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General Surgery · Vascular surgery: varicose veins
Sample itemA 40-year-old woman has long saphenous varicose veins. With the leg elevated and emptied, a tourniquet is placed at the saphenofemoral junction. On standing, the veins stay empty for 30 seconds and then fill rapidly once the tourniquet is released. What does this indicate, and what is the usual treatment?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Saphenofemoral junction incompetence, treated by endovenous ablation or high ligation with stripping
In the Trendelenburg test, filling after release of the tourniquet (but not while it is applied) shows that reflux is through an incompetent saphenofemoral junction. Treatment is endovenous thermal ablation, foam sclerotherapy or high ligation with stripping, once deep venous patency has been confirmed on duplex scanning. Rapid filling while the tourniquet is on suggests incompetent perforators below it.
Option by option
A. Normal valves, with no treatment needed
The test shows reflux, so the valves are not normal.
B. Incompetent perforators in the calf only, treated by compression alone
Incompetent perforators would cause filling while the tourniquet is still applied.
C. Saphenofemoral junction incompetence, treated by endovenous ablation or high ligation with stripping (correct)
Correct. Delayed filling that is rapid after release localises the reflux to the saphenofemoral junction.
D. Deep vein occlusion, treated by saphenous vein ligation
Deep vein occlusion contraindicates removal of superficial veins, which may be the collateral drainage.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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