Скачать или смотреть Heart Sounds in Mitral Stenosis | s1 | Cardiology

Heart Sounds in Mitral Stenosis | s1 | Cardiology

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▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬

00:00:00 Introduction to Lecture: How are heart sounds altered in Mitral Stenosis?
00:00:05 Changes of S1 in MS: Early stage: Loud
Advanced: Soft (mitral component disappears)
Mitral stenosis with A-fib: beat to beat Variations in the intensity.
00:00:15 Why is S1 loud?
00:00:38 Mechanism of progressive leaflet calcification in Mitral Stenosis.
00:01:10 Narrowing of the orifice: Fish mouth deformity/ Buttonhole deformity
00:03:20 Stenotic Valve
00:03:40 Symptoms start appearing When the valve orifice is reduced to less than 2 cm square. The disease is considered moderately severe at an approximately 1.5 cm square orifice. The leaflets become heavily calcified and immobile in advanced stages, reducing the orifice to less than 1 cm square.
00:05:00 Changes in S1 due to valve changes
00:09:25 S1 genesis in normal healthy individuals
00:10:15 S1 genesis in Mitral Stenosis
00:11:55 Quick Recap: Why is S1 loud in Mitral Stenosis?
00:13:00 Example: A normal mitral valve can be compared to a thin, pliable door that is slightly open and closes gently under minimal pressure. In contrast, a stenotic mitral valve is like a thick, wide-open door that requires high pressure to shut forcefully.
00:13:50 Advanced Mitral Stenosis: Soft S2 mechanism
00:15:36 Mitral Stenosis with A-fibrillation
00:16:45 Normal Conduction System
00:18:05 Conduction System in Mitral Stenosis
00:20:30 Thromboembolism mechanism in Mitral Stenosis
00:23:00 Mechanism of beat-to-beat intensity variation in Mitral Stenosis
00:25:00 Quick Recap: Mechanism of beat-to-beat intensity variation in Mitral Stenosis
00:26:20 Quick Recap: Changes in S1 in Mitral Stenosis
00:28:10 Overview of next lecture: Opening snap, Mid-Diastolic Murmur, Pre-Systolic Accentuation
Loud P2, Graham Steell Murmur.

Learn about the changes in heart sounds during mitral valve stenosis and how they manifest in different phases. Understanding heart sounds is crucial for proper auscultation, especially when examining variations in heart rate. This comprehensive lesson covers how heart murmur characteristics change from early to late stages, focusing on vital clinical assessment skills. 🩺
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