Circulatory collapse
Encyclopedia
A circulatory collapse is defined as a general or specific failure of the circulation
Circulatory system
The circulatory system is an organ system that passes nutrients , gases, hormones, blood cells, etc...

, either cardiac or peripheral
Peripheral
A peripheral is a device attached to a host computer, but not part of it, and is more or less dependent on the host. It expands the host's capabilities, but does not form part of the core computer architecture....

 in nature. A common cause of this could be shock or trauma
Physical trauma
Trauma refers to "a body wound or shock produced by sudden physical injury, as from violence or accident." It can also be described as "a physical wound or injury, such as a fracture or blow." Major trauma can result in secondary complications such as circulatory shock, respiratory failure and death...

 from injury or surgery . A "general failure" is one that occurs across a wide range of locations in the body, such as systemic shock after the loss of a large amount of blood collapsing all the circulatory systems in the legs. A specific failure can be traced to a particular point, such as a clot.

Cardiac circulatory collapse affects the vessels of the heart
Heart
The heart is a myogenic muscular organ found in all animals with a circulatory system , that is responsible for pumping blood throughout the blood vessels by repeated, rhythmic contractions...

 such as the aorta
Aorta
The aorta is the largest artery in the body, originating from the left ventricle of the heart and extending down to the abdomen, where it branches off into two smaller arteries...

 and is almost always fatal. It is sometimes referred to as "acute" circulatory failure.

Peripheral circulatory collapse involves outlying arteries and veins in the body and can result in gangrene, organ failure or other serious complications. This form is sometimes called peripheral vascular failure, shock or peripheral vascular shutdown.

Effects

The effects of a circulatory collapse vary based on the type of collapse it is. Peripheral collapses usually involve abnormally low blood pressure and result in collapsed arteries and/or veins, leading to oxygen deprivation to tissues, organs, and limbs.

Acute collapse can result from heart failure and results in collapse of the primary vessels of the heart collapsing, perhaps combined with cardiac arrest
Cardiac arrest
Cardiac arrest, is the cessation of normal circulation of the blood due to failure of the heart to contract effectively...

.

Causes

A very large range of medical conditions can cause circulatory collapse. These include, but are not limited to:
  • Surgery
    Surgery
    Surgery is an ancient medical specialty that uses operative manual and instrumental techniques on a patient to investigate and/or treat a pathological condition such as disease or injury, or to help improve bodily function or appearance.An act of performing surgery may be called a surgical...

    , particularly on patients who have lost blood.
  • Blood clots, including the use of some platelet
    Platelet
    Platelets, or thrombocytes , are small,irregularly shaped clear cell fragments , 2–3 µm in diameter, which are derived from fragmentation of precursor megakaryocytes.  The average lifespan of a platelet is normally just 5 to 9 days...

    -activating factor drugs in some animals and humans
  • Dengue Fever
    Dengue fever
    Dengue fever , also known as breakbone fever, is an infectious tropical disease caused by the dengue virus. Symptoms include fever, headache, muscle and joint pains, and a characteristic skin rash that is similar to measles...

  • Shock
  • Heart Disease
  • Superior mesenteric artery syndrome
    Superior mesenteric artery syndrome
    Superior mesenteric artery syndrome is a very rare, life-threatening gastro-vascular disorder characterized by a compression of the third portion of the duodenum by the abdominal aorta and the overlying superior mesenteric artery...

  • Drugs that affect blood pressure
  • Drinking sea water
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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