What is the restenosis rate associated with POBA?

What is the restenosis rate associated with POBA?

• A. >50%
• B. <20%
• C. <8%
• D. 30-40%

Answer: (A)

Plain balloon angioplasty causes vessel wall injury without leaving a scaffold, so the vessel often recoils and neointimal hyperplasia occurs. This combination drives a high rate of restenosis, especially in the first 6 months to a year. Historically, restenosis after POBA is commonly reported as being greater than half of treated segments, i.e., more than 50%. That’s why the option indicating >50% best captures the typical outcome with POBA. The other options are too low to describe the usual restenosis risk with plain balloon angioplasty.

Plain balloon angioplasty causes vessel wall injury without leaving a scaffold, so the vessel often recoils and neointimal hyperplasia occurs. This combination drives a high rate of restenosis, especially in the first 6 months to a year. Historically, restenosis after POBA is commonly reported as being greater than half of treated segments, i.e., more than 50%. That’s why the option indicating >50% best captures the typical outcome with POBA. The other options are too low to describe the usual restenosis risk with plain balloon angioplasty.