title: Vascular injuries after percutaneous renal procedures: treatment by transcatheter embolization.
abstract: Percutaneous renal procedures have become the standard technique for diagnosis and treatment of a number of renal pathologies. Hemorrhage and vascular lesions are the most serious complications. We report our experience with 15 patients treated by hyperselective vascular embolization. Fifteen patients (10 men and 5 women; mean age 55 years) had severe perioperative hemorrhage after percutaneous renal procedures, due to arterial renal major injury. All patients underwent duplex US, CT, and renal arteriography demonstrating the presence of arteriovenous fistulas (n=2), renal hematoma (n=3), pseudoaneurysms (n=3), and hematoma with pseudoaneurysm (n=7). Four patients showed transient renal dysfunction, with an increase in serum creatinine levels. One patient had a solitary transplanted kidney. Hyperselective arterial embolization was performed successfully by means of coils (n=14), associated with gelfoam in 4 cases; homologous blood clot was used in 1 patient. No major complications occurred, and renal function rapidly normalized in the 4 patients with transient renal failure. Imaging follow-up confirmed the successful devascularization of the lesion. Renal arterial hemorrhage following percutaneous procedures is a rare but severe complication. Hyperselective renal artery embolization, with particles and/or coils, represents the first-choice treatment option, being safe and effective in stopping the bleeding.
authors: Division of Diagnostic and Interventional Radiology, Department of Oncology, Transplants and Advanced Technologies in Medicine, University of Pisa, Via Roma 67, 56126 Pisa, Italy. cvignali@med.unipi.it
authors: Claudio
authors: C
authors: Vignali
authors: Simone
authors: S
authors: Lonzi
authors: Irene
authors: I
authors: Bargellini
authors: Roberto
authors: R
authors: Cioni
authors: Pasquale
authors: P
authors: Petruzzi
authors: Davide
authors: D
authors: Caramella
authors: Carlo
authors: C
authors: Bartolozzi
mesh_terms: D015901:Angiography, Digital Subtraction; D002404:Catheterization; D003287:Contrast Media; D004621:Embolization, Therapeutic; D005260:Female; D006470:Hemorrhage / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015641:Radiography, Interventional; D012077:Renal Artery / Q000000981:diagnostic imaging / Q000293:injuries*; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D003287:Contrast Media