Table 1 Comparison of superficial venous networks with and without chronic deep femoral vein stricture.

From: Initiation of reticular and spider veins, incompetent perforantes and varicose veins in the saphenous vein network of the rat

  Control side Strictured side  
Number of reticular vein plaquesa 2 20 p < 0.01
Number of spider veinsa 0 9 p < 0.01
Deep vein blood surfaces at pressure (mmHg)b 11 ± 2.5 19.1 ± 3.2 n.s.
SMA staining on cross sectionc 56.5% 66.4% p < 0.01
Elastin (RF) staining on cross sectiond 58.2% 70.6% p < 0.01
Collagen staining on cross sectiond 54.5% 43.2% p < 0.01
  1. aPooled data, 11 animals, 14 weeks deep vein stricture, comparison with the Khi2 probe.
  2. b9 animals, 32 weeks deep vein stricture, comparison with one-way anova.
  3. cPooled data, 9 animals, 25 veins, 32 weeks deep vein stricture, high intensity staining measured as low blue, comparison of the frequency curves with the Khi2 probe.
  4. dPooled data, 9 animals, 25 veins, 32 weeks deep vein stricture, high intensity staining measured as low green,
  5. comparison of the frequency curves with the Khi2 probe.