Oncological outcomes in robot-assisted radical prostatectomy: the value of PSA density as a preoperative predictive factor.

Background: Pretreatment assessment of patients diagnosed with localized prostate cancer (PCa) is essential for therapeutic decision-making. Currently available staging systems based on prostate-specific antigen (PSA), Gleason score, and clinical stage allow for determining the prognostic characteristics of these patients. Several studies have evaluated the preoperative use of prostate-specific antigen density (PSAD) as a prognostic factor for further risk stratification. To date, the role of PSAD in this setting is still an object of debate. Objectives: The present analysis aimed to assess the predictive potential of PSAD for adverse oncological outcomes after robot-assisted radical prostatectomy (RARP) and to compare its accuracy to preoperative PSA (pPSA). Design and methods: We retrospectively reviewed 427 patients diagnosed with localized PCa who underwent RARP at a single institution between January 2015 and January 2020. Generating receiver operator characteristic (ROC) curves, calculating areas under the curves (AUCs), and using a linear regression model, we analyzed the association of PSAD and pPSA with postoperative positive surgical margins (PSM), Gleason score ⩾ 7, persistent PSA, and biochemical recurrence (BCR), with a median follow-up of 47 months. Results: PSAD showed a significant association with PSM (p < 0.0001), PSA persistence (p < 0.0001), and Gleason ⩾ 7 (p < 0.0001), without being statistically significant in predicting BCR (p = 0.098). The predictive value of PSAD was comparable to pPSA for outcomes of PSA persistence (AUC 0.727 versus 0.771) and Gleason ⩾ 7 (AUC 0.683 versus 0.649). Conclusion: PSAD is a predictive factor for postoperative oncological outcomes of PSM, Gleason score ⩾ 7, and persistence of PSA. Despite the need for further studies, PSAD could be useful as a prognostic parameter in conjunction with established staging systems.

Oncological outcomes in robot-assisted radical prostatectomy: the value of PSA density as a preoperative predictive factor Prostate-specific antigen density (PSAD) has an established role in the diagnostic process of prostate cancer (PCa). However, controversy remains on the assessment of its value as a pretreatment prognostic factor. The aim of our study was to evaluate the predictive ability of PSAD for oncological outcomes in PCa patients treated with robot-assisted radical prostatectomy (RARP) and to compare with the value of preoperative PSA (pPSA). The present analysis showed a significant association of PSAD with positive surgical margins (PSM), Gleason Score >=7 and prostate-specific antigen (PSA) persistence after RARP. Moreover, PSAD demonstrated to perform comparably to pPSA in predicting the outcomes of clinically significant PCa (csPCa) and post-RARP PSA persistence. Therefore, PSAD is considered a preoperative predictive factor potentially useful in conjunction with other previously established prognostic criteria and clinical features.

[Urodynamic AUR in Guillain-Barré syndrome post-infection by coronavirus Sars-CoV-2. A bibliographic review.] / Urodinámica de la RAO en el síndrome De Guillain-Barré post-infección por coronavirus Sars-Cov-2. Revisión bibliográfica.

INTRODUCTION AND OBJECTIVE: The SARS-CoV-2 coronavirus infection has beenassociated with the development of the novo genitourinarysymptoms and neurological symptomssecondary to peripheral nervous system damage.One of the neurological pathologies described associatedwith the infection has been Guillain-Barrésyndrome (GBS). We conducted a review of the literatureon SARS-CoV-2 infection and its relationshipwith lower urinary tract symptoms (LUTS), such asurinary retention (AUR). Bladder alterations derivedfrom neurological involvement by SARS-CoV-2,such as GBS, were also analyzed. An own case ispresented. MATERIAL AND METHODS: A literature searchwas performed using a combination of keywords(MeSH terms): "COVID", "COVID-19", "SARS-CoV-2","Urinary retention" and "Guillain-Barre Syndromeand Urodynamics". We searched for articles publishedup to March 2021. All articles identified fromthe bibliographic search were analyzed, using thePICOS criteria (participants, intervention, comparisons,results, type of study) to assess the eligibilityof the articles. Both prospective and retrospectivestudies, clinical cases and published systematicreviews were included. RESULTS: Findings in the academic literatureabout the associations between COVID-19 and RAO,LUTS and Guillain-Barré Syndrome are discussed,as well as their possible pathogenic mechanisms,A summary of relevant studies on urodynamic findingsin GBS patients is also provided. The resultsare summarized in attached tables. A case of AURassociated with COVID-19 and Guillain-Barré Syndromeis provided, with its urodynamic findings. CONCLUSION: Although the association betweenurinary symptoms and SARS-CoV-2 is not well described,there seems to be evidence of a possibleassociation, at least temporary, between the presentationof SARS-Cov-2 infection and the developmentof GBS with secondary LUT neurophysiologyalterations.

