Cerebral infarction in patients with transient ischemic attacks.

Area of Science:

• Neurology
• Radiology
• Vascular Medicine

Background:

• Transient ischemic attacks (TIAs) are critical warning signs for future stroke.
• Cranial computed tomography (CT) is a key diagnostic tool for evaluating TIAs.
• Identifying cerebral infarction in TIA patients is crucial for risk stratification.

Purpose of the Study:

• To evaluate the utility of cranial computed tomography in detecting cerebral infarction in patients with TIAs.
• To determine the relationship between lesion location and TIA symptoms.
• To identify patient factors associated with the detection of cerebral infarction.

Main Methods:

• Cranial computed tomography scans of 284 patients with TIAs and no prior stroke were analyzed.
• Patients with carotid and/or vertebrobasilar TIAs were included.
• Statistical analyses (univariate and multivariate) were performed to assess relationships between patient characteristics and infarction incidence.

Main Results:

• Cerebral infarction was detected in 34 patients (12%), with 5 having multiple infarctions.
• Lesion location corresponded to TIA symptoms in 16 patients; in another 16, lesions were attributed to previous silent infarctions.
• Age and carotid stenosis were significantly associated with increased likelihood of detecting cerebral infarction.

Conclusions:

• Cranial computed tomography is valuable in identifying cerebral infarction, both symptomatic and asymptomatic, in TIA patients.
• Age and carotid stenosis are significant predictors of cerebral infarction detection in this population.
• Routine cranial CT in TIA patients can reveal silent infarcts and aid in risk assessment.