Here is an example of a decrescendo murmur beginning in early diastole.
The first and second heart sounds are normal.
The decrescendo murmur is high-pitched.  The anatomy video shows an enlarged left ventricle with normal contractility.  You can see regurgitant flow from the aorta into the left ventricle which causes the murmur.
Aortic Regurgitation (Decrescendo Diastolic Murmur) 82 Audio
 
                        
Aortic Regurgitation (Decrescendo Diastolic Murmur) 82 Sounds
 
                        
Half Speed Aortic Regurgitation (Decrescendo Diastolic Murmur) 82 Sounds
 
                        
Technique
 
                The patient's position should be sitting leaning forward.
Auscultation Tips for Aortic Regurgitation (Decrescendo Diastolic Murmur) 82
S1:NormalS2:Normal
Diastole:High-pitched, musical decrescendo murmur, early diastole
Sound Wave
Aortic Regurgitation (Decrescendo Diastolic Murmur) 82 Video
Authors and Sources
Authors and Reviewers
- ECG heart rhythm modules: Thomas O'Brien.
- ECG monitor simulation developer: Steve Collmann
- 
                    12 Lead Course: Dr. Michael Mazzini, MD.
- Spanish language ECG: Breena R. Taira, MD, MPH
- Medical review: Dr. Jonathan Keroes, MD
- Medical review: Dr. Pedro Azevedo, MD, Cardiology
- Last Update: 11/8/2021 
Sources
- 
                    
                        Electrocardiography for Healthcare Professionals, 6th Edition
                    
                    Kathryn Booth and Thomas O'Brien
 ISBN10: 1265013470, ISBN13: 9781265013479
 McGraw Hill, 2023
- 
                    
                        Rapid Interpretation of EKG's, Sixth Edition
                    
                    
 Dale Dublin
 Cover Publishing Company
- 
                        EKG Reference Guide
 EKG.Academy
- 
                    
                        12 Lead EKG for Nurses: Simple Steps to Interpret Rhythms, Arrhythmias, Blocks, Hypertrophy, Infarcts, & Cardiac Drugs
                    
                    
 Aaron Reed
 Create Space Independent Publishing
- 
                    
                        Heart Sounds and Murmurs: A Practical Guide with Audio CD-ROM 3rd Edition
                    
                    
 Elsevier-Health Sciences Division
 Barbara A. Erickson, PhD, RN, CCRN
- 
                    
                        The Virtual Cardiac Patient: A Multimedia Guide to Heart Sounds, Murmurs, EKG
                    
                    Jonathan Keroes, David Lieberman
 Publisher: Lippincott Williams & Wilkin)
 ISBN-10: 0781784425; ISBN-13: 978-0781784429
- Project Semilla, UCLA Emergency Medicine, EKG Training Breena R. Taira, MD, MPH
- 
                        ECG Reference Guide
 PracticalClinicalSkills.com
Aortic Regurgitation (Decrescendo Diastolic Murmur) 82 | #124




