Validation of 3D Printed Templates for Physician Modified Endografts

Despite advances in surgical techniques, thoracoabdominal aneurysms (TAAA) continue to have significant surgical morbidity and mortality. Physician-modified (PMEG) and parallel (“chimney”) endografts remain the only options for high-risk patients who are too unstable to wait for custom endograft production. Physician-created fenestrations can be unreliable, and are heavily dependent on experience and proficiency with the technology. 3D printing equipment presents a potential for reduction in variability, which could improve reproducibility of PMEG devices.