Author/Authors :
Sridhar, Ganiga Srinivasaiah university of malaya - Medical Centre - Department of Medicine, Division of Cardiology, Malaysia , Sadiq, Muhammad Athar university of malaya - Medical Centre - Department of Medicine, Division of Cardiology, Malaysia , Wan Ahmad, Wan Azman university of malaya - Medical Centre - Department of Medicine, Division of Cardiology, Malaysia , Supuramaniam, Chitra university of malaya - Medical Centre - Department of Radiology, Malaysia , Undok, Abdul Wahab university of malaya - Medical Centre - Department of Medicine, Division of Cardiology, Malaysia , Abidin, Imran Zainal university of malaya - Medical Centre - Department of Medicine, Division of Cardiology, Malaysia , Chee, Kok Han university of malaya - Medical Centre - Department of Medicine, Division of Cardiology, Malaysia
Abstract :
Transient cortical blindness after coronary angiography and bypass graft is a very rare complication. In this report we present the case of a 63-year-old man who developed transient cortical blindness within 30 minutes of coronary angioplasty and graft study, but subsequently recovered within 72 hours without any neurological deficit. A plain computed tomography brain scan showed bilateral symmetrical subarachnoid hyperdensities in the posterior cerebral circulation area suspicious of subarachnoid bleed. However, magnetic resonance imaging and magnetic resonance angiography scans were normal. Excess contrast volume causing direct neurotoxicity seems to be the most probable cause, but the exact mechanism is unclear.
Keywords :
Coronary angioplasty , Bypass graft angiography , Transient cortical blindness , Contrast neurotoxicity.
