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Superficial thrombophlebitis or Superficial vein thrombosis (SVT) is a thrombosis and inflammation of superficial veins which presents as a painful induration with erythema, often in a linear or branching configuration forming cords. Superficial thrombophlebitis is due to inflammation and/or thrombosis, and less commonly infection of the vein. It is generally a benign, self-limited disorder, however, it can be complicated by deep vein thrombosis (DVT) and even pulmonary embolism (PE).〔Ann Intern Med 2010; 152:218 / Superficial venous thrombosis and venous thromboembolism: a large, prospective epidemiologic study / Decousus H., et al.〕 == Incidence == Some 125,000 cases a year have been reported in the United States, but actual incidence of spontaneous thrombophlebitis is unknown.〔Blumenberg RM, et al. / Occult deep venous thrombosis complicating superficial thrombophlebitis / J Vasc Surg. 1998;27:338-343〕 A fourfold increased incidence from the third to the eight decade in men and a preponderance among women of approximately 55-70%.〔Coon WW, et al. / Venous thromboembolism and other venous disease in the Tecumseh community health study / Circulation 1973;48;839-846〕 The average mean age of affected patients is 60 years.〔Decousus H., et al. / Superficial vein thrombosis: risk factors, diagnosis, and treatment/ Curr Opin Pulm Med 2003;9:393-397〕 Thrombophlebitis can develop along the arm, back, or neck veins, the leg is by far the most common site. When it occurs in the leg, the great saphenous vein is usually involved, although other locations are possible.〔Karwowski, J., et al. / How to manage thrombophlebitis of the lower extremities / J of Fam Prac 2013:554-558〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Superficial thrombophlebitis」の詳細全文を読む スポンサード リンク
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