Abstract
Sudden, severe, and life-threatening, the crises associated with baroreflex failure are diagnostically challenging, particularly in children, a population in which it has rarely been described. The baroreflex failure syndrome results from impaired afferent baroreceptive input and manifests with autonomic stimulation-induced surges in blood pressure and heart rate accompanied by distinct signs, including thunderclap headache, diaphoresis, and emotional instability. Although the adult literature includes cases of severe headache in baroreflex failure,(1) (,) (2) we present the first case of a child with recurrent thunderclap headache and cerebral vasospasm with baroreflex failure secondary to vascular complications of a rare genetic connective tissue disorder.
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