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@drbahaadmourInside the Heart | Blood Leaves and Remains 🔄🫀 ────────── Your heart does not empty completely with every beat. 🔬 The left ventricular ejection fraction, or LVEF, measures how much blood the left ventricle pumps out during contraction. For example, an LVEF of 64% means the left ventricle ejects 64% of the blood volume it contains at the end of filling, while about 36% remains inside before the next heartbeat refills it. A value of 64% is within the usual normal range. Blood then
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@Dr. Bahaa Dmour One Beat, Two Circuits 🫀 ────────── 💓 Your heart beats about 100,000 times a day—and most people never realize that the heart muscle itself gets its blood supply mainly during relaxation (diastole), not during the squeeze. 🫀 Quick facts you’ll remember: • Atria and ventricles are electrically insulated—normally, only the AV node connects them. ⚡️ • Heart cells are loaded with mitochondria because the heart depends on oxygen 24/7. 🔋 • Valves have minimal direct blood supply,
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As a Cardiologist, one blood test every woman should check to help prevent heart attack and stroke… And it’s Lp(a) ……. 💪and not just the standard cholesterol panel. A landmark 2026 study in JAMA Cardiology followed 27,748 healthy women (median age 53, no prior heart disease) for nearly 30 years. Key findings: • Even modest elevations in Lp(a) (lipoprotein(a)) above 30 mg/dL (or the 75th percentile ≈31 mg/dL) were associated with increased long-term risk of major cardiovascular events and corona
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