Ascending thrombophlebitis of the superficial leg reins is known to pr
opagate into the deep leg veins and to embolize. In a prospective stud
y we followed up 44 patients with sonographically diagnosed ascending
thrombophlebitis into the deep veins (V. saphena magna n=40, V. saphen
a parva n=4). In 15 of 44 cases (34%) thrombosis of the crossing veins
was found intraoperatively and 6 of 44 crossings were filled with flo
ating thrombi into the deep vein lumina (14%). Among complications of
treatment (11,4%) recurrence of thrombi in the ligated superficial res
idual vein stump was seen in 2 of 44 cases. One of these patients suff
ered a symptomatic, non-fulminant pulmonary embolism. The other patien
t developed a femoral vein thrombosis. 1 patient had an abscess and 1
a seroma of the groin. In 11% of all cases ascending thrombophlebitis
diagnosed duplexsonographically was not verified intraoperatively. Alt
hough crossectomy proved to be effective in preventing propagation of
thrombi into the deep veins thromboembolism remains a complication of
ascending thrombophlebitis.