title: Orbital Floor Fracture with Atypical Extraocular Muscle Entrapment Pattern and Intraoperative Asystole in an Adult.
abstract: Extraocular muscle entrapment in a nondisplaced orbital fracture, although a well-known entity in pediatric trauma, is atypical in adults. It can present with a triad of bradycardia, nausea, and in rare cases, syncope, and result in severe fibrosis of damaged and incarcerated muscle. We present a case of muscle entrapment in a partially nondisplaced two-wall orbital fracture with accompanying preoperative bradycardia and intraoperative asystole in an adult.
authors.affiliation: Johns Hopkins University, Wilmer Ophthalmological Institute, Baltimore, Maryland.
authors.forename: Farhan I
authors.initials: FI
authors.lastname: Merali
authors.affiliation: Johns Hopkins University, Wilmer Ophthalmological Institute, Baltimore, Maryland.
authors.forename: Michael P
authors.initials: MP
authors.lastname: Grant
authors.affiliation: Johns Hopkins University, Wilmer Ophthalmological Institute, Baltimore, Maryland.
authors.forename: Nicholas R
authors.initials: NR
authors.lastname: Mahoney
keywords: adult trapdoor fracture; extraocular muscle entrapment; orbital fracture