RÉSUMÉ
This study aimed to assess seminal androgens, oestradiol, progesterone levels in oligoasthenoteratozoospermic (OAT) men with varicocele (Vx). In all, 154 men with matched age and body mass index were investigated that were divided into healthy fertile controls (n = 35), OAT men with Vx (n = 55), OAT men without Vx (n = 64). They were subjected to assessment of semen parameters, seminal levels of testosterone (T), androstenedione (A), 5α-androstane-3 α,17 ß-diol (3 α-diol), oestradiol (E2 ), 17-hydroxyprogesterone (17-OHP) and progesterone (P). Seminal levels of T and A were significantly decreased where seminal levels of 3 α-diol, E2 , 17-OHP, P were significantly higher in OAT men with/without Vx compared with fertile controls. Sperm count, sperm motility and sperm normal forms percentage demonstrated significant positive correlation with seminal T and A and significant negative correlation with seminal 3 α-diol, E2 , P. It is concluded that in fertile men, seminal T and A are significantly increased and seminal 3 α-diol, E2 , 17-OHP, P are significantly decreased compared with infertile OAT men with/without Vx. Association of Vx demonstrated a nonsignificant influence on these hormonal levels in OAT cases. Sperm count, sperm motility and sperm normal forms demonstrated significant positive correlation with seminal T, A and significant negative correlation with seminal 3 α-diol, E2 , P.
Sujet(s)
Androgènes/métabolisme , Oestradiol/métabolisme , Infertilité masculine/métabolisme , Progestérone/métabolisme , Vésicules séminales/métabolisme , Varicocèle/métabolisme , Humains , Infertilité masculine/complications , Mâle , Varicocèle/complicationsRÉSUMÉ
BACKGROUND/AIMS: Carcinoid tumors of the liver are rare and pose both a diagnostic and therapeutic dilemma. Our aim was to study the diagnosis and treatment of primary hepatic carcinoid and to highlight its incidence in relation to hepatocellular carcinoma in our series and review of literature. METHODOLOGY: Between March 1992 and May 2005, we managed 5 patients (1 male, 4 females) with primary hepatic carcinoid in our center. RESULTS: The main presentation was upper abdominal pain with palpable mass, while in one patient tumor was discovered accidentally, none of them had carcinoid syndrome. The tumors were located in the left lobe in one patient, caudate lobe in two patients and right lobe in two patients. The diagnosis was confirmed histologically with light microscopy and immunohistochemistry. Four patients remain alive and disease free after follow-up of 72, 18, 16, and 4 months. One patient died after 11 years of follow-up with recurrence after 10 years, with mean follow-up of 45.2 +/- 53.1 months in May 2005. CONCLUSIONS: Primary hepatic carcinoid tumor is rare. It occurs on top of non-cirrhotic liver. Hepatic resection even in large-sized tumor is the treatment of choice.
Sujet(s)
Tumeur carcinoïde , Tumeurs du foie , Adulte , Tumeur carcinoïde/diagnostic , Tumeur carcinoïde/chirurgie , Égypte , Femelle , Humains , Tumeurs du foie/diagnostic , Tumeurs du foie/chirurgie , Mâle , Adulte d'âge moyenRÉSUMÉ
PURPOSE: Previous studies demonstrate a positive correlation between postoperative survival and the extent of pelvic lymphadenectomies in patients with bladder cancer. However, the distribution of nodal metastases has not been examined in sufficient detail. Therefore, we conducted a comprehensive prospective analysis of lymph node metastases to obtain precise knowledge about the pattern of lymphatic tumor spread. MATERIALS AND METHODS: Between 1999 and 2002 we performed 290 radical cystectomies and extended lymphadenectomies. Cranial border of the lymphadenectomy was the level of the inferior mesenteric artery, lateral border was the genitofemoral nerve and caudal border was the pelvic floor. We made every effort to excise and examine microscopically all lymph nodes from 12 well-defined anatomical locations. RESULTS: Mean total number and standard deviation of lymph nodes removed was 43.1 +/- 16.1. Nodal metastases were present in 27.9% of patients. The percentage of metastases at different sites ranged from 14.1% (right obturator nodes) to 2.9% (right paracaval nodes above the aortic bifurcation). By studying cases of unilateral primary tumors or with only 1 metastasis we observed a preferred pattern of metastatic spread. However, there were many exceptions to the rule and we did not identify a well-defined sentinel lymph node. CONCLUSIONS: We strongly recommend extended radical lymphadenectomy to all patients undergoing radical cystectomy for bladder cancer to remove all metastatic tumor deposits completely. The operation can be conducted in routine clinical practice and our data may serve as a guideline for future standardization and quality control of the procedure.
