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1.
Urol Int ; 106(12): 1220-1225, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36318885

RESUMO

INTRODUCTION: Studies comparing different single-use flexible ureteroscope (su-fURS) models are lacking. The objective was to compare three types of su-fURS: the Uscope 3022 (PUSEN), LithoVue (Boston Scientific), and EU-scope (Innovex). METHODS: This was a retrospective study comparing the clinical outcomes from patients undergoing flexible ureteroscopy with one of the three su-fURS for upper urinary tract stone treatment between September 2019 and 2021. Analysis included total surgery and fluoroscopy time, post-procedure ureteral catheter, stone-free rate (SFR), and complications. RESULTS: There were 104 cases with the Uscope 3022, 141 with LithoVue, and 80 with EU-scope. Groups were comparable in terms of stone size, location and density, and prior double-J stent presence. Multivariate analysis showed no difference in terms of SFR: 79% (Uscope 3022), 77.5% (LithoVue), and 81% (EU-scope); p = 0.38. Significant differences were found for total surgery and fluoroscopy time, as well as ureteral access sheath use (p < 0.001), favoring the EU-scope group. DISCUSSION/CONCLUSION: The three devices evaluated are highly effective in treatment of kidney stones. Reasons for difference in total surgery and fluoroscopy time and access sheath use are not clear. However, this could be explained by technical aspects of these devices, such as external diameter, optical resolution, and field of view.


Assuntos
Ureteroscopia , Cálculos Urinários , Humanos , Estudos Retrospectivos
2.
Cent European J Urol ; 72(3): 280-284, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31720031

RESUMO

INTRODUCTION: The best option for lower pole stone management is still under debate. With the recent incorporation of disposable ureteroscopes, discussion on this topic has been renewed. The aim of the present study was to compare the results obtained with flexible disposable ureteroscopes with those obtained using reusable ureteroscopes in the treatment of inferior calyx stones. MATERIAL AND METHODS: A case-control study was carried out using data registered prospectively in a database at our center. The clinical results obtained in two groups of patients were analyzed. In the first group of patients, a reusable flexible fiber-optic ureteroscope (Cobra®, Richard Wolf) was used, and in the second group, a disposable flexible ureteroscope was used (Uscope 3022®, Pusen Medical). The variables analyzed included: operative time, fluoroscopy time, need for postprocedure ureteral catheter, stone-free rate (fragments <1 millimeter) and complications. The results were evaluated using a Student's t test, a Mann-Whitney test and a Fisher's test. RESULTS: There were 31 cases with disposable ureteroscopes and 30 cases with a reusable ureteroscope. Both groups were comparable in their demographic and clinical variables. The characteristics regarding length, width and angle of the infundibulum (measured by retrograde ureteropyelography) were also comparable. There were no differences in the clinical findings with respect to the stone-free rate, need for a ureteral catheter, complications or hospital stay. Significant differences were found in the average surgery time (56.1 vs. 77 minutes; P = 0.01) and in the fluoroscopy time (66.1 vs. 83.4 seconds; P = 0.02), both favoring the use of single use ureteroscopes. CONCLUSIONS: In this study, disposable flexible ureteroscopes have been validated as an option that is in the least equivalent to reusable ureteroscopes based on clinical results. The shorter surgical and fluoroscopy durations are possible advantages considering the high costs associated with time spent in the operating room and the need to reduce ionizing radiation.

3.
Cent European J Urol ; 71(2): 202-207, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30038811

RESUMO

INTRODUCTION: Reusable endoscopes have some limitations regarding their continued use. To sort out these problems, several disposable devices have appeared on the market. Our objective is to show our clinical results with a new digital flexible single-use ureteroscope. MATERIALS AND METHODS: This study presents a prospective series of patients who underwent endoscopic surgery as treatment for renal stones using the digital disposable endoscope Uscope 3022™. Demographic, procedure and stone information were registered including surgery time, stone-free rate, need of ureteral catheterization and complications, among others. The behavior of the ureteroscope in terms of image quality and problems associated with flexibility and the working channel were also registered. RESULTS: A total of 71 procedures were included in the analysis. The mean age was 49.9 years old, with 70.4% of male patients. Mean stone size was 11.4 mm (4 to 40 mm). The most frequent stone location was in the lower calyces (28.2%). The stone burden was high (>2 cm) in 8.4% of patients. The mean surgical time was 56.6 minutes (15-180 min). In 94.4% of the cases, a laser was used with dusting parameters. The global stone-free rate (SFR) was 95.2%, but in the subgroups analysis SFR were significantly superior in stones less than 10 mm (97.9%) versus stones between 10 and 20 mm (94.5%) and greater than 20 mm (78.3%) (p <0.01). The postoperative placement of double-J stents was required in 66.2% of patients. Two minor complications were recorded and they were related to the ureteral access sheath used. There were no problems regarding the performance of the ureteroscope. CONCLUSIONS: The clinical data observed in this series does not differ from the results traditionally obtained with other reusable devices. To our knowledge, this series is the first worldwide report evaluating the clinical behavior and results in humans of the Uscope 3022.

