What term describes periods of acute cerebral insufficiency lasting less than 24 hours, without any residual deficits?

The term that describes periods of acute cerebral insufficiency lasting less than 24 hours, without any residual deficits, is Transient Ischemic Attack (TIA). A TIA occurs when there is a temporary decrease in blood flow to the brain, leading to neurological symptoms that resolve within a short time frame, typically within minutes to a few hours. The key characteristic of a TIA is that it does not result in permanent damage or lasting symptoms, distinguishing it from other conditions like a stroke, where symptoms may persist due to lasting brain injury.

Understanding that TIAs are warning signs of potential future strokes is crucial in clinical practice, as they indicate significant vascular disease and the need for preventive measures. The absence of residual deficits further emphasizes the transient nature of the ischemic event, highlighting its distinction from more severe cerebrovascular incidents. This knowledge aids in the management and treatment strategies for patients at risk of strokes.