Using a 3D printer in cardiac valve surgery: a systematic review

Abstract

SUMMARY BACKGROUND: The use of the 3D printer in complex cardiac surgery planning. OBJECTIVES: To analyze the use and benefits of 3D printing in heart valve surgery through a systematic review of the literature. METHODS: This systematic review was reported following the Preferred Reporting Items for Systematic Review and registered in the Prospero (International Prospective Register of Systematic Reviews) database under the number CRD42017059034. We used the following databases: PubMed, EMBASE, Scopus, Web of Science and Lilacs. We included articles about the keywords “Heart Valves”, “Heart Valve Prosthesis Implantation”, “Heart Valve Prosthesis”, “Printing, Three-Dimensional”, and related entry terms. Two reviewers independently conducted data extraction and a third reviewer solved disagreements. All tables used for data extraction are available at a separate website. We used the Cochrane Collaboration tool to assess the risk of bias of the studies included. RESULTS: We identified 301 articles and 13 case reports and case series that met the inclusion criteria. Our studies included 34 patients aged from 3 months to 94 years. CONCLUSIONS: Up to the present time, there are no studies including a considerable number of patients. A 3D-printed model produced based on the patient enables the surgeon to plan the surgical procedure and choose the best material, size, format, and thickness to be used. This planning leads to reduced surgery time, exposure, and consequently, lower risk of infection.

Experiência de uma universidade pública na produção de tecnologias para a proteção de trabalhadores na pandemia da COVID-19

“…A impressão 3D, prototipagem rápida, é um método de alta resolução que parte de uma imagem a ser reconstruída, processada e impressa como o arquivo digital. 11 A adaptação do modelo de produção e do protótipo face shield ficou a critério de dois professores doutores dos DSAU e DFIS. A prototipagem da máscara foi composta por três partes: coroa/haste (filamento PLA/ABS), viseira (folha de acetato transparente) e elástico.…”

“…Se a peça impressa em ABS possui um aspecto mais opaco, o acabamento com acetona dá mais brilho e consegue corrigir algumas imperfeições que podem ser geradas. 10,11 Etapa de execução: operacionalização da proposta.…”

Virtual reality three-dimensional echocardiographic imaging for planning surgical atrioventricular valve repair

“…15 This paves the way for more detailed planning in cases needing cordal intervention such as placement of artificial cords as part of the AV valve repair. The use of compounded 3D echocardiography data in VR has significant potential in this field as most 3D printing studies of the AV valve to date are limited to CT data for its high spatial resolution and wide coverage 16 despite being static, while those using standard 3D echocardiography are limited to study of the valve leaflets alone.…”