Risk of rupture of postangiographic femoral false aneurysm

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Abstract
The surgical management of 50 false aneurysms caused by transfemoral arterial catheterization was reviewed to document the incidence and effects of rupture before repair. Twelve false aneurysms ruptured, leading to shock in six patients, distal ischaemia in three and stroke in one. The mean(s.d.) time, from catheterization to rupture was 2.8(1.7) (range 1‐6) days. Postoperative complications occurred in seven patients with ruptured and eight with non‐ruptured aneurysms (P < 0.04). The mean(s.d.) age of patients with ruptured aneurysms was 67.2(6.3) (95 per cent confidence interval 63.5—70.8) years and those without 58.5(9.1) (95 per cent confidence interval 55.3—61.7) years (P < 0.008). On multiple regression analysis, age, peripheral vascular disease and raised plasma liver enzyme levels on admission were found to be significant independent predictive variables for rupture (all P < 0.05). It is recommended that patients with these risk factors undergo urgent operative correction of femoral false aneurysm.