Doctor insights on:
Endurance Running And Atrial Fibrillation
Can a paroxysmal atrial fibrillation and av node reentry tachycardia increase the risk for a heart attack?
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 moreSee 1 more doctor answer
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 moreSee 1 more doctor answer
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 moreSee 2 more doctor answers
Odd SVE from 24 HR Holter Cardio "Not convinced Paroxysmal Afib" short burst of miss beats and strong beat twice in a week from
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
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 moreSee 1 more doctor answer
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
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
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
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
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
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 moreSee 1 more doctor answer
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 moreSee 1 more doctor answer
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