Your Echocardiogram Results, Explained by a Cardiologist

An echocardiogram report measures four things: how well your heart pumps (ejection fraction), how well it relaxes (diastolic function), whether your four heart valves open and close properly, and whether the heart chambers are normal in size and thickness. Normal ejection fraction is 50 to 70 percent. Mild valve regurgitation is a common, usually benign finding. This guide explains the headline numbers, common findings that sound scary but often are not, and which findings warrant a same-week follow-up.

You walked out of your echocardiogram appointment with a multi-page report full of percentages, grades, and medical abbreviations. Most of it looks alarming if you do not know what you are reading. Most of it is not. Here is how a board-certified cardiologist reads an echo report, what the headline numbers actually mean, and what to ask at your follow-up appointment.

What an echocardiogram measures

An echocardiogram, or echo, is an ultrasound of the heart. It is painless, takes about 30 to 45 minutes, and answers four key questions: how well does the heart pump (squeeze function), how well does it fill (relaxation), do the valves open and close properly, and are the heart chambers a normal size and thickness.

The report you receive covers all four. The numbers and grades can look intimidating, but the report follows a predictable structure and the important findings are usually called out near the top.

Ejection fraction (EF): the headline number

Ejection fraction is the single most important number on most echo reports. It measures the percentage of blood pumped out of the left ventricle with each heartbeat. A normal ejection fraction is approximately 50 to 70 percent. Higher than 70 percent is called hyperdynamic and has its own implications. Below 50 percent is considered reduced.

Here is the part that surprises patients: 100 percent ejection fraction is not the goal. The heart never fully empties. An EF of 60 to 65 percent is what most healthy hearts look like, and that is the range we aim for in most patients.

Normal EF, reduced EF, and preserved EF (HFrEF vs HFpEF)

Modern cardiology divides heart failure into two main categories based on ejection fraction. Heart failure with reduced ejection fraction (HFrEF) means EF is below 40 percent. The heart muscle is not squeezing well. Causes include prior heart attacks, viral cardiomyopathy, long-standing high blood pressure, and certain genetic conditions. Treatment has improved dramatically in the past decade with new medication classes.

Heart failure with preserved ejection fraction (HFpEF) means EF is normal (50 percent or higher) but the heart still cannot keep up with the body. The problem is that the heart has become stiff and cannot relax to fill properly. This is the more common form in older adults and patients with long-standing hypertension or diabetes.

The middle range, EF 40 to 49 percent, is called “mildly reduced” and warrants close follow-up. It is a generally treatable space.

Valve function: stenosis, regurgitation, and grades

Your echo evaluates all four heart valves. For each, the report describes whether the valve is opening normally (no stenosis), closing normally (no regurgitation), or showing some degree of dysfunction. Dysfunction is graded:

• Trivial and mild: common in healthy hearts, rarely treated. Many adults have trivial mitral or tricuspid regurgitation and never have a problem.
• Moderate: warrants follow-up echos and sometimes lifestyle or medication adjustments depending on the valve and cause.
• Severe: particularly aortic stenosis or mitral regurgitation, can require valve replacement or repair, including minimally invasive procedures like TAVR for aortic stenosis.

Severe valve disease usually causes symptoms (shortness of breath, fatigue, fainting), and treatment timing depends on both the grade and the symptom picture.

Chamber sizes and wall thickness

The echo measures the size of each of the four heart chambers and the thickness of the heart muscle walls. Common findings include left ventricular hypertrophy (LVH) and left atrial enlargement.

Left ventricular hypertrophy means the wall of the main pumping chamber has thickened. This is usually a response to high blood pressure over many years, valve disease, or certain genetic conditions. LVH itself is not an emergency, but it indicates the heart is working harder than it should and benefits from blood pressure optimization and ongoing follow-up.

Left atrial enlargement can suggest long-standing high blood pressure, mitral valve disease, or a higher risk of atrial fibrillation. We typically want a follow-up plan in place rather than ignoring the finding.

