Pratt's sign

Pratt's sign is an indication of femoral deep vein thrombosis. It is seen as the presence of dilated pretibial veins in the affected leg, which remain dilated on raising the leg.

Pratt's sign
Differential diagnosisfemoral deep vein thrombosis

The sign was described by American surgeon Gerald H. Pratt (1928–2006) of St. Vincent's Hospital in 1949.[1][2]

This is not the same as the Pratt Test, which checks for a DVT by compressing a vein with the hands.

References
  1. PRATT GH (June 1949). "An early sign of femoral thrombosis". J Am Med Assoc. 140 (5): 476. PMID 18129854.
  2. PRATT GH (May 1950). "Classification and treatment of the varicose, post-thrombotic, and arterial venous problems". Bull N Y Acad Med. 26 (5): 306–28. PMC 1929948. PMID 15411581.


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