We were pleased to read the article by Moncayo et al1 and the editorial by Caplan2 in the August issue of the ARCHIVES. The topic of concurrent mechanisms for stroke is one on which we have done pioneering work in the last 4 years.3- 9 We therefore take issue with the statement of Moncayo et al that "Multiple potential causes of cerebral infarct seem rather uncommon, although the subject has not been systematically investigated."
Helgason CM, Jobe TH. Coexisting Causes of Ischemic Stroke. Arch Neurol. 2001;58(4):676. doi: