title: Choosing the ideal length of a double-pigtail ureteral stent according to body height: study based on a Chinese population.
abstract: OBJECTIVE
  We conducted this study to determine the ideal stent length according to body height, as data are limited.
  
  
  METHODS
  A total of 408 patients undergoing ureteroscopic lithotripsy and stent insertion (22, 24 or 26 cm) were enrolled. The appropriateness of the stent length was determined according to the plain films and was further compared among patients with different body heights and stent lengths.
  
  
  RESULTS
  In patients <160 cm, the use of a 22-cm stent was significantly more appropriate than a 24- or 26-cm stent (86.5, 51.9 and 46.4%). In patients between 160 and 175 cm, a 22- or 24-cm stent was significantly more appropriate than a 26-cm stent (79.2, 66.7 and 46.3%), while the difference between the use of a 22- and 24-cm stent was not significant. In patients >175 cm, a 24- or 26-cm stent might be more appropriate.
  
  
  CONCLUSIONS
  Body heights can predict the ideal stent length. Based on a Chinese population, a 22-cm stent length is more appropriate for those <175 cm. A longer, 24- or 26-cm stent may be suitable for those >175 cm.
authors.affiliation: Department of Urology, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan.
authors.forename: Chen-Hsun
authors.initials: CH
authors.lastname: Ho
authors.forename: Kuo-How
authors.initials: KH
authors.lastname: Huang
authors.forename: Shyh-Chyan
authors.initials: SC
authors.lastname: Chen
authors.forename: Yeong-Shiau
authors.initials: YS
authors.lastname: Pu
authors.forename: Shih-Ping
authors.initials: SP
authors.lastname: Liu
authors.forename: Hong-Jeng
authors.initials: HJ
authors.lastname: Yu
mesh_terms: D044466:Asian People; D001827:Body Height; D001835:Body Weight; D005260:Female; D006801:Humans; D008096:Lithotripsy; D008297:Male; D008875:Middle Aged; D015607:Stents; D014513:Ureter; D014514:Ureteral Calculi / Q000628:therapy; D018666:Ureteroscopy