Analysis of Trifecta Results in a Single-Center Experience with Retroperitoneoscopic Partial Nephrectomy: An Observational Study

Objective: To analyze the trifecta results in patients with T1a and T1b renal tumors treated with retroperitoneoscopic partial nephrectomy (RPN). Material and Methods: A cross-sectional prospective observational study was conducted on 106 patients with cT1 renal tumor submitted to RPN. Trifecta was reported as no ≥ 2 Clavien-Dindo complications, warm ischemia time (WIT) ≤ 25 minutes, ≤ 15% postoperative ΔGFR, and nonpositive margins. Results: The mean age was 58 years (SD ± 12). The median (Q1; Q3) tumor size was 3.5 (2.2; 4.5) cm. Of the treated patients, 33% had a ventral tumor. R.E.N.A.L nephrometry score was low complexity in 54% of cases and high complexity in 4%. WIT median (Q1; Q3) was 20 (14; 23) minutes. Estimated blood loss median (Q1; Q3) was 50 (0; 100) ml. There were no conversions to open surgery. ΔGFR was >15% in 17.5% of patients. There were no postoperative complications in 84% of cases. Nonpositive margins were observed. Sixty-eight percent were pT1a and 32% were pT1b. Seventy-two percent of patients presented trifecta. A statistically significant difference was found between trifecta and tumor size (3 cm vs. 4.4 cm; p<0.001), complexity (low complexity 90% vs. intermediate complexity 56%; p<0.0001), and pT (T1a 81% vs. T1b 53%; p<0.003). Conclusion: RPN is a safe and effective treatment modality for T1a and T1b renal tumors. Trifecta rate was 72%. Tumor size, tumor complexity, and pT were found to be an associated factor for trifecta (AU)

Objetivo: Analizar los resultados trifecta en pacientescon tumores renales T1a y T1b tratados con nefrectomíaparcial retroperitoneoscópica (NPR).Material y Métodos: Se realizó un estudio observacional prospectivo de corte transversal en 106 pacientescon tumor renal cT1 sometidos a NPR. Se informó Trifectacomo no complicaciones de Clavien-Dindo ≥ 2, tiempo deisquemia caliente (WIT) ≤ 25 minutos, ∆GFR posoperatoria ≤ 15 % y márgenes quirúrgicos negativos.Resultados: La edad media fue de 58 años (DE ± 12).La mediana (Q1; Q3) del tamaño del tumor fue de 3,5 (2,2;4,5) cm. De los pacientes tratados, el 33% tenía un tumorventral. El puntaje de nefrometría R.E.N.A.L fue de bajacomplejidad en el 54% de los casos y de alta complejidaden el 4%. La mediana de WIT (Q1; Q3) fue de 20 (14; 23)minutos. La mediana de pérdida de sangre estimada (Q1;Q3) fue de 50 (0; 100) ml. No hubo conversiones a cirugíaabierta. ∆GFR fue >15 % en el 17,5 % de los pacientes.No hubo complicaciones postoperatorias en el 84% de loscasos. No hubo márgenes quirúrgicos positivos. El 68 %de los tumores eran pT1a y el 32 % eran pT1b. El 72% delos pacientes tuvo trifecta. Se encontró una diferencia estadísticamente significativa entre trifecta y tamaño tumoral(3 cm contra 4,4 cm; p˂0,001), complejidad (90% baja contra 56% intermedia; p˂0,0001) y pT (81% T1a contra 53%T1b; p˂0,003).Conclusión: La NPR es una modalidad de tratamientosegura y eficaz para los tumores renales T1a y T1b. La tasatrifecta fue del 72% y se encontró que el tamaño del tumor,la complejidad del tumor y el pT eran factores asociados con trifecta (AU)

A prospective randomized controlled trial for assessment of perineal hydrodissection technique for nervesparing robot assisted radical prostatectomy.

BACKGROUND: This study prospectively evaluated the safety and efficacy of perineal hydrodissection in robot assisted nervesparing prostatectomy. METHODS: Patients were randomized for perineal, ultrasound guided hydrodissection (HD) before radical prostatectomy and compared with standard treatment (ST). Follow-up was done every 3 months, including erectile function (IIEF5-score), reported grade of erection, ability for sexual intercourse, continence, PSA. RESULTS: 21 patients were enrolled to this prospective study, 10 for ST and 11 for HD. No significant differences in demographic and preoperative oncological data between both groups were identified. Blood loss and time for surgery did not differ significantly. HD resulted in 66% (4/6) rate of positive surgical margins (PSM) in pT3 tumors vs 50% in ST (1/2; P = 0.67). Follow-up revealed higher IIEF scores, better ability for sexual intercourse and early continence in HD. CONCLUSIONS: Erectile function after radical prostatectomy was improved by perineal hydrodissection in this proof of principal study. However, careful patient selection and further studies are needed as perineal hydrodissection could result in increased positive surgical margins in pT3a tumors.

Doxetacel, el nuevo paradigma en el tratamiento de primera línea del cáncer de próstata metastásico / Doxetacel, the new paradigm for first line treatment of metastatic prostate cancer

Introducción. En este comunicado se resume el estado actual de la quimioterapia con docetaxel (DTX) como tratamiento de primera línea en pacientes con un cáncer de próstata metastásico (CPM) basado en los ensayos clínicos que investigan los resultados oncológico con este novedoso tratamiento. Material y Métodos. Se realizó un revisión no sistemática de artículos que evaluaban al doxetacel como tratamiento de primera línea en el tratamiento del CPM. 5 publicaciones fueron escogidas. Resultados. CHAARTED mostró 13,6 meses más de sobrevida con DTX + bloqueo hormonal (BH) (HR 0,61 y p: <0,001). ESTAMPEDE también mostró 10 meses más de sobrevida en el grupo DTX + BH (HR: 0.78 y p: 0.006). Además CHAARTED evidenció que el DTX redujo el riesgo de muerte del 39m por ciento (HR: 0,61; p <0,001) con una mejora de 17 meses en la sobrevida en el CPM voluminoso (CPMAV) Conclusión. Los datos de los ensayos CHAARTED y STAMPEDE sugieren beneficio en la sobrevida para pacientes con CPM, especialmente cuando los pacientes presentan un CPMAV.

