Is there a superiority of the stone volume measured in 3-D non-contrast tomography to the stone area in predicting the stone-freeness of the retrograde intrarenal surgery success?

Authors : Yurdaer KAYNAK, Hakan KILIÇARSLAN, Emre OKEER, Burhan COŞKUN

Pages : 258-264

Doi:10.31362/patd.1190940

View : 21 | Download : 13

Publication Date : 2023-04-05

Article Type : Research Paper

Abstract :Objectives: To examine the predictive effect of preoperative stone volume insert ignore into journalissuearticles values(SV); against stone area insert ignore into journalissuearticles values(SA); on stone-free status insert ignore into journalissuearticles values(SF); following retrograde ıntrarenal surgery insert ignore into journalissuearticles values(RIRS);. Materials and methods: We retrospectively examined the medical records of 68 RIRS patients with renal calculi who were eligible. Patients having Non-Contrast Tomography insert ignore into journalissuearticles values(NCCT); before and subsequent to RIRS were included, however staghorn stones and inability to access were omitted. SF status was determined by the absence of visible stones on the NCCT three months after RIRS. Using a software reconstruction tool using 3-D NCCT, a radiologist determined stone load characteristics, such as SA and SV. Using a logistic regression model, the assessment of potential SF status determinants was conducted. Results: Age, stone density, quantity and position of stones, usage of access sheath, failed prior SWL, and procedures were not substantially linked with non-SF status, however gender insert ignore into journalissuearticles values(p=0.014);, SA insert ignore into journalissuearticles values(p=0.001);, and SV insert ignore into journalissuearticles values(p=0.002); were strongly associated with non-SF status. The association between SV and SA was strong insert ignore into journalissuearticles values(r=0.866, p<0.001);. A pairwise assessment of the ROC curves for SV and SA revealed no statistically significant difference in their specificities insert ignore into journalissuearticles values(p=0.274);. Nevertheless, the multivariate analysis showed that SA was the sole independent predictor of SF status insert ignore into journalissuearticles values(p=0.001);. Conclusions: Both SA and SV were strongly suggestive of SF status after the RIRS. However, SA was only identified as an independent predictor of SF status after RIRS and as a sufficient predictor of SF status after RIRS.
Keywords : Taş yükü, 3 boyutlu ölçüm, lazer litotripsi, tedavi başarısı