title: The role of accessory obturator arteries in prostatic arterial embolization.
abstract: In 9 of 491 patients (1.8%) who underwent prostatic arterial embolization (PAE) for benign prostatic hyperplasia from March 2009-November 2013, prostatic arteries arose from the external iliac artery via an accessory obturator artery (AOA). Computed tomography angiography performed before the procedure identified the variant and allowed planning before the procedure. The nine AOAs were catheterized from a contralateral femoral approach. Bilateral PAE was technically successful in the nine patients. There was a mean decrease in international prostate symptom score of 6.5 points and a mean prostate volume reduction of 15.1% (mean follow-up, 4.8 mo) in the nine patients.
authors.affiliation: Departamentos Universitários de Anatomia, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Campo Mártires da Pátria 130, Lisbon, 1169-056; Interventional Radiology, Hospital Saint Louis, Lisbon. Electronic address: tiagobilhim@hotmail.com.
authors.forename: Tiago
authors.initials: T
authors.lastname: Bilhim
authors.affiliation: Interventional Radiology, Hospital Saint Louis, Lisbon.
authors.forename: Joao
authors.initials: J
authors.lastname: Pisco
authors.affiliation: Urologia, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Campo Mártires da Pátria 130, Lisbon, 1169-056; Urology Department, Hospital São José, Centro Hospitalar de Lisboa Central, Lisbon, Portugal.
authors.forename: Luís Campos
authors.initials: LC
authors.lastname: Pinheiro
authors.affiliation: Radiologia, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Campo Mártires da Pátria 130, Lisbon, 1169-056; Interventional Radiology, Hospital Saint Louis, Lisbon.
authors.forename: Hugo
authors.initials: H
authors.lastname: Rio Tinto
authors.affiliation: Radiologia, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Campo Mártires da Pátria 130, Lisbon, 1169-056; Interventional Radiology, Hospital Saint Louis, Lisbon.
authors.forename: Lúcia
authors.initials: L
authors.lastname: Fernandes
authors.affiliation: Interventional Radiology, Hospital Saint Louis, Lisbon.
authors.forename: José A
authors.initials: JA
authors.lastname: Pereira
mesh_terms: D000368:Aged; D015901:Angiography, Digital Subtraction; D001158:Arteries / Q000002:abnormalities; D004621:Embolization, Therapeutic / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011467:Prostate / Q000098:blood supply*; D011470:Prostatic Hyperplasia / Q000150:complications / Q000175:diagnosis / Q000628:therapy*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D054079:Vascular Malformations / Q000150:complications* / Q000175:diagnosis