called wolf-parkinson-white(wpw) and lown-ganong- levine(lgl) that are associated with short pr and tachycardia . Medication or ablation can prevent the palpitations and tachycardia. ...Read more

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How much rate atrial fibrillation with slow ventricular ?

Usually < 60-70: Most people, left untreated, have rates between 70 and 150. It's a bit unusual to fall below that without drugs or other treatment. ...Read more

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How does atrial fibrillation with ventricular standstill differ from fine v-fib?

How does atrial fibrillation with ventricular standstill differ from fine v-fib?

AF vs vf: Good question, they could look alike on ECG. Both would also result in cardiac arrest. As no perfusion would result, one would expect AF waves to be less visible than VF very quickly. If arrest had been present for say more than 30sec. , VF would be more likely as the AF waves should likely not be visible. ...Read more

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Can atrial fibrillation with rapid ventricular beat cause ventricular fibrillation?

Can atrial fibrillation with rapid ventricular beat cause ventricular fibrillation?

Not usually: Not typically; however, if you also have an accessory pathway (wolff-parkinson-white syndrome), this is a unique situation where af is known to cause very rapid ventricular activation during af, which can lead to vf. Rapid ventricular response may cause cardiac weakening over time, which in turn may increase the risk of vf. ...Read more

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Can you exercise with atrial flutter?

Can you exercise with atrial flutter?

Yes, but...: Atrial flutter requires medical evaluation and if it is chronic, you may need to be on an anticoagulant. Please consult with your doctor before engaging in exercise to identify the root cause of the flutter. ...Read more

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Atrial fibrillation versus ventricular fibrillation. Causes and cures?

Atrial fibrillation versus ventricular fibrillation. Causes and cures?

VF vs AF: Ventricular is lethal instantly. A fib is not lethal and treated with medications or ablation. ...Read more

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What characterizes arrhythmia during exercise?im a young elite athlete, heart rate seems to rise much quicker than usual.shortness of breath.

What characterizes arrhythmia during exercise?im a young elite athlete, heart rate seems to rise much quicker than usual.shortness of breath.

Exercise and heart: There are several types of heart conditions which might cause exercise-induced arrhythmias. We cardiologists take these seriously because of the concern of complications including fainting or even sudden death. An athlete with a change in exercise tolerance, shortness of breath or chest discomfort exercising, palpitations or fainting should be evaluated by a cardiologist. ...Read more

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Heart beats hard when stand up and then sit down.heart pounding with minimal exertion.18y old.normal echo ekg holter and renal Doppler studies.causes?

Heart beats hard when stand up and then sit down.heart pounding with minimal exertion.18y old.normal echo ekg holter and renal Doppler studies.causes?

Heart pounding: Your normal ekg and echocardiogram are reassuring that you have a normal heart although coronary arteries are not evaluated in those studies. In your case symptoms appear both postural and with exertion. Postural orthostatic tachycardia syndrome, anemia, hyperthyroidism, low potassium or magnesium come to mind. A cardiologist is best qualified to evaluate you and can order the appropriate tests ...Read more

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Does atrial fibrillation with rapid ventricular response cause ventricular fibrillation?

Only in a Very Few: Generally, the answer to this is a very solid "no." this is a rare complication of people with another condition (on top of their afib) called wolff-parkinson-white syndrome (or wpw). In certain patients having both conditions, the top chamber is too-well connected to the bottom and can trigger ventricular fibrillation. ...Read more

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Why do you take betapace, xocor, digoxin, and Coumadin (warfarin) with atrial fibrillation and sinus tachycardia?

Why do you take betapace, xocor, digoxin, and Coumadin (warfarin) with atrial fibrillation and sinus tachycardia?

Prevent stroke: Actually atrial fibrillation and sinus tachycardia are two completely different heart rhythms. None of these drugs would be of any use for sinus tachycardia. In atrial fibrillation, Betapace may restore a normal rhythm. Digoxin can help keep the heart rate down. Coumadin (warfarin) reduces the risk of stroke. Zocor also reduces stroke risk in some patients, but this is unrelated to the atrial fib. ...Read more

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Dr. John Garner
1,840 doctors shared insights

Atrial Fibrillation (Definition)

A quivering or irregular heartbeat that can lead to blood clots, stroke, heart failure, ...Read more