与软脑膜强化相关的医源性皮质盲
Iatrogenically induced cortical blindness associated with leptomeningeal enhancement.
作者信息
Petrus L V, Lois J F, Lo W W
机构信息
Department of Radiological Sciences, Olive View-UCLA Medical Center, Sylmar, CA 91342, USA.
出版信息
AJNR Am J Neuroradiol. 1998 Sep;19(8):1522-4.
Abstract
Leptomeningeal enhancement is usually infective or neoplastic in origin. We present a case in which a patient received total parenteral nutrition via a catheter unknowingly placed within the right vertebral artery. We postulate that the hyperosmolar nature of the infused solution induced temporary osmotic disruption of the blood-brain barrier, resulting in cortical blindness associated with localized leptomeningeal enhancement.
摘要
软脑膜强化通常源于感染或肿瘤。我们报告一例患者，其在不知情的情况下通过置于右椎动脉内的导管接受了全胃肠外营养。我们推测，输注溶液的高渗性质导致血脑屏障暂时渗透性破坏，从而导致与局限性软脑膜强化相关的皮质盲。
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