Sujet(s)
Carcinomes/chirurgie , Lymphadénectomie , Tumeurs de la vessie urinaire/chirurgie , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Carcinomes/anatomopathologie , Cystectomie , Femelle , Humains , Lymphadénectomie/méthodes , Métastase lymphatique , Mâle , Adulte d'âge moyen , Études prospectives , Tumeurs de la vessie urinaire/anatomopathologieRÉSUMÉ
Objective To define a predictor of prostate cancer in BPH patients with an intermediate PSA (4.1-10 ng/ml) and a negative initial sextant biopsy. Patients and Methods During 1999; 193 BPH patients with an intermediate PSA (4.1-10 ng/ml) underwent TRUS and sextant biopsy. The patients whose initial biopsies were negative for prostate cancer were re-evaluated by serum PSA every 6 months. A total of 76 patients were subjected to an extended 11-core biopsy in view of: (1) PSA velocity ? 1 ng/ml/year; (2) a PSA rise to 10 ng/ml and (3) suspicious biopsy findings (atypical adenomatous hyperplasia or high-grade prostatic intraepithelial neoplasia). Overall; 160 patients were subjected either to TURP (n=127) or open prostatectomy (n=33). Results On initial sextant biopsy; prostate cancer was diagnosed in 22 out of 193 patients (11.4). The specificity of the sextant biopsy was 91.8and its positive predictive value (PPV) was 61.1. A repeat 11-core biopsy revealed prostate cancer in 11 out of 76 patients (14.5). The specificity of the 11-core biopsy was 95.4and its PPV was 78.6. Three cancers out of 160 (2) were discovered on definitive pathology. The PSA velocity cut-off point at 1.4 ng/ml/year and the PSA density cut-off point at 0.12 were optimal for the prediction of cancer using receiver operating characteristic curves. The multivariate analysis (stepwise logistic regression) revealed that PSA density (p=0.011); PSA velocity (p=0.002) and age (p=0.021) were the most significant predictors of cancer when the data were inserted as a continuous format. The sensitivity; specificity and overall accuracy of the model were 80; 98.7and 95.9; respectively. When the data were re-inserted as a coded format; PSA velocity and PSA density were the only predictors. All the analyzed risk factors (age; PSA; DRE; prostate echogenicity and PSA/TZ index) were excluded from the model. Conclusion PSA velocity and PSA density were the most significant predictors of prostate cancer in BPH patients with an intermediate PSA (4.1-10 ng/ml) and a negative initial sextant biopsy
Sujet(s)
Égypte , Analyse multifactorielle , Antigène spécifique de la prostate , Hyperplasie de la prostate , Tumeurs de la prostateRÉSUMÉ
OBJECTIVE: To report on tumour angiogenesis and its relationship with morphological variables and prognosis in adenocarcinoma of the urinary bladder associated with schistosomiasis. PATIENTS AND METHODS: Fifty-five vesical adenocarcinomas were evaluated from 30 men and 25 women (mean age 47.2 years, sd 8.7, range 30-65) who were followed up after radical cystectomy and urinary diversion for a mean (sd, range) of 61 (43.5, 2.7-159.5) months. Vessels were stained immunohistochemically using an antibody to the platelet endothelial cell-adhesion molecule CD31. Microvessels were counted in active areas of angiogenesis within the tumours (at x250) and the microvessel density (MVD) quantified using the mean of three counts. Treatment failure was defined as death from cancer or the development of local recurrence or distant metastasis. Kaplan-Meier survival curves and Cox's proportional hazard model were used to assess survival. RESULTS: The overall 5- and 10-year survival rates were 57% and 51%, respectively. The presence of lymph node metastasis and high mean vascular density (> 26) were significantly associated with a poor prognosis. The 5-year survival for patients with negative lymph nodes was 66% while no patients with positive nodes survived for 5 years (P < 0.001); the survival was 72% for patients with a low MVD and 33% for those with a high MVD (P = 0.0016). From individual results plotted against vascularity in lymph node-negative patients, there was a significantly better outcome for those with a low MVD (< or = 26; P = 0.0099); this significance was maintained on multivariate analysis. However, there was no significant relationship between angiogenesis and the different clinicopathological factors apart from the grade (P = 0.03); tumour stage, grade and DNA profile had no significant effect on survival in these patients. CONCLUSIONS: These findings suggest that assessing angiogenesis using the MVD provides an independent predictor of survival in patients with adenocarcinoma of the urinary bladder.
