Learning curve of ultrasound-guided percutaneous nephrolithotripsy in the treatment of complex renal calculi.

Objective: This study was performed to investigate the learning curve of ultrasound-guided percutaneous nephrolithotripsy (PCNL) for the treatment of complex renal calculi.

Methods: Seventy-two patients with complex renal stones who underwent ultrasound-guided PCNL by the same operator from November 2016 to September 2020 were retrospectively analyzed. The learning curve of PCNL for complex renal stones was analyzed using multifactorial cumulative sum (CUSUM) analysis and best-fit curves.

Nomogram to predict risk and prognosis of synchronous lung metastasis in renal cell carcinoma: A large cohort analysis.

We aimed to construct and validate nomogram models that predict the incidence of lung metastasis (LM) in patients with renal cell carcinoma (RCC) and evaluate overall survival (OS) and cancer-specific survival (CSS) among RCC patients with LM. The Surveillance, Epidemiology, and End Results database was analyzed for RCC patients diagnosed between 2010 and 2015. The X-tile program was used to determine the best cutoff values for age at initial diagnosis and tumor size.

Construction and validation of a novel prognostic nomogram for patients with metastatic renal cell carcinoma: a SEER-based study.

Objective: We aimed to establish and validate nomograms to evaluate overall survival (OS) and cancer-specific survival (CSS) in patients with metastatic renal cell carcinoma (MRCC).

Methods: Between 2010 and 2015, the clinical information of patients with MRCC was selected using the Surveillance, Epidemiology, and End Results database. Two nomograms were constructed based on Cox regression analysis, and their prediction accuracy was evaluated by concordance index (C-index), receiver operating characteristic (ROC) curve, and decision curve analysis (DCA).

The feasibility and safety of modified robot-assisted enucleation for highly complex renal tumors: research on a surgical technique.

Background: To report the technical feasibility and oncological safety of modified robot-assisted enucleation for highly complex renal tumors using the combined retroperitoneoscopic and transperitoneoscopic accesses.

Methods: The present research is a retrospective analysis of 166 cases of highly complex renal tumors that underwent a partial nephrectomy at a tertiary academic institution between September 2014 and August 2017. Consecutive consented patients were grouped into two cohorts.

Endoscopic robot-assisted simple enucleation of renal tumours: Impact of learning curve and tumour complexity on trifecta outcomes.

Background: In this article, we report the outcomes of endoscopic robot-assisted tumour enucleation (ERASE) using a trifecta system.

Methods: One hundred eighty-two patients were treated with ERASE by a single surgeon between October 2014 and February 2017 and were stratified by quartiles of distribution called ERASE eras 1 to 4 and preoperative aspects and dimensions used for an anatomical (PADUA) score risk group categories. The trifecta achievement rates in different ERASE eras and PADUA score risk group categories were analysed.