Infra-inguinal aneurysms: Outcome for patient and limb

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Abstract
The outcome of conservative treatment of infra-inguinal (femoral and popliteal) aneurysms was compared with that following vascular reconstruction. Over a 12-year period up to December 1988, 43 femoral aneurysms and 35 popliteal aneurysms presented to the Oxford Regional Vascular Service; 88 per cent of the femoral and 60 per cent of the popliteal aneurysms were treated by vascular reconstruction. The outcome was assessed in terms of limb symptoms or preservation and patient survival at the most recent point of follow-up (median 4·5 years). At least 12 of the 13 initially asymptomatic femoral and popliteal aneurysms which were untreated remained asymptomatic. In contrast, six of the 26 limbs with asymptomatic femoral aneurysms and three of the 11 limbs with asymptomatic popliteal aneurysms developed significant distal ischaemia after vascular reconstruction; four limbs came to amputation after intervention. Aggressive surgical management of all asymptomatic infra-inguinal aneurysms is unjustified and dangerous.

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