Congestive heart failure and ejection fraction

The left ventricle fills with blood and then contracts. Ejection fraction compares the amount pumped out with the amount present before contraction. It is usually estimated by an echocardiogram, although other tests may be used. A reduced ejection fraction can mean weaker squeezing, while some people have heart failure symptoms despite a preserved measurement because the chamber is stiff or does not relax normally. The result can change over time and should be read alongside symptoms, valve function, rhythm, blood pressure, and other findings. A number alone does not describe how you feel or determine every treatment decision.

Keep a copy of the report and ask which chamber and measurement it describes. Take medicines as prescribed and report increasing breathlessness, cough, swelling, fatigue, or palpitations. Ask whether repeat imaging is needed and what improvement or stability would mean for your care. Avoid comparing your result with another person’s because tests, timing, and clinical circumstances differ.

Get emergency help for severe breathing difficulty, chest pressure, fainting, confusion, or blue-grey lips, regardless of a previous ejection fraction. Contact your clinical team promptly if symptoms are new or worsening, even when an earlier scan was reassuring. A preserved ejection fraction does not make serious symptoms harmless.

Ask what your ejection fraction means with the rest of the echocardiogram, whether the heart is stiff or enlarged, and whether valve or rhythm findings matter. Discuss medicines, activity, monitoring, and when a chronic disease review or repeat scan is appropriate.