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The small cardiac vein, also known as the right coronary vein, [1] is a coronary vein that drains parts of the right atrium and right ventricle of the heart. [2] Despite its size, it is one of the major drainage vessels for the heart.
The major tissues affected are nerves and muscles, where irreversible damage starts to occur after 4–6 hours of cessation of blood supply. [4] 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 may supply the muscle tissue long enough for ...
The GSV, a superficial vein, is the longest vein in the body. It has its origin in the dorsal venous arch of the foot, a superficial vein which connects the small saphenous vein with the GSV. It travels up the leg and medial side of the thigh to reach the groin, where it drains into the common femoral vein. [32]
Critical limb ischemia is diagnosed by the presence of ischemic rest pain, and an ulcers that will not heal or gangrene due to insufficient blood flow. [3] Insufficient blood flow may be confirmed by ankle-brachial index (ABI), ankle pressure, toe-brachial index (TBI), toe systolic pressure, transcutaneous oxygen measurement (TcpO2 ), or skin perfusion pressure (SPP).
Coronary arteries deliver oxygen-rich blood to the heart muscle. [5] 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 ...
[12] [26] Muscle necrosis can happen fast, sometimes within just 3 hours after an injury. [13] A fasciotomy in the leg's lateral compartment might cause symptoms affecting nearby nerves and muscles. [10] These may include foot drop, numbness along leg, numbness of big toe, pain, and loss of foot eversion. [10]
Previous damage to leg; Blood clot; Smoking; Swelling and inflammation of a vein close to the skin; Congestive heart failure. [3] Long periods of immobility that can be encountered from driving, [4] flying, bed rest/hospitalization, or having an orthopedic cast.
The microvascular dysfunctions refer to the abnormalities in the very small blood vessels of the heart. The narrowing of these vessels may lead to lack of oxygen in specific areas of the cardiac muscle causing chest pain. Several studies have shown that patients living with microvascular angina may have an enhanced pain perception, and usually ...