Summation Gallop at 120 BPM Lesson

patient thorax when auscultating by stethoscope

patient position during auscultation
The patient was supine during auscultation.

Description

With high heart rates, in this case 120 BPM, the diastolic interval is shortened. Accordingly, S3 and S4 sounds begin to merge, producing a single loud heart sound.

The cardiac animation video presents an enlarged left ventricle with decreased left ventricular contractility and a minimally enlarged left atrium.

Phonocardiogram

Anatomy

Summation Gallop at 120 BPM

The cardiac animation shows an enlarged left ventricle with decreased left ventricular contractility and a minimally enlarged left atrium.
Authors and Sources

Authors and Reviewers

Sources

  • 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
  • PESI Faculty - Diane S Wrigley
  • 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




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