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1.
Development ; 150(14)2023 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-37366052

RESUMO

Gene ontology analyses of high-confidence autism spectrum disorder (ASD) risk genes highlight chromatin regulation and synaptic function as major contributors to pathobiology. Our recent functional work in vivo has additionally implicated tubulin biology and cellular proliferation. As many chromatin regulators, including the ASD risk genes ADNP and CHD3, are known to directly regulate both tubulins and histones, we studied the five chromatin regulators most strongly associated with ASD (ADNP, CHD8, CHD2, POGZ and KMT5B) specifically with respect to tubulin biology. We observe that all five localize to microtubules of the mitotic spindle in vitro in human cells and in vivo in Xenopus. Investigation of CHD2 provides evidence that mutations present in individuals with ASD cause a range of microtubule-related phenotypes, including disrupted localization of the protein at mitotic spindles, cell cycle stalling, DNA damage and cell death. Lastly, we observe that ASD genetic risk is significantly enriched among tubulin-associated proteins, suggesting broader relevance. Together, these results provide additional evidence that the role of tubulin biology and cellular proliferation in ASD warrants further investigation and highlight the pitfalls of relying solely on annotated gene functions in the search for pathological mechanisms.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Humanos , Transtorno Autístico/genética , Transtorno Autístico/complicações , Transtorno Autístico/metabolismo , Cromatina/metabolismo , Transtorno do Espectro Autista/genética , Transtorno do Espectro Autista/patologia , Tubulina (Proteína)/metabolismo , Histonas/metabolismo , Microtúbulos/metabolismo , Fuso Acromático/metabolismo
3.
Arch. esp. urol. (Ed. impr.) ; 73(1): 32-40, ene.-feb. 2020. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-192892

RESUMO

OBJETIVO: Comparar los resultados perioperatorios y oncológicos a mediano plazo entre Cistectomía Radical Abierta (CRA) versus Cistectomía Radical Laparoscópica (CRL). MÉTODOS: Se realizó una cohorte retrospectiva, en la cual se incluyeron 182 pacientes sometidos de forma consecutiva a Cistectomía radical (CR) como tratamiento de Cáncer Vesical Músculo-Invasor entre el 2000 y el 2010 en un solo centro. La serie se dividió en dos grupos: CRA (n = 83) y CRL (n = 99). Todas las CR fueron realizadas por el mismo cirujano. Las complicaciones perioperatorias fueron registradas según la clasificación Clavien-Dindo. Se evaluó sobrevida libre de recurrencia, sobrevida cáncer-específica y asociación entre la técnica quirúrgica y recurrencia de enfermedad ajustando co-variables. RESULTADOS: Las características clínicas y patológicas fueron similares entre los dos grupos. Se observaron diferencias significativas en pérdida sanguínea estimada, tiempo operatorio y estadía hospitalaria entre los grupos (p < 0,05). Se presentaron 27 (32,5%) complicaciones Clavien I-II en el grupo abierto y 11 (11,1%) en el grupo laparoscópico. Cuatro complicaciones Clavien ≥ III (4,8%) se presentaron en el grupo CRA versus 7 (7%) en el grupo CRL (ns). La mediana de seguimiento para pacientes sin recurrencia fue de 23 meses (12-48). Un total de 60 pacientes (72,3%) presentaron recurrencia de algún tipo en el grupo de CRA y 59 pacientes (59,6%) en el de CRL. La incidencia acumulada de mortalidad cáncer-específica, estratificada por abordaje quirúrgico, fue similar entre ambos grupos (p.0,9). CONCLUSIONES: En base a nuestra experiencia, la CRL mostró ventajas en sangrado intraoperatorio y estadía hospitalaria, sin encontrar diferencias en complicaciones mayores entre ambos grupos. El control oncológico a mediano plazo en relación a recurrencia como a sobrevida cáncer-especifica no presenta diferencias significativas entre la CRL y CRA en el manejo del cáncer vesical músculo-invasor


OBJECTIVE: To compare peri-operative and mid-term oncological outcomes between Open radical cystectomy (ORC) and Laparoscopic radical cystectomy (LRC). METHODS: A retrospective cohort was assembled, in which 182 patients had been subjected consecutively to Radical Cystectomy (RC) for treatment of muscle-invasive bladder cancer (MIBC) between 2000 and 2010 in a single center. Two cohorts were included: ORC (n = 83) and LRC (n = 99). All the RCs were performed by the same surgeon. Perioperatory complications were registered according to Clavien-Dindo classification. We evaluated recurrence-free survival, cancer-specific survival and association between the surgical technique performed and disease recurrence, with co-variable adjustment. RESULTS: Clinical and pathologic characteristics were similar for both groups. Significant differences were observed between the two groups, regarding blood loss, operative time and hospitalization days (p < 0.04). The ORC group displayed 27 (32.5%) Clavien I-II cases, vs. 11 (11.1%) in the LRC group. Four Clavien≥III (4.8%) complications were reported in the ORC, vs. 7 (7%) in the LRC group (NS). Mean follow-up time for patients without recurrence was 23 months (12-48). A total of 60 patients (72.3%) showed recurrence in the ORC group, compared to 59 (59.6%) in the LRC group. Cumulative cancer-specific mortality index, stratified by surgical technique, was similar between both groups (p.-0.9) CONCLUSIONS: Based on our experience, LRC showed advantages in intraoperative bleeding and length of hospital stay with no difference in major complications between both groups. Mid-term oncological control, regarding local recurrence and cancer-specific survival, showed no significant difference between LRC and ORC in the management of MIBC


