Comparison in Detection Rate of Clinically Significant Prostate Cancer Between Microultrasound-guided Prostate Biopsy (ExactVu) and Multiparametric Resonance Imaging-guided Prostate Biopsy (Koelis System).

OBJECTIVES: To compare the detection rate of clinically significant prostate cancer (csPC) and prostate cancer (PC) and to find out the diagnostic concordance between microultrasound (mUS), a high-resolution imaging system that can identify suspicious prostate lesions and biopsy them in real time, and multiparametric magnetic resonance imaging (mpMRI)-guided prostate fusion biopsies. METHODS: A prospective, multicenter, single-blind, single cohort study was conducted involving 80 patients with clinically suspected PC who underwent concomitant mpMRI-guided fusion prostate biopsy (Koelis System) and mUS-guided biopsy (ExactVu System) RESULTS: The detection rate of csPC was slightly higher for image-guided fusion biopsy (21.25% vs 18.75%), but this difference was not statistically significant (P = .453). There was also no significant difference in overall PC diagnosis (50% vs 51.25%, P = .897). The degree of agreement between the 2 diagnostic techniques for the detection of csPC as assessed by Cohen's Kappa concordance index was satisfactory κ ̂ = 0.676. The degree of International Society of Urological Pathology of targeted biopsies obtained from concordant lesions was also represented by satisfactory concordance with a Kappa index of κ ̂ = 0. 696. CONCLUSION: mUS-guided biopsy is presented as an effective diagnostic method for the diagnosis of csPC compared to image-guided fusion biopsy. No differences are found in the detection rates of csPC and PC between the 2 strategies and satisfactory concordance is found in terms of histopathological findings.

Iterative renal transplantation: our experience on third transplants.

PURPOSE: To report our experience on third kidney transplantation, analyzing the complications and graft survival rates as compared to previous transplants. METHODS: Retrospective study of third renal transplants performed at our center. Outcomes were compared with a cohort of first and second transplants. RESULTS: Of a total of 4143, we performed 72 third transplants in 46 men and 26 women with an average age of 46 years and mean time on dialysis of 70 months. Thirty-seven patients were hypersensitized [panel-reactive antibody (PRA) > 50%]. They were all from deceased donors, with a mean cold ischemia time of 19.2 h. The extraperitoneal heterotopic approach was used in 88.8%, transplantectomy was performed in 80.6% and vascular anastomoses were realized mostly to external iliac vessels, using the common iliac artery in 15 cases, and the inferior vena cava in 16. The main ureteral reimplantation technique was the Politano-Leadbetter (76.4%). Third transplantation reported a significantly higher incidence of lymphocele (13.9% vs. 3.2% in first and 4.5% in second transplants; p < 0.001), rejection (34.7% vs. 14.9% and 20.5%, p < 0.001) and urinary obstruction (11.1% vs. 3.6% and 6.3%, p 0.002). Graft survival rates for first, second and third transplants were 87%, 86% and 78% at 1 year, 83%, 82% and 74% at 3 years and 80%, 79% and 65% at 5 years, respectively. CONCLUSION: Iterative transplantation constitutes a valid therapeutic option with adequate surgical and survival results compared to previous transplants. It is a challenging procedure which must be performed by experienced surgeons.

Diagnóstico por imagen de la litiasis urinaria / Urinary stone imaging tests

El diagnóstico por imagen de la urolitiasis comprende un amplio grupo de técnicas, con diferentes características, limitaciones e indicaciones, que en su conjunto permiten el manejo de esta patología tan prevalente. La radiografía simple de abdomen y la ecografía son técnicas muy accesibles y económicas que combinadas presentan una aceptable sensibilidad y especificidad. Siendo ampliamente utilizadas para el seguimiento de la evolución de la enfermedad litiásica y para la valoración tras tratamientos (cirugía o LEOC). La ecografía es la técnica de elección en la población pediátrica y en gestantes. El TC se ha impuesto sobre la UIV en la valoración anatómica de la vía urinaria y la descripción de las características de la litiasis, aunque presenta una mayor exposición a radiaciones ionizantes, por lo que se está extendiendo el uso del TC de baja y ultrabaja dosis. Tratamos también en este artículo otras técnicas como la Tomosíntesis digital, la Fluoroscopia y la Gammagrafía DMSA

Imaging in urolithiasis has a wide group of techniques, with different characteristics, limitations, and indications, which together allow the management of this prevalent pathology. Plain abdominal radiography and ultrasound are very accessible and inexpensive techniques that combined present an acceptable sensitivity and specificity. They are widely used for monitoring the evolution of stone disease and for evaluation after treatments (surgery or SWL). Ultrasound is the primary radiological diagnostic tool in the pediatric population and in pregnant women. CT has prevailed over IVP in the anatomical assessment of the urinary tract and the description of the characteristics of the lithiasis, although it shows a greater exposure to ionizing radiation, so the use of low and ultra-low dose CT is spreading. In this article we also discuss other imaging techniques such as Digital tomosynthesis, Fluoroscopy and DMSA Scintigraphy

[Urinary stone imaging tests.] / Diagnóstico por imagen de la litiasis urinaria.

Imaging in urolithiasis has a wide group of techniques, with different characteristics, limitations, and indications, which together allow the management of this prevalent pathology. Plain abdominal radiography and ultrasound are very accessible and in expensive techniques that combined present an acceptable sensitivity and specificity. They are widely used for monitoring the evolution of stone disease and for evaluation after treatments (surgery or SWL). Ultrasound is the primary radiological diagnostic tool in the pediatric population and in pregnant women. CT has prevailed over IVP in the anatomical assessment of the urinary tract and the description of the characteristics of the lithiasis, although it shows a greater exposure to ionizing radiation, so the use of low and ultra-low dose CT is spreading. In this article we also discuss other imaging techniques suchas Digital to mosynthesis, Fluoroscopy and DMSA Scintigraphy.

El diagnóstico por imagen de la urolitiasis comprende un amplio grupo de técnicas, con diferentes características, limitaciones e indicaciones, que en su conjunto permiten el manejo de esta patología tan prevalente. La radiografía simple de abdomen y la ecografía son técnicas muy accesibles y económicasque combinadas presentan una aceptable sensibilidad y especificidad. Siendo ampliamente utilizadas para el seguimiento de la evolución de la enfermedad litiásica y para la valoración tras tratamientos (cirugía o LEOC). La ecografía es la técnica de elección en la población pediátrica y en gestantes. El TC se ha impuesto sobre la UIV en la valoración anatómica de la vía urinaria y la descripción de las características de la litiasis,  aunque presenta una mayor exposición a radiaciones ionizantes, por lo que se está extendiendo el uso del TC de baja y ultrabaja dosis. Tratamos también en este artículo otras técnicas como la Tomosíntesis digital, la Fluoroscopiay la Gammagrafía DMSA.