title: Laparoscopic pyeloplasty: technique and results in 80 consecutive patients.
abstract: OBJECTIVE
  To present our long-term results with the Anderson-Hynes laparoscopic pyeloplasty, performed by a single surgeon.
  
  
  METHODS
  Between August 1999 and December 2009, 79 patients (80 procedures) were operated for primary ureteropelvic junction obstruction. We use the Anderson-Hynes technique by a transperitoneal approach. Patients were evaluated with Ultrasound, Excretory urography and dynamic renal scintigraphy (Mag-3). The perioperative characteristics, complications and results were reviewed.
  
  
  RESULTS
  We performed 80 laparoscopic pyeloplasties in 79 patients. Mean operative time was 93.2 minutes (60-180). Crossing vessels were found in 38 of 82 (46.3%) renal units. Kidney abnormalities occurred in 4 patients (1 double ureteropelvic system, one associated retrocaval ureter, 1 horseshoe kidney and one pelvic kidney). Complications occurred in 5 procedures (6.5%): an immediately postoperative bleeding (Clavien 3b), 1 cecal volvulus (Clavien 3b), 1 urosepsis (Clavien 4th) and 1 urinary fistula (Clavien 3a). In this series there was neither mortality nor conversion to open surgery There was recurrence in 3 out of 80 patients (3.7%). They were resolved as follows: 1 percutaneous antegrade endopyelotomy, 1 secondary laparoscopic pyeloplasty and 1 robotic pyeloplasty. There was a 96.3%. of primary overall success rate.
  
  
  CONCLUSIONS
  Our results show that laparoscopic pyeloplasty compares favorably with the result achieved by open surgery. We believe that laparoscopic pyeloplasty is a good surgical alternative for the management of primary ureteropelvic junction obstruction.
authors.affiliation: Departamento de Urología y Centro de Cirugía Robótica, Clínica INDISA, Santiago, Chile; Facultad de Medicina, Universidad Andrés Bello, Santiago, Chile. Electronic address: octavio.castillo@indisa.cl.
authors.forename: O A
authors.initials: OA
authors.lastname: Castillo
authors.affiliation: Departamento de Urología y Centro de Cirugía Robótica, Clínica INDISA, Santiago, Chile.
authors.forename: W
authors.initials: W
authors.lastname: Cabrera
authors.affiliation: Departamento de Urología y Centro de Cirugía Robótica, Clínica INDISA, Santiago, Chile.
authors.forename: E
authors.initials: E
authors.lastname: Aleman
authors.affiliation: Departamento de Urología y Centro de Cirugía Robótica, Clínica INDISA, Santiago, Chile.
authors.forename: I
authors.initials: I
authors.lastname: Vidal-Mora
authors.affiliation: Departamento de Urología y Centro de Cirugía Robótica, Clínica INDISA, Santiago, Chile.
authors.forename: R
authors.initials: R
authors.lastname: Yañez
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000151:congenital* / Q000601:surgery; D007682:Kidney Pelvis / Q000601:surgery*; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D021782:Multicystic Dysplastic Kidney / Q000601:surgery*; D013997:Time Factors; D016896:Treatment Outcome; D014517:Ureteral Obstruction / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000379:methods; D055815:Young Adult
keywords: Anderson-Hynes; Cirugía robótica; Estenosis pieloureteral; Laparoscopia; Laparoscopy; Pieloplastia; Pyeloplasty; Robotic surgery; Ureteropelvic junction obstruction