Protocol description and initial experience in kidney graft perfusion using infrared thermography.

PURPOSE: Protocol description for renal perfusion study using thermographic technology and description of the thermographic and clinical behavior of the transplanted kidneys before and after unclamping. METHODS: Infrared thermographic images of renal grafts are obtained before kidney reperfusion, 10 min after and just before closing the surgical wound. Thermographic data is evaluated together with the type of graft and donor, cold ischemia time, hypovascularized areas determined by the surgeon during surgical intervention, alterations in vascular flow in postoperative echo-Doppler, time at the beginning of graft function and serum creatinine monitoring during postoperative follow-up. RESULTS: 17 grafts were studied. The mean temperature of the grafts before reperfusion, 10 min after and at the end of the surgery were 18.7 °C (SD 6.27), 32.36 °C (SD1.47) and 32.07 °C (SD1.78) respectively. 4 grafts presented hypoperfused areas after reperfusion. These areas presented a lower temperature compared to the well perfused parenchyma surface using thermographic images. CONCLUSION: The study of the usefulness and applicability of thermography can allow the development of tools that provide additional objective information on organ perfusion in real time and non-invasive manner. Our protocol and initial results can contribute to provide new evidence. Further analyses should be developed to shed light on the role of this technology.

Robot Assisted Radical Prostatectomy in Kidney Transplant Recipients. Our Clinical Experience and a Systematic Review.

INTRODUCTION: Radical prostatectomy is a more skillful procedure in kidney graft recipients. Robotic surgery can provide a useful minimally invasive tool. OBJECTIVES: The study aims to evaluate the robotic-assisted laparoscopic prostatectomy (RALP) in kidney transplant recipients, describing intra/postoperative complications, renal and oncological outcomes. METHODS: This is a retrospective study conducted in a single institution of 84 RALP. Four of them were kidney transplant recipients. Side of the renal graft, clinical stage, intra/postoperative events, operating time, creatinine levels before/after intervention and oncologic follow-up were recorded. A systematic review of the literature was performed. RESULTS: Aged 61.25 ± 7.76 years, interval between renal transplantation and RALP: 10 ± 3.16 years. Mean prostate specific antigen: 7.1 ± 2.8 ng/ml, 2 patients were cT1c and 2 cT2a. Preoperative biopsies: Gleason score 3 + 3 in 3 patients, 3 + 4 in 1 patient. Charlson comorbidity index mean was 4.82 ± 0.82. No intra/postoperative events were reported. Mean operating time: 196 ± 20.8 min. Positive surgical margins: 2/4 patients. Pathological analysis: Gleason 3 + 4 in 2 patients and Gleason 3 + 3 in the others 2. A patient developed a bladder neck sclerosis. No differences between pre/postoperative creatinine. Three patients are free of biochemical recurrence and 1 patient required adjuvant radiotherapy. CONCLUSION: RALP in renal transplant recipients is a safe and feasible technique for localized prostate cancer. No difference in oncological outcomes and no impairments on renal function were found.

[Fusion biopsy. Analysis of fusion software platforms.] / Biopsias de fusión. Análisis de las plataformas de software.

Transrectal ultrasound has been a diagnostic method for diagnosis of prostate cancer for more than 30 years. It increased its options after the incorporation of MRI in the 90s. The association of real-time ultrasound with anatomical and functional data of multiparametric magnetic resonance imaging (mpMRI) has changed the prostate cancer scenario and presumably will modify the therapeutic alternatives. OBJECTIVES AND METHODS: In the following non systematic review of the literature, we present the current situation of different types of fusion biopsy, the initial preclinical and clinical results as well as the data collected in the different meta-analyses. RESULTS: Although "in bore" biopsy has shown the best sensitivity, its economic and accessibility problems make it the least widespread. Cognitive biopsy is one of the most widespread despite being the one that provides the least objective results. Fusion biopsies with Software Platform are being developed as the most reproducible and affordable in our environment. The data in the literature is still insufficient to establish what is the best software. There are many points of controversy such as number of cores, approach, associated systematic biopsies and possible connotations when assessing the therapeutic attitude. CONCLUSION: None of the Software platforms have demonstrated superiority in the diagnosis of cancer, although their results are superior to those obtained through standard and cognitive biopsy and are more affordable than the "In bore" biopsy. It is necessary to standardize the publications to be able to compare results (classification of risk in resonance, number of cores, approach). The diagnosis of cancer guided by MRI should be a factor to consider in therapeutic decision nomograms. The next challenge is the incorporation of these systems in the protocols of active surveillance and Focal Therapy.

La ecografía Transrectal (TR), método de diagnóstico del cáncer de próstata (CAP) desde hace más de 30 años, ha visto incrementadas sus opciones tras la incorporación de la resonancia en los años 90. La asociación de ecografía a tiempo real con datos anatómicos y funcionales de resonancia magnética multiparamétrica (RMmp) ha cambiado el escenario del diagnóstico de CAP y modificará las alternativas terapéuticas.OBJETIVO y MÉTODO: Con el siguiente resumen no sistemático de la literatura, se presenta la situación actual de las distintas modalidades de biopsia fusión, los resultados preclínicos y clínicos iniciales, así como los datos recogidos en los distintos meta-análisis.RESULTADOS: Si bien la Biopsia "in bore" es la que ha demostrado una mayor sensibilidad, sus inconvenientes económicos y de accesibilidad la convierten en el menos extendido. La Biopsia cognitiva es uno de los más extendidos a pesar de ser el que aportan menos resultados objetivos. Las Biopsias fusión con Plataforma Software se están incorporando en nuestro medio como las más reproducibles y asequibles. Los datos son aún insuficientes para poder establecer cuál es el mejor software. Son muchos los puntos de controversia (número de cores, vía de abordaje, biopsias sistemáticas asociadas) y las posibles connotaciones en la elección del tratamiento.CONCLUSIÓN: Ninguna de las plataformas de Software ha demostrado su superioridad si bien sus resultados son superiores a los obtenidos mediante Biopsia estándar y cognitiva y es más asequible que la biopsia "In bore". Es necesario estandarizar las publicaciones para poder comparar los resultados (clasificación de riesgo en resonancia, número de cores, abordaje). El diagnóstico de cáncer mediado por RMN deber ser un factor a tener en cuenta en los nomogramas de decisión terapéutica. El siguiente reto es la incorporación de estos sistemas en los protocolos de vigilancia activa y Terapia Focal.