Introduction. This paper summarizes the current status of docetaxel (DTX) chemotherapy as first-line treatment in patients with metastasic prostate cancer (MPC) based on cancer outcomes reported by trials with this novel treatment. Material and methods. A non-systematic review of articles that evaluated doxetacel as the first line of treatment for MPC was performed. 5 publications were selected. Results. CHAARTED showed 13.6 months more survival with DTX + androgénic deprivation (AD) (HR 0.61 and p: <0.001) and ESTAMPEDE also showed 10 months more survival with DTX + AD (HR: 0.78 and p: 0.006) than AD alone. In addition, CHAARTED showed that DTX reduced the risk of death by 39 pertcent (HR: 0.61, p <0.001) and 17 months more survival in bulky MPC (BMPC) Conclusions. Data from the CHAARTED and STAMPEDE trials suggest benefit in survival for patients with MPC, especially when patients have BMPC.

¿Resulta necesaria la colocación de una pinza quirúrgica tempranamente en el cordón espermático durante la exploración testicular por vía inguinal? / Is It Necessary to Place a Surgical Clamp Early in the Spermatic Cord During Testicular Examination Via Inguinal Approach?

Objetivo: Se evalúa la presencia de células tumorales en el cordón espermático en pacientes sometidos a exploración testicular inguinal, con intención de avalar si la colocación de una pinza en el mismo resulta necesaria para evitar la diseminación tumoral. Material y métodos: Durante dos años se realizó exploración testicular inguinal a 38 pacientes con diagnóstico de masa testicular. En todos los pacientes se evaluó la presencia de células tumorales en los vasos sanguíneos o linfáticos del cordón. Resultados: Existió neoplasia testicular en 28 pacientes (20 seminoma, 5 tumor mixto y tres carcinoma embrionario) con una edad promedio de 42 años (rango 21-82). Fueron T1N0M0 21 casos, T1N1M0 tres, T2N0M0 dos y T2N1M0 dos, respectivamente. Independientemente del estadio y estirpe tumoral, en ninguno de los casos el examen de anatomía patológica evidencio células tumorales en los vasos del cordón. Conclusión: En nuestra casuística parece que el gesto quirúrgico consistente en colocar una pinza precozmente en el cordón carece de fundamento científico. Sin embargo, este estudio tampoco permite afirmar que no realizar esta maniobra durante el procedimiento quirúrgico sea oncológicamente seguro. Se establece así un precedente para realizar estudios con mayor número de pacientes que permitan corroborar esta observación, lo que redundará en técnicas quirúrgicas menos traumáticas y seguras que permitan preservar el testículo y su funcionalidad (AU)

Objective: The presence of tumor cells in the spermatic cord was evaluated in patients undergoing inguinal testis study in order to assure if the placement of a clamp in it was necessary to avoid tumor dissemination. Material and methods: Inguinal testis studies were performed over a two year period in 38 patients diagnosed of testicular mass. The presence of tumor cells in blood vessels or lymph nodes of the cord was evaluated in all of the patients. Results: Testicular tumors were found in 28 patients (20 seminoma, 5 mixed tumor and 3 embryonal) with an average age of 42 (range 21-82) years. There were T1N0M0 21; T1N1M0 3; T2N0M0 2 and T2N1M0 2 cases, respectively. Independently of the stage and tumor lineage, tumor cells in the cord vessels were not observed in any of the cases through the pathology study. Conclusion: In our causistics, it seems that the surgical act consisting in the placement of a clamp early in the cord lacks a scientific foundation. However, this study does not make it possible to state that not performing this maneuver during the surgical procedure is oncologically safe. Thus, a precedent is established to perform studies with a larger number of patients that will make it possible to corroborate this observation. This would result in less traumatic and safer surgical techniques that would allow conserving the testis and its functionality (AU)

[Is it necessary to place a surgical clamp early in the spermatic cord during testicular examination via inguinal approach?]. / ¿Resulta necesaria la colocación de una pinza quirúrgica tempranamente en el cordón espermático durante la exploración testicular por vía inguinal?

OBJECTIVE: The presence of tumor cells in the spermatic cord was evaluated in patients undergoing inguinal testis study in order to assure if the placement of a clamp in it was necessary to avoid tumor dissemination. MATERIAL AND METHODS: Inguinal testis studies were performed over a two year period in 38 patients diagnosed of testicular mass. The presence of tumor cells in blood vessels or lymph nodes of the cord was evaluated in all of the patients. RESULTS: Testicular tumors were found in 28 patients (20 seminoma, 5 mixed tumor and 3 embryonal) with an average age of 42 (range 21-82) years. There were T1N0M0 21; T1N1M0 3; T2N0M0 2 and T2N1M0 2 cases, respectively. Independently of the stage and tumor lineage, tumor cells in the cord vessels were not observed in any of the cases through the pathology study. CONCLUSION: In our causistics, it seems that the surgical act consisting in the placement of a clamp early in the cord lacks a scientific foundation. However, this study does not make it possible to state that not performing this maneuver during the surgical procedure is oncologically safe. Thus, a precedent is established to perform studies with a larger number of patients that will make it possible to corroborate this observation. This would result in less traumatic and safer surgical techniques that would allow conserving the testis and its functionality.