1. Does tumor rupture during robot-assisted partial nephrectomy have an impact on mid-term tumor recurrences?Simon Hawlina, Kosta Cerović, Andraž Kondža, Peter Popović, Jure Bizjak, Tomaž Smrkolj, 2023, izvirni znanstveni članek Povzetek: Background: Intraoperative kidney tumor rupture (TR) can occur during robot-assisted partial nephrectomy (RAPN) in daily clinical practice, but there are no solid guidelines on the management and implications of it. The purpose of the study was to investigate the impact of TR on tumor recurrences, what a surgeon should do if this adverse event occurs, and how to avoid it. Patients and methods: We retrospectively analyzed the first 100 patients who underwent RAPN at University Medical Centre Ljubljana, between 2018 and 2021. Patients were stratified into 2 groups (TR and no-TR) and were compared according to patient, tumor, pathologic, perioperative and postoperative characteristics and tumor recurrences, using the Mann-Whitney U test and chi-squared test. Results: Of the 100 patients, 14 had TR (14%); this occurred in tumors with higher RENAL nephrometry scores (P = 0.028) and mostly with papillary renal cell carcinomas (P = 0.043). Median warm ischemia time was longer for the TR group (22 vs. 15 min, P = 0.026). In terms of studied outcomes, there were no cases of local or distant recurrence after a median observation time of 39 months (interquartile range, 31-47 months) in both groups. We observed positive surgical margins on the final oncologic report in one case in the no-TR group. Conclusions: Tumor rupture during RAPN seems to be of no mid-term oncologic importance. According to presented results, we would recommend surgeons to proceed with tumor resection if this event occurs and abstain from conversion to radical nephrectomy or open partial nephrectomy. However, more similar cases should be studied to make more solid conclusions.
Ključne besede: enucleation, renal cell carcinoma, robot-assisted partial nephrectomy, tumor recurrence, tumor rupture, warm ischemia time
Objavljeno v DiRROS: 25.07.2024; Ogledov: 208; Prenosov: 148
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2. The performance of the Xpert Bladder Cancer Monitor Test and voided urinary cytology in the follow-up of urinary bladder tumorsTomaž Smrkolj, Urška Čegovnik Primožič, Teja Fabjan, Saša Šterpin, Joško Osredkar, 2021, izvirni znanstveni članek Povzetek: Background: Cystoscopy in complement with urinary cytology represents the gold standard for the follow-up of patients with urinary bladder tumours. Xpert Bladder Cancer Monitor Test (XBC) is a novel mRNA-based urine test for bladder cancer surveillance. The aim of the study was to evaluate the performance of the XBC and voided urinary cytology (VUC) in the follow-up of bladder tumours. Patients and methods. The XBC was performed on stabilized voided urine and VUC was performed on urine samples. The results were compared to cystoscopic findings and histopathological results after transurethral resection of the bladder lesion. Results. For the prediction of malignant histopathological result sensitivity, the specificity and negative predictive value were 76.9%, 97.5% and 93.0% for the XBC and 38.4%, 97.5% and 83.3%, respectively for VUC. For the prediction of suspicious or positive cystoscopic finding sensitivity, the specificity and negative predictive value were 75.0%, 95.2%, and 93.0% respectively for the XBC and 41.7%, 97.6%, and 85.4% for VUC. The sensitivities for papilary urothelial neoplasms of low malignant potential (PUNLMP), low- and high-grade tumours were 0.0%, 66.7% and 100.0% for the XBC and 0.0%, 66.7% and 42.9%, respectively for VUC. Conclusions: The XBC showed significantly higher overall sensitivity and negative predictive value than VUC and could be used to increase the recommended follow-up cystoscopy time intervals. Complementing the XBC and voided urinary cytology does not improve performance in comparison to the XBC alone.
Ključne besede: cystoscopy, Xpert BC monitor test, urinary bladder neoplasm, voided urinary cytology
Objavljeno v DiRROS: 19.07.2024; Ogledov: 240; Prenosov: 109
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3. Current and innovative approaches in the treatment of non-muscle invasive bladder cancer : the role of transurethral resection of bladder tumor and organoidsMilena Taskovska, Mateja Erdani-Kreft, Tomaž Smrkolj, 2020, pregledni znanstveni članek Povzetek: Background. Bladder cancer is the 7th most common cancer in men. About 75% of all bladder cancer are nonmuscle invasive (NMIBC). The golden standard for definite diagnosis and first-line treatment of NMIBC is transurethral resection of bladder tumour (TURB). Historically, the monopolar current was used first, today bipolar current is preferred by most urologists. Following TURB, depending on the tumour grade, additional intravesical chemo- or/and immunotherapy is indicated, in order to prevent recurrence and need for surgical resection. Development of new technologies, molecular and cell biology, enabled scientists to develop organoids % systems of human cells that are cultivated in the laboratory and have characteristics of the tissue from which they were harvested. In the field of urologic cancers, the organoids are used mainly for studying the course of different diseases, however, in the field of bladder cancer the data are scarce. Conclusions. Different currents - monopolar and bipolar, have different effect on urothelium, that is important for oncological results and pathohistological interpretation. Specimens of bladder cancer can be used for preparation of organoids that are further used for studying carcinogenesis. Bladder organoids are step towards personalised medicine, especially for testing effectiveness of chemo-/immunotherapeutics.
Ključne besede: bladder cancer, transurethral resection of bladder tumour, monopolar/bipolar current, consensus molecular subtype
Objavljeno v DiRROS: 12.07.2024; Ogledov: 196; Prenosov: 107
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