Sandbox/001

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: Circulatory shock

Definition

Shock is the clinical expression of circulatory failure that results in inadequate cellular oxygen utilization.

Causes

Shock is a life-threatening condition and must be treated as such irrespective of the causes.

Classification

Hemodynamic Profiles of Shock

Type of Shock		CO	SVR	PCWP	CVP	SVO2
Cardiogenic	Myocardial Infarction	↓↓	↑	↑↑	↑↑	↓
	Acute Ventricular Septal Defect	↓↓	↑	nl—↑	↑↑	↑—↑↑
	Acute Mitral Regurgitation	↓↓	↑	↑↑	↑—↑↑	↓
	Right ventricular infarction	↓↓	↑	nl—↑	↑↑	↓
Extracardiac Obstructive	Cardiac Tamponade	↓—↓↓	↑	↑↑	↑↑	↓
	Pulmonary Embolism	↓↓	↑	nl —↓	↑↑	↓
Distributive	Septic Shock	nl—↑↑	↓—↓↓	nl—↓	nl—↓	↑—↑↑
	Anaphylactic Shock	nl—↑↑	↓—↓↓	nl—↓	nl—↓	↑—↑↑
Hypovolemic	Hemorrhage or Fluid Depletion	↓↓	↑	↓↓	↓↓	↓