title: Retrospective comparison of retroperitoneal laparoscopic versus open dismembered pyeloplasty for ureteropelvic junction obstruction.
abstract: OBJECTIVE
  We evaluated the clinical value of retroperitoneal laparoscopic dismembered pyeloplasty for ureteropelvic junction obstruction compared with open surgery.
  
  
  METHODS
  The clinical data of 56 patients who underwent retroperitoneal laparoscopic dismembered pyeloplasty were retrospectively compared with those of 40 patients who underwent open dismembered pyeloplasty through a retroperitoneal flank approach. The Student t test, Pearson chi-square test and Mann-Whitney rank sum test were applied for statistical analysis as appropriate.
  
  
  RESULTS
  Patient demographic data were similar between the 2 groups. In the laparoscopic group operative time (80 vs 120 minutes), estimated blood loss (10 vs 150 ml), recovery of intestinal function (1 vs 2 days), analgesic requirements (diclofenac sodium suppository) (75 vs 150 mg), incision length (3.5 vs 21 cm) and postoperative hospital stay (7 vs 9 days) were better than in the open group (p <0.001 for all). No intraoperative complications occurred in either group. The incidence of postoperative complications (2 of 56, 3.6% vs 3 of 40, 7.5%, p = 0.729) and success rates (55 of 56, 98.2% vs 39 of 40, 97.5%, p = 0.058) were equivalent in the 2 groups.
  
  
  CONCLUSIONS
  Retroperitoneal laparoscopic dismembered pyeloplasty is a minimally invasive, safe and effective therapy for ureteropelvic junction obstruction with low morbidity, shorter convalescence and excellent outcomes, and can be accomplished reasonably quickly in experienced hands.
authors.affiliation: Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China. xzhang@tjh.tjmu.edu.cn
authors.forename: Xu
authors.initials: X
authors.lastname: Zhang
authors.forename: Hong-Zhao
authors.initials: HZ
authors.lastname: Li
authors.forename: Xin
authors.initials: X
authors.lastname: Ma
authors.forename: Tao
authors.initials: T
authors.lastname: Zheng
authors.forename: Bin
authors.initials: B
authors.lastname: Lang
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.forename: Bin
authors.initials: B
authors.lastname: Fu
authors.forename: Kai
authors.initials: K
authors.lastname: Xu
authors.forename: Xiao-Lin
authors.initials: XL
authors.lastname: Guo
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007682:Kidney Pelvis / Q000601:surgery*; D010535:Laparoscopy; D008297:Male; D012187:Retroperitoneal Space; D012189:Retrospective Studies; D014517:Ureteral Obstruction / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000379:methods