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Year : 2022  |  Volume : 38  |  Issue : 4  |  Page : 296-301

Percutaneous embolization of renal pseudoaneurysms: A retrospective study

1 Department of Radiology, Hasheminejad Kidney Center, Iran University of Medical Sciences, Tehran, Iran
2 Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Mohammadreza Chavoshi
Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/iju.iju_109_22

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Introduction: We evaluated the efficacy of the mixture of autologous blood and a hemostatic agent, oxidized regenerative cellulose (ORC), as an alternative material for ultrasound (US)-guided percutaneous embolization of renal pseudoaneurysm (PA). Methods: In this retrospective study, consecutive patients diagnosed with renal PA were included. The exclusion criteria were: PA of the main renal artery, tiny PA not visualized on the colour doppler ultrasonography, PA more than 3 cm in max diameter or extracapsular PA with the possibility of massive bleeding, and patients with a history of coagulation disorders. After localizing the PA, a mixture of autologous blood and ORC was injected under US guidance with a 15G coaxial needle. Patients were followed up for at least 6 months. Results: Twenty-nine patients with PA were included, of which 26 had a history of percutaneous nephrolithotomy, and three patients had a history of renal biopsy (24 men and five women with an average age of 44.3 years). Gross hematuria was the most common mode of presentation. The mean size of the PA was 16.6 mm and the mean duration of follow-up was 9 months. The clinical and the technical success rate was 100%. The PA could be thrombosed in all the patients with a single-session of injection. No acute (hematoma, infection, and bleeding) or chronic (thromboembolic events, renal cortical atrophy, and recurrence) complications were seen. Conclusion: Percutaneous embolization of renal PA under US guidance with a mixture of autologous blood and ORC is an efficient and easily available first-line method to treat this potentially life-threatening condition when endovascular embolization or other expensive thrombotic agents are not available.

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