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Transient global amnesia after cerebral angiography with iohexol
1Department of Radiology, McMaster University Medical Centre, Hamilton, Ont.
Summary
Transient global amnesia can occur after cerebral angiography. This temporary memory loss is benign, with full recovery expected, though it can be alarming for patients and doctors.
Area of Science:
- Neurology
- Radiology
Background:
- Transient global amnesia (TGA) is a rare neurological event.
- It is sometimes observed following angiography, particularly of cerebral vessels.
Observation:
- This study details two cases of TGA occurring after cerebral angiography using iohexol.
- The diagnostic criteria for TGA were outlined.
Findings:
- Cerebral angiography with iohexol can precipitate transient global amnesia.
- The phenomenon is temporary and resolves without lasting deficits.
Implications:
- Recognizing TGA after angiography is crucial for patient and physician reassurance.
- Understanding the proposed mechanisms aids in managing this neurological event.