title: Uterine fibroid embolization with acrylamido polyvinyl microspheres: prospective 12-month clinical and MRI follow-up study.
abstract: Background Uterine fibroid embolization (UFE) is an effective minimally invasive treatment aimed to obtain complete fibroid infarction. Purpose To evaluate the degree of fibroid infarction after embolization with acrylamido polyvinyl alcohol microspheres (Bead Block). Material and Methods This prospective study included 26 pre-menopausal women in the period October 2013 to January 2015. UFE with the use of Bead Block microspheres 700-900 µm was obtained until flow stasis was achieved. Contrast-enhanced magnetic resonance imaging (MRI) was used to define residual contrast enhancement in the total fibroid burden and enhancement >10% was defined as insufficient embolization. The dominant fibroid volume and total uterine volume changes were assessed. Clinical outcome was analyzed using the quality of life questionnaire (UFS-QOL). Results Twenty-four of the 26 patients (92%) had a technically successful UFE with complete flow-stop in both uterine arteries. Twenty-two of the 26 patients (85%) completed 3 months of MRI control and 20 patients (77%) completed 12 months of MRI control. There were 16 of 22 patients (73%) with complete fibroid burden infarction and/or without residual contrast enhancement of the fibroids of more than 10% at 3 months of control. Six of 22 patients (27%) had insufficient fibroid burden infarction with residual contrast enhancement of more than 10%. Twenty-two and 18 of 26 patients completed the 3-month and 12-month questionnaire, respectively. UFS-QOL analyses showed that 91% of the patients had significant clinical improvement. Conclusion Sixteen of the 22 patients had complete fibroid burden infarction using Bead Block microspheres (700-900 µm); however, unacceptably high insufficient fibroid burden infarction in almost one-fourth of the patients were recorded.
authors.affiliation: 1 Department of Radiology, Odense University Hospital, Odense, Denmark.|2 OPEN, Odense Patient Data Explorative Network, Odense University Hospital/University of Southern Denmark, Odense, Denmark.
authors.forename: Stevo
authors.initials: S
authors.lastname: Duvnjak
authors.affiliation: 3 Department of Gynecology and Obstetrics, Odense University Hospital, Odense, Denmark.
authors.forename: Pernille
authors.initials: P
authors.lastname: Ravn
authors.affiliation: 2 OPEN, Odense Patient Data Explorative Network, Odense University Hospital/University of Southern Denmark, Odense, Denmark.
authors.forename: Anders
authors.initials: A
authors.lastname: Green
authors.affiliation: 1 Department of Radiology, Odense University Hospital, Odense, Denmark.
authors.forename: Poul Erik
authors.initials: PE
authors.lastname: Andersen
mesh_terms: D000180:Acrylic Resins / Q000008:administration & dosage*; D000328:Adult; D003287:Contrast Media; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D005780:Gelatin / Q000008:administration & dosage*; D006801:Humans; D007889:Leiomyoma / Q000628:therapy*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008863:Microspheres; D008875:Middle Aged; D011142:Polyvinyl Alcohol / Q000008:administration & dosage*; D011446:Prospective Studies; D011788:Quality of Life; D014594:Uterine Neoplasms / Q000628:therapy*
chemical_list: D000180:Acrylic Resins; D003287:Contrast Media; D005780:Gelatin; D011142:Polyvinyl Alcohol
keywords: Uterine fibroid embolization (UFE); acrylamide polyvinyl alcohol microspheres; embolic agent; fibroid; magnetic resonance imaging (MRI)