By how much did limb salvage rates increase for up to four years after direct revascularization?

By how much did limb salvage rates increase for up to four years after direct revascularization?

• A. 15%
• B. 30%
• C. 5%
• D. 25%

Answer: (D)

Direct revascularization restores direct arterial inflow to the limb, improving perfusion and tissue oxygenation, which reduces the likelihood of tissue loss and amputation. Over a follow-up period of up to four years, the benefit shown is a roughly 25 percentage point increase in limb salvage rates, indicating a durable improvement. In practical terms, if the baseline salvage rate were around 40%, it would commonly rise to about 65% after this intervention. The other options describe smaller or larger changes that don’t fit the typical long-term magnitude observed.

Direct revascularization restores direct arterial inflow to the limb, improving perfusion and tissue oxygenation, which reduces the likelihood of tissue loss and amputation. Over a follow-up period of up to four years, the benefit shown is a roughly 25 percentage point increase in limb salvage rates, indicating a durable improvement. In practical terms, if the baseline salvage rate were around 40%, it would commonly rise to about 65% after this intervention. The other options describe smaller or larger changes that don’t fit the typical long-term magnitude observed.