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1.
Int Urol Nephrol ; 2024 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-38918284

RESUMEN

INTRODUCTION: This study evaluates the effectiveness of the Estimation of Physiologic Ability and Surgical Stress (E-PASS) scoring system in predicting postoperative complications following radical cystectomy (RC). MATERIALS AND METHODS: In this single-center retrospective study, we analyzed data from patients who underwent open RC for muscle-invasive bladder cancer by a single surgeon between 2008 and 2023. Cases involving cystectomy for non-urothelial carcinoma or urinary diversion other than ileal conduit were excluded. We recorded patient demographics, body mass index (BMI), history of abdominal/retroperitoneal surgery, ASA score, performance status (PS), and pre-existing conditions, such as hypertension (HT), coronary artery disease (CAD), diabetes mellitus (DM), and chronic kidney disease (CKD). Intraoperative data included surgery duration, blood loss, and need for blood transfusion. Post-operative complications were classified using the Clavien-Dindo system. E-PASS score was calculated using the Preoperative Risk Score (PRS), Surgical Stress Score (SSS), and Comprehensive Risk Score (CRS). RESULTS: The study included 252 patients. Patients who experienced postoperative complications had higher age, BMI, prior surgical history, ASA score, PS, and rates of CAD, HT, DM, and CKD compared to those who did not. Surgery duration, blood loss, blood transfusion requirement, and E-PASS scores (PRS, SSS, CRS) were also higher in this group. The ROC curve for CRS revealed a predictive cutoff of 0.4911 (AUC = 0.905, p < 0.001). Independent risk factors for postoperative complications included high BMI (p = 0.031), longer surgery duration (p < 0.001), HT (p = 0.042), CKD (p = 0.017), and CRS > 0.4911 (p < 0.001). CONCLUSION: E-PASS system effectively predicts postoperative complications in RC patients.

2.
Cent European J Urol ; 65(2): 98-9, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-24578941

RESUMEN

We report a rare case of inflammatory pseudotumor of the prostate revealed on suprapubic prostatectomy. A 70-year-old man presented with nocturia, urgency and difficulty in voiding. The histopathological examination of the suprapubic adenomectomy specimen reported fibromyxoid pseudosarcomatous tumor (inflammatory prostatic pseudotumor). It is important to take this benign lesion under consideration to avoid unnecessary aggressive radical complementary treatments.

3.
Urol Int ; 79(2): 187-8, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17851293

RESUMEN

A case of gossypiboma (retained surgical sponge) is described which caused ureteroappendiceal fistula 4 years after an open right ureterolithotomy operation. The patient was treated by removal of the retained sponges, appendectomy and ureteral stent insertion.


Asunto(s)
Enfermedades del Ciego/etiología , Cuerpos Extraños/complicaciones , Fístula Intestinal/etiología , Enfermedades Ureterales/etiología , Fístula Urinaria/etiología , Procedimientos Quirúrgicos Urológicos/efectos adversos , Absceso Abdominal/etiología , Absceso Abdominal/cirugía , Adulto , Apendicectomía , Apéndice , Enfermedades del Ciego/cirugía , Humanos , Fístula Intestinal/cirugía , Masculino , Enfermedades Ureterales/cirugía , Ureterolitiasis/cirugía , Fístula Urinaria/cirugía
4.
Mikrobiyol Bul ; 40(3): 275-8, 2006 Jul.
Artículo en Turco | MEDLINE | ID: mdl-17001859

RESUMEN

In this report an acute brucellosis case presenting with the symptoms of urinary tract infection (UTI) has been discussed. A 29 years old male patient was admitted to the emergency service of our hospital with the complaints of acute UTI. His complaints were persisting for five days before admission. His physical examination was normal but there were fever (39 degrees C) and costovertebral angle tenderness. His medical history revealed that multiple stones in the lower pole of the right kidney and paranchyme loss were detected by IVP two years ago. The bacteria that were isolated from blood and urine cultures were identified as Brucella melitensis by conventional methods. Rose Bengal test was found positive, and standard tube agglutination test was positive at a titer of 1/640. The patient was treated with oral ciprofloxacin (1000 mg/day) and rifampicin (600 mg/day) combination for six weeks. The aim of this presentation was to draw attention to this uncommon condition, as UTI symptoms are not the first symptoms of acute brucellosis. UTI symptoms should be carefully considered as a presentation of brucellosis especially in regions where brucellosis is endemic.


Asunto(s)
Brucella melitensis/aislamiento & purificación , Brucelosis/diagnóstico , Infecciones Urinarias/diagnóstico , Enfermedad Aguda , Adulto , Antiinfecciosos/uso terapéutico , Brucella melitensis/clasificación , Brucelosis/tratamiento farmacológico , Ciprofloxacina/uso terapéutico , Humanos , Masculino , Rifampin/uso terapéutico , Infecciones Urinarias/tratamiento farmacológico , Infecciones Urinarias/microbiología
5.
Urology ; 67(6): 1290.e15-7, 2006 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-16750251

RESUMEN

Isolated hydatid disease of the kidney is a rare condition that can be challenging to diagnose. We describe a case in which isolated renal hydatid disease obstructed the ureteropelvic junction, resulting in hydronephrosis and complete destruction of the renal parenchyma.


