“3D printing” technology helps to treat difficult aortic aneurysms

On January 12, 2022, the First Affiliated Hospital of Zhengda University
Blood vessel
surgical
Song Yan team application3D printingTechnology successfully completed two cases of difficult aorta
Operation
the patient recovered well after the operation. A 50-year-old male patient was admitted to the hospital with the main complaint of “abdominal pain for more than 1 month”. CTA in another hospital showed: abdominal aortic aneurysm-like dilatation, involving the celiac trunk artery, superior mesenteric artery and both renal arteries.

Aortic aneurysms or aortic dissections involving visceral arteries have always been difficult to treat. Traditional surgical open surgery is extremely challenging, with huge trauma, high complications and high mortality. Although endovascular aortic repair is the mainstream treatment for aortic disease, it is minimally invasive and has few complications, but pure endovascular treatment (fenestration stent or branch stent technique) involving visceral arteries is a very complicated technical operation. To accurately measure the shape of the aneurysm and the location of the openings of various important branches, extremely high surgical skills are also required during the operation. In this patient with abdominal aortic aneurysm involving the splanchnic artery, the3D printing(Print out the vascular lesion model), in vitro fenestration, accurately locate the four branches of the visceral arteries and the fenestration position of the blood vessels, and successfully completed the operation.

Another 53-year-old male patient was admitted to the hospital with the main complaint of “right limb weakness with slurred speech, thoracic aortic aneurysm for 3 days”, and a head and neck CTA in another hospital showed aortic arch aneurysm involving the left subclavian artery and left subclavian artery. Common carotid artery, insufficient anchoring area, 3D printing assisted in vitro triple fenestration, perfect isolation of thoracic aortic aneurysm and reconstruction of the three branches above the arch.

The development of these two technologies marks that Song Yan’s team from the Department of Major Vascular Surgery of the First Affiliated Hospital of Zhengzhou University has entered the first echelon in China in the endovascular treatment of aortic disease.

(responsible editor: admin)