Multislice Computed Tomography in Complex Pulmonary Atresia After Stent Implantation
A 37-year-old severely cyanotic man with unoperated pulmonary atresia, ventricular septal defect, and aortopulmonary collateral vessels was referred for invasive assessment in January 1995. In 2 of 3 larger aortopulmonary collaterals, cardiac catheterization depicted a circumscript stenosis near the origin from the aorta. Because of the patient’s severe cyanosis and unsuitability for corrective surgery, stents were implanted into 2 of the aortopulmonary collaterals. Immediately after stent implantation, the oxygen saturation rose from between 70% and 72% to between 83% and 85%. The patient’s state of health and exercise performance also improved and was maintained for 7 years. Over the past year, however, some reduction in exercise capacity developed. He therefore underwent reevaluation by multislice computer-assisted tomography (Siemens SOMATOM Sensation 16 cardiac). Figures 1 and 2⇓ and the online-only Data Supplement video clip show the reconstructed anatomy of the entire pulmonary blood supply and the status of the stents.
The online-only Data Supplement, which contains a video clip, is available with this article at http://www.circulationaha.org.