Assuntos
Humanos , Masculino , Idoso , Cistectomia/métodos , Laparoscopia , Neoplasias da Bexiga Urinária/cirurgia , Recidiva Local de Neoplasia , Estudos Retrospectivos , Resultado do Tratamento
4.
Arch Esp Urol ; 73(1): 32-40, 2020 Jan.
Artigo em Espanhol | MEDLINE | ID: mdl-31950921

RESUMO

OBJECTIVE: To compare peri-operative and mid-term oncological outcomes between Open radical cystectomy (ORC) and Laparoscopic radical cystectomy (LRC). METHODS: A retrospective cohort was assembled, in which 182 patients had been subjected consecutively to Radical Cystectomy (RC) for treatment of muscle-invasive bladder cancer (MIBC) between 2000 and 2010 in a single center. Two cohorts were included: ORC (n=83) and LRC (n=99). All the RCs were performed by the same surgeon. Perioperatory complications were registered according to Clavien-Dindo classification. We evaluated recurrence-free survival, cancer-specific survival and association between the surgical technique performed and disease recurrence, with co-variable adjustment. RESULTS: Clinical and pathologic characteristics were similar for both groups. Significant differences were observed between the two groups, regarding blood loss, operative time and hospitalization days (p<0.04). The ORC group displayed 27 (32.5%) Clavien I-II cases, vs. 11 (11.1%) in the LRC group. Four Clavien≥III (4.8%) complications were reported in the ORC, vs. 7 (7%) in the LRC group (NS). Mean follow-up time for patients without recurrence was 23 months (12-48). A total of 60 patients (72.3%) showed recurrence in the ORC group, compared to 59 (59.6%) in the LRC group. Cumulative cancer-specific mortality index, stratified by surgical technique, was similar between both groups (p.-0.9). CONCLUSIONS: Based on our experience, LRC showed advantages in intraoperative bleeding and length of hospital stay with no difference in major complications between both groups. Mid-term oncological control, regarding local recurrence and cancer-specific survival, showed no significant difference between LRC and ORC in the management of MIBC.


OBJETIVO: Comparar los resultados perioperatorios y oncológicos a mediano plazo entre Cistectomía Radical Abierta (CRA) versus Cistectomía Radical Laparoscópica (CRL).MÉTODOS: Se realizó una cohorte retrospectiva, en la cual se incluyeron 182 pacientes sometidos de forma consecutiva a Cistectomía radical (CR) como tratamiento de Cáncer Vesical Músculo-Invasor entre el 2000 y el 2010 en un solo centro. La serie se dividió en dos grupos: CRA (n=83) y CRL (n=99). Todas las CR fueron realizadas por el mismo cirujano. Las complicaciones perioperatorias fueron registradas según la clasificación Clavien-Dindo. Se evaluó sobrevida libre de recurrencia, sobrevida cáncer-específica y asociación entre la técnica quirúrgica y recurrencia de enfermedad ajustando co-variables. RESULTADOS: Las características clínicas y patológicas fueron similares entre los dos grupos. Se observaron diferencias significativas en pérdida sanguínea estimada, tiempo operatorio y estadía hospitalaria entre los grupos (p<0,05). Se presentaron 27 (32,5%) complicaciones Clavien I-II en el grupo abierto y 11 (11,1%) en el grupo laparoscópico. Cuatro complicaciones Clavien ≥III (4,8%) se presentaron en el grupo CRA versus 7 (7%) en el grupo CRL (ns). La mediana de seguimiento para pacientes sin recurrencia fue de 23 meses (12-48). Un total de 60 pacientes (72,3%) presentaron recurrencia de algún tipo en el grupo de CRA y 59 pacientes (59,6%) en el de CRL. La incidencia acumulada de mortalidad cáncer-específica, estratificada por abordaje quirúrgico, fue similar entre ambos grupos (p.0,9). CONCLUSIONES: En base a nuestra experiencia, la CRL mostró ventajas en sangrado intraoperatorio y estadía hospitalaria, sin encontrar diferencias en complicaciones mayores entre ambos grupos. El control oncológico a mediano plazo en relación a recurrencia como a sobrevida cáncer-especifica no presenta diferencias significativas entre la CRL y CRA en el manejo del cáncer vesical músculo-invasor.


