Biomaterial Database

Acute visual loss in an orbital arteriovenous malformation. 2013

Yin Niu, and Hongping Miao, and Gang Zhu, and Zhi Chen

Department of Neurosurgery, Third Military Medical University, Chongqing, China.

Arteriovenous malformations (AVMs) of the orbit are rare and are thought to be congenital. They can grow slowly or in a delayed fashion after a prolonged period of quiescence if there is a hemodynamic balance between the in-flow and the out-flow vessels. However, once the balance is destroyed, orbital AVMs may cause acute visual deterioration. We report a 17-year-old male with orbital AVM, and discuss the mechanism and the management of acute visual deterioration in this setting. Angiography revealed an orbital AVM with obvious drainage obstruction and serious orbital congestion, due to the disruption of the balance. He had no vision improvement although treated successfully with radical transarterial embolization. The worsening of drainage obstruction could alter the hemodynamic flow and lead to acute visual deterioration. Early and exact diagnosis and complete transarterial embolization therapy are important before the hemodynamic imbalance.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D002533	Cerebral Angiography	Radiography of the vascular system of the brain after injection of a contrast medium.	Angiography, Cerebral,Angiographies, Cerebral,Cerebral Angiographies
D002538	Intracranial Arteriovenous Malformations	Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect.	Arteriovenous Malformations, Cerebral,Intracranial Arteriovenous Malformations, Congenital,AVM (Arteriovenous Malformation) Intracranial,Cerebral Arteriovenous Malformations,Congenital Intracranial Arteriovenous Malformations,Intracranial Arteriovenous Malformation, Ruptured,Ruptured Intracranial Arteriovenous Malformation,Arteriovenous Malformation, Cerebral,Arteriovenous Malformation, Intracranial,Arteriovenous Malformations, Intracranial,Cerebral Arteriovenous Malformation,Intracranial Arteriovenous Malformation,Malformation, Cerebral Arteriovenous,Malformation, Intracranial Arteriovenous,Malformations, Cerebral Arteriovenous,Malformations, Intracranial Arteriovenous
D002560	Cerebrovascular Circulation	The circulation of blood through the BLOOD VESSELS of the BRAIN.	Brain Blood Flow,Regional Cerebral Blood Flow,Cerebral Blood Flow,Cerebral Circulation,Cerebral Perfusion Pressure,Circulation, Cerebrovascular,Blood Flow, Brain,Blood Flow, Cerebral,Brain Blood Flows,Cerebral Blood Flows,Cerebral Circulations,Cerebral Perfusion Pressures,Circulation, Cerebral,Flow, Brain Blood,Flow, Cerebral Blood,Perfusion Pressure, Cerebral,Pressure, Cerebral Perfusion
D004621	Embolization, Therapeutic	A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage.	Embolotherapy,Therapeutic Embolization,Embolizations, Therapeutic,Embolotherapies,Therapeutic Embolizations
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006940	Hyperemia	The presence of an increased amount of blood in a body part or an organ leading to congestion or engorgement of blood vessels. Hyperemia can be due to increase of blood flow into the area (active or arterial), or due to obstruction of outflow of blood from the area (passive or venous).	Active Hyperemia,Arterial Hyperemia,Passive Hyperemia,Reactive Hyperemia,Venous Congestion,Venous Engorgement,Congestion, Venous,Engorgement, Venous,Hyperemia, Active,Hyperemia, Arterial,Hyperemia, Passive,Hyperemia, Reactive,Hyperemias,Hyperemias, Reactive,Reactive Hyperemias
D000208	Acute Disease	Disease having a short and relatively severe course.	Acute Diseases,Disease, Acute,Diseases, Acute
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D014786	Vision Disorders	Visual impairments limiting one or more of the basic functions of the eye: visual acuity, dark adaptation, color vision, or peripheral vision. These may result from EYE DISEASES; OPTIC NERVE DISEASES; VISUAL PATHWAY diseases; OCCIPITAL LOBE diseases; OCULAR MOTILITY DISORDERS; and other conditions (From Newell, Ophthalmology: Principles and Concepts, 7th ed, p132).	Hemeralopia,Macropsia,Micropsia,Day Blindness,Metamorphopsia,Vision Disability,Visual Disorders,Visual Impairment,Blindness, Day,Disabilities, Vision,Disability, Vision,Disorder, Visual,Disorders, Visual,Hemeralopias,Impairment, Visual,Impairments, Visual,Macropsias,Metamorphopsias,Micropsias,Vision Disabilities,Vision Disorder,Visual Disorder,Visual Impairments