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(Stroke. 1998;29:123-125.)
© 1998 American Heart Association, Inc.

Original Contributions

Frequency of Cerebral Arteritis in Subarachnoid Cysticercosis

An Angiographic Study

Fernando Barinagarrementeria, MD; Carlos Cantú, MD

From the Stroke Clinic, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico.

Correspondence to Fernando Barinagarrementeria, MD, Stroke Clinic, Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez, Insurgentes Sur 3877, Tlalpan 41269, Mexico City, Mexico

Background and Purpose—Subarachnoid cysticercosis is a well-recognized cause of cerebral infarction. However, few patients with this infection develop cerebral infarction, and the reason for this is not known. The aim of this study was to determine the frequency of cerebral arteritis in these patients.

Methods—Using cerebral arteriography, we studied 28 patients with subarachnoid cysticercosis admitted to our hospital from July 1993 to February 1996. All patients underwent MRI to detect the presence of basal arachnoiditis. We analyzed demographic data, time to cysticercosis since the first symptom onset, mode of onset, stroke syndromes, neuroimaging features of cysticercosis and cerebral infarction, and arteriographic findings for each patient.

Results—Of the 28 patients (mean age, 37 years), 15 patients had angiographic evidence of cerebral arteritis (53%); 12 of the 15 had a stroke syndrome (P=.02). Eight of the 15 patients (53%) with cerebral arteritis had evidence of cerebral infarction on MRI, whereas only one patient without cerebral arteritis had cerebral infarction (P=.05). The most commonly involved vessels were the middle cerebral artery and the posterior cerebral artery.

Conclusions—The frequency of cerebral arteritis in subarachnoid cysticercosis is higher than previously reported, and middle-size vessel involvement is a common finding, even in those patients without clinical evidence of cerebral ischemia.

Key Words: arteritis • cerebral infarction • cysticercosis • meningitis

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