How can beta blockers cause heart block?

Slowing conduction. In patients with conduction system disease of the heart, beta blockers can slow electrical conduction through the av node so much so as to cause heart block.

Related Questions

Can a healthy 18 year old have heart block? My heart beat is 52 at rest, is this due to the beta blocker I take of could it be heart block? Dangerous?

Unlikely . to have a heart block if you are a healthy young man, however, if you have symptoms you need to be evaluated, also before indulging in any spots on regular basis, better be checked by your doctor first. Beta blockers can slow your heart rate, but why why are you on them? Don't stop on your own, keep the follow up with your doctor, wish you wellness. Read more...

Can taking Propranolol for long time really cause heart block?

Serious Reaction. Heart Block is one of the serious adverse reactions of taking propranolol. This effect could happen at any point, but usually when taking the medication early on. Read more...
Propranolol. There is some indication that using Propranolol in conjunction with other medications like digoxin, verapamil, antiarrythmics, or Diltiazem may cause heart block. However, the literature does not reveal regular reports of heart block from long term use of this medication. . Read more...

Could pericardial effusion cause a heart block?

Pericardial effusion. Pericardial effusion most commonly is associated with faster heart rates as tachycardia compensates to maintaini cardiac output when there is restriction to ventricular filling as there is in large effusions. If the effusion is small, heart rate is likely unaffected. Depending on the cause of the effusion, however, heart block could occur (hypothyroidism), or if vagal reaction occurs. Read more...

Could a pericardial effusion cause a heart block?

Peicardial effusion. Pericardial effusions can be small and not hemodynamicallly significant (inflamed lining) and in such cases they cause pain mostly. If effusion is large and prevents filling of the heart, low BP results. It can occasionally be assorted with slow heart rates (example hypothyroidism), or. When vagal reflexes are stimulated. Read more...

Hr 50 resting and I need to take beta for my arhytmia. Afraid my hr will be too low and my heart will stop. Or get heart block or fibrillation.?

SSS. Normal heart rate at rest is between 60 and 70 beats per minute. In very fit individuals, it may be as low as 40 BPM without any symptoms of weakness or dizziness. Some arrhythmias may cause the hr to vary from very slow to very fast and beta blockers can be used cautiously to help regulate the rate. Sometimes they are uses in conjunction with a pacemaker which allows their use without slowing hr. Read more...

Is heart block caused by medication reversible?

Yes. Generally when the medication is stopped the heart block should resolve. Some of the medications causing AV block include beta-blockers, calcium channel blockers, antiarrhythmics, and digoxin. Read more...
Yes,most of the time. Heart block caused by antibiotics or beta blocker or calcium channel blockers should improve after removal of the offending agent. It is imperative during the waiting time to watch for symptoms of syncope, dizziness and weakness and seek medical attention if any develop. Read more...

Does atrioventricular dissociation cause heart block?

Heart Block. Yes av dissociation can cause heart block, like third degree heart block is complete av dissociation but all av dissociation are not heart block. Read more...