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Heart failure sounds, murmurs made easy a complete guide with audio. Read here for some notes for S1, S2, S3, S4, Regurgitation, Heart murmurs and further explanation below! This is part 1 of 3: Tap the Link below for full video ⤵️ • [Full Video] Heart Failure Sounds Murmurs 👉🏼 • Heart Failure Sounds Murmurs (Auscu... • Support REV🧠MED 🫶🏼 We love you for it • Subscribe👉🏼 https://www.youtube.com/revmedicine?s... • Acute decompensated heart failure (ADHF) • ✅ Overview • Heart failure just means the heart is unable to meet perfusion demands of the body. Acute heart failure is a sudden deterioration in cardiac function. • Either: • In a patient who was previously healthy (De Novo heart failure) or a patient with a previous cardiomyopathy (acute decompensated heart failure - ADHF). First lets understand some physiology. • ✅ Physiology • Cardiac output is the volume of blood pumped by the heart in a minute. Given by Cardiac output = heart rate x stroke volume. • Remember that not all blood in the ventricle gets pumped out during systole. The volume of blood in the ventricle before it starts contracting is known as the End Diastolic Volume at about (~110 mL). • Typically only ~70 mL gets pumped out. This is referred to as the Stroke Volume (~70 mL). Ejection fraction is the fraction of blood in the ventricle that is pumped out. So Ejaction Fraction will be = Stroke Volume (70 mL) divided by End Diastolic Volume (110 mL). Which gives us ~64%, and remember a normal Ejaction Fraction is around 55-70%. • So let’s see the cardiac output. We will take a normal resting heart rate at 70 BPM x 70 mL = 4900 mL/min so ~5L per minute. In heart failure the cardiac output produced is just not enough to perfuse the body. • ✅ Causes of Heart Failure • • Remember the heart is a pump. The blood vessels are pipes that enter and leave the pump. Heart failure is pump failure… • • 1.Myocardial Infarction (MI) • • 2. Acute valvulopathy such as a sudden rupture of a papillary muscle in a patient who recently had a MI, generating an acute and massive mitral regurgitation. • • 3. Arrhythmias such as ventricular fibrillation, • • 4. Pulmonary embolism • • 5. Myocarditis • • 6. Drugs can also lead to heart failure such as over treatment with Beta blockers or inappropriate combinations like calcium channel blockers and beta blockers together. @rev.med • • ✅ Signs and symptoms • • Shortness of breath (dyspnea), cough, leg swelling, chest pain, rales, cardiac murmurs, other clinical signs. • • 💭 More info on signs, symptoms, diagnosis, and treatment coming soon in future notes and posts. • _____________________________ • 💜 More content on the way • Share - Comment - Like! • _____________________________ • ✅ About REV MED 🧠 • We are having fun while learning complex topics. Come join us? • Send us a hug 😚 by hitting the SUBSCRIBE button! • 🫶🏼 Support REV MED We love you for it • 👉🏼 YouTube (Subscribe) https://www.youtube.com/revmedicine?s... • 👉🏾 Instagram (Follow) / rev.med • 👉🏿 TikTok (we're new here): / rev.med • ✌🏽Consider donating! Help us keep producing content! Visit our link and scroll to the bottom • https://direct.me/revmed • REV MED is an online medical education platform for learners like yourself. Our illustrated lessons on high-yield topics are the perfect guides to REV up any healthcare student or professional's brain. • 👋🏼 We are here to empower you to reach your full potential. Education is everywhere, but open access to education is not. We are dissecting medical education, cutting the fat, injecting simplicity while making sure it's available for everyone. 😚 Anatomy, Pharmacology, Microbiology, Biochemistry, Histology, Pathology, Physiology, Immunology, USMLE, NCLEX, PANCE, etc... will all be covered here! • This is your opportunity to help our growing community of learners and team of world-class educators, illustrators, and medical professionals. Just $5 makes a difference. Your support funds all of REV MED’s work, and keeps the content rolling out! You can also give at paypal.me/revmedicine • Thank you we really appreciate YOU! Looking forward to chatting in the comments below ⤵️

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