title: Outcome of poorly functioning kidneys secondary to PUJO preserved by pyeloplast.
abstract: OBJECTIVE
  To study the intermediate term to long-term functional status of kidneys with split renal function(SRF) <15% secondary to PUJO which are preserved by pyeloplasty and to find out whether these kidneys can recover or eventually need nephrectomy.
  
  
  METHODS
  24 patients with SRF<15% and undergoing pyeloplasty with or without prior percutaneous nephrostomy (PCN) were studied. Those with associated VUR, B/L disease and redo pyeloplasties were excluded. Follow up USG and EC scan were done at 3, 9 and 18months and yearly thereafter to document functional status after surgery.
  
  
  RESULTS
  The preoperative SRF ranged from 0.6% to 15% with a mean of 10.61±5.23%. This improved in the postoperative period to a mean of 18.08±7.3%, 18.17±8.63% and 18.42±8.42% at 3months, 9months and 18months follow up respectively, indicating that the maximum improvement occurs early after relief of obstruction and then tends to stabilize or plateau.
  
  
  CONCLUSIONS
  We identified no patients who required nephrectomy. Hence, doing pyeloplasty directly for poorly functioning kidneys is much more feasible and PCN should be reserved for acute emergencies like pyonephrosis, grossly palpable kidney or gross hydronephrosis in both kidneys or a solitary kidney.
authors.affiliation: Dept. of Pediatric Surgery, PGIMER, Chandigarh.
authors.forename: Yasir Ahmad
authors.initials: YA
authors.lastname: Lone
authors.affiliation: Dept. of Pediatric Surgery, PGIMER, Chandigarh. Electronic address: rsamujh@gmail.com.
authors.forename: Ram
authors.initials: R
authors.lastname: Samujh
authors.affiliation: Dept. of Nuclear Medicine, PGIMER, Chandigarh.
authors.forename: Anish
authors.initials: A
authors.lastname: Bhattacharya
authors.affiliation: Dept. of Pediatric Surgery, PGIMER, Chandigarh.
authors.forename: Ravi Prakash
authors.initials: RP
authors.lastname: Kanojia
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007682:Kidney Pelvis / Q000601:surgery*; D008297:Male; D009392:Nephrectomy; D009403:Nephrostomy, Percutaneous; D011446:Prospective Studies; D051437:Renal Insufficiency / Q000175:diagnosis / Q000209:etiology*; D012189:Retrospective Studies; D016896:Treatment Outcome; D014517:Ureteral Obstruction / Q000150:complications / Q000601:surgery*; D013520:Urologic Surgical Procedures
keywords: PUJO; Pelviureteric junction obstruction; Poorly functioning kidneys; Pyeloplasty