TIA for the Internist

The definition of TIA is changing. Previously, TIA was defined as a focal cerebral ischemic event with symptoms lasting less than 24 hours. As computed tomography and magnetic resonance imaging have become more widely used, up to one-third of patients with TIA have radiological evidence of acute inf...

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Veröffentlicht in:	The American journal of medicine 2014-10, Vol.127 (10), p.901-902
Hauptverfasser:	Zhu, Shuhan, MD, Perloff, Michael D., MD, PhD
Format:	Artikel
Sprache:	eng
Schlagworte:	Acute Disease Brain Infarction - diagnosis Brain Infarction - diagnostic imaging Definitions Female Heart attacks Humans Internal Medicine Internal Medicine - methods Ischemia Ischemic Attack, Transient - complications Ischemic Attack, Transient - diagnosis Ischemic Attack, Transient - pathology Male Middle Aged Neuroimaging - methods NMR Nuclear magnetic resonance Paresis - etiology Radiography Risk Assessment - methods Speech Disorders - etiology Stroke - etiology Stroke - prevention & control
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Beschreibung
Zusammenfassung:	The definition of TIA is changing. Previously, TIA was defined as a focal cerebral ischemic event with symptoms lasting less than 24 hours. As computed tomography and magnetic resonance imaging have become more widely used, up to one-third of patients with TIA have radiological evidence of acute infarction. Therefore, the definition of TIA is moving from time-based to tissue-based, as "a transient episode of neurological dysfunction caused by central nervous system ischemia without acute infarction." Here, Zhu and Perloff explain why TIAs require urgent investigation.
ISSN:	0002-9343 1555-7162
DOI:	10.1016/j.amjmed.2014.06.024