From the Guidelines
A 72% ejection fraction is within the normal range, as defined by the American Heart Association, which states that a normal ejection fraction is between 60% to 75%. According to the study published in Circulation in 2001 1, the ejection fraction is the ratio of LV stroke volume to end-diastolic volume, and a value of 72% falls within the normal range. Some key points to consider when evaluating ejection fraction include:
- The definition of ejection fraction as the ratio of LV stroke volume to end-diastolic volume, as stated in the study 1
- The normal range for ejection fraction, which is between 60% to 75%, as defined by the American Heart Association in the study 1
- The fact that a value of 72% is within this normal range, and therefore, is not typically a cause for concern. It's worth noting that while a value of 72% is within the normal range, it's always best to consult with a healthcare provider to determine the best course of action, especially if symptoms are present. However, based on the evidence from the study 1, a 72% ejection fraction is considered normal.
From the Research
Ejection Fraction Normal Range
- A normal ejection fraction (EF) is typically considered to be between 50% and 70% 2.
- An EF of 72% is slightly above the normal range, but it is not significantly high 2.
Association with Heart Failure
- Studies have shown that patients with heart failure and an EF >65% to 70% may have a higher mortality rate 2.
- However, the relationship between EF and mortality is complex, and other factors such as symptoms, comorbidities, and treatment strategies also play a role [(2,3)].
Hypertrophic Cardiomyopathy
- In patients with hypertrophic cardiomyopathy (HCM), a low-normal EF (50%-60%) has been associated with adverse outcomes, including heart failure hospitalization and cardiovascular death 4.
- However, the prognostic significance of a high EF in HCM is not well established 4.
Clinical Implications
- The clinical implications of an EF of 72% depend on the individual patient's symptoms, medical history, and other factors [(3,5)].
- Further evaluation and monitoring may be necessary to determine the significance of an EF of 72% in a given patient [(6,5)].