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Radiation exposure during percutaneous nephrolithotomy (PCNL) can be minimized. Careful surgical technique and operator experience significantly reduce fluoroscopy times and radiation dose for patients undergoing PCNL.

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Area of Science:

  • Urology
  • Medical Physics
  • Surgical Technology

Background:

  • Urologic stone disease prevalence is increasing, necessitating more endourologic procedures.
  • The rise in fluoroscopy use during surgery raises concerns about radiation exposure.
  • Auditing radiation exposure during percutaneous nephrolithotomy (PCNL) is crucial for patient and clinician safety.

Purpose of the Study:

  • To audit contemporary radiation exposure data during PCNL.
  • To compare current radiation exposure with previously published series.
  • To demonstrate that low radiation levels are achievable with vigilance and technique.

Main Methods:

  • Retrospective analysis of PCNL procedures performed between July 2005 and December 2011.
  • Primary outcome measures: fluoroscopy times and dose area product (DAP).
  • Data collected from 348 patients, including 16 pediatric cases.

Main Results:

  • Mean DAP was 45 cGy/cm² and mean screening time (ST) was 96 seconds over the study period.
  • Yearly analysis showed a reduction in ST from 917 to 375 and DAP from 180 to 65.
  • The study represents the largest series on radiation exposure during PCNL to date.

Conclusions:

  • PCNL radiation exposure compares favorably with other published series.
  • Subtle improvements in surgical technique and experience can lead to reduced screening times.
  • Careful technique and experience in high-throughput centers can minimize radiation dose during PCNL.