Sujet(s)
Adénocarcinome/vascularisation , Bilharziose urinaire/anatomopathologie , Tumeurs de la vessie urinaire/vascularisation , Adénocarcinome/parasitologie , Adulte , Sujet âgé , Femelle , Études de suivi , Humains , Immunohistochimie , Métastase lymphatique , Mâle , Adulte d'âge moyen , Néovascularisation pathologique , Pronostic , Études rétrospectives , Analyse de survie , Tumeurs de la vessie urinaire/parasitologieRÉSUMÉ
Objective To determine the incidence of prostatic adenocarcinoma in bilharzial patients who previously underwent radical cystoprostatectomy for bladder tumors. Patients and Methods From February 1997 to February 1999; 249 male patients with bladder cancer were screened for prostate cancer prior to cystectomy using DRE and total PSA assay; as well as transrectal ultrasound-guided prostatic biopsies. Then the cystoprostatectomy specimens were serially sectioned (every 3 mm) and histologically examined. Results Prostatic adenocarcinoma was detected by ultrasound-guided prostatic needle biopsies in 2 cases; while in 18 it was discovered incidentally after cystoprostatectomy (total 20 patients = 8). Gleason score was 6 in 16 patients; 7 in 3 patients and 8 in the remaining patient. Perineural lymphatic permeation was observed in 4 cases and extracapsular extension in one. Conclusion Compared to previous reports on non-bilharzial patients; the incidence of prostate cancer in the cystoprostatectomy specimens of bilharzial patients was low; and the tumors were clinically insignificant in most of the cases
Sujet(s)
Adénocarcinome , Cystectomie , Tumeurs de la vessie urinaireRÉSUMÉ
PURPOSE: We investigated the association of the apoptosis related proteins Bcl-2, Bcl-x, Bax and Bak, p53, the adhesion molecule E-cadherin, the receptor proteins epidermal growth factor receptor and c-erbB-2, and the proliferation markers proliferating cell nuclear antigen and Ki-67 with the clinical outcome of bilharzial related transitional cell carcinoma and squamous cell carcinoma. MATERIALS AND METHODS: Cystectomy specimens from 109 patients with organ confined, muscle invasive stage, pT2pN0M0, bilharziall positive bladder cancer were examined, including 60 with squamous cell carcinoma and 49 with transitional cell carcinoma. Immunohistochemical results were correlated with tumor progression. RESULTS: In squamous cell carcinoma but not in transitional cell carcinoma the loss of epidermal growth factor receptor, Bax and Bak was significantly associated with higher histological grade (p = 0.02, 0.006 and 0.01, respectively). On univariate analysis patients with transitional cell carcinoma had a poorer prognosis than those with squamous cell carcinoma. p53 Over expression and the loss of Bak positivity were associated with shortened progression-free survival in transitional cell carcinoma (p = 0.006 and 0.04, respectively), and squamous cell carcinoma (p = 0.00001 and 0.04, respectively). In squamous cell carcinoma high tumor grade (p = 0.02) and in transitional cell carcinoma high labeling indexes for MIB-1, Bcl-x expression and c-erbB-2 positivity (p = 0.03, 0.02 and 0.04, respectively) were associated with a poorer prognosis. On multivariate analysis p53 emerged as a significant prognostic factor for each condition. Additional independent prognostic factors were proliferating cell nuclear antigen for squamous cell carcinoma, and MIB-1, Bcl-x and Bax for transitional cell carcinoma. CONCLUSIONS: Bilharzial related transitional cell carcinoma and squamous cell carcinoma of the bladder differ in interims of protein expression and prognosis. Independent prognostic factors were p53, MIB-1, Bcl-x, and Bax in the former disease, and p53 and proliferating cell nuclear antigen in the latter disease.
Sujet(s)
Apoptose , Marqueurs biologiques tumoraux/analyse , Carcinome épidermoïde/diagnostic , Carcinome transitionnel/diagnostic , Bilharziose urinaire/complications , Tumeurs de la vessie urinaire/diagnostic , Adulte , Sujet âgé , Antigènes nucléaires , Cadhérines/analyse , Carcinome épidermoïde/complications , Carcinome épidermoïde/anatomopathologie , Carcinome épidermoïde/chirurgie , Carcinome transitionnel/complications , Carcinome transitionnel/anatomopathologie , Carcinome transitionnel/chirurgie , Division cellulaire , Récepteurs ErbB/analyse , Femelle , Humains , Antigène KI-67/analyse , Mâle , Protéines membranaires/analyse , Adulte d'âge moyen , Protéines nucléaires/analyse , Antigène nucléaire de prolifération cellulaire/analyse , Protéines proto-oncogènes/analyse , Protéines proto-oncogènes c-bcl-2/analyse , Récepteur ErbB-2/analyse , Protéine p53 suppresseur de tumeur/analyse , Tumeurs de la vessie urinaire/complications , Tumeurs de la vessie urinaire/anatomopathologie , Tumeurs de la vessie urinaire/chirurgie , Protéine Bak , Protéine Bax , Protéine bcl-XRÉSUMÉ
OBJECTIVE: To retrospectively analyse the long-term outcome of children with bladder and/or prostate rhabdomyosarcoma who were diagnosed at the authors' institution over the last 17 years. PATIENTS AND METHODS: The study comprised 30 children (26 boys and four girls, mean age 5 years, range 15 days to 15 years); 23 had stage III and seven had stage II disease. The initial biopsy showed an embryonal variant in 27 and round-cell sarcoma in three patients. All patients received eight weekly doses of vincristine, actinomycin D and cyclophosphamide (VAC). Subsequent treatment depended upon the response to chemotherapy. RESULTS: Fourteen patients had a complete or partial response to chemotherapy (> 50% reduction in tumour size); they were maintained on VAC chemotherapy for 2 years. Twelve patients in this group survived with no evidence of disease for 7 months to 10 years. Additional therapies were used in three patients, i.e. radical cystectomy in one and external irradiation in two. Sixteen patients had a minimal response to chemotherapy; in six, radical cystectomy was feasible and was followed by one year of chemotherapy. All patients were free of disease for 4-11 years. Radiotherapy was given to the remaining 10 patients; thereafter radical cystectomy became feasible in five while partial cystectomy was possible in three. Only three of these 10 patients survived for 4-11 years. CONCLUSION: The tumour response to initial chemotherapy can be used to stratify patients into two risk-groups, i.e. low-risk patients with a complete or partial response in whom the bladder could be salvaged, and high-risk patients with a minimal response, in whom intensive treatment should be pursued, with no attempt at bladder salvage.
Sujet(s)
Tumeurs de la prostate/thérapie , Rhabdomyosarcome/thérapie , Tumeurs de la vessie urinaire/thérapie , Adolescent , Protocoles de polychimiothérapie antinéoplasique/usage thérapeutique , Enfant , Enfant d'âge préscolaire , Association thérapeutique , Survie sans rechute , Femelle , Humains , Nourrisson , Nouveau-né , Imagerie par résonance magnétique , Mâle , Tumeurs de la prostate/mortalité , Études rétrospectives , Rhabdomyosarcome/mortalité , Tomodensitométrie , Résultat thérapeutique , Tumeurs de la vessie urinaire/mortalitéRÉSUMÉ
OBJECTIVE: To evaluate the effect of patient and tumour characteristics on the disease-free survival after radical cystectomy for infiltrating bladder cancer, and to use these to help in constructing a meaningful prognostic index. METHODS: The disease-free survival was initially evaluated in 1026 patients (the reference series, 1969-1990). A multivariate analysis showed that the tumour P stage, grade and nodal involvement were the only factors which had an independent and significant association with survival. The computed regression coefficients were then used to classify patients into one of four risk categories and the results then validated by applying the model to a prospective test series (1991-1995). RESULTS: The 5-year disease-free survival of both groups was similar. When the results for the risk categories of the reference series were compared with those of the test series, there was no significant difference. CONCLUSION: This comprehensive prognostic model for the results of radical cystectomy was validated and verified in a prospective group of patients. Adjuvant therapies are indicated for patients with a high risk score.
Sujet(s)
Cystectomie/méthodes , Tumeurs de la vessie urinaire/chirurgie , Adulte , Sujet âgé , Cystectomie/mortalité , Survie sans rechute , Femelle , Humains , Mâle , Adulte d'âge moyen , Analyse multifactorielle , Pronostic , Études prospectives , Facteurs de risqueRÉSUMÉ
OBJECTIVES: To evaluate the prognostic value of chromosomal aberrations in muscle invasive bladder cancer, because they are of diagnostic and prognostic significance in superficial bladder cancer. METHODS: One hundred ninety patients, who underwent radical cystectomy because of squamous cell carcinoma (SCC) of the urinary bladder in 94 cases and transitional cell carcinoma (TCC) in 96 cases, were studied retrospectively. Numerical aberrations of chromosomes 7, 9, and 17, p53 positivity, histologic stage and grade, histologic tumor type, lymph node status, and the presence of bilharzial eggs were investigated as possible prognostic factors. RESULTS: Univariate analysis demonstrated the prognostic significance of all parameters analyzed, excluding chromosome 9. Multivariate analysis revealed only T category (P = 0.01095266), lymph node involvement (P = 0.00054877), and p53 positivity (P = 0.0316974) to be independent prognostic factors in muscle invasive SCC and TCC. CONCLUSIONS: Although chromosomal aberrations are associated with progression-free survival, they are not independent prognostic factors and give the clinician no additional information on patients with muscle invasive bladder cancer.
Sujet(s)
Carcinome épidermoïde/génétique , Carcinome transitionnel/génétique , Aberrations des chromosomes/génétique , Tumeurs de la vessie urinaire/génétique , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Carcinome épidermoïde/mortalité , Carcinome épidermoïde/anatomopathologie , Carcinome transitionnel/mortalité , Carcinome transitionnel/anatomopathologie , Femelle , Humains , Mâle , Adulte d'âge moyen , Invasion tumorale , Pronostic , Études rétrospectives , Taux de survie , Tumeurs de la vessie urinaire/mortalité , Tumeurs de la vessie urinaire/anatomopathologieRÉSUMÉ
OBJECTIVE: To evaluate the outcome after the treatment of primary non-urachal vesical adenocarcinoma and to determine the significant prognostic factors. PATIENTS AND METHODS: The records of 185 patients with vesical adenocarcinoma were reviewed. The pathological evaluation included the determination of pathological stage, tumour grade, presence or absence of mucin and its location, evidence of bilharzial infestation and flow-cytometric DNA analysis. The mean follow-up of the treated patients was 3.1 years. Disease-free survival was estimated and the results correlated with patient and tumour characteristics (univariate analysis). Cox's proportional hazards analysis was used to determine prognostic factors. RESULTS: The overall 5-year disease-free survival was 55%; only three factors had a significant impact on survival, the tumour pathological stage and grade, and lymph node involvement. CONCLUSIONS: Radical cystectomy remains the only satisfactory treatment option for primary vesical adenocarcinoma. Tumour stage, grade and lymph node involvement are the only significant prognostic factors.