4.
Arch Esp Urol ; 62(1): 49-55, 2009.
Artigo em Espanhol | MEDLINE | ID: mdl-19400446

RESUMO

OBJECTIVES: Laparoscopically assisted radiofrequency is a minimally invasive nephron-sparing treatment option for renal tumors, mainly in patients with high comorbidity. We present the short-term results of our series patients treated with this novel technique. METHODS: Renal lesions smaller than 4 cm, suspicious of malignancy or metastasis on CT scan or MRI are candidates for radiofrequency. Under laparoscopic vision the tumor is identified, and percutaneous biopsy is performed. Depending on the size of the tumor, a number of punctures with the radiofrequency needle are performed with the aim to achieve tumor necrosis during at least one cycle of radiofrequency. Follow-up is performed with MRI in the first postoperative day and then after CT scan or MRI at 1, 3, 6 and 12 months. The persistent absence of contrast or vascular necrosis of the lesion is considered a satisfactory ablation without recurrence. RESULTS: 12 patients, two with metastasis and ten with primary lesions (mean age 60.8 years), with one or more lesions suspicious of malignancy underwent radiofrequency. Mean ASA was 2.4. 15 tumors were treated, with a mean diameter of 2.8 cm. An average of 2.5 punctures was performed with the radiofrequency needle. Biopsy results showed: one case of thyroid cancer metastasis, one case of melanoma metastasis, and 10 cases of renal cell carcinoma. Mean hospital stay was 25.8 hours. There were not short-term complications. Follow-up time was 8.8 months. Today there is no evidence of recurrence in imaging tests. CONCLUSIONS: Radiofrequency is effective eradicating small renal lesions, both primary and metastatic; it is especially useful in patients with high comorbidity. Despite the number of patients with adequate follow-up is not enough, the technology is promising. The approach under laparoscopic vision contributes to an effective biopsy, avoiding dissemination and enabling a more precise radiofrequency by direct vision control of tumor necrosis.


Assuntos
Ablação por Cateter , Neoplasias Renais/cirurgia , Idoso , Idoso de 80 Anos ou mais , Ablação por Cateter/métodos , Humanos , Neoplasias Renais/patologia , Pessoa de Meia-Idade , Néfrons , Estudos Prospectivos , Adulto Jovem
5.
Arch. esp. urol. (Ed. impr.) ; 62(1): 49-55, ene.-feb. 2009. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-60001

RESUMO

OBJETIVO: La radiofrecuencia con asistencia laparoscópica es una opción de tratamiento minimamente invasivo para la conservación de parénquima renal, especialmente en pacientes con comorbilidad aumentada. Se presentan los resultados a corto plazo de los pacientes tratados por esta novedosa técnica.MÉTODOS: Las lesiones renales menores de 4 cm., sospechosas de malignidad o de metástasis a la TC o RNM son candidatas para radiofrecuencia. Bajo visión laparoscópica el tumor es identificado, realizándose una biopsia por punción percutánea. Según tamaño del tumor, se realiza un determinado número de punciones con aguja de radiofrecuencia, con el fin de lograr la necrosis del tumor durante al menos 1 ciclo de radiofrecuencia. El seguimiento es realizado con RNM en el día post operatorio 1 y luego con TC o RNM al mes, 3, 6 y 12 meses. La ausencia persistente de contraste o la necrosis vascular de la lesión es considerada una ablación satisfactoria sin recurrencia.RESULTADOS: Doce pacientes, 2 por enfermedad metastásica y 10 por lesiones primarias (edad promedio 60.8 años), con una o más lesiones sospechosas de malignidad fueron tratadas con radiofrecuencia. El ASA promedio fue de 2,4. El número de tumores tratados fue de 15 con un diámetro de 2,8 cm. Se utilizaron un promedio de 2,5 punciones con aguja de radiofrecuencia. Los resultados de la biopsia fueron metástasis de 1° tiroídeo: 1 paciente, metástasis de melanoma: 1 paciente y cáncer de células renales en 10 pacientes. La estadía hospitalaria promedio fue de 25.8 horas. No existieron complicaciones a corto plazo. Tiempo de seguimiento 8.8 meses. Hasta hoy no hay evidencias de recidiva en los controles imagenológicos(AU)