Assuntos
Cistectomia , Laparoscopia , Neoplasias da Bexiga Urinária , Cistectomia/métodos , Humanos , Recidiva Local de Neoplasia , Estudos Retrospectivos , Resultado do Tratamento , Neoplasias da Bexiga Urinária/cirurgia
5.
Oncotarget ; 8(27): 43692-43708, 2017 07 04.
Artigo em Inglês | MEDLINE | ID: mdl-28620146

RESUMO

Knockdown of antisense noncoding mitochondrial RNAs (ASncmtRNAs) induces apoptosis in several human and mouse tumor cell lines, but not normal cells, suggesting this approach for a selective therapy against different types of cancer. Here we show that in vitro knockdown of murine ASncmtRNAs induces apoptotic death of mouse renal adenocarcinoma RenCa cells, but not normal murine kidney epithelial cells. In a syngeneic subcutaneous RenCa model, treatment delayed and even reversed tumor growth. Since the subcutaneous model does not reflect the natural microenviroment of renal cancer, we used an orthotopic model of RenCa cells inoculated under the renal capsule. These studies showed inhibition of tumor growth and metastasis. Direct metastasis assessment by tail vein injection of RenCa cells also showed a drastic reduction in lung metastatic nodules. In vivo treatment reduces survivin, N-cadherin and P-cadherin levels, providing a molecular basis for metastasis inhibition. In consequence, the treatment significantly enhanced mouse survival in these models. Our results suggest that the ASncmtRNAs could be potent and selective targets for therapy against human renal cell carcinoma.


Assuntos
Carcinoma de Células Renais/genética , Carcinoma de Células Renais/patologia , Neoplasias Renais/genética , Neoplasias Renais/patologia , RNA Antissenso , RNA não Traduzido , RNA , Animais , Apoptose/genética , Carcinoma de Células Renais/metabolismo , Carcinoma de Células Renais/mortalidade , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células/genética , Modelos Animais de Doenças , Regulação Neoplásica da Expressão Gênica , Técnicas de Silenciamento de Genes , Neoplasias Renais/metabolismo , Neoplasias Renais/mortalidade , Camundongos , Metástase Neoplásica , RNA Mitocondrial , Ensaios Antitumorais Modelo de Xenoenxerto
7.
World J Urol ; 35(1): 57-65, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27137994

RESUMO

PURPOSE: To describe the perioperative and oncology outcomes in a series of laparoscopic or robotic partial nephrectomies (PN) for renal tumors treated in diverse institutions of Hispanic America from the beginning of their minimally invasive (MI) PN experience through December 2014. METHODS: Seventeen institutions participated in the CAU generated a MI PN database. We estimated proportions, medians, 95 % confidence intervals, Kaplan-Meier curves, multivariate logistic and Cox regression analyses. Clavien-Dindo classification was used. RESULTS: We evaluated 1501 laparoscopic (98 %) or robotic (2 %) PNs. Median age: 58 years. Median surgical time, warm ischemia and intraoperative bleeding were 150, 20 min and 200 cc. 81 % of the lesions were malignant, with clear cell histology being 65 % of the total. Median maximum tumor diameter is 2.7 cm, positive margin is 8.2 %, and median hospitalization is 3 days. One or more postoperative complication was recorded in 19.8 % of the patients: Clavien 1: 5.6 %; Clavien 2: 8.4 %; Clavien 3A: 1.5 %; Clavien 3B: 3.2 %; Clavien 4A: 1 %; Clavien 4B: 0.1 %; Clavien 5: 0 %. Bleeding was the main cause of a reoperation (5.5 %), conversion to radical nephrectomy (3 %) or open partial nephrectomy (6 %). Transfusion rate is 10 %. In multivariate analysis, RENAL nephrometry score was the only variable associated with complications (OR 1.1; 95 % CI 1.02-1.2; p = 0.02). Nineteen patients presented disease progression or died of disease in a median follow-up of 1.37 years. The 5-year progression or kidney cancer mortality-free rate was 94 % (95 % CI 90, 97). Positive margins (HR 4.98; 95 % CI 1.3-19; p = 0.02) and females (HR 5.6; 95 % CI 1.7-19; p = 0.005) were associated with disease progression or kidney cancer mortality after adjusting for maximum tumor diameter. CONCLUSION: Laparoscopic PN in these centers of Hispanic America seem to have acceptable perioperative complications and short-term oncologic outcomes.


Assuntos
Adenoma Oxífilo/cirurgia , Angiomiolipoma/cirurgia , Carcinoma de Células Renais/cirurgia , Neoplasias Renais/cirurgia , Nefrectomia/métodos , Complicações Pós-Operatórias/epidemiologia , Adenoma Oxífilo/patologia , Idoso , Angiomiolipoma/patologia , Perda Sanguínea Cirúrgica , Carcinoma de Células Renais/patologia , Conversão para Cirurgia Aberta , Bases de Dados Factuais , Feminino , Laparoscopia Assistida com a Mão/métodos , Humanos , Estimativa de Kaplan-Meier , Neoplasias Renais/patologia , Laparoscopia/métodos , Tempo de Internação/estatística & dados numéricos , Modelos Logísticos , Masculino , Margens de Excisão , México , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Análise Multivariada , Estadiamento de Neoplasias , Duração da Cirurgia , Modelos de Riscos Proporcionais , Procedimentos Cirúrgicos Robóticos/métodos , América do Sul , Espanha , Carga Tumoral , Isquemia Quente
8.
Rev. chil. urol ; 82(1): 8-9, 2017.
Artigo em Espanhol | LILACS | ID: biblio-905672