Sujet(s)
Adénocarcinome/chirurgie , Bilharziose urinaire/complications , Tumeurs de la vessie urinaire/chirurgie , Adénocarcinome/mortalité , Adénocarcinome/parasitologie , Adénocarcinome/anatomopathologie , Cystectomie/méthodes , Survie sans rechute , Égypte , Femelle , Études de suivi , Mortalité hospitalière , Humains , Mâle , Adulte d'âge moyen , Stadification tumorale , Analyse de survie , Résultat thérapeutique , Tumeurs de la vessie urinaire/mortalité , Tumeurs de la vessie urinaire/parasitologie , Tumeurs de la vessie urinaire/anatomopathologie , Dérivation urinaire/méthodesRÉSUMÉ
Our study was done to assess the value of administration of vitamin D to tuberculous children. The study included twenty four newly diagnosed tuberculous children; eleven males and thirteen females. Their age ranged from one and half to thirteen years. Thirteen patients were extra thoracic type of T.B., while only seven were intrathoracic and the rest were mixed. They were randomly divided into two Groups according to the treatment administered: Group A patients were given Rifampicin, Isoniazid and Streptomycin. Group B received in addition vitamin D. After eight weeks therapy, the patients of each group were evaluated regarding clinical, laboratory, and radiological improvement. Vitamin D level is raised after treatment in both Groups A and B, but this rise is not significant. It also showed insignificant difference between the two groups. Vitamin D level showed very high significant decrease in tuberculous children than matched healthy controls (non tuberculous children). Calcium was significantly elevated after treatment in Group A whereas no significant change was detected in Group B. Phosphorous was highly significantly elevated after treatment in Group A, whereas in Group B it is just significantly elevated. Alkaline phosphatase level in both groups A and B were slightly decreased after treatment. However, this decrease was not significant. Clinical improvement was more evident in Group B patients (those taking vitamin D) as compared to Group A patients. The same was noted with X-ray and Sonographic findings. We concluded that vitamin D therapy may be of great value in addition to antituberculous drugs in the treatment of tuberculous children, and its use is highly recommended.
Sujet(s)
Tuberculose/traitement médicamenteux , Vitamine D/usage thérapeutique , Adolescent , Poids , Enfant , Enfant d'âge préscolaire , Association de médicaments , Femelle , Humains , Nourrisson , MâleRÉSUMÉ
PURPOSE: Since squamous cell differs from transitional cell cancer regarding histopathology, clinical outcome and etiology, the underlying genetic effects of these 2 tumor types may also be different. We compared numerical aberrations of chromosomes 7, 9 and 17 in bilharzial squamous cell carcinoma, and bilharzial and nonbilharzial transitional cell carcinoma by fluorescence in situ hybridization, and correlated the findings to p53 positivity of the 3 tumor types. MATERIALS AND METHODS: Cystectomy for invasive bladder cancer was performed in 169 men and 51 women with a mean age of 54.8 years (range 28 to 83). Of the 220 patients 100 (45.4%) had histologically verified bilharzial squamous cell carcinoma, 61 (27.7%) bilharzial transitional cell carcinoma and 59 (26.8%) nonbilharzial transitional cell carcinoma. Using fluorescence in situ hybridization cystectomy specimens were evaluated for numerical aberrations of chromosomes 7, 9 and 17, and p53 detection was performed by immunohistochemistry. RESULTS: Aberrations of chromosome 7 were observed in 79% of the bilharzial squamous cell carcinoma specimens, and 100% and 93.2% of bilharzial and nonbilharzial transitional cell carcinoma specimens, respectively (p = 0.00011). Aberrations of chromosome 9 were seen in 92% of squamous cell carcinoma specimens but in only 52.4% and 60.9% of bilharzial and nonbilharzial transitional cell carcinoma, respectively (p < 0.00001). Aberrations of chromosome 17 were found in only 29% of squamous cell carcinoma specimens, compared to 83.6% and 84.7% aberrations of chromosome 17 in both transitional cell carcinoma groups, respectively (p < 0.00001). The p53 over expression was similar in all 3 tumor types with 82% for squamous cell carcinoma, and 73.7% for bilharzial and 81.3% for nonbilharzial transitional cell carcinoma (not significant, p = 0.5285). CONCLUSIONS: Our data show clear differences between chromosomal patterns of invasive bilharzial squamous cell carcinoma and invasive bilharzial or nonbilharzial transitional cell carcinoma but similar frequencies of p53 over expression in all 3 tumor types. However, aberrations of chromosome 9 were observed in all analyzed groups, which confirms the 2 pathways in the oncogenesis of squamous cell and transitional cell carcinoma at the cytogenetic level as suggested by molecular studies.
