Fixed Splitting of Second Heart Sound | Auscultation #305 | Lesson with Audio
The patient was supine during auscultation.
Description
This lesson covers fixed splitting of the second heart sound. The separation of the two components of the second heart sound remains constant during both inspiration and expiration. In this recording, the splitting is sixty milliseconds. Fixed splitting of the second heart sound (along with murmurs) indicates the presence of an atrial septal defect. This is a congenital heart defect wherein the intra-atrial septum is incompletely formed, resulting in a hole between the left and right atria. In this simulated heart sound, we have eliminated the murmurs so that you can concentrate on the fixed splitting of the second heart sound.Phonocardiogram
Anatomy
Fixed Splitting of Second Heart Sound
Authors and Sources
Authors and Reviewers
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Heart sounds by Dr. Jonathan Keroes, MD and David Lieberman, Developer, Virtual Cardiac Patient.
- Lung sounds by Diane Wrigley, PA
- Respiratory cases: William French
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David Lieberman, Audio Engineering
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Heart sounds mentorship by W. Proctor Harvey, MD
- Special thanks for the medical mentorship of Dr. Raymond Murphy
- Reviewed by Dr. Barbara Erickson, PhD, RN, CCRN.
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Last Update: 11/10/2021
Sources
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Heart and Lung Sounds Reference Library
Diane S. Wrigley
Publisher: PESI -
Impact Patient Care: Key Physical Assessment Strategies and the Underlying Pathophysiology
Diane S Wrigley & Rosale Lobo - Practical Clinical Skills: Lung Sounds
- Essential Lung Sounds
Diane S. Wrigley, PA-C
Published by MedEdu LLC - PESI Faculty - Diane S Wrigley
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Case Profiles in Respiratory Care 3rd Ed, 2019
William A.French
Published by Delmar Cengage - Essential Lung Sounds
by William A. French
Published by Cengage Learning, 2011 - Understanding Lung Sounds
Steven Lehrer, MD
- Clinical Heart Disease
W Proctor Harvey, MD
Clinical Heart Disease
Laennec Publishing; 1st edition (January 1, 2009) -
Heart and Lung Sounds Reference Guide
PracticalClinicalSkills.com
