title: Ventrolateral medullary compression in hypertensive patients with hemifacial spasm.
abstract: In a patient-controlled study, the authors demonstrated a significantly higher prevalence of rostral ventrolateral medulla (VLM) compression in hypertensive patients with hemifacial spasm (HFS) compared with age-, sex-, race-, disease duration-, and disease severity-matched normotensive patients with HFS (p = 0.02). Hypertensive HFS patients were more likely to have a greater severity of neurovascular compression at the VLM compared with normotensive HFS patients (p = 0.008). VLM compression is associated with risk of hypertension in this study population.
authors.affiliation: Department of Diagnostic Radiology, Singapore General Hospital, Republic of Singapore.
authors.forename: L L
authors.initials: LL
authors.lastname: Chan
authors.forename: Y L
authors.initials: YL
authors.lastname: Lo
authors.forename: E
authors.initials: E
authors.lastname: Lee
authors.forename: S
authors.initials: S
authors.lastname: Fook-Chong
authors.forename: E K
authors.initials: EK
authors.lastname: Tan
mesh_terms: D000328:Adult; D000368:Aged; D001488:Basilar Artery / Q000473:pathology / Q000503:physiopathology; D001794:Blood Pressure / Q000502:physiology; D001933:Brain Stem / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology*; D015984:Causality; D015897:Comorbidity; D004525:Efferent Pathways / Q000503:physiopathology; D005154:Facial Nerve / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology; D005260:Female; D019569:Hemifacial Spasm / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology*; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology*; D015994:Incidence; D002546:Ischemic Attack, Transient / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology*; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012154:Reticular Formation / Q000503:physiopathology; D013564:Sympathetic Nervous System / Q000503:physiopathology; D014711:Vertebral Artery / Q000473:pathology / Q000503:physiopathology*; D014715:Vertebrobasilar Insufficiency / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology*