title: Stretched and sheared microcatheter retained after onyx embolization of infantile myofibromatosis.
abstract: We describe a rare neurointerventional complication, namely a stretched and sheared microcatheter, extending 52 cm from its point of retention within an Onyx cast in an infant patient's neck mass, to the groin. The tumor was an unusual manifestation of infantile myofibromatosis and prior attempts at resection had proven impossible due to bleeding. Recommendations regarding microcatheter selection, diagnostic workup, and management of the ensuing complication are given.
authors.affiliation: Children's Hospital Boston, MA, United States.
authors.forename: A S
authors.initials: AS
authors.lastname: Puri
authors.forename: R
authors.initials: R
authors.lastname: Rahbar
authors.forename: J
authors.initials: J
authors.lastname: Dearden
authors.forename: R J
authors.initials: RJ
authors.lastname: Graham
authors.forename: C
authors.initials: C
authors.lastname: Lillehei
authors.forename: D B
authors.initials: DB
authors.lastname: Orbach
mesh_terms: D002404:Catheterization / Q000009:adverse effects / Q000295:instrumentation; D020878:Device Removal; D004121:Dimethyl Sulfoxide / Q000627:therapeutic use; D004621:Embolization, Therapeutic / Q000009:adverse effects* / Q000379:methods; D005547:Foreign Bodies / Q000000981:diagnostic imaging* / Q000601:surgery; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy*; D006801:Humans; D007231:Infant, Newborn; D018224:Myofibromatosis / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy*; D011145:Polyvinyls / Q000627:therapeutic use; D011300:Preoperative Care / Q000009:adverse effects*; D011859:Radiography
chemical_list: C450660:Onyx copolymer; D011145:Polyvinyls; D004121:Dimethyl Sulfoxide