Purpose: To validate the output of a machine learning-based software as an intelligible interface for predicting multiple outcomes after percutaneous nephrolithotomy (PCNL). We compared the performance of this system with Guy's stone score (GSS) and the Clinical Research Office of Endourological Society (CROES) nomogram. Patients and Methods: Data from 146 adult patients (87 males, 59%) who underwent PCNL at our institute were used. To validate the system, accuracy of the software for predicting each postoperative outcome was compared with the actual outcome. Similarly, preoperative data were analyzed with GSS and CROES nomograms to determine stone-free status as predicted by these nomograms. A receiver operating characteristic (ROC) curve was generated for each scoring system, and the area under the ROC curve (AUC) was calculated and used to assess the predictive performance of all three models. Results: Overall stone-free rate was 72.6% (106/146). Forty of 146 patients (27.4%) were scheduled for 42 ancillary procedures (extracorporeal shockwave lithotripsy [SWL] [n = 31] or repeat PCNL [n = 11]) to manage residual renal stones. Overall, the machine learning system predicted the PCNL outcomes with an accuracy ranging between 80% and 95.1%. For predicting the stone-free status, the AUC for the software (0.915) was significantly larger than the AUC for GSS (0.615) or CROES nomograms (0.621) (p < 0.001). Conclusion: At the internal institutional level, the machine learning-based software was a promising tool for recording, processing, and predicting outcomes after PCNL. Validation of this system against an external dataset is highly recommended before its widespread application.

The purpose of this research is to provide a conceptual overview on published studies and articles related to social media and information systems as two independent, continuous and interdependent concepts. The research data is from the survey for two social media keywords and information systems from the Scopus site, which is one of the main scientific search engines. Due to a large number of findings, the study area was limited to 6 major areas of social sciences, business management, economics, arts and humanities, psychology and decision-making sciences, and 5185 articles were found. To investigate and analyze the findings, the Romethometrics and bibliometrics library of R Studio software were used. Biblimetrix was a method for studying and evaluating quantitative scientific texts using mathematical and statistical methods. The data obtained from this research is useful for scholars, researchers, decision-makers and those interested in social media and information networks in the political, economic, social and cultural spheres.

Primary renal squamous cell carcinoma (SCC) is a very rare upper urinary tract neoplasm. Renal SCC has a poor prognosis because it usually presents in advanced stages. We report a 64-year-old woman with a right paravertebral mass; after right radical nephroureterectomy and salpingo-oophorectomy, pathologic examination revealed primary SCC.

Introduction and hypothesis The objective was to translate the International Consultation of Incontinence Questionnaire (ICIQ) bladder diary into Persian and validate it among the Iranian population with lower urinary tract symptoms. Methods After obtaining permission from the ICIQ group to translate the ICIQ bladder diary into Persian, we translated, backtranslated it, and developed a Persian ICIQ bladder diary. Then, we evaluated its reliability and validity virtually via social media owing to some limitations caused by the COVID-19 pandemic. We calculated the content validity index (CVI) and content validity ratio (CVR) quantitatively. Results Thirty-nine participants completed the final version of the ICIQ bladder diary. Most of the participants were female (76.3%). For face validity, we interviewed 10 participants. Most of them considered it easy to complete the bladder diary, using a 500-ml measuring cup. Ten experts' panel determined the CVI, and the CVR. All ICIQ bladder diary criteria gained a high score, and all experts believed that all criteria of the diary were essential for patient evaluation (CVI: 0.89 to 1). Cronbach's alpha coefficient in all diary parameters was greater than 0.80 indicating high internal consistency. The test-retest reliability by intraclass correlation coefficients (ICC) for each diary parameters showed a high score indicating good agreement between the first and second test diaries. Conclusion The Persian ICIQ bladder diary demonstrates good stability and strong content validity among the Iranian population with lower urinary tract symptoms.

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