Author + information
- Terry D. Bauch,
- Pugazhendhi Vijayaraman and
- Kishore Harjai
Background: 3D printing creates alluring cardiovascular models, but the impact of this technology to alter procedural outcomes remains investigational. We explored the feasibility and value of practicing procedures such as atrial appendage (LAA) and para-valvular leak (PVL) occlusion with standard equipment and live fluoroscopy on personalized 3D printed models.
Methods: Two patients referred for lariat procedures due to recurrent GI bleeding, and a third patient referred for PVL closure of symptomatic para-valvular prosthetic aortic regurgitation underwent retrospectively-gated CT Angiography. Images were segmented with TeraRecon software (Foster City, CA), processed with MeshMixer (San Rafael, CA). Life-size models were printed on a Lulzbot Taz 5 using PLA and Semiflex plastic filaments.
Results: In pt 1 (Figure) the Lariat was easily advanced to the base of the LAA for deployment using the 3D printed model. Subsequently the actual lariat procedure was successfully completed. In pt 2, the LAA had a superior lobe and the Lariat could not be optimally positioned on the model. Subsequent attempt at actual ligation was unsuccessful. In pt 3 the PVL model was easily crossed with an Amplatz I(AL I) catheter after failure using a multipurpose shape. The actual PVL was crossed with the AL I and a vascular plug successfully deployed.
Conclusions: Patient-specific 3D printed models can facilitate procedural planning and potentially predict success. Additional investigations of this method should be pursued.
Poster Hall, Hall C
Friday, March 17, 2017, 3:45 p.m.-4:30 p.m.
Session Title: PCI for NSTEMI and Complex Patients With Multiple Co-Morbidities
Abstract Category: 24. Interventional Cardiology: Mitral and Structural Heart Disease
Presentation Number: 1154-145
- 2017 American College of Cardiology Foundation