Partial nephrectomy without renal ischemia using an electromagnetic thermal surgery system in a porcine model

Chien Hui Ou, Wen Horng Yang, Hung Wen Tsai, Tung Jen Lee, Szu Yin Chen, Sheng Chieh Huang, Yi Yuan Chang, Gwo Bin Lee, Xi Zhang Lin

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

Objective: To test the feasibility of partial nephrectomy using needle arrays under alternating current (AC) electromagnetic field without renal artery clamping. Methods: We performed an experimental study for partial nephrectomy without renal artery clamping in a porcine model, comparing a new thermal surgery system consisting of an AC electromagnetic field generator and stainless steel needle arrays (using 10 pigs) vs an ultrasonic Harmonic Scalpel (on 8 pigs). Two cm of the upper pole of the kidneys were resected, and then the feasibility, operation time, blood loss, biochemical parameters, pathology, and complications were observed for 14 days. Results: There was no difference by weight in the mean percentage of kidney removed between the 2 groups (8.1 ± 3.4% vs 12.7 ± 5.5%). The estimated blood loss for the partial nephrectomy with electromagnetic thermal surgery system was significantly less compared to the ultrasonic Harmonic Scalpel (53.0 ± 73.0 vs 188.8 ± 49.3 mL). Transection time was shorter with the electromagnetic thermal surgery system (10 vs 12 minutes). Bleeding from the cut surface after partial nephrectomy was noted in 2 pigs (electromagnetic surgery group) and 8 pigs (control group); all the bleeding was controlled with additional monopolar electrocoagulation and sutures. No urinoma was identified in either group when a second laparotomy was performed 2 weeks later. Conclusion: Our study of a partial nephrectomy in a porcine model demonstrates that the heat generated by the electromagnetic thermal surgery system is sufficient to coagulate renal parenchyma and to seal off the blood vessels without pedicle clamping.

原文English
頁(從 - 到)1101-1107
頁數7
期刊Urology
81
發行號5
DOIs
出版狀態Published - 2013 五月

All Science Journal Classification (ASJC) codes

  • 泌尿科學

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