Echocardiogram (echo) is an ultrasound of the heart. It does not “tell” the future, but it does answer key questions: how is the pumping force, how the valves are, if there is changes in heart size and if there are findings that explain symptoms such as shortness of breath, tiredness or swelling.
The problem is that the report is often full of technical terms. Here is a guide to understand the most common ones and know when they merit consultation.
The most important
- The echo is used to evaluate structure (cavity size, muscle thickness) and function (pumping and relaxation), in addition to valves and flows with Doppler.
- “Normal” in the report does not always mean “I have no symptoms”; it means that. this test found no relevant structural alterations.
- The findings that most change decisions tend to be: low ejection fraction, moderate/severe valvulopathy, significant expansion, or signs of high pressures.
If you want to see what the study includes and how it is performed: Doppler echocardiogram.
What does an echocardiogram evaluate?
1) Pumping force (systolic function)
The best known measure is the left ventricular ejection fraction (LVEF).
- What it means: what proportion of blood is ejected from the left ventricle with each heartbeat.
- How it is interpreted in general: a “normal” value is usually reported as normal/preserved; when it is decreased, the report usually classifies it as mild/moderate/severe.
If your report shows decreased LVEF and you have symptoms (shortness of breath, tiredness, swelling), it is worth relating it to a diagnosis and plan. Related reading: Heart failure.
2) Cavity size and muscle thickness.
Here we usually find terms such as:
- Dilation (cavity larger than expected)
- Hypertrophy (thicker wall than expected)
What it can mean: is not “good or bad” by itself; it depends on the cause. Hypertrophy, for example, is often related to hypertension of years or increased workload.
3) Valves (and why “puff” appears)
A murmur may be innocent or it may reflect a valve that does not open or close properly.
In the echo, you will see it as:
- Insufficiency (regurgitation)The valve “leaks” a little blood backwards.
- Stenosisvalve opens with difficulty.
A practical point: “mild” is common (especially mild insufficiency) and often only requires follow-up, not immediate treatment. What changes decisions is moderate or severe, or when there are symptoms.
(Interlink “murmur/valvulopathy” I leave it without link because in your brief it says “when it exists”).
4) Doppler: estimated fluxes and pressures
Doppler helps to estimate:
- speed/gradients through valves,
- and, in some reports, estimated pulmonary pressure or indirect data of elevated pressure.
This is interpreted with clinical history and examination; by itself it does not close diagnoses.
5) “Diastolic function” (relaxation of the heart).
Sometimes it appears as “diastolic dysfunction” or “altered relaxation pattern”.
Useful translation: the heart can pump well, but relax worse, which is associated with age, hypertension, obesity and other factors. It is not treated with “an echo drug”; it is treated by correcting the cardiometabolic context and, if applicable, pressure and volume control.
How to read your report without getting lost
Think in 5 blocks:
- Conclusion/Printingis the most important; the main findings are summarized here.
- LVEF / functionnormal vs. diminished.
- Cavities and thicknessdilatation / hypertrophy.
- Valvesstenosis or insufficiency (and its severity).
- Doppler/pressuresEstimates that are interpreted in context.
If your report has a lot of numbers: don't try to “self-diagnose” by single ranges. What is useful is: what changed, what level, if correlated with symptoms y what follow-up is required.
When is an echocardiogram indicated?
It is usually requested when there are:
- shortness of breath or fatigue without clear cause,
- suspected heart failure,
- murmur detected on examination,
- hypertension of long evolution with suspicion of structural changes,
- monitoring of valvulopathies or other conditions.
If you are looking for a comprehensive review (not just a symptom), it is often integrated into a standard plan: Cardiac check up.
Real limitations of echocardiography
- It is not the best study for “hunting” intermittent arrhythmias (for that it is usually Holter monitoring).
- It may depend on the “acoustic window” (image quality), anatomy, air in the lungs, etc.
- A normal echo does not rule out non-structural causes of symptoms (anemia, lung, deconditioning, etc.).
Signs to consult with the report in hand
Schedule review if your report mentions any of these (especially if symptoms are present):
- Decreased LVEF or “systolic dysfunction”
- moderate or severe valvulopathy
- significant expansion of cavities
- marked hypertrophy
- suspicion of elevated pulmonary pressures
- or if your symptom persists even though the report says “no significant alterations”.”
If you want to integrate findings + symptoms + next step (follow-up, treatment or further study), it is most efficient to do it in consultation. Contact
Useful questions for your practice
- Does the finding explain my symptoms or is it incidental?
- What does “mild/moderate/severe” mean in my case?
- How often should I repeat the echocardiogram (if applicable)?
- What changes in habits or treatment have the most impact according to my profile?
- Do I need another study or just follow-up?