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Transient cortical blindness after coronary angiography
B N Alp1, N Bozbuğa, M A Tuncer
1Department of Health, Education Faculty, Marmara University, Istanbul, Turkey.
The Journal of International Medical Research
|September 19, 2009
Summary
Transient cortical blindness is a rare complication following coronary angiography. This case highlights a patient who experienced temporary vision loss after the procedure, with spontaneous recovery.
Area of Science:
- Neurology
- Radiology
- Cardiology
Background:
- Coronary angiography is a common diagnostic procedure.
- Transient cortical blindness (TCB) is a rare adverse event associated with contrast media.
- Previous contrast exposure does not preclude TCB.
Observation:
- A 56-year-old patient developed TCB 72 hours post-coronary angiography.
- Neurological exam revealed cortical blindness without focal deficits.
- Brain imaging showed bilateral occipital lobe contrast enhancement on CT, with normal MRI.
Findings:
- The patient experienced temporary visual impairment following contrast administration.
- Contrast enhancement in the occipital lobes suggests a contrast-related mechanism.
- Spontaneous visual recovery occurred within four days.
Implications:
- This case underscores the potential for delayed TCB after coronary angiography.
- Radiologists and cardiologists should be aware of this rare complication.
- Further research may elucidate the pathophysiology and risk factors for contrast-induced TCB.
