Merck Manual

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Superficial Venous Thrombosis

By

James D. Douketis

, MD, McMaster University

Last full review/revision Dec 2019| Content last modified Dec 2019
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Superficial venous thrombosis is a blood clot in a superficial vein of the upper or lower extremities or, less commonly, in one or more veins of the chest or breast (Mondor disease).

Superficial venous thrombosis in the upper extremity most commonly results from IV infusions or catheterization; varicose veins seem to be the main risk factor for the lower extremity, especially among women. Superficial venous thrombi rarely cause serious complications and rarely become emboli.

Typically, patients present with pain, tenderness, or an indurated cord along a palpable superficial vein. The overlying skin is usually warm and erythematous.

Migratory superficial venous thrombosis, which develops, resolves, and recurs in normal veins of the arms, legs, and torso at various times, is a possible harbinger of pancreatic cancer and other adenocarcinomas (Trousseau syndrome).

Diagnosis is based on history and physical examination. Patients with superficial venous thrombosis above the knee have an increased risk of deep venous thrombosis (DVT) and should probably have ultrasonography.

Treatment

  • Warm compresses and nonsteroidal anti-inflammatory drugs (NSAIDs)

  • Sometimes anticoagulation

Treatment traditionally involves warm compresses and NSAIDs.

In patients with extensive superficial venous thrombosis, anticoagulation (eg, with low molecular weight heparin, fondaparinux) is often beneficial. The optimal regimen and duration are unknown, but most experts recommend using either low molecular weight heparin (eg, enoxaparin 40 mg subcutaneously once a day or fondaparinux 2.5 mg subcutaneously once a day) and treating for about 1 month.

Drugs Mentioned In This Article

Drug Name Select Trade
ARIXTRA
LOVENOX
PANHEPRIN
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