Jw. Jaffe et al., VENOUS VALVULAR ASSESSMENT AFTER RETROGRADE CATHETERIZATION, Journal of vascular and interventional radiology, 7(4), 1996, pp. 595-597
PURPOSE: To determine whether retrograde passage of a coaxial infusion
system (Mewissen-Katzen catheter and guide wire) into extremity veins
with valves causes damage. MATERIALS AND METHODS: Retrograde common f
emoral vein puncture and passage of an infusion wire-catheter system t
hrough the superficial femoral and popliteal veins of one leg were per
formed in five anesthetized pigs. Heparinized saline was then infused
via the catheter and wire for approximately 8 hours. The pigs were the
n killed, and the femoropopliteal veins were removed from both legs of
each pig and examined by a pathologist. The noncatheterized leg veins
served as a control in each animal. RESULTS: Valvular damage occurred
in one of five pigs. This may have resulted from leg movement during
catheter passage in this animal. CONCLUSION: Retrograde passage of a c
atheter-guide-wire infusion system caused minimal to no damage to the
venous valves of pigs. This suggests that human venous valves may be s
pared injury during catheter-directed venous thrombolysis. Further stu
dy of catheter manipulation in a model of deep venous thrombosis is ne
eded.