title: Transumbilical single-incision laparoscopic versus conventional laparoscopic upper pole heminephroureterectomy for children with duplex kidney: a retrospective comparative study.
abstract: OBJECTIVE
  To present our experience regarding transumbilical single-incision laparoscopic heminephroureterectomy (SILH) in children with duplex kidney anomalies, and to investigate its feasibility and safety compared with those of conventional laparoscopic heminephroureterectomy (CLH).
  
  
  METHODS
  A matched-pair study comparing 34 SILHs and 34 CLHs performed by a single surgeon from 2007 to 2013 was presented. All SILHs were performed through a 2-cm periumbilical incision by using the port-access system, whereas CLH cases were performed via a transperitoneal 3-port approach. The groups were matched for age, gender, weight, laterality, and surgical indication of the patients. Data including demographics and perioperative and short-term outcomes of the patients were retrospectively compared.
  
  
  RESULTS
  The 2 groups were comparable in demographics, and surgical indications of the patients (P >.05). No significant difference was observed between SILH and CLH cases in terms of median operative time (105 vs 97 minutes; P = .06), estimated blood loss (22 vs 25 mL; P = .91), interval for oral intake (12 vs 12 hours; P = .69), analgesic requirement (9 vs 6 cases; P = .38), transfusion rate (0% for both; P = 1.00), complication rate (2.9% vs 0%; P = 1.00), postoperative hospital stay (5.0 vs 4.5 days; P = .59), and renal functional loss of the operated side at 3 months after surgery (5.4% vs 5.2%; P = .60).
  
  
  CONCLUSIONS
  SILH is feasible and safe in the hands of an experienced pediatric laparoscopic surgeon. Although the outcomes were comparable, better subjective cosmetic results of SILH were achieved.
authors.affiliation: Department of Urology, Bayi Children's Hospital Affiliated to Beijing Military Region General Hospital, Beijing, People's Republic of China. Electronic address: huixia99999@163.com.
authors.forename: Huixia
authors.initials: H
authors.lastname: Zhou
authors.affiliation: The Second Military Medical University, Shanghai, People's Republic of China.
authors.forename: Shaoxiong
authors.initials: S
authors.lastname: Ming
authors.affiliation: Department of Urology, Bayi Children's Hospital Affiliated to Beijing Military Region General Hospital, Beijing, People's Republic of China.
authors.forename: Lifei
authors.initials: L
authors.lastname: Ma
authors.affiliation: Department of Urology, Bayi Children's Hospital Affiliated to Beijing Military Region General Hospital, Beijing, People's Republic of China.
authors.forename: Chao
authors.initials: C
authors.lastname: Wang
authors.affiliation: Department of Urology, Bayi Children's Hospital Affiliated to Beijing Military Region General Hospital, Beijing, People's Republic of China.
authors.forename: Xin
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Urology, Bayi Children's Hospital Affiliated to Beijing Military Region General Hospital, Beijing, People's Republic of China.
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Zhou
authors.affiliation: Department of Urology, Bayi Children's Hospital Affiliated to Beijing Military Region General Hospital, Beijing, People's Republic of China.
authors.forename: Huawei
authors.initials: H
authors.lastname: Xie
authors.affiliation: Department of Urology, Bayi Children's Hospital Affiliated to Beijing Military Region General Hospital, Beijing, People's Republic of China.
authors.forename: Tian
authors.initials: T
authors.lastname: Tao
authors.affiliation: Department of Urology, Bayi Children's Hospital Affiliated to Beijing Military Region General Hospital, Beijing, People's Republic of China.
authors.forename: Sichao
authors.initials: S
authors.lastname: Ma
authors.affiliation: Department of Paediatrics, Southern Medical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria, Australia; Department of Surgery, Southern Medical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria, Australia; Department of Surgery, Beijing United Family Hospital, Beijing, People's Republic of China.
authors.forename: Wei
authors.initials: W
authors.lastname: Cheng
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007668:Kidney / Q000002:abnormalities* / Q000601:surgery*; D010535:Laparoscopy; D007902:Length of Stay; D008297:Male; D009392:Nephrectomy / Q000379:methods*; D012189:Retrospective Studies; D016896:Treatment Outcome; D014472:Umbilicus / Q000601:surgery; D014513:Ureter / Q000601:surgery*