• Özer Güzel, Can Aykanat, Yılmaz Aslan, Ahmet Asfuroğlu, Melih Balcı, and Altuğ Tuncel.
• Department of Urology, Ankara Numune Research and Training Hospital, University of Health Sciences, Ankara, Turkey
• Turk J Med Sci. 2021 Jun 28; 51 (3): 1310-1316.

Background/AimOpen or percutaneous renal stone surgery can have an adverse effect on the collecting system of the kidney. We evaluated retrograde intrarenal surgery outcomes in patients with ≤30 mm renal stones who had open or percutaneous renal stone surgery history.Materials And MethodsA total of 707 patients who underwent retrograde intrarenal surgery treatment were included in this study. Fifty-six patients had open or percutaneous renal stone surgery history (Group 1) and the remaining did not (Group 2, n = 651). The groups were compared in terms of age, stone size, stone-free rates, and complications.ResultsThe mean age of the patients was 51.16 ± 14.8 and 45.95 ± 14.6 years in Groups 1 and 2, respectively (p = 0.008). The mean stone size was 14.97 ± 6.1 mm and 16.47 ± 6.9 mm in Groups 1 and 2, respectively (p = 0.107). The stone-free rates were 71.4% and 84.1% in Group 1 and 2 respectively and it was significantly higher in Group 2 (p = 0.013). The overall rate of postoperative complications was higher in Group 1 (p = 0.019), but there was no difference between the two groups in terms of Clavien 1–2 and 3–4a complication rates.ConclusionOur results showed that having a history of open or percutaneous renal stone surgery has a negative effect on the success and complication rates in retrograde intrarenal surgery. Therefore, patients should be well informed before this operation.This work is licensed under a Creative Commons Attribution 4.0 International License.

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