Sujet(s)
Carcinome épidermoïde/génétique , Carcinome transitionnel/génétique , Aberrations des chromosomes/génétique , Chromosomes humains de la paire 17/génétique , Chromosomes humains de la paire 7/génétique , Chromosomes humains de la paire 9/génétique , Hybridation fluorescente in situ , Tumeurs de la vessie urinaire/génétique , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Femelle , Gènes p53/génétique , Humains , Mâle , Adulte d'âge moyenRÉSUMÉ
This preliminary study was designed in a trial to delineate the size of the problem of ochratoxicosis and its relation to genesis of lesions mounting to end stage renal disease (ESRD) or urothelial tumors in Egypt. This study comprised five groups of patients having renal diseases of different presentations; they are: patients with (ESRD) under conservative medical treatment (group 1), patients with (ESRD) under treatment with regular hemodialysis (group 2), renal allograft recipients (group 3), patients with nephrotic syndrome (group 4) and patients with urothelial tumors (group 5). In addition, two reference groups: potential related donors for renal transplantation (group 6) and healthy control with negative family history of renal disease (group 7). For all groups, laboratory, radiological and histopathological evaluation of kidney status were carried out coupled with determination of ochratoxin A level in serum, in urine and in biopsy specimens of patients with urothelial tumors. High ochratoxin serum levels were found in patients with ESRD (groups 1 and 2) (P < 0.01), higher serum levels were detected in the group without dialysis (group 1) in comparison with the reference groups possibly due to ochratoxin. A clearance by dialysis. Ochratoxin A was detected in serum and urine of renal transplant recipients (group 3) (P < 0.01) and especially higher levels were found in patients with nephrotic syndrome (group 4) (P < 0.001). For the group with urothelial tumor (group 5), positive serum, urine and tissue biopsy specimens for ochratoxin levels were found (P < 0.01). The results could lead to the conclusion that ochratoxin A could be correlated to the genesis of renal disease leading to (ESRD) or causing urothelial cancer. A thorough and in depth study of the problem of ochratoxicosis and renal disease causation in Egypt is now recommended.
Sujet(s)
Maladies du rein/épidémiologie , Mycotoxicose/épidémiologie , Ochratoxines , Adolescent , Adulte , Sujet âgé , Enfant , Égypte/épidémiologie , Femelle , Humains , Maladies du rein/induit chimiquement , Tests de la fonction rénale , Tumeurs du rein/induit chimiquement , Tumeurs du rein/épidémiologie , Mâle , Adulte d'âge moyen , Ochratoxines/sang , Ochratoxines/urineSujet(s)
Diabète expérimental/chirurgie , Transplantation d'ilots de Langerhans/méthodes , Transplantation d'ilots de Langerhans/physiologie , Transplantation hétérotopique/méthodes , Animaux , Glycémie/métabolisme , Séparation cellulaire , Diabète expérimental/sang , Insuline/sang , Insuline/métabolisme , Sécrétion d'insuline , Ilots pancréatiques/cytologie , Rein , Foie , Mâle , Rats , Rat Sprague-Dawley , Cellules de Sertoli/transplantation , TesticuleSujet(s)
Transplantation rénale , Tumeurs/épidémiologie , Complications postopératoires/épidémiologie , Azathioprine/usage thérapeutique , Ciclosporine/usage thérapeutique , Égypte , Femelle , Survie du greffon , Humains , Immunosuppresseurs/usage thérapeutique , Incidence , Mâle , Adulte d'âge moyen , Récidive , Études rétrospectives , Sarcome de Kaposi/épidémiologie , Tumeurs cutanées/épidémiologieRÉSUMÉ
