Combination Gadolinium Angiography and Intravascular Ultrasound Study for Coronary Artery and Graft Assessment

Area of Science:

• Cardiology
• Radiology
• Nephrology

Background:

• Contrast-induced hypersensitivity reactions, including Stevens-Johnson syndrome, complicate diagnostic procedures.
• Coronary angiography is crucial for patients with coronary artery disease awaiting renal transplantation.
• End-stage renal disease and prior coronary artery bypass grafting present unique management challenges.

Observation:

• A complex patient with a history of iodinated contrast-induced Stevens-Johnson syndrome required coronary and bypass graft angiography.
• Standard iodinated contrast angiography was contraindicated due to the patient's severe allergy.
• The patient had end-stage renal disease and a history of 5-vessel coronary artery bypass grafting.

Findings:

• A novel hybrid approach successfully enabled complete coronary and bypass graft angiography.
• Intravascular ultrasound guided the procedure, minimizing the need for contrast media.
• A small dose of gadolinium-based contrast was safely administered, avoiding iodinated contrast.

Implications:

• This hybrid technique offers a safe alternative for patients with life-threatening contrast allergies.
• It facilitates timely diagnostic evaluations for complex cardiac patients with contraindications to standard contrast agents.
• The approach enhances the management of patients with renal disease requiring cardiac imaging.