In peripheral artery disease with rest pain, bypass surgery provides symptom relief in approximately what percentage of patients?

• A. 80-90%
• B. 10-20%
• C. 40-50%
• D. 60-70%

Answer: (A)

Rest pain in PAD indicates severe, oxygen-deprived limb tissues. Restoring arterial blood flow through bypass surgery directly improves perfusion to the ischemic areas, alleviating the constant nocturnal pain that characterizes this stage. When blood flow is re-established, nerve and tissue oxygenation improve, often producing rapid relief of rest pain. In patients with suitable distal runoff and no prohibitive complications, bypass rerouting can relieve symptoms in about eighty to ninety percent of cases. The extent of relief depends on graft patency, the health of the downstream vessels, and overall limb viability; poorer run-off or extensive tissue damage can lessen the benefit.