RESUMO

Introducción. El beneficio de la linfadenectomía en el cáncer de próstata sigue siendo controversial. Es el único procedimiento que permite un estadiaje anatomopatológico más preciso. Antiguamente se indicaba en pacientes de riesgo intermedio o mayor. Actualmente utilizamos el Score de CAPRA sobre 2 para indicar el procedimiento con el fin de seleccionar de mejor manera los pacientes que se beneficiarían de este procedimiento. Objetivo. Analizar la utilidad de CAPRA-Score para indicar la linfadenectomía. Pacientes y Métodos. Estudio prospectivo de carácter descriptivo. De un universo de 155 Pacientes sometidos a prostatectomía radical laparoscópica entre 2003-2013 por un único cirujano, se analizaron 34 pacientes a los que se le realizó linfadenectomía . Los datos se recopilaron en el momento de la cirugía y controles postoperatorios. Se agruparon datos: edad, PSA, Estadio Clínico, Gleason y porcentaje de cilindros (+) en biopsia TR. Se agruparon según indicación por Riesgo o CAPRA-S y se compararon los resultados obtenidos en la histología de los ganglios extraídos (linfadenectomías +). Los datos se analizaron considerando p<0,05 estadísticamente significativo según prueba de T de Student. Resultados. Se incluyeron en total 34 pacientes. Hasta el año 2010 un total de 23 linfadenectomía indicadas a grupo de riesgo intermedio-alto, el 78 por ciento (18) indicado por Gleason. Se sacó en promedio 12 ganglios por paciente, 72 por ciento linfadenectomía ampliadas. Ningún paciente tuvo ganglios (+). Desde el año 2011 un total de 11 linfadenectomía por CAPRA-Score >2, sacándose promedio 15 ganglios, 9 fueron linfadenectomías ampliadas. Se obtuvo 18 ciento linfadenectomías (+) para compromiso metastásico. Conclusiones. De los pacientes previo a CAPRA-Score, un 17por ciento pacientes estarían sobreindicados según éste y coincide con la negatividad del resultado histológico. Hubo diferencia estadísticamente significativa en la aparición de ganglios (+) en pacientes que se aplicó CAPRA-Score. (P<0.05). Según la serie de pacientes presentados, CAPRA-Score seleccionaría mejor los pacientes que se beneficiarían con una linfadenectomía, sin embargo se requieren estudios de mayor cantidad de pacientes.AU


INTRODUCTION Despite the good oncological results of radical prostatectomy (PR) in the treatment of prostate cancer (PCa), more than 35 pertcent of patients will present with biochemical recurrence (RB) after surgery. In these patients, pelvic and / or distal nodes may represent the site of recurrence of the disease. Our objective is to present our surgical technique of aortoiliac robotic lymphadenectomy (LAO) in prostate cancer.AU


Assuntos
Masculino , Excisão de Linfonodo , Neoplasias da Próstata , Filme e Vídeo Educativo
10.
Prostate Int ; 4(2): 61-4, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-27358846

RESUMO

BACKGROUND: Despite significant developments in transurethral surgery for benign prostatic hyperplasia, simple prostatectomy remains an excellent option for patients with severely enlarged glands. The objective is to describe our results of robot-assisted simple prostatectomy (RASP) with a modified urethrovesical anastomosis (UVA). METHODS: From May 2011 to February 2014, RASP with UVA was performed in 34 patients by a single surgeon (O.C.) using the da Vinci S-HD surgical system. The UVA was performed between the bladder neck and urethral margin using the Van Velthoven technique. Demographic, perioperative, and outcome data were recorded. Complications were recorded with the Clavien-Dindo system. RESULTS: The mean (standard deviation) age was 68 years (62-74 years). The median preoperative prostate volume (interquartile range) was 117 cc (99-146 cc). Operative time was 96 minutes (78-126 minutes), estimate blood loss was 200 mL (100-300 mL), and two (5.8%) patients required a blood transfusion. No conversion to open surgery was needed. The median specimen weight on pathological examination was 76 g (58-100 g). The average hospital stay was 2.2 days (1-4 days) and average Foley catheter time was 4.6 days (4-6 days). No intraoperative complications were recorded. There were seven (20.5%) postoperative complications, most of them Clavien less than or equal to Grade II. CONCLUSION: The results of our study show that RASP with UVA is a feasible, secure, and reproducible procedure with low morbidity. Additional series with larger patient cohorts are needed to validate this approach.

