Cost-Effective And Time-Saving Three-Dimensional (3-D) Printing Protocol of Intra-Abdominal Cavity of Liver Transplantation Recipient To Prevent Large-For-Size Syndrome

Cost-effective and time-saving Three-dimensional (3-D) printed model of intra-abdominal cavity protocol was utilized in liver transplantation to prevent large-for-size syndrome. 3-D printings were performed on potential recipients with small cavity during July 2020 to July 2021. During deceased donor organ procurement, size of the graft was compared to the model while 3-D printed graft was physically placed into the 3-D model in living donor transplantation. Ten adults and six pediatric patients with median height and weight of 161.0 cm (IQR 158.0-163.8) and 56.5kg (IQR 49.9-62.5), and 70.0 cm (IQR 60.8-116.8) and 7.6 kg (IQR 7.0-22.0), respectively, were included. Median time and filament cost were 576 minutes (IQR 434-680) and 1.6 US dollars (IQR 1.2-1.7). Reduction graft from deceased donor (n=1), whole liver after abortion of first matched donor (n=2), whole liver from first matched donor (n=5), living donor transplantation using right liver (n=1) and left liver from living donor after abortion of first matched deceased donor (n=1) were successfully transplanted in adults. In pediatric patients, left hemiliver (n=1), reduction (n=2), and extended left lateral graft (n=3) transplantations were successfully performed. Our 3-D printed model was feasible and proved to be useful for preventing large-for-size syndrome in small recipients.