INTRODUCCIÓN Y OBJETIVO: La infecciónpor coronavirus SARS-CoV-2 se ha asociadoa la aparición de síntomas genitourinarios de novo,además de síntomas neurológicos secundarios al dañodel sistema nervioso periférico. Una de las patologíasneurológicas descritas asociadas a la infección ha sidoel síndrome de Guillain-Barré (SGB). Realizamos unarevisión de la literatura sobre la infección por SARSCoV-2 y su relación con los síntomas del tracto urinarioinferior (STUI), como la retención urinaria (RAO).Se analizaron también las alteraciones vesicales derivadasde la afectación neurológica por SARS-CoV-2,como el SGB. Se presenta un caso propio. MATERIAL Y MÉTODOS: Se realizó una búsquedade la literatura utilizando una combinación de palabrasclave (términos MeSH): "COVID", "COVID-19","SARS-CoV-2", "Urinary retention" y "Guillain-BarreSyndrome and Urodynamics". Se realizaron búsquedasde artículos publicados hasta marzo de 2021. Todos los artículos identificados a partir de la búsquedabibliográfica fueron analizados, utilizando los criteriosPICOS (participantes, intervención, comparaciones,resultados, tipo de estudio) para evaluar la elegibilidadde los artículos. Se incluyeron tanto estudios prospectivos,retrospectivos, casos clínicos y revisiones sistemáticaspublicadas. RESULTADOS: Se discuten los hallazgos en la literaturade las asociaciones entre COVID-19 y RAO, STUIy Síndrome de Guillain-Barré, así como sus posiblesmecanismos patogénicos. También se aporta un resumende trabajos relevantes sobre hallazgos urodinámicosen pacientes con SGB. Los resultados seresumen en tablas anexas. Se aporta un caso de RAOasociado a COVID-19 y Síndrome de Guillain-Barrécon sus hallazgos urodinámicos. CONCLUSIÓN: A pesar de la asociación entre síntomasurinarios y SARS-CoV-2 no está bien descrita, pareceque hay indicios de una posible asociación, al menostemporal entre la presentación de infección porcoronavirus SARS-Cov-2 y el desarrollo de un SGB conalteraciones de la neurofisiología del TUI secundaria.

Urodinámica de la rao en el Síndrome de Guillain-Barré post-infección por coronavirus SARS-COV-2. Revisión bibliográfica / Rao urodynamics in Guillain-Barré Syndrome post-infection by SARS-COV-2 coronavirus. Bibliographic review

INTRODUCCIÓN Y OBJETIVO: La infección por coronavirus SARS-CoV-2 se ha asociadoa la aparición de síntomas genitourinarios de novo,además de síntomas neurológicos secundarios al dañodel sistema nervioso periférico. Una de las patologíasneurológicas descritas asociadas a la infección ha sidoel síndrome de Guillain-Barré (SGB). Realizamos unarevisión de la literatura sobre la infección por SARSCoV-2 y su relación con los síntomas del tracto urinario inferior (STUI), como la retención urinaria (RAO).Se analizaron también las alteraciones vesicales derivadas de la afectación neurológica por SARS-CoV-2,como el SGB. Se presenta un caso propio.MATERIAL Y MÉTODOS: Se realizó una búsquedade la literatura utilizando una combinación de palabras clave (términos MeSH): “COVID”, “COVID-19”,“SARS-CoV-2”, “Urinary retention” y “Guillain-BarreSyndrome and Urodynamics”. Se realizaron búsquedas de artículos publicados hasta marzo de 2021. Todos los artículos identificados a partir de la búsquedabibliográfica fueron analizados, utilizando los criteriosPICOS (participantes, intervención, comparaciones,resultados, tipo de estudio) para evaluar la elegibilidadde los artículos. Se incluyeron tanto estudios prospectivos, retrospectivos, casos clínicos y revisiones sistemáticas publicadas.RESULTADOS: Se discuten los hallazgos en la literatura de las asociaciones entre COVID-19 y RAO, STUIy Síndrome de Guillain-Barré, así como sus posiblesmecanismos patogénicos. También se aporta un resumen de trabajos relevantes sobre hallazgos urodinámicos en pacientes con SGB. Los resultados seresumen en tablas anexas. Se aporta un caso de RAOasociado a COVID-19 y Síndrome de Guillain-Barrécon sus hallazgos urodinámicos.CONCLUSIÓN: A pesar de la asociación entre síntomas urinarios y SARS-CoV-2 no está bien descrita, parece que hay indicios de una posible asociación, al menos temporal entre la presentación de infección porcoronavirus SARS-Cov-2 y el desarrollo de un SGB

INTRODUCTION AND OBJECTIVE: The SARS-CoV-2 coronavirus infection has beenassociated with the development of the novo genitourinary symptoms and neurological symptomssecondary to peripheral nervous system damage.One of the neurological pathologies described associated with the infection has been Guillain-Barrésyndrome (GBS). We conducted a review of the literature on SARS-CoV-2 infection and its relationshipwith lower urinary tract symptoms (LUTS), such asurinary retention (AUR). Bladder alterations derived from neurological involvement by SARS-CoV-2,such as GBS, were also analyzed. An own case ispresented.MATERIAL AND METHODS: A literature searchwas performed using a combination of keywords(MeSH terms): “COVID”, “COVID-19”, “SARS-CoV-2”,“Urinary retention” and “Guillain-Barre Syndromeand Urodynamics”. We searched for articles published up to March 2021. All articles identified fromthe bibliographic search were analyzed, using thePICOS criteria (participants, intervention, comparisons, results, type of study) to assess the eligibility of the articles. Both prospective and retrospective studies, clinical cases and published systematicreviews were included.RESULTS: Findings in the academic literatureabout the associations between COVID-19 and RAO,LUTS and Guillain-Barré Syndrome are discussed,as well as their possible pathogenic mechanisms,A summary of relevant studies on urodynamic findings in GBS patients is also provided. The resultsare summarized in attached tables. A case of AURassociated with COVID-19 and Guillain-Barré Syndrome is provided, with its urodynamic findings.CONCLUSION: Although the association betweenurinary symptoms and SARS-CoV-2 is not well described, there seems to be evidence of a possibleassociation, at least temporary, between the presentation of SARS-Cov-2 infection and the development of GBS with secondary LUT neurophysiologyalterations.