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Dormia basket stone extraction

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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A ureteroscope is a fine-bore instrument that is passed into the ureter for the purposes of:

  • stone extraction
  • tumour biopsy
  • stricture dilatation

The technique is performed under epidural or general anaesthesia with antibiotic cover, for example, a single dose of ciprofloxacin. With the patient placed in the lithotomy position, cystoscopy is performed to identify the ureteric orifices. The ureteroscope may then be inserted carefully into the ureter.

Flexible ureteroscopes have largely replaced rigid instruments. However, their small calibre places restrictions on the size of manipulative instruments that may be admitted.

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