Abstract
The artery of Percheron is a rare anatomic variation in the brain vascularization, in which a single arterial trunk arises from the posterior cerebral artery to supply both sides of brain structures, i.e., the thalamus and midbrain. Occlusion of this uncommon vessel results in a characteristic pattern of bilateral paramedian thalamic infarcts with or without mesencephalic infarctions. We report the case of a Caucasian woman who completely recovers after transient coma due to Percheron artery infarction.
Highlights
The artery of Percheron (AOP) is a rare anatomic variation in the brain vascularization, in which a single arterial trunk arises from the posterior cerebral artery (PCA) to supply both sides of brain structures, i.e., the thalamus and midbrain
We report the case of a Caucasian woman who completely recovers after transient coma due to Percheron artery infarction
In a recent review of literature, the authors concluded that thrombolysis and intravenous heparin were effective first-line treatment options for emergent uncomplicated AOP occlusion followed by prescription of long-term anticoagulants, while non-emergent cases without midbrain involvement could be treated through rehabilitation and continual monitoring by medical staff (19)
Summary
The artery of Percheron (AOP) is a rare anatomic variation in the brain vascularization, in which a single arterial trunk arises from the posterior cerebral artery (PCA) to supply both sides of brain structures, i.e., the thalamus and midbrain Occlusion of this uncommon vessel results in a characteristic pattern of bilateral paramedian thalamic infarcts with or without mesencephalic infarctions. Her history was unremarkable, except for arterial hypertension and a previous surgical intervention for the left popliteal aneurism. Brain computed tomography (CT), blood examinations, and electrocardiogram all performed in the emergency department were all normal After an hour, her state of consciousness improved spontaneously and the patient became alert and cooperative. Her state of consciousness improved spontaneously and the patient became alert and cooperative Her neurological examination became unremarkable except for mild bilateral limitation in upward gaze.
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