Department of Urology, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, Changsha, 410006, China.
Urol J. 2020 Apr 19;18(2):171-175. doi: 10.22037/uj.v0i0.5541.
This study aimed to explore the security and feasibility of three-dimensional (3D) printing technology- assisted laparoscopic cryoablation to treat small renal tumors.
Four patients recruited from our hospital from April 2016 to August 2017 underwent 3D printing technology-assisted laparoscopic cryoablation. Three-dimensional reconstruction technology was used to mimic cryoablation treatment before operations to determine the number of needles needed for the operation and the depth and angle required for needle insertion into the tumor to preserve nephron integrity. CT scans were used to assess the treatment's efficacy after operation during regular follow-up.
The operation was performed successfully in all cases and all patients recovered without major complications. The operation times ranged from 106 to 118 minutes and blood loss ranged from 50 to 100 mL. The follow-up times were between 8-16 months and the mean time was 13.3 months. Follow-up surveys were conducted regularly based on a standard outpatient protocol. Results showed no abnormal reinforcing signals in cryoablation treated areas.
3D printing technology-assisted laparoscopic cryoablation is a feasible method for the treatment of renal tumors and may be a way to better preserve nephrons, especially in elderly patients and/or those with comorbidities.
本研究旨在探讨三维（3D）打印技术辅助腹腔镜冷冻消融术治疗小肾肿瘤的安全性和可行性。
2016 年 4 月至 2017 年 8 月，我们医院招募了 4 名患者进行 3D 打印技术辅助腹腔镜冷冻消融术。在手术前，使用三维重建技术模拟冷冻消融治疗，以确定手术所需的针数以及插入肿瘤以保留肾单位完整性所需的针的深度和角度。在定期随访期间，通过 CT 扫描评估术后治疗效果。
所有患者的手术均成功完成，且均无重大并发症恢复。手术时间为 106 至 118 分钟，出血量为 50 至 100 毫升。随访时间为 8 至 16 个月，平均随访时间为 13.3 个月。根据标准门诊协议定期进行随访调查。结果显示，冷冻消融治疗区域无异常强化信号。
3D 打印技术辅助腹腔镜冷冻消融术是治疗肾肿瘤的一种可行方法，可能是更好地保留肾单位的一种方法，特别是在老年患者和/或合并症患者中。
