Abstract
In this study, three-dimensional printing (3Dp) models and simulation surgeries (SSs) were applied in two challenging aortic cases. The first was an abdominal aortic aneurysm with a complex neck, and the second was a thoracic aortic dissection aneurysm (TADA) with an angled arch. In order to avoid unpredictable obstacles and difficulties, we made optimal surgical plans by using 3D models and virtual simulations. Based on preoperative evaluation system, the surgical plans seemed more reasonable and time-saving.
Highlights
Abdominal aortic aneurysms (AAAs) and thoracic aortic dissection aneurysms (TADAs) are life-threatening entities
Regarding the AAA, the results from the evaluation system revealed that the right femoral artery was the optimal approach
The diameter of the distal descending aorta was 23 mm according to the computed tomography (CT) scan; this value was exactly 20 mm according to the measurements in 3Dp model, so use of restrictive stent added into the plan
Summary
Abdominal aortic aneurysms (AAAs) and thoracic aortic dissection aneurysms (TADAs) are life-threatening entities. In AAA cases with complex neck and TADA with proximal lesions that are extremely close to the left subclavian artery (LSA), selections of the approach, stent graft, and location are difficult, but, as we know, crucial in the hemodynamic condition and prognosis. The surgeons were able to have an intuitive view of the anatomical condition and were able to mimic the operation in a 3Dp model. The right common iliac artery was 21 mm in length and severe tortuous, and the left was 16 mm, yet without tortuosity (Fig. 1) In this extremely challenging case, it was difficult to predict the changes in shape after the deployment of a stent. This case involved a 43-year-old male TADA (Stanford B type) patient.
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