Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 6 de 6
Filtrar
Mais filtros










Base de dados
Tipo de estudo
Intervalo de ano de publicação
1.
Urol Oncol ; 36(5): 242.e9-242.e14, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29519561

RESUMO

OBJECTIVE: To report the sensitivity and specificity of neural precursor cell-expressed developmentally down-regulated protein 9 (NEDD9) protein high expression in predicting BCG response and its effect on recurrence or progression free survivals. PATIENTS AND METHODS: Between May 2014 and April 2017, a prospective cohort study was conducted on 105 patients with intermediate or high-risk nonmuscle invasive bladder cancer. Immunohistochemical staining with mouse monoclonal anti-NEDD9 antibody was done. Examination of the slides was done to detect NEDD9 cytoplasmic expression. Intravesical induction bacillus Calmette-Guerin (BCG) instillation therapy was started for all patients 2 to 4 weeks after endoscopy with once weekly instillation for 6 weeks. Intravesical maintenance BCG instillation was then continued every 3 months for at least 1 year. Follow up with cystoscopy every 3 months for 2 years and every 6 months after that. RESULTS: The mean age ± SD of the patients was 57 ± 4.5 years. The median follow-up period was 25 (12-36) months. NEDD9 protein was highly expressed in 61 (58.1%) patients, whereas low expression was in 44 (41.9%) patients. Sensitivity and specificity of NEDD9 high expression in predicting recurrence were 83.6% and 64.2%, respectively. Its sensitivity and specificity in predicting progression to muscle invasion or distant metastases were 91.3% and 51.2%, respectively. Its sensitivity and specificity in predicting complete response to BCG therapy were 84.1% and 80.9%. Kaplan-Meier test showed highly significant difference (P<0.0001) in survival without recurrence or progression between patients showing high expression and those showing low expression. CONCLUSION: NEDD9 protein tissue marker could be used as a predictive marker for BCG response in nonmuscle invasive bladder cancer with reasonable sensitivity and specificity.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/metabolismo , Vacina BCG/uso terapêutico , Biomarcadores Tumorais/metabolismo , Recidiva Local de Neoplasia/patologia , Fosfoproteínas/metabolismo , Neoplasias da Bexiga Urinária/patologia , Administração Intravesical , Adulto , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/metabolismo , Prognóstico , Estudos Prospectivos , Taxa de Sobrevida , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/metabolismo
2.
Urology ; 115: 71-75, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29501625

RESUMO

OBJECTIVE: To compare the distance between the colon and the trajectory of percutaneous nephrolithotomy (PCNL) access both in prone and flank-free modified supine (FFMS) positions as measured on computed tomography and to study the effect of age, gender, BMI, side, and previous renal surgery as influencing factors. PATIENTS AND METHODS: In this prospective study, we included 367 patients scheduled for PCNL. All patients underwent low dose abdominal computed tomography both in prone and FFMS positions. Patients <18 years and those with previous colonic surgery or renal congenital anomalies were excluded. The perpendicular distance between the imaginary line of the renal access and the colon was measured. Findings were correlated to different influencing factors. RESULTS: Two hundred nineteen patients were males, and 148 were females. BMI of <30 were reported in 158 patients whereas BMI >30 in 209 patients. Data analysis showed that the mean perpendicular distance between colon and the renal access in FFMS and prone positions were 35.92 ± 0.22 mm and 17.78 ± 0.09 mm, respectively. In prone position only obesity, age, and overall interaction effect were the significant factors on the studied distance. In FFMS position, in addition to the effect of the prior factors, previous renal surgery also significantly reduces this distance. CONCLUSION: The distance between the colon and assumed PCNL trajectory at a puncture on the posterior axillary line was influenced mainly by patient position. In FFMS position the colon appears to be farther than in prone position. BMI and age significantly influence this distance to a lesser extent.


Assuntos
Colo/diagnóstico por imagem , Cálculos Renais/cirurgia , Rim/diagnóstico por imagem , Nefrolitotomia Percutânea , Posicionamento do Paciente , Adulto , Fatores Etários , Índice de Massa Corporal , Feminino , Humanos , Masculino , Decúbito Ventral , Estudos Prospectivos , Punções , Fatores Sexuais , Decúbito Dorsal , Tomografia Computadorizada por Raios X
3.
Urology ; 105: 202-207, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28411100

RESUMO

OBJECTIVE: To report the functional results of continent cutaneous ileal urinary diversion using modified W-pouch with non-isolated extra limb for continence. PATIENTS AND METHODS: From January 2013 to January 2016, 21 patients with muscle-invasive bladder cancer with median (interquartile range) of 59 (56.5-62.5) years old underwent radical cystectomy with pelvic lymphadenectomy; they then had an ileal continent cutaneous pouch constructed from W-pouch with non-isolated extra limb for continence. The technique entails the creation of a detubularized ileal W-pouch with extra limb fashioned from 59 cm of the terminal ileum. This extra limb is not isolated from the pouch. The proximal part of this limb is tailored and fixed in a subserous extramural tunnel for continence, whereas the distal part is left continuous with the pouch. The median (interquartile range) of follow up was 12 (8-17) months. Evaluation of the technique included operative time, continence efficiency, overall complications, and quality of life questionnaire for the patients. RESULTS: The median (interquartile range) of operative time of the operation was 4.7 (3.9-5.4) hours. The median (interquartile range) of operative time of the cutaneous pouch creation was 39 (33-43) minutes. No perioperative mortality had occurred. The incidence of continence was 95.2%. The overall complications were 42.8%, and most of them were grade 1 or 2 on Clavien-Dindo classification system. CONCLUSION: Modification of W-pouch with non-isolated extra limb as continent cutaneous pouch can simplify the technique and shorten the operative time with efficient continence, less side effects, and good quality of life.


