Renal Cell Carcinoma with Venous Extension: Safety of Laparoscopic Surgery for Thrombus Levels I-IIIa.

Background: Novel studies are helping to consider minimally invasive surgery for treating patients with renal cell carcinoma and venous tumor thrombus. Evidence regarding its feasibility and safety is still sparse and does not include a subclassification for level III thrombi. We aim to compare the safety of laparoscopic vs open surgery in patients with levels I-IIIa thrombus. Materials and Methods: This is a cross-sectional comparative study using single-institutional data on adult patients treated surgically between June 2008 and June 2022. Participants were categorized into open and laparoscopic surgery groups. Primary outcome was difference in the incidence of 30-day major postoperative complications (Clavien-Dindo III-V) between groups. Secondary outcomes were differences in operative time, length of hospital stay, intraoperative blood transfusions, delta hemoglobin level, 30-day minor complications (Clavien-Dindo I-II), estimated overall survival, and progression-free survival between groups. A logistic regression model was performed including adjustment for confounding variables. Results: Overall, 15 patients in the laparoscopic group and 25 patients in the open group were included. Major complications occurred in 24.0% of patients within the open group and 6.7% of patients were treated laparoscopically (p = 0.120). Minor complications arose in 32.0% of patients treated with open surgery and in 13.3% of patients treated in the laparoscopic group (p = 0.162). Although not significant, there was a higher perioperative death rate within open surgery cases. The laparoscopic approach presented a crude odds ratio for major complications of 0.22 (95% confidence interval 0.02-2.1, p = 0.191) compared with open surgery. No differences were found between groups regarding oncologic outcomes. Conclusion: Laparoscopic approach for patients with venous thrombus levels I-IIIa seems to be as safe as open surgery.

Hereditary Renal Cell Carcinoma: Is Age an Independent Criterion for Genetic Testing? A Large Cohort from a Latin America Referral Center.

Although age younger than 46 years has been an independent criterion for genetic testing in hereditary renal cell carcinoma (hRCC), there is a lack of evidence in the literature. This study aims to analyze whether a 46-year-old cut-off should be considered an independent genetic testing criterion and to elucidate risk factors predicting a positive genetic test. Observational study from January 2010 to December 2021. All patients under 46 years with a non-metastatic kidney mass and surgical indication were included. We assume patients who relapse in the first 5 years of follow-up could have a positive genetic test. As risk factors for relapse, ergo positive genetic test, we consider those patients who presented multifocal, bilateral, or previous renal tumor. Of 2,232 nephrectomies for kidney cancer, 301 patients met the inclusion criteria. The median follow-up was 60 months (IQR 29-101). The estimated five-year RFS was 94.4% (95% CI 91.3-97.5). Tumor size, previous renal tumor, multifocality, bilaterality, and pT3 or pT4 stage were independent recurrence risk factors. Genetic testing was performed on 24 patients. 10 patients had pathogenic variants in the test, 8 of which recurred during their life. 46-year-old cut-off has shown low performance in genetic testing. Therefore, we recommend that it be considered only if other hRCC risk criteria exist. Multifocality, bilaterality, and previous renal tumor could predict a positive genetic test.

[Predictors of complex urethral surgery in anterior urethral stricture disease.] / Predictores de cirugía uretral compleja en estenosis de la uretra anterior.

OBJECTIVE: To determine the clinical-surgical factors associated with Complex Urethral Surgery (CUC) in anterior urethral stenosis. MATERIAL AND METHOD: This is a cross-sectional study with retrospective data recording, including all male patients who under went anterior urethroplasty between 2011 and 2018. CUC included two or more grafts urethroplasty, excisional augmented anastomotic urethroplasty, combined flaps and grafts urethroplasty and stages surgery. The data were collected from the electronic medical record, recording the demographic data, background of previous treatments as well as the characteristics of the stenosis (etiology, anatomical location, length, number of strictures, among others). A univariate and multivariate analysis were conducted using the chi-squared test and logistic regression to identify the variables related to CUC. RESULTS: The data of 665 patients met the inclusion criteria were analyzed. The mean age was 56.1 years, 27.5% were smokers, 32.5% had received some previous treatment, and dilatations were the most common procedure. The most prevalent etiology was iatrogenic, followed by idiopathic in a 61.1 and 20.3% respectively. Bulbar urethral stricture were the most common location (56.2%) while the mean length of the stenosis was 4.8 cm. After univariate and multivariate analysis, previous dilations (HR 2.6), multifocality (2.51), lengthof stenosis (>4 cm) (HR 1.49) and the hypospadias etiology (HR 11.9) were independent predictors for CUC (p<0.05)CONCLUSIONS: Hypospadias was the only etiology factor that predicts the need for CUC. Regarding radiological findings, extensive and multifocal stenosis, were predictors of complex surgery. History of previous dilations were also predictors of CUC.

