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Distributive shock is different from the other three categories of shock in that it occurs even though the output of the heart is at or above a normal level. [2] The most common cause is sepsis leading to a type of distributive shock called septic shock , a condition that can be fatal.
Septic shock (a form of distributive shock) is the most common form of shock. Shock from blood loss occurs in about 1–2% of trauma cases. [34] Overall, up to one-third of people admitted to the intensive care unit (ICU) are in circulatory shock. [42]
Neurogenic shock is a distributive type of shock resulting in hypotension (low blood pressure), often with bradycardia (slowed heart rate), caused by disruption of autonomic nervous system pathways. [1] It can occur after damage to the central nervous system, such as spinal cord injury and traumatic brain injury.
Septic shock is a potentially fatal medical condition that occurs when sepsis, which is organ injury or damage in response to infection, leads to dangerously low blood pressure and abnormalities in cellular metabolism. The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3) defines septic shock as a subset of sepsis ...
Now the most common type of distributive shock is septic shock, from pathogens in the blood, most commonly gram-negative pathogens. What happens with septic shock, is endotoxins, these large clunky lipopolysaccharide molecules (sometimes just called LPS) found on the outer membrane of gram-negative bacteria causes a crazy cascade of events that ...
Delaying initiation of vasopressor therapy during septic shock is associated with increased mortality. [73] Norepinephrine is often used as a first-line treatment for hypotensive septic shock because evidence shows that there is a relative deficiency of vasopressin when shock continues for 24 to 48 hours. [74]
Distributive shock is caused by abnormally distributed blood throughout the body which causes some parts of the body to receive inadequate blood supply. Common causes of distributive shock include sepsis, anaphylaxis, and head or spinal cord injury (neurogenic shock). [4] Septic shock is typically caused by an infection or inflammation in the body.
Obstructive shock can occur in the setting of tension pneumothorax and cardiac tamponade. These etiologies should be uncovered in the primary survey. [3] In the setting of head or neck trauma, an inadequate sympathetic response, or neurogenic shock, is a type of distributive shock that is caused by a decrease in peripheral vascular resistance. [3]