Stroke volume and ejection fraction

Common Questions and Answers about Stroke volume and ejection fraction


Avatar n tn Volume of left venticle after pumping contractions subtracted from volume after filling and that result divided by by filling volume provides the ejection fraction. There is a margin of error of about 5% plus or minus and in absolute terms there is a variation of stroke volume to help maintain a balance of blood flow of the leftside of the heart with the rightside.
1124887 tn?1313754891 Normal LA, RA, LV and RV dimensions and wall thickness, normal valve function. Normal ejection fraction 57%. Aorta abdominalis normal with 17mm diameter. Dx: I49.1 Premature atrial depolarization and F45.3 cardiac neurosis. From what I understand and have read, those results are excellent. However, I think my EF is a bit low. Is this caused by a somewhat poor exercise condition? Can it increase with exercise?
1243196 tn?1526387849 End-diastolic volume = 148 ml End systolic volume = 43 ml Stroke-volume = 105 ml ejection fraction = 71% LV mass = 52 g. RV measurements: End-diastolic volume = 166 ml End systolic volume = 68 ml Stroke-volume = 97 ml ejection fraction = 59%. Result Impression Impression: 1. Normal biventricular chamber size, wall motion and global systolic function. Viability imaging shows faint nonischemic enhancement, which could represent old inflammation, primary cardiomyopathy or fibrosis. 2.
Avatar n tn While a stroke volume of 47 is low this is not a direct measurement from the echo-- it is calculated and if everything else is normal it is unlikely that the symptoms are cardiac.
Avatar n tn i have been suffering from shortness of breath for 5 months.recently i have a echocardiogram. it shows that my stroke volume is 47 ml . is this is a normal value or it is a sign of a heart disease? my ef is 61%.
Avatar m tn An echo calculates heart chamber diminsions and volume of blood pumped with each stroke. The math equation is diastole volume (peak filling) minus systole (volume after pumping) divided by diastole for the percentage. You can calculate your fraction shortening (FS) which is similar to EF but relies on dimensions rather than volume. To calculate subtract systole dimension from diastole dimension and divide by diastole for percentage. FS is an estimate of myocardial contractility.
Avatar f tn But you can google a chart for her age and sex and what her results should be. Her ejection fraction is on the lower end of normal. Well within normal though. That is ( stroke volume/edv)×100. Stroke volume = amount your heart pumps with each beat Heart rate is= beats per minute Qt or CO ( cardiac output)= sv×hr ( so total pumped in 1 minutes) Edv= is end diastolic volume.
1527234 tn?1291771442 In this phase due to F/S phenomonon the ventricular myocardium is no longer able to contract adequately to compensate for the volume overload of mitral regurgitation (volume overload can be do to other causes), and the stroke volume of the left ventricle will decrease. The decreased stroke volume causes a decreased forward cardiac output and an increase in the end-systolic volume dilates left ventricle.
Avatar m tn The volume of blood left in a ventricle at the end of contraction is end-systolic volume. The difference between end-diastolic and end-systolic volumes is the stroke volume, the volume of blood ejected with each beat. Ejection fraction (Ef) is the fraction of the end-diastolic volume that is ejected with each beat; it is stroke volume divided by end-diastolic volume. Normal in a man is 50-68%.
Avatar m tn My ejection fraction is inconsitant, Ranging from a high of 42 in 1979 to a recent low of 16. and yet I play doubles tennis 3 days a weeks for 2 hours with no shortness of breath. Do modest weights, walk a mile a day, 6 foot 2, 195 pounds, 36 waist. I was off meds for 3 days prior to test. Is it possible that attrial fribullation, pvc's can lower my ejection fraction number? I am 74 and feel well. my HDL is 40 , LDL 40 VlDL 8. I take coumadin for attrial fribullation.
Avatar m tn The first stage is to identify the cause. Second, the Cardiologist needs to decide the best options for as much recovery as possible. If the stroke volume has become stable at 25% and reasons are unknown, it is likely through infection and recovery will start when it's under control. Medication is available to make the heart muscle feel more comfortable. Virtually every case of heart failure is different, so the outcome is not possible to state, especially with such little information.
Avatar m tn If your heart chamber sizes are small (and this is a normal variant seen in people) we find the volumes (and thus the ejection fraction) to be less precise. The interpretation of test results like this, in the majority of cases, would be considered fine.
Avatar m tn Stroke volume (SV) depends on body size. A better measure for heart function is ejection fraction which is also measured on echo. How high is yours? If your ejection fraction is normal and the heart relaxes properly between the beats (diastolic function) you don't have heart failure or cardiomyopathy.
Avatar m tn Can and will the ejection fraction improve over time with medicine and exercise? Can a 47 yr old male have open or by-pass surgery with low (20%) ejection fraction and come out with better prognosis of long-term survival? would such procedure improve my ejection fraction? Would a procedure such as E-valve (clipping of the mitral valve through catheter) be of any benefit moderate to severe mitral regurgitation and low EF? Would fixing the mitral valve improve ejection fraction?
Avatar n tn To normally compensate EF increases (range 55-75%) by dilating the LV chamber and that increases contractual strength and blood volume in keeping with physics (FRANK/STARLING mechanism) thereby enhancing performance. The EF usually represents the percentage of blood pumped into circulation with each stroke, but with mitral valve insufficiency there is an amount something less than estimated EF goes into circulation as some blood flows back into the upper chamber.
391561 tn?1227047215 Coreg 25 x2, and accupril (ace inhibitor). Latest echo shows no improvement of ejection fraction. Still 24 % after 8 months on meds. Anyone have any opinion as to chances of any improvement from meds at this point? LV has reduced moderately from 6.94. I believe my heart suffered damage from serious auto accident (BFT). I was hoping for signs of an improvement.
Avatar f tn I had an MI and subsequent CABG x 3 last June. Currently my EF is 40-43% I overall feel well but in the last several months I can't seem to get enough sleep. I worked 8-10hr/day, come home and am in bed by 8-9pm.. Is this normal? My cardiologist doesn't seem to be concerned, should I be?
Avatar n tn my father age is 67 his ejection fraction is 34 and fractional shortening is 17 he has cough not severe and some time he has vomiting 4 to 5 ttimes he has breath shortening also kindly guide me what is dangerous level of ejection fraction and fractional shortening and what is survival rate of such patient