In coronary stenting, what is the rationale for dual antiplatelet therapy and how does stent type influence duration?

In coronary stenting, what is the rationale for dual antiplatelet therapy and how does stent type influence duration?

• A. To prevent stent thrombosis by inhibiting platelet aggregation; drug-eluting stents (DES) generally require 6-12 months of DAPT, while bare-metal stents (BMS) typically require 1-3 months, depending on bleeding risk.
• B. To reduce restenosis by lowering cholesterol; DES requires shorter duration than BMS.
• C. To prevent infection after PCI; duration is the same for DES and BMS.
• D. To manage blood pressure during PCI; stent type doesn't affect DAPT duration.

Answer: (A)