Objective: For treatment of infected femoral artery pseudoaneurysms (IFAPs) with the covered stent, debridement technique is important but frequently ignored. Our study aims to review our experience and outcomes of patients undergoing covered stents placement and debridement with vacuum sealing drainage (VSD).
Methods: This study retrospectively analyzed 41 intravenous drug addicts with IFAP who received covered stent implantation and debridement with VSD from January 2015 to December 2020. The diagnosis was based on the previous history of local injection and the presence of pulsatile mass at the injection site. All cases were confirmed by CT angiography (CTA), ultrasound, or digital subtraction angiography (DSA). Technical success, time of wound care, and clinical outcomes were evaluated.
Results: Technical success was achieved in all patients. The interval from diagnosis to treatment was 26 ± 11 hours. The time of continuous drainage with VSD was 18.79 ± 6.56 days. 38 patients (92.68%) with fresh granulation tissue were sutured and discharged from the hospital. Stents in 31(91.18%) of 34 cases were patent during follow-ups. Three patients had stent occlusion caused by thrombosis, and two of them were complicated with stent infection. The two infectious stents were removed and the femoral arteries were ligated. One of them received open-surgical reconstruction with the great saphenous because of claudication. Two patients were admitted to the hospital for rebleeding caused by drug abuse relapse.
Conclusions: Covered stents placement is convenient and rapid to control massive hemorrhage in IFAPs of intravenous drug abuse. Early debridement of infected tissue with continued VSD may shorten the time of wound care and make the incidence of stent infection relatively low. Meanwhile, the patency in a short time follow-up is acceptable. These results indicate that covered stents implantation with VSD may be a safe, effective, and feasible measure for the treatment of IFAPs.
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