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EF 25%
My brother has been in aFib for 5 years, and just had another episode recently and was hospitalized. What is EF and he is at the 25%, how bad or dangerous is this for a 49 year old male?  He is approx. 350 pounds and stands 6'1".  Please help me try to understand his conditon.  He is to have a cardio ablation in April.
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367994 tn?1304957193
When the EF (ejection fraction indicates the amount of blood pumped with heartbeat), it almost always is the result of a heart wall impairment.  A damaged heart wall is unable to contract forcefully and as a result a low EF.  Normal EF is 50 to 70%.

Damaged heart walls can be the result of a prior heart attack that harmed heart cells.  Heart cells can be damaged due to toxins (alcohol, drugs medication), due to blocked vessels, prior illness, etc.

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