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Evaluation of Two Ureter Sealing Methods During Radical Nephroureterectomy

Kun Pang, Bo Chen, Bo Jiang, Zhenduo Shi, Lin Hao, Zhiguo Zhang, Jianjun Zhang, Longcun Cai, Tian Xia, Zhenning Wei, Kun Fang, Dianjun Yu, Conghui Han, Xiaowen Sun



Purpose: To investigate the safety of electrocoagulation and thulium laser (Tm-laser) sealing methods of distal ureter resection during radical nephroureterectomy (NFU) in a porcine model.

Methods: 9 pigs were used in the study: 6 were used to measure the bursting pressure (BP) and 3 were used to measure the highest pressure during NFU. Twelve ureters were to measure BP after being sealed by electrocoagulation or Tm-laser (n = 6, each). Six experimental NFUs were performed in 3 pigs to measure the intraluminal pressure of all procedures.

Results: The mean BP in the electrocoagulation group (104.3 ± 25.0 cmH2O) was similar to that of the Tm-laser group (74.8 ± 23.3 cmH2O, P > .05). The peak intraluminal pressure (35.9 ± 7.6 cmH2O) during NFU was significantly lower than the BP (P < .05).

Conclusion: The effectiveness of the sealing was confirmed using both electrocoagulation and Tm-laser during NFU.


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DOI: http://dx.doi.org/10.22037/uj.v0i0.4920


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