title: Orbital herniation associated with noninvasive positive pressure ventilation.
abstract: A diagnosis of severe obstructive sleep apnea was made after a 52-year-old hypertensive man developed a large intracranial hemorrhage. Therapeutic noninvasive positive pressure ventilation (NPPV) for obstructive sleep apnea and hypoventilation was complicated by transient unilateral orbital herniation. As best as can be determined, this represents a new, potentially deleterious side effect of NPPV.
authors.affiliation: Department of Medicine, and Sleep Disorders Center, The Lankenau Hospital and Medical Research Center, Wynnewood, Pa, USA.
authors.forename: D
authors.initials: D
authors.lastname: Lazowick
authors.forename: T J
authors.initials: TJ
authors.lastname: Meyer
authors.forename: M
authors.initials: M
authors.lastname: Pressman
authors.forename: D
authors.initials: D
authors.lastname: Peterson
mesh_terms: D002543:Cerebral Hemorrhage / Q000150:complications; D006547:Hernia / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009916:Orbital Diseases / Q000209:etiology*; D011175:Positive-Pressure Respiration / Q000009:adverse effects*; D012891:Sleep Apnea Syndromes / Q000150:complications / Q000628:therapy