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Segmental arterial mediolysis (SAM) is a rare disorder of the arteries characterized by the development of aneurysms, blood clots, narrowing of the arteries (stenoses), and blood collections (hematomas) in the affected distribution. [1] [2] SAM most commonly affects the arteries supplying the intestines and abdominal organs. [citation needed]
In organic chemistry, organocatalysis is a form of catalysis in which the rate of a chemical reaction is increased by an organic catalyst. This "organocatalyst" consists of carbon , hydrogen , sulfur and other nonmetal elements found in organic compounds.
[1] [2] An occlusion of arteries disrupts oxygen and blood supply to tissues, leading to ischemia. [1] Depending on the extent of ischemia, symptoms of arterial occlusion range from simple soreness and pain that can be relieved with rest, [3] to a lack of sensation or paralysis that could require amputation. [3]
Patients may show up at the emergency room with life-threatening symptoms (such as massive hemoptysis or renal failure) or with nonspecific signs and symptoms (such as a rash, fever, myalgia, arthralgia, malaise, or weight loss) at their family physician's office. The size, location, and extent of the vessels involved all affect the manifestations.
Angiography provides important information regarding the perfusion and patency of distal arteries (e.g. femoral artery). The presence of collateral arteries in the pelvic and groin area is important in maintaining crucial blood flow and lower limb viability. However, angiography should only be used if symptoms warrant surgical intervention. [2]
In treating renal artery disease, a 2014 study indicates that balloon angioplasty can improve diastolic blood pressure and potentially reduce antihypertensive drug requirements. [30] In the case of peripheral artery disease, treatment to prevent complications is important; without treatment, sores or gangrene (tissue death) may occur. [citation ...
Cases of walking pneumonia are spiking across the U.S., according to the CDC. Dr. Marc Siegel speaks with Fox News Digital about common sources, symptoms and treatments.
Arteriosclerosis, literally meaning "hardening of the arteries", is an umbrella term for a vascular disorder characterized by abnormal thickening, hardening, and loss of elasticity [3] of the walls of arteries; [4] this process gradually restricts the blood flow to one's organs and tissues and can lead to severe health risks brought on by atherosclerosis, which is a specific form of ...
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