Louvel's sign
Encyclopedia
Louvel's sign is a clinical sign
found in patients with deep vein thrombosis
. The sign is defined as pain in the distribution of the affected vein which occurs during coughing or sneezing (Valsalva maneuver
), and which disppears when the vein is compressed proximally.
Medical sign
A medical sign is an objective indication of some medical fact or characteristic that may be detected by a physician during a physical examination of a patient....
found in patients with deep vein thrombosis
Deep vein thrombosis
Deep vein thrombosis is the formation of a blood clot in a deep vein. Deep vein thrombosis commonly affects the leg veins or the deep veins of the pelvis. Occasionally the veins of the arm are affected...
. The sign is defined as pain in the distribution of the affected vein which occurs during coughing or sneezing (Valsalva maneuver
Valsalva maneuver
The Valsalva maneuver or Valsalva manoeuvre is performed by moderately forceful attempted exhalation against a closed airway, usually done by closing one's mouth and pinching one's nose shut...
), and which disppears when the vein is compressed proximally.