CONCLUSIONES: La radiofrecuencia es efectiva en erradicar lesiones renales pequeñas, tanto primarias como metastásicas, siendo especialmente útil en pacientes con comorbilidad aumentada. A pesar de que no hay una cantidad suficiente de pacientes con seguimiento adecuado, esta tecnología es prometedora. El abordaje bajo visión laparoscópica contribuye a una biopsia efectiva, evitando diseminación y permite una radiofrecuencia más certera al constatar bajo visión directa la necrosis del tumor(AU)


OBJECTIVES: Laparoscopically assisted radiofrequency is a minimally invasive nephron-sparing treatment option for renal tumors, mainly in patients with high comorbidity. We present the short-term results of our series patients treated with this novel technique.METHODS: Renal lesions smaller than 4 cm, suspicious of malignancy or metastasis on CT scan or MRI are candidates for radiofrequency. Under laparoscopic vision the tumor is identified, and percutaneous biopsy is performed. Depending on the size of the tumor, a number of punctures with the radiofrequency needle are performed with the aim to achieve tumor necrosis during at least one cycle of radiofrequency. Follow-up is performed with MRI in the first postoperative day and then after CT scan or MRI at 1, 3, 6 and 12 months. The persistent absence of contrast or vascular necrosis of the lesion is considered a satisfactory ablation without recurrence.RESULTS: 12 patients, two with metastasis and ten with primary lesions (mean age 60.8 years), with one or more lesions suspicious of malignancy underwent radiofrequency. Mean ASA was 2.4. 15 tumors were treated, with a mean diameter of 2.8 cm. An average of 2.5 punctures was performed with the radiofrequency needle. Biopsy results showed: one case of thyroid cancer metastasis, one case of melanoma metastasis, and 10 cases of renal cell carcinoma. Mean hospital stay was 25.8 hours. There were not short-term complications. Follow-up time was 8.8 months. Today there is no evidence of recurrence in imaging tests.çCONCLUSIONS: Radiofrequency is effective eradicating small renal lesions, both primary and metastatic; it is especially useful in patients with high comorbidity. Despite the number of patients with adequate follow-up is not enough, the technology is promising. The approach under laparoscopic vision contributes to an effective biopsy, avoiding dissemination and enabling a more precise radiofrequency by direct vision control of tumor necrosis(AU)


Assuntos
Humanos , Masculino , Feminino , Neoplasias Renais/radioterapia , Neoplasias Renais/cirurgia , Ablação por Cateter/métodos , Laparoscopia , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Biópsia/métodos , Laparoscopia/tendências , Comorbidade , Procedimentos Cirúrgicos Minimamente Invasivos/tendências , Estudos Prospectivos , Nefrectomia/métodos , Necrose/complicações , Necrose/radioterapia , Necrose/cirurgia
6.
Rev. chil. cir ; 58(1): 40-44, feb. 2006. ilus
Artigo em Espanhol | LILACS | ID: lil-627053

RESUMO

Objetivo: Presentamos nuestra experiencia en Prostatectomía Radical Laparoscópica Extraperitoneal (PRLE), destacando la técnica quirúrgica, resultados y complicaciones. Material y Método: Se incluyen 106 pacientes con cáncer de próstata tratados en forma consecutiva en nuestra Unidad mediante PRLE entre mayo del 2000 y enero del 2004. Resultados: La edad promedio fue 61 años (rango: 40-78 años) y el valor promedio del antígeno prostático específico fue de 10,31 ng/ml (rango: 1,6-66,8 ng/ml). La técnica quirúrgica fue reproducida en la totalidad de los pacientes. El tiempo quirúrgico promedio fue de 156 min (rango: 80-390 min). El sangrado intraoperatorio promedio fue 577 ml y la tasa de transfusión fue del 26%. Se administró analgesia endovenosa en las siguientes 36 horas a la cirugía y en ningún paciente hubo necesidad de utilizar analgésicos opiáceos. La deambulación ocurrió en las primeras 24 horas del postoperatorio en todos los pacientes y excepto por 3 casos, el drenaje tubular sólo se necesitó en las primeras 24 a 48 horas. La media de la estadía hospitalaria fue 3 días y el tiempo promedio de cateterización vesicouretral fue 7 días. Las complicaciones más frecuentes fueron retención urinaria (6,6%), lesión de recto (5,6%), estrechez de la anastomosis (5,6%), fístula recto-vesical (2.8%) y filtración de la anastomosis (2,8%). Conclusión: Nuestra serie ratifica que la PRLE es un procedimiento bien tolerado, con buenos resultados en lo referente a dolor postoperatorio y tiempo de hospitalización. Cuando ocurren complicaciones, éstas tienden a ser más severas que cuando se presentan en cirugía abierta y son dependientes de la experiencia del cirujano.


