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Includes Expert Content
An_253506 posted:
My friend had a heart attack they told him only 35% off his heart is all thats working how much the the normal heart work, thanks Jeff
cardiostarusa1 responded:
Hi Jeff:

"they told him only 35% off his heart is all that's working"

When doctors use a % as it pertains to the heart function this typically refers to the left ventricular ejection fraction (LVEF), the amount of blood that is forced out of the left ventricle (LV) with each beat, the single-most important clinical indicator of how well the heart is pumping. LVEF can vary from one type of diagnostic imaging modality to another.

Some individuals who have a low (moderate) or a really low (severe) left ventricular ejection fraction (LVEF) feel fine and function well, while others do not.

As applicable, in some cases, along with a doctor recommended/authorized exercise regimen (unless contraindicated), LVEF can be increased, sometimes substantially, by customizing/tweaking prescription drug-therapy (e.g., Coreg, which showed, back in its clinical trial days, that it could boost LVEF in some individuals) and supplemental (complimentary or integrative medicine) therapy, as deemed applicable.

Just one example of complimentary medicine is the use of the supplement Coenzyme Q10 (CoQ10 or ubiquinone, a vitamin-like substance) for heart failure (though currently not scientifically proven, some doctors may advise the patient to give it a try) which may/can (i.e., along with doctor directed prescription drug-therapy, and with the doctor knowing about any supplements being taken) help to improve LVEF in some, with other supplements sometimes added to the mix.

"how much the the normal heart work?"

Cleveland Clinic

Understanding Your Ejection Fraction

Best of luck to your friend down the road of life.

Take care,


WebMD member (since 8/99)



WebMD/Cleveland Clinic

Heart Failure: Living with Heart Failure

Heart Failure Society of America

Heart Failure Stages

(Class I-IV)




The Heart: (Human Anatomy) Pictures, Definition, Location in the Body and Heart Problems

How the Heart Pumps

Animated Tutorial

James Beckerman, MD, FACC responded:
The number 35% refers to the "ejection fraction" - which is the percentage of the contents of the heart's major pumping chamber, the left ventricle, that are "ejected" from the heart with each heart beat. Normal is a range of about 55% to 75%.
tbf524 replied to James Beckerman, MD, FACC's response:
In January, my infraction rate was 8% and on August 22nd it had improved to 12-15 % range. I feel great and work heavy manual labor. (My own stone and block business). I will be getting a Pacemaker on the 23rd of this month.
cardiostarusa1 replied to tbf524's response:

Thanks for posting.

As mentioned previously: Some individuals who have a low (moderate) or a really low (severe) left ventricular ejection fraction (LVEF) feel fine and function well, while others do not.

My father, when he was in his mid 80s, had an LVEF of 15%-18% and was still active, productive (worked full-time, then part-time) and independent.

Take care,


phoenix53008 replied to James Beckerman, MD, FACC's response:
My ejection fraction is around 40-45% and I am on coreg for 1-2 months now at 3.125 mg 4x per day (2 pills 1x at night and 2 pills 1x in the morning.) The dr did an EKG, echocardiogram 2d and 3d ultrasounds, and a heart MRI which show I have a small left ventrical plus a scar on the bottom of my heart and a weak heart that isn't pumping hard enough. In 1 week I am having a heat cath done so we can identify if it's just inflamation from an over active thyroid or my Rhuematoid Arthritis or blockage from a small minor past heart attack. I am a healthy female and only 33 years old and my symptoms began about a year ago or less between the heart, RA, low mid and upper back and neck injuries from a car accident. The over active thyroid has been an issue for 2 years or more. I am so concerned about this all, as I have 3 young boys. What could possibly lead to all this, the heart is my biggest concern now?
cardiostarusa1 replied to phoenix53008's response:

......"or my Rhuematoid Arthritis"

*** Important L@@k Back in the Media about RA ***

Science Daily archives

Mayo Clinic

Rheumatoid Arthritis Patients At Higher Risk For Unrecognized Heart Disease And Cardiac Sudden Death

People with rheumatoid arthritis not only have a higher risk of coronary heart disease than those in the general population, but they have more silent, unrecognized heart attacks and sudden cardiac deaths, according to a Mayo Clinic study published in the February issue of Arthritis & Rheumatism.

Rheumatoid Arthritis Patients Have Double The Risk Of Heart Failure

Mayo Clinic researchers have found that rheumatoid arthritis patients have twice the risk of heart failure, or a weakening of the heart's ability to pump blood, as those without rheumatoid arthritis, according to a new study to be published in the February edition of the journal Arthritis & Rheumatism. About one-third of the rheumatoid arthritis patients studied developed heart failure over 30 years of the disease.

Best of luck down the road of life.

Take care,


WebMD member (since 8/99)

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