Uro, Volume 4, Issue 3 (September 2024) – 6 articles

Bladder cancer (BCa) is the fourth most common cancer in men and one of the most common urinary tract cancers, especially in developed countries. The aim of this paper is to comprehensively analyze the biology of bladder cancer, including its epidemiology, etiology, histological types, risk factors, clinical symptoms, and diagnostic methods. The paper presents the dominant histological types of bladder cancer, such as transitional cell carcinoma (TCC), which accounts for 90–95% of cases, squamous cell carcinoma (SCC), and adenocarcinoma, which is much rarer. Risk factors, such as smoking, occupational exposure to chemicals, schistosomiasis, and genetic factors, which significantly affect the pathogenesis of bladder cancer, are also discussed. The paper focuses on modern diagnostic methods, including blue light cystoscopy (BLC) and computed tomography urography (CTU), which show increased sensitivity and specificity in detecting early neoplastic changes. The importance of TNM classification and the role of neoadjuvant chemotherapy in improving patient prognosis are also discussed. Based on a review of the scientific literature, the paper emphasizes the need for early diagnosis and an individualized therapeutic approach, which may contribute to improving the survival and quality of life of patients with bladder cancer. The potential for prevention, including quitting smoking and limiting exposure to harmful chemicals, has also been demonstrated to significantly reduce the risk of disease. Patient education and monitoring high-risk groups are key to reducing the incidence of bladder cancer. Full article

The management of erectile dysfunction (ED) shows several gray zones, especially in terms of patients’ satisfaction and adherence to the treatment. The main and first-line treatment for ED is drug therapy, mainly phosphodiesterase-5 inhibitors (PDE5is), but adherence to the therapy is not optimal due to the low patient satisfaction reported in several cases. To address this issue, different administration routes and PDE5i pharmacological formulations have been introduced in the pharmacological market. The pharmaceutical market has recently seen the introduction of a novel sildenafil oral suspension. This device offers access to all therapeutic regimens in one device, releasing 0.5 mL of suspension containing 12.5 mg of sildenafil with each pulse. This formulation enables tailored dosing based on clinical requirements and the demands of ED patients. Here, we aim to give a brief narrative review of the management of this new oral suspension in order to provide readers with some suggestions to use in everyday clinical practice, on the basis of recent evidence, by using an easy and rapid-to-consult question and answer form. Also included are the conclusions of a board meeting of experienced andrologists regarding the most recent developments in this area. Full article

To date, robotic surgery has gained much popularity, impacting deeply on surgical fields such as genitourinary system branches, general surgery, and cardiac surgery. We aim to outline the landscape of robotic surgery, focusing on design improvements, which have improved both the technical skills of surgeons and the outcomes of minimally invasive technique for patients. A thorough narrative literature review was conducted on PubMed/MEDLINE, employing keywords such as “robotic surgical system”, “robotic surgical device”, and “robotics AND urology”. Furthermore, the reference lists of the retrieved articles were scrutinized. The analysis focused on urological surgical systems from the 2000s to the present day. Beginning with the daVinci^® Era in the 2000s, new robotic competitors, including Senhance^®, Revo-I^®, Versius^®, Avatera^®, Hi-notori^®, and HugoTM RAS, have entered the medical market. While daVinci^® has maintained a high competitiveness, even more new platforms are now emerging in the medical market with new intriguing features. The growing competition, driven by unique features and novel designs in emerging robotic technologies, has the potential to improve application fields, enhance diffusion, and ameliorate the cost effectiveness of procedures. Since the impact of these new surgical technologies on different specialties and healthcare systems remains unclear, more experience and research are required to define their evolving role. Full article

