This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
One of the main disadvantage of stenting is: March 2008 
Select and explain. 
A. Elastic recoil, B. Late stent thrombosis, C. Restenosis, D. Less efficacy in bifurcation lesions
B: Late stent thrombosis
Answer: B: Late stent thrombosis 
Explanation: Ans. B: Late stent thrombosis About 1-2% of people with a stent develop a blood clot at the stent site. Blood clots can cause strokes, hea attacks, and other serious problems. The risk of blood clots is greatest during the first few months after the stent is placed in the aery extending upto three years after implantation. Drug-coated stents may increase the risk of developing blood clots. It is thus standard practice to prolong dual antiplatelet therapy (Aspirin and Clopidogrel) for at least 12 months after placement of a drug eluting stent.