PURPOSE: We performed a critical analysis of the different prognostic factors affecting survival among patients with carcinoma of the bladder for whom cystectomy was indicated. The different patient and tumor characteristics were correlated to survival data by a univariate as well as multivariate analysis. MATERIALS AND METHODS: Between 1969 and 1990, 764 men and 262 women, average age plus or minus standard deviation 43 +/- 8 years, with invasive carcinoma of the bladder were eligible for 1-stage radical cystectomy and urinary diversion. Patients were followed regularly and examined signs for and location of treatment failure. Followup ranged from 0 to 24.2 years, with a median plus or minus standard deviation of 4.05 +/- 4.16 years. RESULTS: Postoperative mortality was 4%. Most of the patients presented with advanced stage (greater than P3) disease. Squamous tumors accounted for 59% of cases, transitional carcinoma 22% and adenocarcinoma 11%. Bilharzial eggs were seen in 85% of the specimens. Regional lymph nodes were involved in 18.3% of the cases. The 5-year survival rate was 48%. The survival estimate was correlated to patient and tumor characteristics by univariate and multivariate analyses. Only tumor stage and grade, and lymph node status had a significant impact on survival. CONCLUSIONS: Contemporary cystectomy with continent diversion for muscle invasive disease provides minimal morbidity, offers good locoregional disease control and results in acceptable quality of life. The presence of positive regional lymph nodes is not a contraindication to this therapy.
Sujet(s)
Cystectomie , Tumeurs de la vessie urinaire/mortalité , Tumeurs de la vessie urinaire/chirurgie , Adulte , Survie sans rechute , Femelle , Études de suivi , Humains , Mâle , Adulte d'âge moyen , Analyse multifactorielle , Taux de survieRÉSUMÉ
PURPOSE: We performed a prospective, randomized, controlled study to compare intravesical epirubicin and doxorubicin as adjuvant therapy after endoscopic resection of superficial bladder tumor. MATERIALS AND METHODS: We randomly allocated 253 eligible patients to 4 study arms. Seven to 14 days after transurethral bladder tumor resection instillation of the intravesical agent was instituted, including 50 and 80 mg. epirubicin in study arms 1 and 2, respectively, and 50 mg. doxorubicin in arm 3. Control arm 4 included patients who underwent transurethral bladder tumor resection alone. Instillation was repeated weekly for 8 weeks and monthly thereafter to complete 1 year of treatment. All patients were followed every 3 months by cystourethroscopy, urine cytology and deoxyribonucleic acid flow cytometry for 12 to 48 months (mean 30.1). RESULTS: Rates of recurrence were significantly lower in the chemotherapy groups than in controls (p < 0.001) and in the epirubicin groups than in the doxorubicin group (p = 0.02). In arms 1 to 4 recurrence rates were 25, 17.6, 36.7 and 65.6%, respectively. Recurrence rates per 100 patient months were 0.83, 0.60, 1.18 and 2.73, respectively, which were significant statistically, and lower after chemotherapy in general and epirubicin in particular (p < 0.05). Mean interval to first recurrence was 16, 15.4, 18.9 and 6.3 months, respectively, with a significant difference between the chemotherapy and control groups (p < 0.05). Progression to muscle invasive disease occurred in 7 (10.9%), 3 (4.4%), 6 (10%) and 5 patients (8.2%), respectively, in arms 1 to 4 (p > 0.05). We studied the relationships among different risk factors, and patterns of recurrence and progression. For pT1 tumors recurrence rates in arms 1 to 4 were 26.3, 17.8, 39.3 and 70.9%, respectively, which were significantly lower in the chemotherapy group than in controls (p < 0.001) and in the epirubicin groups than in the doxorubicin group (p = 0.01). Toxic and untoward side effects developed in 10 (15.6%), 16 (23.5%) and 25 (41.7%) patients in chemotherapy arms 1 to 3, respectively, with a marginal insignificant difference between low and high dose epirubicin (p = 0.3), and significantly lower toxicity rates in arms 1 and 2 than in 3 (p = 0.002). A contracted bladder developed in 2.1% of all patients who received chemotherapy. CONCLUSIONS: This study demonstrates that epirubicin has better efficacy and lower toxicity than doxorubicin when used as an intravesical agent.