OBJETIVO: Determinar los factores predictores asociados a Cirugía Uretral Compleja (CUC) en los casos de estenosis de la uretra anterior.MATERIAL Y MÉTODO: Estudio transversal con registro de datos retrospectivo, incluye a todos los pacientes masculinos a quienes se les practicó una plastía de la uretra anterior entre 2011 y 2018. Como CUC se consideró a la Uretroplastia con dos o más injertos, la anastomosis término terminal ampliada, la uretroplastia combinada y la cirugía por estadíos. Los datos se recabaron de la historia clínica electrónica consignándose aquellos demográficos, antecedente de tratamientos previos, así como las características de la estenosis (etiología, ubicación anatómica, longitud, número de estenosis entre otras). Se realizó un análisis univariado y multivariado para identificar variables predictoras de CUC. RESULTADOS: Se analizaron los datos de 665 pacientes con criterios de inclusión válidos. La media de edad fue de 56,1 años, 27,5% eran fumadores crónicos, 32,5% habían recibido algún tratamiento previo, siendo las dilataciones el procedimiento más común (17,6%), la etiología más prevalente fue la iatrógena seguida por la idiopática en un 61,1 y un 20,3% respectivamente, la ubicación más común fue la uretra bulbar en 56,2% mientras que la media de longitud de la estenosis fue de 4,8 cm. En el análisis univariado y multivariable el antecedente de dilataciones (HR 2,6), la multifocalidad (HR 2,51), la longitud de la estenosis (>4 cm) (HR 1,49) y la etiología hipospadias (HR 11,9) resultaron ser factores predictores independientes para CUC (p<0,05). CONCLUSIONES: La hipospadia fue dentro de las etiologías analizadas la única que predice la necesidad de CUC. En lo que respecta a antecedentes y hallazgos radiológicos, las dilataciones y las estenosis extensas y multifocales respectivamente fueron predictores de CUC.

[Study on most common overnight urological service consultations.] / Principales consultas urológicas a la guardia de un hospital de alta complejidad.

INTRODUCTION: In Argentina, our institutionhas a urology resident on call who handles requests to the single radio during nighttime. Few studies address this important issue that provides useful information to promote education and optimize hospital dynamics. OBJECTIVE: To describe the characteristics of the calls received in the urology radio during night shifts. MATERIALS AND METHODS: During the night shifts, all calls to the radio were recorded during the period between June and July 2019. We determined: time, source, sex, and age of the patient, reason for the call and classified the calls according to: calls for immediate resolution (which required urological instrumental intervention, bladder catheterization or lavage, etc.), unnecessary calls (wrong number), and the number of emergencies that require calling a superior for immediate surgical resolution. RESULTS: We registered a total of 325 calls, most of them male patients. The main reason for calling was for placement, replacement, or washing of the urinary catheter or suprapubic catheter. We obtained 139 calls that required urological intervention. The highest number of calls was from the emergency department (119), followed by the Internal Medicine staff (47). Most of them (242) did not require patient admission. The total of unnecessary calls was three, corresponding to wrong number. CONCLUSION: This study helped us to characterize the calls to the Urology radio from other services and emergency department, allowing us to identify the most common problems and educate based on this.

INTRODUCCIÓN: En Argentina nuestra institución cuenta con un residente de guardia activa de urología que se ocupa de las llamadas al radio único durante la noche. Existen pocos trabajos que tratan este tema que resulta importante, ya que brinda información útil para promover educación y optimizar la dinámica hospitalaria.OBJETIVO: Describir las características de las llamadas al radio de urología durante la guardia.MATERIALES Y MÉTODOS: Durante la guardia activa, se registraron llamadas al radio durante el período comprendido en junio y julio de 2019. Determinamos:  hora, fuente, sexo y edad del paciente, motivo de la llamada y los clasificamos según: llamadas para guardia inmediata (que necesitó intervención instrumental urológica como sonda, talla o lavado vesical, etc.), llamadas innecesarias (número equivocado) y número de urgencias que requieren llamar a médico urólogo de pasiva para guardia quirúrgica inmediata.RESULTADOS: Se recopilaron un total de 325 llamadas, la mayoría de pacientes de sexo masculino. El principal motivo de la llamada fue para colocación, recambio o lavado de sonda vesical y/o talla vesical. Obtuvimos 139 llamadas que requirieron intervención urológica. El mayor número de llamadas fue de la Guardia externa (119), seguidos de Clínica Médica (47). La mayoría de las llamadas (242) no fueron ingresos. El total de llamadas innecesarias fueron 3 que corresponden al número equivocado.CONCLUSIÓN: Este trabajo permitió detallar las llamadas al radio de Urología provenientes de otros servicios y guardia externa, pudiendo identificar las problemáticas más comunes y educar en base a esto.