Background: The extraperitoenal approach for radical prostatectomy is a minimally invasive technique with a low incidence of complications. Aim: To report a series of patients with localized prostate cancer, managed with extraperitoneal laparoscopic radical prostatectomy (ELRP). Patients and Methods: Report of 106 patients (age range 40-78 years)successively subjected to ELRP between May 2002 and January 2004. Results: Preoperative prostate specific antigen ranged from 1.6 to 66.8 ng/ml. Mean operative time was 156 minutes (range: 80-390 minutes). Mean blood loss was 577 mL and transfusion rate was 26%. Analgesics were used in the first 36 hours after surgical procedure and opiates were not required. Mean hospital stay was 3 days and average urinary catheter use was 7 days. The most common complications were urinary retention in 6.6% , rectal lesions in 5.6%, vesico-urethral anastomosis stricture in 5.6%, vesico-rectal fistula in 2.8% and vesico-urethral anastomosis leak in 2.8% of patients. Conclusions: ELRP is a well tolerated procedure, with good operative results in terms of postoperative pain and hospital stay. However, when complications occur, they tend to be more severe than in open surgery.

7.
Rev. chil. urol ; 70(4): 205-209, 2005. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-452487

RESUMO

El objetivo de este trabajo es evaluar la reproducibilidad y presentar nuestros resultados quirúrgicos y funcionales, al realizar la técnica de la prostatectomía radical por vía perineal. Material y método: La serie la componen 51 pacientes con diagnóstico clínico de cáncer de próstata localizado, tratados entre julio de 1997 y noviembre de 2000. La técnica quirúrgica utilizada fue la misma en todos los pacientes (sin preservación de bandeletas) y los resultados se recolectaron en forma prospectiva en una planilla de datos. Resultados: Se logró reproducir la técnica en todos los pacientes de la serie. El tiempo operatorio y el sangrado promedio fue de 71 minutos y 289 ml, respectivamente (transfusión en 9,8 por ciento). Se produjo apertura accidental del recto en 6 casos (11,7 por ciento), reparándose todos en forma primaria y exitosamente. Se requirió analgesia EV y reposo completo sólo por 24 h en promedio y la estadía hospitalaria varió entre los 2 y 5 días. Se observaron 3 casos de estenosis uretral como única complicación tardía. Se evaluó la continencia, en 45 pacientes, el 93,3 por ciento no requiere protectores (42 casos), con continencia completa 35 (77,7 por ciento) y con goteo de esfuerzo 7 (15,5 por ciento). Tres pacientes tienen incontinencia, 2 de ellos moderada (1 a 2 paños al día) y 1 presenta incontinencia completa. Conclusiones: La prostatectomía radical perineal es una técnica reproducible y tanto los resultados intraoperatorios como los funcionales, la hacen una vía a considerar en el manejo de pacientes con cánceres de próstata localizados.


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias da Próstata/cirurgia , Prostatectomia/métodos , Complicações Intraoperatórias , Complicações Pós-Operatórias , Reprodutibilidade dos Testes , Tempo de Internação
8.
Rev. chil. cir ; 56(6): 572-579, dic. 2004. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-425116

RESUMO

Material y Método: La serie la componen 56 pacientes con diagnóstico clínico de cáncer de próstata localizado, tratados entre mayo de 2000 y diciembre de 2001. La técnica quirúrgica utilizada se describe y se aplicó en todos los pacientes. Los resultados se recolectaron prospectivamente en una planilla de datos. Resultados: Se logró reproducir la técnica en todos los pacientes de la serie. El tiempo operatorio y el sangrado promedio fue de 208 minutos y 283 ml, respectivamente (transfusión en 16 por ciento). Nueve pacientes presentaron complicaciones intraoperatorias (16 por ciento), 7 de las cuales se manejaron laparoscópicamente y dos debieron convertirse a cirugía abierta. El postoperatorio promedio requirió de analgesia EV por 36 h, reposo por 24 h, cateterización vesical por 4 días y estadía hospitalaria de 6 días. Se observaron 13 complicaciones postoperatorias, 4 mayores (fístula recto-vesical) y 9 menores, todas las cuales fueron manejadas conservadoramente con reposo y sonda uretro-vesical. A los 3 meses de la cirugía 50 pacientes son absolutamente continentes (89 por ciento), 5 tienen incontinencia moderada (9 por ciento) y uno severa (1,7 por ciento), mientras que a los 6 meses, 54 pacientes (96 por ciento), son absolutamente continentes. Se preservaron bandeletas neurovasculares en 14 pacientes previamente potentes, presentando erecciones totales o parciales 3 de ellos (21,3 por ciento). Conclusiones: La prostatectomía radical laparoscópica es una técnica estandarizada y reproducible. Si bien los resultados operatorios, funcionales y complicaciones, son razonables y comparables con la literatura internacional, hace falta una mayor serie, valoración oncológica y seguimiento mayor para poder concluir si en nuestras manos constituye una alternativa mejor, peor o comparable a la cirugía abierta.


