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CASE REPORTS
JOURNAL ARTICLE
Intravascular Ultrasound-Guided Cardiac Intervention in a Fontan Patient with Allergy to Contrast Media.
Texas Heart Institute Journal 2017 October
Allergy to contrast media is hazardous in patients who need multiple cardiac catheterizations. We describe the case of a 16-year-old boy who presented with fatigue and cyanosis. He had undergone a Fontan operation 14 years previously, after which he developed an allergy to iodinated contrast media. Contrast echocardiograms by manual injection of microbubbles suggested the presence of a venovenous collateral vessel from the brachiocephalic vein draining into the pulmonary vein. We used intravascular ultrasound as the sole imaging method to identify the target vessel and to guide deployment of an Amplatzer Vascular Plug II. The patient experienced immediate improvement in his systemic saturation. Our experience shows that intravascular ultrasound may be a feasible alternative to standard imaging methods in patients with congenital heart disease who need cardiac interventional procedures and are allergic to contrast media.
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