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Case report: 3D-printed model for surface mould preparation on a patient with Down’s syndrome

Case report: 3D-printed model for surface mould preparation on a patient with Down’s syndrome Abstract Introduction: A patient with Down’s syndrome, with dermatofibrosarcoma protuberans, was intended for adjuvant radiotherapy. The lesion was on the parietal region of the head of the patient. Given the proximity of the lesion to the brain, the curvature of the lesion, and potential complications of anaesthesia for a Down’s syndrome patient, brachytherapy was the appropriate treatment. Anaesthesia complications for patients with Down’s syndrome are airway infections, atlanto-occipital dislocation and bradycardia. Method: Instead of sedating the patient in order to prepare a mould applicator, a 3D-printed model of the patient’s head was used. This allowed us greater time to prepare the applicator in a more relaxed environment. Result: The fit of the mould applicator on the patient was satisfactory. Minimum air gaps were observed. The treatment could be completed with sedation only. Conclusion: We were able to achieve an equivalent dose of 44·69 Gy in 5 sessions of brachytherapy, significantly reducing the anaesthesia sessions and the associated risks. A drawback of 3D printing is that it takes several hours to print the model. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Radiotherapy in Practice Cambridge University Press

Case report: 3D-printed model for surface mould preparation on a patient with Down’s syndrome

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References (19)

Publisher
Cambridge University Press
Copyright
© The Author(s), 2023. Published by Cambridge University Press
ISSN
1467-1131
eISSN
1460-3969
DOI
10.1017/S1460396923000183
Publisher site
See Article on Publisher Site

Abstract

Abstract Introduction: A patient with Down’s syndrome, with dermatofibrosarcoma protuberans, was intended for adjuvant radiotherapy. The lesion was on the parietal region of the head of the patient. Given the proximity of the lesion to the brain, the curvature of the lesion, and potential complications of anaesthesia for a Down’s syndrome patient, brachytherapy was the appropriate treatment. Anaesthesia complications for patients with Down’s syndrome are airway infections, atlanto-occipital dislocation and bradycardia. Method: Instead of sedating the patient in order to prepare a mould applicator, a 3D-printed model of the patient’s head was used. This allowed us greater time to prepare the applicator in a more relaxed environment. Result: The fit of the mould applicator on the patient was satisfactory. Minimum air gaps were observed. The treatment could be completed with sedation only. Conclusion: We were able to achieve an equivalent dose of 44·69 Gy in 5 sessions of brachytherapy, significantly reducing the anaesthesia sessions and the associated risks. A drawback of 3D printing is that it takes several hours to print the model.

Journal

Journal of Radiotherapy in Practice – Cambridge University Press

Published: May 22, 2023

Keywords: 3D printing; brachytherapy; dermatofibrosarcoma protuberans; Down’s syndrome; general anaesthesia; surface mould

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