Can beta blocker prevent vF or sudden cardiac arrest?

Yes. Beta blockers are commonly used to decrease the frequency and severity of ventricular arrhythmias. Depending on your situation (state of your heart, e.t.c.), more testing, different medication, or even a defibrillator may be needed.

Related Questions

How can I prevent going into a sudden cardiac arrest?

Lifestyle. Good diet, no smoking and exercise. But also one has to take into account one's genetic predisposition for having a cardiac risk. That's why its important to have check-up and have you doctor grade/evaluate your risk for heart disease. Read more...
Too broad... Too broad of a question. Healthy life style and not smoking helps. If you have a weak heart or have an electrical abnormality your doctor would recommend electro physiologic study and ablation or defibrillator placement. Talk specifically with your doctor if you have reason to believe you are at risk of cardiac arrest. Read more...

What can I do to prevent a sudden cardiac arrest?

Sudden Cardiac arres. See a cardiologist. Particularly if there is a strong family history. Sudden cardiac death can result from a number of conditions. Read more...

I'm really afraid I may get sudden cardiac arrest. What can I do to prevent that?

Cardiac arrest. You are 29 year old probably very healthy. You have no reason to think of a heart attack. So just live a healthy life. If you still have these jitters see a doctor for your anxiety. Read more...
Several things. First get a check-up and make sure you are not at risk. At your age the risk factors are family history and having certain lipid disorders that elevate your cholesterol and triglycerides. This is why arthur ashe had a heart attack at a young age although he was physically fit. Read more...

Can an electrocardiogram prevent sudden cardiac arrest in young teenagers/adults who die during marathons?

Maybe. valuation to prevent said nothing athletes can be done by an exam by my making position and or cardiologist and echocardiogram and EKG along with a family history can help identify some of the risk factors . I doing these things this can decrease some of the risk of sudden death by knowing some of the high-risk patients. Read more...
Prevent sudden death. There are 2 main reasons young athletes suffer sudden death: arrytmias, which risk may show on an ECG and anatomical abnormalities such as IHSS (Idiopathic hypertrophic subaortic stenosis) or aberrant coronary arteries, which may show on an Echocardiogram. Some phycisians think both tests should be done to extreme athletes, prior to participation. Read more...
No. Deaths in triathlons are mostly from drowning. Deaths in distance runners are mostly from electrolyte troubles. Sudden death warnings on EKG include long QT and Brugada which seldom kill during exercise. I would trust history and auscultation (for HCMP, etc) for warnings and think EKG offers less yield. . Read more...
Screen test. ECG is used because it is relatively inexpensive. We have no good cost effective screening test. Cardiac arrest is rare when compared to the numbers of exercising population. Tests become more effective when a specific question within the effectiveness of the test are the reason for the test. Read more...
Maybe. An EKG can't prevent it but it may help find suggestive findings that put one at high risk and some communities are implementing these screening tools to look for Brugada, Long QT, LVH, etc, which are the more common threats. Read more...

What can cause sudden cardiac arrest in young people?

Abnormal rythm. Cardiac arrest in young people is most commonly cause by an abnormal rhythm that originates from the pumping chamber of the heart (ventricle). Heart attacks are a rare cause for cardiac arrest in young people. Read more...

Does anxiety usually precede? Having a sudden cardiac arrest?

Not if it's... ...Truly sudden. If the arrest is due to a heart attack, then yes, there will be anxiety and probably pain as well. Read more...
Sometimes. Patients who are periarrest - about to arrest - sometimes become anxious / agitated. Sometimes they develop an impending sense of doom. This is all due to worsening perfusion (the delivery of oxygen and nutrients). Their blood pressure might be low, the oxygen in their blood might be low, their blood might turn acidic. The term some people use for this chain of events is 'circling the drain'. Read more...