
Ejection fraction: An important heart test - Mayo Clinic
Jan 29, 2025 · Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes. When the heart squeezes, it's called a contraction. Ejection fraction is …
Iron deficiency anemia - Symptoms & causes - Mayo Clinic
Sep 20, 2025 · If you or your child gets symptoms that might be from iron deficiency anemia, see your healthcare professional. Don't try to diagnose or treat it on your own. And talk to a …
Pulmonary hypertension - Symptoms and causes - Mayo Clinic
Apr 11, 2025 · Pulmonary hypertension is a type of high blood pressure that affects the arteries in the lungs and the right side of the heart. In one form of pulmonary hypertension, called …
Heart failure with preserved ejection fraction (HFpEF): More than ...
May 20, 2015 · Nearly half of all patients with heart failure have a normal ejection fraction (EF). The prevalence of this syndrome, termed heart failure with preserved ejection fraction …
Fatty liver disease (MASLD) - Symptoms and causes - Mayo Clinic
Dec 12, 2025 · Compared with a healthy liver (top), a fatty liver (bottom) appears bigger and discolored. Tissue samples show extra fat in fatty liver disease, while inflammation and …
Atrial fibrillation - Diagnosis and treatment - Mayo Clinic
Diagnosis Atrial fibrillation (AFib) may be diagnosed when a health checkup is done for another reason. To diagnose AFib, the healthcare professional examines you and listens to your heart. …
Lyme disease - Symptoms and causes - Mayo Clinic
Feb 10, 2023 · Overview Lyme disease is an illness caused by borrelia bacteria. Humans usually get Lyme disease from the bite of a tick carrying the bacteria. Ticks that can carry borrelia …
Gastroparesis - Symptoms and causes - Mayo Clinic
Gastroparesis is a condition in which the muscles in the stomach don't move food as they should for it to be digested. Most often, muscles contract to send food through the digestive tract. But …
Concussion - Symptoms and causes - Mayo Clinic
Jan 12, 2024 · Symptoms The symptoms of a concussion can be subtle and may not occur right away. Symptoms can last for days, weeks or even longer. Common symptoms after a mild …
Fracción de eyección: un estudio importante del corazón
Jul 2, 2025 · La fracción de eyección es una medida del porcentaje de sangre que sale del corazón cada vez que se comprime. Cuando el corazón se comprime, se llama contracción. …