Retroperitoneal tumors are uncommon and may reach a large size prior to causing symptoms or being noticed by the patient or physician. A middle-aged female consulted us for care during her “terminal” illness. She had already undergone four previous retroperitoneal resection surgical procedures. She presented with a large recurrent protruding mass from the right side of the abdomen and related a history of a previous cholecystectomy, right nephrectomy, right colectomy, and repeated resection of a recurrent retroperitoneal liposarcoma. She thus came to us for consultation and terminal care in order to be away from her friends during treatment for this terminal condition. After our consultation, she elected to have repeated surgical excisions of the tumor. The surgical excisions yielded a giant recurrent tumor mass, which overflowed and covered all margins of the 21-inch-wide surgical scrub basin. Over the next eleven years, she had multiple surgical resection procedures involving both the right and left retroperitoneum (a splenectomy, a left colectomy, and a colostomy). Recovery from each of these resection procedures (the final combined resection weight was 120 pounds) was without complications. However, the tumor finally encased the pancreas and the left kidney. If the tumor encasement were to be palliated and resected, she would require hemodialysis. At this time, the patient elected to have no further resection surgeries, no dialysis, nor any palliative chemoradiation treatment. Over a period of sixteen years from her first resection and twelve years from our first resection, the patient had continued to work at her medical administrative and leadership position and led a functional life after our consultation, except for her surgical period. The patient was not cured but benefited from repeated palliative surgeries, prolonging her life and improving her job performance. Full article

Background: To compare perioperative outcomes and trifecta rates between laparoscopic and robotic partial nephrectomies (PN) using the Hugo™ RAS System, a study was conducted between October 2022 and September 2023. Methods: Twenty-two patients underwent minimally invasive PN for cystic renal tumors at our institution (group A: RAPN = 6; group B: Laparoscopic PN = 16). The trifecta was defined as the coexistence of negative surgical margin status, no Clavien–Dindo grade ≥ 3 complications, and eGFR decline ≤ 30%. Continuous variables were presented as median and IQR and compared using the Mann–Whitney U test, while categorical variables were presented as frequencies (%) and compared using the χ² test. For all statistical analysis, a two-sided p-value < 0.05 was considered statistically significant. Results: All patients successfully underwent off-clamp minimally invasive PN without the need for conversion or additional port placement. Group A showed a lower preoperative eGFR rate and a higher clinical tumor size, while group B displayed a higher number of male patients and bilateral lesions. However, these differences were not statistically significant (all p > 0.1). Regarding perioperative data, group A showed a lower operative time (79.5 vs. 134.5 min, p = 0.01), while group B showed a higher trend of benign histology (62.5% vs. 33.3%). All the other perioperative data were comparable between the two groups (all p > 0.2). The rate of trifecta achievement was 83.3% and 87.5% (p = 0.80) for group A and B, respectively. Conclusion: This study emphasizes the advantages of RAPN over laparoscopic procedures in terms of operative time. Extensive experience in Laparoscopic PN could be a key factor when approaching RAPN learning curve. Full article

Microscopic and digital whole-slide images (WSIs) often suffer from limited spatial resolution, hindering accurate pathological analysis and cancer diagnosis. Improving the spatial resolution of these pathology images is crucial, as it can enhance the visualization of fine cellular and tissue structures, leading to more reliable and precise cancer detection and diagnosis. This paper presents a comprehensive comparative study on super-resolution (SR) reconstruction techniques for prostate WSI, exploring a range of machine learning, deep learning, and generative adversarial network (GAN) algorithms. The algorithms investigated include regression, sparse learning, principal component analysis, bicubic interpolation, multi-support vector neural networks, an SR convolutional neural network, and an autoencoder, along with advanced SRGAN-based methods. The performance of these algorithms was meticulously evaluated using a suite of metrics, such as the peak signal-to-noise ratio (PSNR), structural similarity index metrics (SSIMs), root-mean-squared error, mean absolute error and mean structural similarity index metrics (MSSIMs). The comprehensive study was conducted on the SICAPv2 prostate WSI dataset. The results demonstrated that the SRGAN algorithm outperformed other algorithms by achieving the highest PSNR value of 26.47, an SSIM of 0.85, and an MSSIM of 0.92, by 4× magnification of the input LR image, preserving the image quality and fine details. Therefore, the application of SRGAN offers a budget-friendly counter to the high-cost challenge of acquiring high-resolution pathology images, enhancing cancer diagnosis accuracy. Full article