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(Stroke. 2001;32:649.)
© 2001 American Heart Association, Inc.

Original Contributions

Transtentorial Herniation After Unilateral Infarction of the Anterior Cerebral Artery

Stefanie Leistner, MD; Friedrich Boegner, MD; Peter Marx, MD Hans-Christian Koennecke, MD

From the Department of Neurology, Stroke Unit, Universitätsklinikum Benjamin Franklin, Freie Universität Berlin, Berlin, Germany.

Correspondence to Hans-Christian Koennecke, MD, Department of Neurology, Stroke Unit, Universitätsklinikum Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany. E-mail h.koennecke{at}keh-berlin.de

Background—Fatal cerebral herniation is a common complication of large ("malignant") middle cerebral artery infarcts but has not been reported in unilateral anterior cerebral artery (ACA) infarction.

Case Description—We report a 47-year-old woman who developed an acute left hemiparesis during an attack of migraine. Cranial CT (CCT) was normal but demonstrated narrow external cerebrospinal fluid compartments. Transcranial Doppler sonography was compatible with occlusion of the right ACA. Systemic thrombolytic therapy with tissue plasminogen activator was initiated 105 minutes after symptom onset. Follow-up CCT 24 hours after treatment revealed subtotal ACA infarction with hemorrhagic conversion. Two days later, the patient suddenly deteriorated with clinical signs of cerebral herniation, as confirmed by CCT. An extended right hemicraniectomy was immediately performed. Within 6 months, the patient regained her ability to walk but remained moderately disabled.

Conclusions—This is the first reported case of unilateral ACA infarct leading to almost fatal cerebral herniation. Narrow external cerebrospinal fluid compartments in combination with early reperfusion, hemorrhagic transformation, and additional dysfunction of the blood-brain barrier promoted by tissue plasminogen activator and migraine may have contributed to this unusual course.

Key Words: brain edema • migraine • stroke, ischemic • thrombolysis

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