Laser ureteral anastomosis using intraluminal albumin stent in a porcine model

Hua Xie, Brian S. Shaffer, Scott A. Prahl, Kenton W. Gregory

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Background and Objectives: We compared ureteral anastomosis using a laser and intraluminal albumin stent with both conventional suturing and laser soldering techniques. Study Design/Materials and Methods: Twelve pigs underwent bilateral ureteral anastomoses (N = 24) using one of the three anastomotic methods: (1) laser welding with intraluminal albumin stent (N = 11); (2) with albumin solder (N = 8); and (3) conventional suturing (N = 5). Operative parameters, leakage rate, intrapelvic perfusion pressure, urography, and histology of the anastomoses were examined. Results: Operative time for ureteral anastomosis in the stent and solder groups were significantly shorter than the suture group (means 370 seconds and 360 vs. 710 seconds, both P = 0.02). Leakage rate of the anastomoses was lower in the stent group (9%, 1/11) as compared to the solder group (25%, 2/8). The Whitaker test showed that the intrapelvic perfusion pressure elevated gradually after anastomosis and significantly increased at 4 weeks post-operatively in all three methods. Various degrees of hydronephrosis were also noticed in three groups after 4 weeks of surgery. Conclusions: Use of the intraluminal albumin stent increased the reliability of laser welding for ureteral anastomosis. The clinical significance of using this technique should be investigated further.

Original languageEnglish (US)
Pages (from-to)294-298
Number of pages5
JournalLasers in Surgery and Medicine
Issue number4
StatePublished - 2003


  • Albumin
  • Laser welding
  • Solder
  • Stent
  • Ureter

ASJC Scopus subject areas

  • Surgery
  • Dermatology


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