what does EF quantitatively imply for (ranging 50--75)

[amir_aram]

Unlike other cases, Alopathic medicinal doctors define & analyse ejection fraction results through  echo cardiagraphy  QUALITATIVELY   and say 50 --to 75 is a rather good functioning  but alternative/holistic meidicine look at EF results ranging 50 to 75 very differently. what I like to know is what could be the difference between 50 to 55  , 50 compared to 60  and as a result 75 compared to 60.do those figures  ranging from 50 to 75 has meaning by itself ? I appreciate  your help.
Sincerely yours
cyrus

[amir_aram]

I made mistake ...   I am searching materials is correct !!!
Thanks,
Cyrus

[amir_aram]

Thank a lot for being so much responsible to support vauable knowledge in this very issue. I am not searching materials to know the views more regarding alternative /holistic points that deals with qualitatively. I will try to inform you as soon as I got the idea, appreciated.
with regards,
Cyrus

[kenkeith]

What you are asking,  if I understand , what is the significance of any and all differentials metrics within the normal range of the various EF scores from one test to another?  I don't know how the alternative/holitic look at EF results!

But conventional or allopathic medicine may takes into consideration as being normal   any variations and must significantly a measurement above the normal.  The measurement within the range group and outside the range group can be explained by the Frank/Starling law of physics (as an analogy when a hand spring is stretched it recoils stronger, but over stretched it becomes flaccid)  the heart is continuing to have dilatations throughout the cardiac pumping cycle and the role is compensatory to help maintain a balance between right and left side of the heart's blood flow.  The difference relates Frank/Starling law of physics.

If the EF exceeds the upper range, that would indicate the heart may be overcompensating.  If the heart is overcompensating and continuing to dilate, the heart size will continue to dilate (without intervention) to a point where it will lose its contractual strength and the EF will quickly drop to heart failure range below 30%.

So the difference of score within the range is due to compensatory influences, a drop to heart failure range is overcompensation untreated.

[amir_aram]

Thanks a lot for the answering but yet the answer has not quite satisfactory. I know the definition for EF and the whole process . Please do read my question very carefully that  mainly pointed  out to interpret EF values quantitatively as it has been done through alternative/holistic medicine.They do study patients EF variations  any time they measure compared to the previous ones and as a result  any possible  diagnose of heart disfunctioning accomplished.
Sincerely yours,
Cyrus

[kenkeith]

An EF is the measure of the ability of the heart to pump blood into circulation with each heartbeat.  It is an estimate and the range is as you have referenced.  The measurement can be made QUALITATIVELY by fractional shortening that takes into consideration the structual dimensions of the heart chambers and wall thickness.  Also, EF can be measured by the volume of blood pumped with each stroke with an echo. Cath can estimate an unhealthy heart by gradient pressures within the heart. EF is an estimate because the parameters for measurement  are not constant but change as does the heart rate, blood pressure and respiration.

The EF can range from 30 to 50% without any symptoms for some individuals.  An EF below 29% is medically referred to as heart failure.  When the heart fails, the heart receives more blood from the heart than the ability to pump into circulation.  There will/can be suymptoms of shortness of breath, faster heartbeat, fatigue, chest pain, etc.

Hope this helps.