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Splitting of Heart Sounds | S2 Splitting

Normal heart sounds are produced during the cardiac cycle when the atrioventricular valves close (S1) and the semi-lunar valves close (S2). Splitting of heart sounds occurs when there is either a delay between the tricuspid and mitral valves closing or a delay between the aortic and pulmonary valves closing. This video provides an overview of the normal and split S2 heart sounds. The video covers physiological splitting, wide splitting, fixed splitting, and paradoxical splitting. It is designed to help medical students understand the content with animated figures. 0:00 Introduction 0:06 Normal Cardiac Structure 0:52 Cardiac Cycle 2:11 Normal Heart Sounds 2:59 Splitting of Heart Sounds 4:14 Physiological Splitting of S2 6:20 Wide Splitting of S2 7:18 Wide S2 - Pulmonary Stenosis 7:53 Wide S2 - Right Bundle Branch Block 8:30 Fixed Splitting of S2 11:11 Paradoxical Splitting of S2 12:11 Paradoxical S2 - Aortic Stenosis 12:48 Paradoxical S2 - Left Bundle Branch Block 13:23 Expiration and Paradoxical Splitting 14:28 Summary DISCLAIMER: This video is for education and entertainment purposes only and does not classify as medical advice. Videos from this channel should not be used for medical advice or to guide clinical practice. This content should not be used to guide medical decision-making. The channel takes no responsibility for any actions taken or not taken based on the information provided. If you need medical advice or information, seek it from a qualified medical professional. Note: If you spot any errors or mistakes in the video, please leave a comment below to let me know and I will try to correct it. Sources: https://smart.servier.com/ https://www.biorender.com/ https://www.ncbi.nlm.nih.gov/books/NB... https://www.med.umich.edu/lrc/psb_ope...