Assuntos
Adulto , Masculino , Humanos , Pessoa de Meia-Idade , Laparoscopia/métodos , Neoplasias da Próstata , Prostatectomia/métodos , Chile , Complicações Intraoperatórias , Procedimentos Cirúrgicos Minimamente Invasivos , Complicações Pós-Operatórias , Reprodutibilidade dos Testes , Resultado do Tratamento
9.
Rev Med Chil ; 130(1): 91-5, 2002 Jan.
Artigo em Espanhol | MEDLINE | ID: mdl-11961969

RESUMO

The presence of cancer in a hernia sac is uncommon. The tumor can involve the hernia sac, the herniated mass or be external to the hernia sac. We report two cases with this condition. A 68 years old male was operated of a right inguinal hernia. During surgery, several white nodules were noted in the internal side of hernia sac. The same lesions were present in the mesentery. Pathological study revealed an adenocarcinoma. The primary tumor was not located and the patient died one and a half years after the procedure. A 62 years old male was operated due to an irreducible inguinal mass, seven months after a subtotal gastrectomy for gastric cancer. During the resection of the mass, metastasis implants in the mesenteric adipose tissue were noted. A mini laparotomy was performed and an extensive peritoneal tumor dissemination was found. The patient died two months after surgery.


Assuntos
Adenocarcinoma/secundário , Neoplasias do Colo/secundário , Hérnia Inguinal/patologia , Neoplasias Primárias Desconhecidas , Neoplasias Gástricas/patologia , Idoso , Evolução Fatal , Hérnia Inguinal/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Gástricas/cirurgia
10.
Rev. chil. salud pública ; 6(2/3): 80-84, 2002. graf
Artigo em Espanhol | LILACS | ID: lil-348135

RESUMO

El carcinoma testicular es la neoplasia sólida maligna más común en hombres entre 15 y 35 años. Su incidencia en Chile es desconocida. Anualmente fallecen en Chile unos 100 pacientes por esta patología, duplicándose su mortalidad en los últimos 30 años. El objetivo de este trabajo es caracterizar clínicamente a los pacientes tratados por el diagnóstico de cáncer testicular. Es un estudio descriptivo, retrospectivo, de una muestra de 244 pacientes con diagnóstico de cáncer testicular tratados en el Servicio de Urología del Hospital J.J. Aguirre, entre los años 1992 y 1999. Se analizó edad, antecedente de criptorquidia, lado afectado, presentación clínica, tiempo de latencia en consultar e histología. El promedio de edad fue de 30 años, con 84 por ciento menor de 35 años. Un 4 por ciento fue bilateral, un 50 por ciento izquierdo y 46 por ciento derecho. Un 50 por ciento se presentó con aumento de volumen indoloro, un 38 por ciento aumento de volumen doloroso, un 6 por ciento dolor sin aumento de volumen y un 6 por ciento presentó manifestaciones metastásicas. El tiempo promedio de latencia en la consulta fue de 14,5 semanas. El análisis histológico reveló 38 por ciento de seminomas, 34 por ciento de tumores no seminomas y 28 por ciento de histología mixta. Se concluye que los cánceres testiculares afectan a la población joven. Son predominantemente unilaterales. El aumento de volumen gonadal está presente en cerca de un 88 por ciento de los casos. El autoexamen podría constituir un importante método de screening. Se debe realizar una campaña de educación dirigida a promover el autoexamen y a motivar una consulta precoz, disminuyendo los tiempos de latencia y por consiguiente mejorando el pronóstico


Assuntos
Humanos , Masculino , Neoplasias Testiculares , Fatores Etários , Criptorquidismo , Disgenesia Gonadal , Metástase Neoplásica , Fatores de Risco , Autoexame , Seminoma , Neoplasias Testiculares
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