11.
Urology ; 91: 104-10, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-26948530

RESUMO

OBJECTIVE: To report a comparative analysis of laparoscopic simple prostatectomy (LSP) vs robot-assisted simple prostatectomy (RASP). PATIENTS AND METHODS: Consecutive cases of LSP and RASP done between 2003 and 2014 at 3 participating institutions were included in this retrospective analysis. The effectiveness of the two procedures was determined by performing a paired analysis of main functional and surgical outcomes. A multivariate analysis was also conducted to determine the factors predictive of "trifecta" outcome (combination of International Prostate Symptom Score <8, Qmax > 15 mL/second, and no perioperative complications). RESULTS: A total of 319 patients underwent minimally invasive simple prostatectomy at the participating institutions over the study period. Total prostate volume was larger in the RASP group (median 118.5 mL vs 109 mL, P = .02). Median estimated blood loss tended to be higher for LSP (300 mL vs 350 mL, P = .07). There was no difference in terms of catheterization time (P = .3) and hospital stay (P = .42). A higher rate of overall postoperative complications was recorded in the RASP group (17.7% vs 5.3%), but rate of major complications was not significantly different between the two techniques (2.3 vs 2.1, P = .6). Subjective and objective parameters significantly improved for both LSP and RASP. On multivariable analysis, only two factors were associated with likelihood of obtaining a favorable (trifecta) outcome: age (odds ratio: 0.94; P = .03) and body mass index (odds ratio: 0.84; P = .03). CONCLUSION: Both LSP and RASP can be regarded as safe and effective minimally invasive surgical treatments for bladder outlet obstruction due to large prostate glands.


Assuntos
Laparoscopia , Prostatectomia/métodos , Hiperplasia Prostática/cirurgia , Procedimentos Cirúrgicos Robóticos , Obstrução do Colo da Bexiga Urinária/cirurgia , Idoso , Humanos , Masculino , Hiperplasia Prostática/complicações , Estudos Retrospectivos , Resultado do Tratamento , Obstrução do Colo da Bexiga Urinária/etiologia
12.
J Laparoendosc Adv Surg Tech A ; 25(7): 592-4, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26134069

RESUMO

Pelvic exenteration is used in the treatment of several pelvic cancers, including those of the rectum, uterus, and bladder. We report the first case of robotic pelvic exenteration for the treatment of symptomatic prostate cancer involving the rectum and bladder. A six-port transperitoneal robotic approach was used. Bilateral extended lymphadenectomy up to the inferior mesenteric artery was performed. The rectum and bladder were removed en bloc, and a double-barrel anastomosis was then performed with both ureters being connected to the lower opening of the colostomy. Operative time was 249 minutes, and estimated blood loss was 600 mL. No intraoperative or postoperative complications were recorded. Biopsy of the rectum and bladder showed prostatic adenocarcinoma with a Gleason score of 9 (5+4), and 1 of 17 nodes was positive for cancer. Postoperative prostate-specific antigen level was 1.24 ng/mL. The patient is already 19 months after surgery with optimal quality of life. Thus pelvic exenteration is a feasible alternative for highly symptomatic prostate cancer involving adjacent pelvic organs.


Assuntos
Adenocarcinoma/cirurgia , Excisão de Linfonodo , Exenteração Pélvica/métodos , Neoplasias da Próstata/cirurgia , Neoplasias Retais/cirurgia , Procedimentos Cirúrgicos Robóticos , Neoplasias da Bexiga Urinária/cirurgia , Adenocarcinoma/secundário , Idoso , Humanos , Metástase Linfática , Masculino , Duração da Cirurgia , Exenteração Pélvica/efeitos adversos , Pelve , Neoplasias da Próstata/patologia , Neoplasias Retais/secundário , Neoplasias da Bexiga Urinária/secundário
13.
Medwave ; 15(3): e6115, 2015 Apr 06.
Artigo em Espanhol | MEDLINE | ID: mdl-25919660

RESUMO

For six decades, it has been a part of the conventional medical wisdom that higher levels of testosterone increase the risk of prostate cancer. This belief is mostly derived from the well-documented regression of prostate cancer after surgical or pharmacological castration. However, there is an absence of scientific data supporting the concept that higher testosterone levels are associated with an increased risk of prostate cancer. Moreover, men with hypogonadism have substantial rates of prostate cancer in prostatic biopsies, suggesting that low testosterone has no protective effect against the development of prostate cancer. Moreover, prostate cancer rate is higher in elderly patients when hormonal levels are low. These results argue against an increased risk of prostate cancer with testosterone replacement therapy.


Por casi seis décadas ha sido parte de la cultura médica en general, que los niveles altos de testosterona incrementan el riesgo de padecer o agravar un cáncer de próstata. Esta creencia se ha derivado fundamentalmente de la bien documentada regresión del cáncer de próstata luego de la castración médica o quirúrgica. Sin embargo, no existe evidencia científica que apoye la idea de que niveles altos de testosterona están asociados con un incremento del riesgo de cáncer de próstata. Más aún, los hombres con hipogonadismo tienen una tasa substancialmente alta de cáncer de próstata detectado por biopsia, lo que sugiere que los niveles bajos de testosterona no tienen un efecto protector en el desarrollo de cáncer de próstata y, además, la tasa de cáncer de próstata es más alta en los pacientes de edades avanzadas cuando sus niveles hormonales son más bajos. Estos argumentos tienden a demostrar que no existiría un incremento del riesgo de padecer un cáncer de próstata asociado a la terapia de reemplazo con testosterona.


Assuntos
Terapia de Reposição Hormonal/métodos , Neoplasias da Próstata/cirurgia , Testosterona/administração & dosagem , Idoso , Terapia de Reposição Hormonal/efeitos adversos , Humanos , Hipogonadismo/tratamento farmacológico , Masculino , Orquiectomia/métodos , Neoplasias da Próstata/epidemiologia , Fatores de Risco , Testosterona/efeitos adversos
14.
Urol Int ; 94(1): 88-92, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25196990

RESUMO

OBJECTIVE: To describe our surgical experience and clinical outcome in laparoscopic radical nephrectomy (LRN) for renal cell carcinoma (RCC) with level 1 renal vein tumor thrombus. PATIENTS AND METHODS: 11 patients with RCC level 1 renal vein tumor thrombus were treated by LRN plus thrombectomy. The mean age was 66.8 years (SD ±11.313); the mean body mass index was 24.76 (SD ±5.091). In all cases, the surgical technique was defined by tumor characteristics and the surgeon's preferences. RESULTS: Surgery was technically successful in all 11 patients. A hand-assisted approach was performed in 3 patients, while pure laparoscopy was used in 8. The mean surgical time was 108.3 min (SD ±28.284); the mean estimated blood loss was 108.33 ml (SD ±106.066); the average hospital stay was 2.8 days (SD ±0.707). There was 1 intraoperative complication (splenic laceration) that was managed laparoscopically. Pathologic examination confirmed RCC in all cases. There were no positive surgical margins. With a mean follow-up of 29 months (27-39), 2 patients had a recurrence. CONCLUSION: This report provides further evidence of the technical feasibility, safety and oncologic adequacy of the laparoscopic approach in RCC with level 1 renal vein involvement. A longer follow-up and multi-institutional studies are needed to adequately evaluate its potential oncologic benefit.


Assuntos
Carcinoma de Células Renais/cirurgia , Laparoscopia Assistida com a Mão , Neoplasias Renais/cirurgia , Laparoscopia/métodos , Nefrectomia/métodos , Veias Renais/cirurgia , Trombectomia/métodos , Trombose Venosa/cirurgia , Idoso , Perda Sanguínea Cirúrgica/prevenção & controle , Carcinoma de Células Renais/complicações , Carcinoma de Células Renais/diagnóstico por imagem , Carcinoma de Células Renais/patologia , Estudos de Viabilidade , Feminino , Laparoscopia Assistida com a Mão/efeitos adversos , Humanos , Neoplasias Renais/complicações , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/patologia , Laparoscopia/efeitos adversos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Nefrectomia/efeitos adversos , Duração da Cirurgia , Flebografia/métodos , Veias Renais/diagnóstico por imagem , Veias Renais/patologia , Estudos Retrospectivos , Trombectomia/efeitos adversos , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Trombose Venosa/etiologia , Trombose Venosa/patologia
15.
Eur Urol ; 68(1): 86-94, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25484140

RESUMO

BACKGROUND: Laparoscopic and robotic simple prostatectomy (SP) have been introduced with the aim of reducing the morbidity of the standard open technique. OBJECTIVE: To report a large multi-institutional series of minimally invasive SP (MISP). DESIGN, SETTING, AND PARTICIPANTS: Consecutive cases of MISP done for the treatment of bladder outlet obstruction (BOO) due to benign prostatic enlargement (BPE) between 2000 and 2014 at 23 participating institutions in the Americas and Europe were included in this retrospective analysis. INTERVENTION: Laparoscopic or robotic SP. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Demographic data and main perioperative outcomes were gathered and analyzed. A multivariable analysis was conducted to identify factors associated with a favorable trifecta outcome, arbitrarily defined as a combination of the following postoperative events: International Prostate Symptom Score <8, maximum flow rate >15ml/s, and no perioperative complications. RESULTS AND LIMITATIONS: Overall, 1330 consecutive cases were analyzed, including 487 robotic (36.6%) and 843 laparoscopic (63.4%) SP cases. Median overall prostate volume was 100ml (range: 89-128). Median estimated blood loss was 200ml (range: 150-300). An intraoperative transfusion was required in 3.5% of cases, an intraoperative complication was recorded in 2.2% of cases, and the conversion rate was 3%. Median length of stay was 4 d (range: 3-5). On pathology, prostate cancer was found in 4% of cases. Overall postoperative complication rate was 10.6%, mostly of low grade. At a median follow-up of 12 mo, a significant improvement was observed for subjective and objective indicators of BOO. Trifecta outcome was not significantly influenced by the type of procedure (robotic vs laparoscopic; p=0.136; odds ratio [OR]: 1.6; 95% confidence interval [CI], 0.8-2.9), whereas operative time (p=0.01; OR: 0.9; 95% CI, 0.9-1.0) and estimated blood loss (p=0.03; OR: 0.9; 95% CI, 0.9-1.0) were the only two significant factors. Retrospective study design, lack of a control arm, and limited follow-up represent major limitations of the present analysis. CONCLUSIONS: This study provides the largest outcome analysis reported for MISP for BOO/BPE. These findings confirm that SP can be safely and effectively performed in a minimally invasive fashion in a variety of healthcare settings in which specific surgical expertise and technology is available. MISP can be considered a viable surgical treatment in cases of large prostatic adenomas. The use of robotic technology for this indication can be considered in centers that have a robotic program in place for other urologic indications. PATIENT SUMMARY: Analysis of a large data set from multiple institutions shows that surgical removal of symptomatic large prostatic adenomas can be carried out with good outcomes by using robot-assisted laparoscopy.