Assuntos
Cistectomia , Íleo/cirurgia , Neoplasias da Bexiga Urinária/cirurgia , Derivação Urinária/métodos , Coletores de Urina , Idoso , Estudos de Coortes , Feminino , Humanos , Excisão de Linfonodo , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Qualidade de Vida , Resultado do Tratamento
4.
Arab J Urol ; 15(1): 30-35, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28275515

RESUMO

OBJECTIVE: To evaluate the efficacy and safety of immediate versus delayed shockwave lithotripsy (SWL) for inaccessible stones after uncomplicated percutaneous nephrolithotomy (PCNL). PATIENTS AND METHODS: Between December 2011 and June 2014, patients with residual inaccessible stones after uncomplicated PCNL were prospectively randomised into two treatment groups; Group I, immediate SWL and Group II, delayed SWL at 1 week after PCNL. Patients with residual stones of ⩾1.5 cm, a stone density of >1000 Hounsfield units and body mass index of >40 kg/m2 were excluded from the study. The following data were reported: patients' demographics, stone characteristics after PCNL, hospital stay, perioperative complications, stent duration, and stone-free rate (SFR). RESULTS: In all, 84 patients (51 males and 33 females) with mean (SD) age of 39 (8.5) years were included in the study. Group I included 44 patients, whilst Group II included 40 patients. There was no statistically significant difference amongst the groups for patients' demographics, stone characteristics, and perioperative complications. The hospital stay was significantly shorter in Group I, at a mean (SD) of 34 (3.7) vs 45 (2.9) h (P < 0.001). The duration of ureteric stenting was significantly lower in Group I as compared to Group II, at a mean (SD) of 12 (4.2) vs 25 (3.5) days (P < 0.001). The SFR was 93.2% and 95% in Groups I and II, respectively (P = 0.9). CONCLUSIONS: Immediate SWL after PCNL is as effective and safe as delayed SWL with a lesser hospital stay and duration of ureteric stenting.

5.
Urology ; 85(5): 1162-1165, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25794427

RESUMO

OBJECTIVE: To evaluate the safety and efficacy of pediatric percutaneous nephrolithotomy (PCNL) in the flank-free modified supine position (FFMSP). PCNL in the supine position is increasingly and successfully used in pediatric age group. Different modifications of supine positions have been described; however, the best supine position is not well established and remains a matter of debate. PATIENTS AND METHODS: This prospective study included 22 children presenting with single renal pelvis stone (2-3 cm) in the period between May 2012 and April 2014. Diagnosis was set by plain x-ray and computed tomography in all patients. PCNL was performed with the patients placed in the FFMSP. The operative time and hospital stay were estimated. The outcome and any perioperative complications or conflicts were recorded. RESULTS: The study included 22 children (15 boys and 7 girls) with a solitary renal pelvis stone. Mean ± standard deviation age of the patients was 9.5 ± 3.2 years (range, 3-15.5 years). Stone length, operative time, and hospital stay had mean ± standard deviation of 2.4 ± 0.23 cm, 65.1 ± 18.7 minutes, and 4.4 ± 0.9 days. Stone-free rate was 90.9% after 1 session of PCNL. One patient (4.5%) needed a second-look PCNL. Shock wave lithotripsy was performed for another patient. Postoperative fever occurred in 4 patients (18.2%). One patient received postoperative blood transfusion. Postoperative transient urinoma occurred in 2 patients (9.1%). CONCLUSION: PCNL in pediatric age group via FFMSP was proved to be safe and effective in management of renal pelvis stones of size 2-3 cm. It provides stone clearance rate comparable with that reported of conventional PCNL in the prone position.


Assuntos
Cálculos Renais/cirurgia , Pelve Renal , Nefrostomia Percutânea/métodos , Posicionamento do Paciente/métodos , Decúbito Dorsal , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Nefrostomia Percutânea/efeitos adversos , Estudos Prospectivos
6.
Arab J Urol ; 10(2): 143-8, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26558017

RESUMO

OBJECTIVES: Percutaneous nephrolithotomy (PCNL) is the standard management for large and/or complex urolithiasis, but the standard patient position for PCNL is undecided. With the patient prone PCNL has several drawbacks, while when supine, as described previously, PCNL has mechanical limitations. We describe a modification that aims to overcome these limitations and provide easy access comparable to that in the prone position. PATIENTS AND METHODS: This prospective study was carried out at the Urology Department, Zagazig University, Egypt, from October 2008 to March 2011, and included 78 patients (48 men and 30 women). First the patient was placed supine and then in the 'flank-free modified' supine position. The distance between the last rib and the iliac crest in the posterior axillary line was measured in both positions. RESULTS: The mean age of the patients was 40.8 years, the mean (SD) stone diameter was 3.4 (0.7) cm, the number of right/left stones was 34/44, and mean body mass index was 28.8 kg/m(2). The mean (SD) increase in the distance between the last rib and the iliac crest in the posterior axillary line in the flank free modified supine position vs. the previous supine position was 12 (0.8) mm. CONCLUSION: The flank-free modified supine position increases the distance between the last rib and the iliac crest, and, together with the absence of a cushion under the flank, provides ample space for puncture, dilatation, multiple tracts and manoeuvrability of the system with the nephroscope.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA