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ORIGINAL ARTICLE
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Comparison of single-step renal dilatation and serial renal dilatation in percutaneous nephrolithotomy: A retrospective case–control study


1 Department of Urology, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
2 Department of Urology, TNMC and BYL Nair Hospital, Mumbai Central, Mumbai, Maharashtra, India

Correspondence Address:
Amit Sharma,
Department of Urology, All India Institute of Medical Sciences, GE Road, Raipur - 492 099, Chhattisgarh
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/UA.UA_118_20

Background: Access to the pelvi-calyceal system and subsequent dilatation of the tract are among the initial important steps in percutaneous nephrolithotomy (PCNL). In this study, we share our experience with single-step renal dilatation when compared to multiple serial renal dilatation in PCNL. Materials and Methods: This is a retrospective study wherein 35 patients who underwent PCNL by single-step renal dilatation by appropriate size Amplatz Dilator were compared with 35 patients who underwent multi-step serial renal dilatation using serial metallic Alken dilators. These patients were analyzed on the basis of demographic profile, total intra-operative time, fluoroscopic time, intra-operative and postoperative complications, stone clearance, requirement of blood transfusion, duration of hospital stay, and follow-up. Results: There were no significant differences in the demographic profile among the patients in these two groups. The mean total operative duration and fluoroscopic duration were less in single step renal dilatation group, and these have been found to be statistically significant (P < 0.05). There were no statistically significant differences in the rates of other complications – incomplete stone clearance, bleeding and hematoma formation, requirement of blood transfusion, duration of hospital stay, and follow-up. Conclusion: Operative duration and rate of radiation exposure are significantly less in PCNL by single-step renal dilatation; however, there is no statistically significant difference in the rates of other complications.


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    -  Sharma A
    -  Parab S
    -  Goyal G
    -  Patel A
    -  Andankar M
    -  Pathak H
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