(Stroke. 1999;30:1230-1233.)
© 1999 American Heart Association, Inc.
Original Contributions |
The Natural History of CADASIL
A Pooled Analysis of Previously Published Cases
Presented in part at the 50th Annual Meeting of the American Academy of Neurology, Minneapolis, Minn, May 1, 1998.
From the Departments of Neurology (D.W.D., J.T.M., T.L., J.P.M.), Radiology (S.C.), and Pathology (S.S.C.), Columbia University, College of Physicians and Surgeons, New York, NY.
Correspondence to Dr David W. Desmond, Neurological Institute, 710 W 168th St, New York, NY 10032. E-mail dwd2{at}columbia.edu
Background and Purpose—Although numerous families with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) have been reported, our understanding of the disease remains incomplete. Thus, we performed this study to investigate the phenotypic range and natural history of CADASIL.
Methods—We performed a pooled analysis of previously published cases.
Results—We identified 105 symptomatic patients in 33 families. Vascular risk factors were uncommon, with hypertension reported in only 8 patients. The mean age of symptom onset was 36.7±12.9 years. Stroke or transient ischemic attack was an initial symptom in 45 patients, with a mean age of onset of 41.2±9.2 years. Migraine was also a common initial symptom, reported by 42 patients at a younger mean age of 28.3±11.7 years. Other initial symptoms included depression in 9 patients, cognitive impairment in 6 patients, and seizures in 3 patients. Regarding clinical course, 71 patients experienced a stroke or transient ischemic attack, and 52 of those patients had 1 or more recurrent ischemic events. Dementia was reported in 44 patients. Only 3 additional patients experienced migraine at a later time, while 13 additional patients developed depression. Six patients had seizures. Twenty-two of the 105 patients had died, with a mean age of death of 54.8±10.6 years. Nineteen of those 22 patients had experienced a stroke or transient ischemic attack and 19 patients were demented.
Conclusions—CADASIL typically becomes evident in early or middle adulthood with migraine or an ischemic event, later manifests itself through recurrent subcortical ischemic strokes leading to a stepwise decline and dementia, and results in reduced survival.
Key Words: cerebral artery diseases • dementia • genetics • migraine • stroke
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