[Varicose and ascending thrombophlebitis--surgical planning for emergency crossectomy by duplex ultrasound]

Ascending thrombophlebitis of the superficial leg veins is known to pass into the deep veins, causing an embolism to develop. Duplex ultrasonography has been shown to be a reliable technique for the evaluation of superficial venous thrombosis. If progression is noted, crossectomy proved to be effective in preventing passage of thrombi into the deep veins.