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Comparison of the safety and efficacy of one-shot and telescopic metal dilatation in percutaneous nephrolithotomy: a randomized controlled trial

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Abstract

Minimizing X-ray exposure during percutaneous nephrolithotomy (PCNL) is challenging. Using the single semirigid dilator, also called “one-shot” or “one-stage” is a good alternative to routine telescopic metal dilators to reduce X-ray exposure. Our aim was to compare the single semirigid one-shot dilator with a telescopic metal dilator in PCNL. The intraoperative status was evaluated in 100 consecutive patients randomly assigned to two equal groups undergoing PCNL either with the one-shot (group A) or telescopic technique (group B). No significant difference in stone burden and location existed between the groups (P > 0.05). The mean age of group A and group B was 44.8 ± 15 and 45.6 ± 14 years, respectively (P = 0.78). The mean operation time was 51.14 ± 40.85 min in group A and 57.00 ± 38.85 min in group B (P = 0.46). The mean X-ray exposure time was 41.2 ± 17 and 48.4 ± 15 s in group A and group B, respectively (P = 0.03). The stone-free rate was 94 % (n = 47) in group A and 84 % (n = 42) in group B (P = 0.10). The mean hemoglobin drop was 1.26 ± 0.09 and 1.44 ± 0.11 g/dl in group A and group B, respectively (P = 0.09). The one-shot technique is feasible, safe, and well tolerated in patients undergoing PCNL. In addition to lack of complications, the method also provides less radiation exposure for urologists and nursing teams.

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Acknowledgments

We thank the staff of the Shahid Beheshti and Booali Hospitals, Urology and Nephrology Research Center, and the Chancellor of Research and Technology of Hamadan University of Medical Sciences, Hamadan, Iran for their help during the study, and also Davood Yarmohammad Tooski (MD) and Abbas Moradi (Community Medicine Specialist) for primary analysis and interpretation of the data.

Sources of financial support

All authors are employees of Hamadan University of Medical Sciences. This study was approved and supported financially by the Chancellor of Research and Technology of Hamadan University of Medical Sciences and Urology & Nephrology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran. The funders had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Urology and Nephrology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran

    Shahriar Amirhassani, Seyed Habibollah Mousavi-Bahar & Abdolmajid Iloon Kashkouli

  2. Research Center for Behavioral Disorders and Substance Abuse, Hamadan University of Medical Sciences, Hamadan, Iran

    Saadat Torabian

  3. Urology and Nephrology Research Center, Beheshti Hospital, Eram Blvd, 6516783871, Hamadan, Iran

    Shahriar Amirhassani, Seyed Habibollah Mousavi-Bahar, Abdolmajid Iloon Kashkouli & Saadat Torabian

Authors
  1. Shahriar Amirhassani
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  2. Seyed Habibollah Mousavi-Bahar
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  3. Abdolmajid Iloon Kashkouli
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  4. Saadat Torabian
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Correspondence to Abdolmajid Iloon Kashkouli.

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Amirhassani, S., Mousavi-Bahar, S.H., Iloon Kashkouli, A. et al. Comparison of the safety and efficacy of one-shot and telescopic metal dilatation in percutaneous nephrolithotomy: a randomized controlled trial. Urolithiasis 42, 269–273 (2014). https://doi.org/10.1007/s00240-014-0644-5

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  • DOI: https://doi.org/10.1007/s00240-014-0644-5

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