A New Nomogram to Predict the Success of Shock Wave Lithotripsy in Ureteral Stones
Purpose. To design a new nomogram predicting the probability of stone-free status of shock wave lithotripsy (SWL) in patients with ureteral stones. Materials and Methods. We retrospectively enrolled 2,144 patients with ureteral stones who underwent SWL between January 1993 and April 2020. The demogr...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
|
| Series: | International Journal of Clinical Practice |
| Online Access: | http://dx.doi.org/10.1155/2024/6872476 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832546144276709376 |
|---|---|
| author | Muhammed Fatih Simsekoglu Engin Derekoylu Mustafa Ozkaya Muhammet Demirbilek Ugur Aferin Berin Selcuk Ahmet Erozenci Bulent Onal |
| author_facet | Muhammed Fatih Simsekoglu Engin Derekoylu Mustafa Ozkaya Muhammet Demirbilek Ugur Aferin Berin Selcuk Ahmet Erozenci Bulent Onal |
| author_sort | Muhammed Fatih Simsekoglu |
| collection | DOAJ |
| description | Purpose. To design a new nomogram predicting the probability of stone-free status of shock wave lithotripsy (SWL) in patients with ureteral stones. Materials and Methods. We retrospectively enrolled 2,144 patients with ureteral stones who underwent SWL between January 1993 and April 2020. The demographic and clinical parameters were assessed. The predictors of stone-free status following SWL were identified. A logistic regression-based nomogram was created by including the significant predictors in the multivariate analysis. Results. The mean age was 42.93 ± 13.85 in the stone-free group (Group 1) and 46.51 ± 13.66 in the treatment-failure group (Group 2) (p=0.001). The cutoff value of the age was 45.5 years. The mean stone load was 0.71 ± 0.36 cm2 in Group 1 and 0.96 ± 0.51 cm2 in Group 2 (p=0.001). Of the 2,144 patients, 1,708 (79.6%) were stone-free within the first three SWL sessions. According to the multiple logistic regression analysis, older age, a stone load larger than 1 cm2, the presence of multiple stones, third-generation lithotripter use, and pre-SWL catheterization were statistically associated with low stone-free rates. The C-index was determined to be 0.75 in the bootstrapping method. Conclusion. A stone load larger than 1 cm2, age older than 45.5 years, the presence of multiple stones, new- (third-) generation lithotripter use, and pre-SWL catheterization had statistically significant effects on lower stone-free rates in patients who underwent SWL due to ureteral stones. A nomogram was developed to predict the success of SWL. As a result of the internal validation of the nomogram, it was concluded to be suitable for clinical use. |
| format | Article |
| id | doaj-art-86c7066813e04f6782333fe790d0860b |
| institution | Kabale University |
| issn | 1742-1241 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Clinical Practice |
| spelling | doaj-art-86c7066813e04f6782333fe790d0860b2025-02-03T07:23:45ZengWileyInternational Journal of Clinical Practice1742-12412024-01-01202410.1155/2024/6872476A New Nomogram to Predict the Success of Shock Wave Lithotripsy in Ureteral StonesMuhammed Fatih Simsekoglu0Engin Derekoylu1Mustafa Ozkaya2Muhammet Demirbilek3Ugur Aferin4Berin Selcuk5Ahmet Erozenci6Bulent Onal7Department of UrologyDepartment of UrologyDepartment of UrologyDepartment of UrologyDepartment of UrologyDepartment of UrologyDepartment of UrologyDepartment of UrologyPurpose. To design a new nomogram predicting the probability of stone-free status of shock wave lithotripsy (SWL) in patients with ureteral stones. Materials and Methods. We retrospectively enrolled 2,144 patients with ureteral stones who underwent SWL between January 1993 and April 2020. The demographic and clinical parameters were assessed. The predictors of stone-free status following SWL were identified. A logistic regression-based nomogram was created by including the significant predictors in the multivariate analysis. Results. The mean age was 42.93 ± 13.85 in the stone-free group (Group 1) and 46.51 ± 13.66 in the treatment-failure group (Group 2) (p=0.001). The cutoff value of the age was 45.5 years. The mean stone load was 0.71 ± 0.36 cm2 in Group 1 and 0.96 ± 0.51 cm2 in Group 2 (p=0.001). Of the 2,144 patients, 1,708 (79.6%) were stone-free within the first three SWL sessions. According to the multiple logistic regression analysis, older age, a stone load larger than 1 cm2, the presence of multiple stones, third-generation lithotripter use, and pre-SWL catheterization were statistically associated with low stone-free rates. The C-index was determined to be 0.75 in the bootstrapping method. Conclusion. A stone load larger than 1 cm2, age older than 45.5 years, the presence of multiple stones, new- (third-) generation lithotripter use, and pre-SWL catheterization had statistically significant effects on lower stone-free rates in patients who underwent SWL due to ureteral stones. A nomogram was developed to predict the success of SWL. As a result of the internal validation of the nomogram, it was concluded to be suitable for clinical use.http://dx.doi.org/10.1155/2024/6872476 |
| spellingShingle | Muhammed Fatih Simsekoglu Engin Derekoylu Mustafa Ozkaya Muhammet Demirbilek Ugur Aferin Berin Selcuk Ahmet Erozenci Bulent Onal A New Nomogram to Predict the Success of Shock Wave Lithotripsy in Ureteral Stones International Journal of Clinical Practice |
| title | A New Nomogram to Predict the Success of Shock Wave Lithotripsy in Ureteral Stones |
| title_full | A New Nomogram to Predict the Success of Shock Wave Lithotripsy in Ureteral Stones |
| title_fullStr | A New Nomogram to Predict the Success of Shock Wave Lithotripsy in Ureteral Stones |
| title_full_unstemmed | A New Nomogram to Predict the Success of Shock Wave Lithotripsy in Ureteral Stones |
| title_short | A New Nomogram to Predict the Success of Shock Wave Lithotripsy in Ureteral Stones |
| title_sort | new nomogram to predict the success of shock wave lithotripsy in ureteral stones |
| url | http://dx.doi.org/10.1155/2024/6872476 |
| work_keys_str_mv | AT muhammedfatihsimsekoglu anewnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT enginderekoylu anewnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT mustafaozkaya anewnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT muhammetdemirbilek anewnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT uguraferin anewnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT berinselcuk anewnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT ahmeterozenci anewnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT bulentonal anewnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT muhammedfatihsimsekoglu newnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT enginderekoylu newnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT mustafaozkaya newnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT muhammetdemirbilek newnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT uguraferin newnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT berinselcuk newnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT ahmeterozenci newnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones AT bulentonal newnomogramtopredictthesuccessofshockwavelithotripsyinureteralstones |