Assuntos
Adenocarcinoma/cirurgia , Adenoma/cirurgia , Complicações Pós-Operatórias/epidemiologia , Próstata/cirurgia , Hiperplasia Prostática/cirurgia , Neoplasias da Próstata/cirurgia , Obstrução do Colo da Bexiga Urinária/cirurgia , Idoso , Estudos de Coortes , Europa (Continente)/epidemiologia , Humanos , Laparoscopia , Masculino , Pessoa de Meia-Idade , Tamanho do Órgão , Próstata/patologia , Prostatectomia , Hiperplasia Prostática/complicações , Estudos Retrospectivos , Procedimentos Cirúrgicos Robóticos , Estados Unidos/epidemiologia , Obstrução do Colo da Bexiga Urinária/etiologia
16.
Arch Esp Urol ; 67(9): 759-63, 2014 Nov.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-25407149

RESUMO

OBJECTIVES: Chylous ascites and high-output chylous fistula are rare complications following abdominal or pelvic surgery. We report a series of five cases that occurred after pelvic lymph node dissection for urological cancer, in addition to their clinical presentation, diagnosis, and treatment. METHODS: The series comprises five patients; four men in whom robotic radical prostatectomy and extended pelvic lymphadenectomy were performed, and one woman with an infiltrating bladder cancer that underwent robotic anterior pelvic exenteration and extended pelvic lymphadenectomy. The first four patients developed chylous ascites, and the female patient a high-output chylous fistula. RESULTS: In all cases, diagnosis of chylous ascites or chylous fistula was confirmed, and they were handled in varied ways, from observation to medical treatment, paracentesis, and surgery, according to their clinical presentation and evolution. We describe a simple treatment algorithm. CONCLUSION: This rare surgical complication requires a grade of suspicion and a defined treatment according to the probability of the medical compromise. Prevention is an important element. This series, according to our knowledge, is the first description in patients undergoing robotic extended pelvic lymphadenectomy.


Assuntos
Ascite Quilosa , Fístula , Excisão de Linfonodo , Neoplasias Urológicas , Feminino , Humanos , Masculino , Complicações Pós-Operatórias
17.
Arch Esp Urol ; 67(3): 277-83, 2014 Apr.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-24840593

RESUMO

OBJECTIVES: Local recurrence after a correct surgical technique and absence of distant metastasis is a rare occurrence after radical nephrectomy. Surgical resection remains the standard management for this pathological setting. Nevertheless controversy persists over surgical approach and adjuvant treatments. METHODS: We report on perioperative outcomes of a small multi-institutional series of patients with fully laparoscopic management of isolated renal fossa recurrence following open radical nephrectomy. RESULTS: All patients underwent full laparoscopic surgery. Mean operative time was 140 minutes (range 75 to 240 minutes). Only one patient had a Clavien Grade IIIa complication. Mean hospital stay was 3 days (range 2 to 4 days). Out of the six patients, 5 had a mean follow-up of 20 months (range 9 to 32 months). Only one of these patients evolved with distant metastasis after surgery. CONCLUSIONS: Laparoscopic resection of local recurrence after open radical nephrectomy is a challenging but reproducible technique. There is still no consensus or an operative protocol for this clinical setting. However, as long as surgery is kept within the possibilities, a laparoscopic approach should be sought.


Assuntos
Carcinoma de Células Renais/secundário , Neoplasias Renais/cirurgia , Laparoscopia/métodos , Recidiva Local de Neoplasia/cirurgia , Nefrectomia , Neoplasias Retroperitoneais/secundário , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Renais/cirurgia , Diafragma/lesões , Feminino , Humanos , Complicações Intraoperatórias , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Neoplasias Retroperitoneais/cirurgia , Resultado do Tratamento
18.
Arch Esp Urol ; 67(2): 181-4, 2014 Mar.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-24691040

RESUMO

OBJECTIVES: To present a series of four cases of Gartner cysts and their clinical presentation. A bibliographic review was performed. METHODS: The series consisted of 4 women, mean age 39, who complained of a bulge at the anterior vaginal wall, associated with a variety of urinary symptoms. RESULTS: Surgical removal was performed in all cases. The pathological studies confirmed the diagnosis of Gartner cyst. There were no recurrences in the long-term follow-up. CONCLUSION: Vaginal wall cysts are rarely found in common urological practice. Gartner cysts arise as a consequence of the Gartner duct (mesonephric remainder) obstruction and they are located in the anterior or lateral wall of the vagina. They may be associated with renal and ureteral anomalies. Differential diagnosis with other vaginal cysts can only be made by histological studies. The correct treatment is the entire removal through a vaginal approach.


