Affected tissues 
The major tissues affected are nerves and muscles, where irreversible damage starts to occur after 4–6 hours of cessation of blood supply.
Skeletal muscle, the major tissue affected, is still relatively resistant to infarction compared to the heart and brain because its ability to rely on anaerobic metabolism by glycogen stored in the cells, which may supply the muscle tissue long enough for any clot to dissolve, either by intervention or the body's own system for thrombus breakdown. In contrast, brain tissue (in cerebral infarction) does not store glycogen, and the heart (in myocardial infarction) is so specialized on aerobic metabolism that not enough energy can be liberated by lactate production to sustain its needs.
Bone is more susceptible to ischemia, with hematopoietic cells usually dying within 12 hours, and other bone cells (osteocytes, osteoclasts, osteoblasts etc.) within 12–48 hours. On the other hand, it has better regenerative capacity once blood supply is reestablished, as the remaining dead inorganic osseous tissue forms a framework upon which immigrating cells can reestablish functional bone tissue in optimal conditions.
- Thrombosis (approximately 40% of cases)
- Arterial embolism (approximately 40%)
- arteriosclerosis obliterans
Early symptoms of an arterial embolism in the arms or legs appear as soon as there is ischemia of the tissue, even before any frank infarction has begun. Such symptoms may include:
- Coldness in a leg, arm, hand or fingers
- Decreased or no pulse in an arm or leg beyond the site of blockage
- Pain in the affected area
- Muscle spasm in the affected area
- Numbness and tingling in an arm or leg
- Paleness (pallor) of the skin of the arm or leg
- Muscle weakness of an arm or leg, possibly to the grade of paralysis
Later symptoms are closely related to infarction of the tissue supplied by the occluded artery:
- Blisters of the skin in the affected area
- Shedding of skin (desquamation)
- Skin erosion (ulceration)
- Discoloration (mottling, cyanosis or darkening) of the skin following necrosis. The discoloration usually has a distinct demarcation at the blockage.
A major presentation of diabetic skeletal muscle infarction is painful thigh or leg swelling.
In addition to evaluating the symptoms described above, angiography can distinguish between cases caused by arteriosclerosis obliterans (displaying abnormalities in other vessels and collateral circulations) from those caused by emboli.
Oxygen consumption of skeletal muscle is approximately 50 times larger while contracting than in the resting state. Thus, resting the affected limb should delay onset of infarction substantially after arterial occlusion.
In the legs, below the inguinal ligament, percutaneous aspiration thrombectomy is a rapid and effective way of removing thromboembolic occlusions. Balloon thrombectomy using a Fogarty catheter may also be used. In the arms, balloon thrombectomy is an effective treatment for thromboemboli as well. However, local thrombi from atherosclerotic plaque are harder to treat than embolized ones. If results are not satisfying, another angiography should be performed.
Because of the high recurrence rates of thromboembolism, it is necessary to administer anticoagulant therapy as well. Aspirin and low molecular weight heparin should be administered, and possibly warfarin as well.
Popular culture 
Gregory House, the main character of the medical drama House M.D., was stricken with a limb infarction in his right quadriceps muscle. The infarction became advanced. Muscle death occurred and the doctors at the hospital tried a risky procedure in order to save his leg. The quadriceps was removed, forcing House to walk with a cane. The condition plays a large role in the development of his character. It should be noted that the injury suffered by House is a rather extreme example of limb infarction.
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