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Table 1 Postoperative asymptomatic distal DVT at ultrasonography, grouped according to size, and distribution of prophylaxis/placebo within each group

From: A follow-up study of the fate of small asymptomatic deep venous thromboses

 

Patients with DVT (n= 46)

Prophylaxis/placebo 21/25

1. Isolated calf muscular vein

5 (11%)

2/3

2. One deep calf vein stem †

24 (52%)

13/11

3. Two or more deep calf veins ‡

17 (37%)

6/11

  1. † In 19 patients in a fibular vein, in 5 patients in a posterior tibial vein.
  2. ‡ Includes one patient with a muscular vein DVT that during the immobilisation period progressed into calf veins and popliteal vein (see Table 2 - Patient nr 7)