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White blood cells, carried to the area by the newly returning blood, release a host of inflammatory factors such as interleukins as well as free radicals in response to tissue damage. [2] The restored blood flow reintroduces oxygen within cells that damages cellular proteins, DNA, and the plasma membrane. Damage to the cell's membrane may in ...
Damage to skeletal muscle may take various forms. Crush and other physical injuries cause damage to muscle cells directly or interfere with blood supply, while non-physical causes interfere with muscle cell metabolism. When damaged, muscle tissue rapidly fills with fluid from the bloodstream, including sodium ions.
As the muscle dies this will cause pain to radiate from the affected area into the compartmentalized tissue. A loss of range of motion from swelling will also be seen in the affected limb. Along with muscle strength weakness associated with the muscles involved from loss of filament interaction. [15] Compartment syndrome in muscle
Reduced blood flow to the heart associated with coronary ischemia can result in inadequate oxygen supply to the heart muscle. [6] When oxygen supply to the heart is unable to keep up with oxygen demand from the muscle, the result is the characteristic symptoms of coronary ischemia, the most common of which is chest pain. [6] Chest pain due to ...
The reduced blood supply can trigger inflammation. [6] This can cause the soft tissues to swell. [5] Reperfusion therapy can worsen this inflammation. [5] The fascia that defines the limbs' compartments does not stretch. [6] Even a small bleed or muscle swelling can greatly raise the pressure. [8] [6] [5] The pathophysiology of CECS is not ...
First, metabolites that are produced by active muscle use can alter skeletal muscle tone. Second, skeletal muscle can undergo hyperemia, which is a mechanism of local blood flow regulation with two major subtypes. Regardless of the subtype, the result of hyperemia is an increase in blood flow to the affected skeletal muscle. [4]
Polymyalgia rheumatica (or "muscle rheumatism") is an inflammatory condition that mainly occurs in the elderly; it is associated with giant-cell arteritis (It often responds to prednisolone). [18] Polymyositis is an autoimmune condition in which the muscle is affected. [19] Rhabdomyolysis is the breakdown of muscular tissue due to any cause ...
The specific action on the kidneys is not understood completely, but may be due partly to nephrotoxic metabolites of myoglobin. The most devastating systemic effects can occur when the crushing pressure is suddenly released, without proper preparation of the patient, causing reperfusion syndrome. In addition to tissue directly suffering the ...