Cardiogenic shock classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: João André Alves Silva, M.D. [2]
Overview
Classification
In cardiogenic shock the root abnormality is the inability of the heart to pump out enough blood to maintain normal organ perfusion and blood pressure. However, this failure may be due to different factors, which allow us to classify cardiogenic shock into two categories:[1][2]
- Intrinsic - this includes the conditions affecting the heart or the structures that allow it to function properly. In this category, the affected structures may be: the myocardial muscle, responsible to pump out the blood; the heart valves allowing the blood in and out of the heart chambers; the conduction system, responsible for the transmission of the electrical signals that allow the myocardium to contract in a coordinated fashion or, a combination of the previous.
- Compressive - this includes the conditions in which a healthy heart is prevented from working properly by other cause.
Often times both factors are affecting the heart's ability to perform its function, at which times it might be hard to identify clearly the underlying mechanism of the cardiogenic shock.[2]
References
- ↑ Longo, Dan L. (Dan Louis) (2012). Harrison's principles of internal medici. New York: McGraw-Hill. ISBN 978-0-07-174889-6.
- ↑ 2.0 2.1 Neighbors, Marianne; Myers, Jeffrey W.; Tannehill-Jones, Ruth (2002). Principles of pathophysiology and emergency medical care. Albany: Delmar Thomson Learning. ISBN [[Special:BookSources/<!DOCTYPE|<!DOCTYPE]] Check
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