Diastolic function and what it means

Beyond ejection fraction, the echo evaluates how well the heart relaxes and fills between beats, called diastolic function. The report may grade this as normal, mild dysfunction (Grade 1), moderate (Grade 2), or severe (Grade 3).

Diastolic dysfunction is common in older adults, in people with long-standing hypertension or diabetes, and is the key abnormality in HFpEF. The finding itself does not always require medication, but it changes how we monitor patients over time.

Common findings that sound scary but often are not

Several echo findings cause patient alarm but are usually benign in context:

• Trace pericardial effusion: a tiny amount of fluid around the heart, normal in many people
• Trivial valve regurgitation: found in most healthy hearts
• Patent foramen ovale (PFO): a small flap-like opening between upper chambers, present in about 1 in 4 adults, usually causes no problems
• Mild LVH in a person with controlled blood pressure may be stable for decades

Context matters. The same finding can be benign in one patient and significant in another. That is why a cardiologist reading your report interprets the numbers in the context of your specific symptoms, medications, and history.

Findings that need a same-week follow-up

Some echo findings should prompt a near-term cardiologist conversation rather than waiting for routine follow-up:

• Ejection fraction below 40%
• Moderate or severe valve disease, particularly aortic stenosis or mitral regurgitation
• Significant LVH with new symptoms
• Pericardial effusion that is more than trace
• Right ventricular dysfunction or evidence of significant pulmonary hypertension

None of these are necessarily emergencies in the moment, but they change the treatment plan and should not sit unaddressed for months.

Questions to ask your cardiologist about your echo

Patients often leave appointments wishing they had asked more. If you have just received an echo report, these five questions tend to surface what matters:

• What is my ejection fraction, and where do you want it to be?
• Are any of my valves showing more than mild disease?
• Do I have any wall thickening or chamber enlargement that needs follow-up?
• When should we repeat this study, and why?
• Are there medications, lifestyle changes, or referrals that should come out of this?

How we use echo results at HLHV

Echocardiograms at Healthy Living Heart and Vein are performed on-site at our Conroe and Woodlands locations, with same-day appointments often available. Our cardiologists read the studies themselves rather than outsourcing interpretation, so the follow-up conversation happens within days, not weeks. If your echo shows something that needs additional imaging (stress echo, transesophageal echo, cardiac MRI) we coordinate that directly.

Patients across Conroe, Shenandoah, Spring, Tomball, Magnolia, Huntsville, Walker County, and the surrounding North Houston catchment can access this without traveling into the medical center.

Frequently Asked Questions

Is an ejection fraction of 55% good?

Yes. The normal range for ejection fraction is approximately 50 to 70 percent, so 55 percent is squarely within normal. Many healthy adults have EFs in the 55 to 65 percent range. We do not chase higher numbers.

What is the worst ejection fraction?

Ejection fraction can theoretically go as low as 10 to 15 percent, though most patients with severe heart failure are in the 20 to 35 percent range. Modern medications, implantable devices, and (in selected cases) advanced therapies can substantially improve outcomes even at low ejection fractions.

What does mild mitral regurgitation mean?

Mild mitral regurgitation means a small amount of blood leaks backward through the mitral valve with each beat. It is a common, often incidental finding in healthy adults and rarely requires treatment. It is typically just monitored on follow-up echos.

Should I worry about left ventricular hypertrophy on my echo?

Left ventricular hypertrophy is not an emergency but it is a meaningful finding. It usually reflects years of pressure load on the heart, most often from undertreated hypertension. The action is to optimize blood pressure control and follow up on a planned cadence.

How often should I repeat an echocardiogram?

That depends on the findings. A normal echo in someone without symptoms may not need repeating for years. Moderate valve disease or reduced ejection fraction typically warrants annual repeats. Your cardiologist will give you a specific cadence based on your report.

Rajesh Ramineni, MD, FACC, FSCAI

A Fellow of both the American College of Cardiology and SCAI, Dr. Ramineni performs and interprets echocardiograms, stress echos, and transesophageal echos as part of comprehensive cardiac evaluation. Same-day reads are available at all three HLHV locations.