Assuntos
Cistos/terapia , Doenças Vaginais/cirurgia , Ductos Mesonéfricos/cirurgia , Adulto , Cateterismo , Cistos/patologia , Feminino , Procedimentos Cirúrgicos em Ginecologia/métodos , Humanos , Doenças Vaginais/patologia , Ductos Mesonéfricos/patologia
19.
Arch. esp. urol. (Ed. impr.) ; 67(3): 277-283, abr. 2014. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-121831

RESUMO

OBJETIVO: La recurrencia local frente a una correcta técnica quirúrgica y ante la ausencia de metástasis a distancia es de rara presentación luego de la nefrectomía radical. El tratamiento estándar para esta presentación clínica sigue siendo la resección quirúrgica. MÉTODOS: En este trabajo, reportamos una pequeña serie de pacientes con manejo completo laparoscópico de recurrencia de carcinoma renal luego de nefrectomía radical convencional. RESULTADOS: En todos los pacientes se realizo un abordaje laparoscópico con excelentes resultados. El tiempo operatorio promedio fue de 140 minutos (rango 75 a 240 minutos). Solo un paciente tuvo una complicación grado III a de la clasificación de Clavien de complicaciones quirúrgicas. El tiempo promedio de internación fue de 3 días (rango 2 a 4 días). De los 6 pacientes, 5 tuvieron un seguimiento de 20 meses (rango 9 a 32 meses). Solo uno de ellos evolucionó con metástasis a distancia luego de la cirugía. CONCLUSIONES: La resección laparoscópica de las recidiva local luego de la nefrectomía radical abierta es una técnica demandante pero reproducible. Aún no existe consenso o un protocolo operativo para esta situación, no obstante mientras que la cirugía sea requerida, el abordaje laparoscópico es una opción válida y debe ser intentado


OBJECTIVES: Local recurrence after a correct surgical technique and absence of distant metastasis is a rare occurrence after radical nephrectomy. Surgical resection remains the standard management for this pathological setting. Nevertheless controversy persists over surgical approach and adjuvant treatments. METHODS: We report on perioperative outcomes of a small multi-institutional series of patients with fully laparoscopic management of isolated renal fossa recurrence following open radical nephrectomy. RESULTS: All patients underwent full laparoscopic surgery. Mean operative time was 140 minutes (range 75 to 240 minutes). Only one patient had a Clavien Grade III a complication. Mean hospital stay was 3 days (range 2 to 4 days). Out of the six patients, 5 had a mean follow-up of 20 months (range 9 to 32 months). Only one of these patients evolved with distant metastasis after surgery. CONCLUSIONS: Laparoscopic resection of local recurrence after open radical nephrectomy is a challenging but reproducible technique. There is still no consensus or an operative protocol for this clinical setting. However, as long as surgery is kept within the possibilities, a laparoscopic approach should be sought


Assuntos
Humanos , Laparoscopia/métodos , Carcinoma de Células Renais/cirurgia , Neoplasias Renais/cirurgia , Nefrectomia/métodos , Recidiva Local de Neoplasia/cirurgia , Complicações Pós-Operatórias/cirurgia
20.
Arch. esp. urol. (Ed. impr.) ; 67(2): 181-184, mar. 2014. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-119918

RESUMO

OBJETIVO: Presentar una serie de 4 casos de quiste de Gartner, mostrando su forma de presentación y realizando una revisión de la literatura. MÉTODO: La serie está constituida por 4 mujeres, con una edad media de 39 años, cuyo motivo de consulta fue la presencia de un aumento de volumen de pared vaginal anterior y diversa sintomatología urinaria. RESULTADOS: Se realizó la extirpación quirúrgica en todos los casos, sin complicaciones. En los cuatro casos se confirmó el diagnostico anátomo-patológico de quiste de Gartner. No hubo recidivas en el largo plazo. CONCLUSIÓN: Los quistes de la pared vaginal constituyen una entidad poco frecuente dentro de la práctica urológica habitual. Los quistes de Gartner se originan como consecuencia de la obstrucción del conducto de Gartner, remanente mesonéfrico, y se localizan en la pared anterior o lateral de la vagina. Puede asociarse a anomalías renales y ureterales. El diagnostico diferencial con otros quistes vaginales solo puede realizarse mediante el estudio histológico, siendo el tratamiento de elección la extirpación por vía vaginal


OBJECTIVES: To present a series of four cases of Gartner cysts and their clinical presentation. A bibliographic review was performed. METHODS: The series consisted of 4 women, mean age 39, who complained of a bulge at the anterior vaginal wall, associated with a variety of urinary symptoms. RESULTS: Surgical removal was performed in all cases. The pathological studies confirmed the diagnosis of Gartner cyst. There were no recurrences in the long-term follow-up. CONCLUSION: Vaginal wall cysts are rarely found in common urological practice. Gartner cysts arise as a consequence of the Gartner duct (mesonephric remainder) obstruction and they are located in the anterior or lateral wall of the vagina. They may be associated with renal and ureteral anomalies. Differential diagnosis with other vaginal cysts can only be made by histological studies. The correct treatment is the entire removal through a vaginal approach


Assuntos
Humanos , Feminino , Adulto , Ductos Mesonéfricos/patologia , Cistos/patologia , Doenças Vaginais/diagnóstico , Diagnóstico Diferencial
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