@article{oai:dmu.repo.nii.ac.jp:00005123,
 author = {Takayama, Tatsuya and Kameda, Tomohiro and Nakano, Kazuhiko},
 issue = {1},
 journal = {Dokkyo Medical Journal},
 month = {Mar},
 note = {Introduction: We introduce a convincing method of placing and replacing ureteral stents in women using a pig-tail Straightener.
　Materials and Methods: Eleven female patients with a median 78 years old (range 65 to 89) who underwent pre-stenting on urinary tract stones (4 kidney stones and 7 ureteral stones) with written informed consent were included. Prior to retrograde intrarenal surgery, pull the end of the stent out of the urethral meatus with Pean forceps under fluoroscopy. Very gently insert the guidewire into space outside the stent within the pig-tail Straightener until the tip is resistant, that is the state in which the pig-tail Straightener hits the ureteral orifice. Properly adjusting the position and angle of the pig-tail Straightener ensures that the guidewire is inserted into the ureter. Subsequently, the Double J stent is removed, and another insertion as a safety guidewire is possible by the same operation again.
　Results: All procedures have been successful without adverse events.
　Conclusions: The pig-tail Straightener may be useful for placement and replacement of a ureteral stent in a woman.},
 pages = {81--83},
 title = {Female-only Ureteral Stent Placement and Replacement Technique Using Pig-tail Straightener},
 volume = {1},
 year = {2022}
}