Asunto(s)
Equinococosis/complicaciones , Hidronefrosis/etiología , Enfermedades Renales/complicaciones , Enfermedades Renales/parasitología , Pelvis Renal , Obstrucción Ureteral/etiología , Humanos , Masculino , Persona de Mediana Edad
6.
Urol Int ; 76(1): 42-50, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16401920

RESUMEN

INTRODUCTION: This study was undertaken to investigate the effects of two different alpha(1)-adrenergic blockers on bladder hypertrophy using ultrasound-estimated bladder weight (UEBW) and to assess the relation between changes in UEBW and other objective and subjective parameters of disease severity in patients with benign prostatic hyperplasia (BPH). MATERIALS AND METHODS: 41 men were enrolled in the study and they were subjected to either watchful waiting (group 1) or alpha(1)-adrenergic receptor blocker therapy (group 2 with alfuzosin; group 3 with tamsulosin). The patients were investigated by symptom evaluation using the International Prostate Symptom Score (IPSS) and quality of life score (QOL), uroflowmetry and UEBW. The parameters were assessed again 3 months after initiation of treatment and compared with the initial values. RESULTS: While the mean UEBW increased in group 1 (42.2 +/- 10.3 to 52.5 +/- 12.2 g), it decreased in both the other groups that received alpha-blocker therapy (61.3 +/- 18.7 to 41.1 +/- 13.2 and 59.4 +/- 17.2 to 43.5 +/- 17.6 g, respectively). In groups 2 and 3, the mean UEBW, post-void residual urine, IPSS and QOL values decreased, and the mean maximum flow rate increased. All of the changes in group 2 and all except QOL in group 3 were statistically significant (p < 0.05). The changes correlated well with each other with regard to treatment success. The highest decreases in UEBW were encountered in patients with heavier bladders. CONCLUSIONS: UEBW decreases with alpha(1)-adrenergic receptor blockers. When used together with the other objective and subjective parameters, UEBW is a promising quantitative parameter as a follow-up tool and can be useful in monitoring the therapeutic effects of alpha(1)-adrenergic receptor blockers.


Asunto(s)
Antagonistas de Receptores Adrenérgicos alfa 1 , Antagonistas Adrenérgicos alfa/farmacología , Antagonistas Adrenérgicos alfa/uso terapéutico , Hiperplasia Prostática/tratamiento farmacológico , Quinazolinas/farmacología , Quinazolinas/uso terapéutico , Sulfonamidas/farmacología , Sulfonamidas/uso terapéutico , Vejiga Urinaria/efectos de los fármacos , Vejiga Urinaria/patología , Anciano , Humanos , Hipertrofia , Masculino , Persona de Mediana Edad , Tamaño de los Órganos/efectos de los fármacos , Tamsulosina , Ultrasonografía , Vejiga Urinaria/diagnóstico por imagen
7.
Int Braz J Urol ; 31(3): 264-8, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-15992432

RESUMEN

INTRODUCTION: The traditional delayed treatment of iatrogenic complete ureteral obstruction is open surgery. An easy endourological technique, transluminal re-canalization of the ureter by guide-wire puncture under fluoro-endoscopic control, which has been performed on 4 patients, is described. SURGICAL TECHNIQUE: With the guidance of C-arm fluoroscopy, by moving the C-arm to different planes, the tip of the ureteroscope is directed to the correct plane to meet the obliterated proximal end of the ureter and under direct vision, transluminal puncture is performed using the stiff end of a 0.035-inch guide wire. Once the stiff end of the guide-wire is in the lumen of the proximal ureter, an ureteral catheter is introduced over the guide wire, the guide wire is then removed and reinserted through the ureteral catheter with its soft end leading and a double J catheter is inserted. Ureteral stricture, if later encountered, is treated with balloon dilatation. RESULTS: Continuity of the ureter was restored in all 4 patients. The double J stents were removed 6 weeks later and a retrograde pyelography revealed resolution of the hydronephrosis without extravasation of urine. CONCLUSION: Although a very satisfactory result was achieved in our cases, more cases are needed to show if it can be an alternative to conventional surgical repair. However, we believe that this minimally invasive technique can be used for short obliterated ureteral segments and neither delays nor does it preclude further management using open surgery.


Asunto(s)
Cateterismo/métodos , Punciones/métodos , Obstrucción Ureteral/terapia , Adulto , Fluoroscopía , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Stents , Resultado del Tratamiento , Ureteroscopía
8.
Urology ; 65(6): 1244-8, 2005 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15922417

RESUMEN

OBJECTIVES: To assess the possible role of apoptosis in reflux-related renal scarring by investigating how sterile vesicoureteral reflux affects apoptosis of glomerular and tubular cells in the rat kidney. METHODS: Twenty-nine rats were assigned to one of three groups: group 1, reflux (n = 10); group 2, sham surgery (n = 9); and group 3, controls (n = 10). All rats underwent bilateral nephrectomy 42 days later. Terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labeling was used to detect the apoptotic cells, and separate apoptotic index values for glomerular cells (GCAI) and tubular cells (TCAI) were calculated in each kidney (left and right from each animal). RESULTS: The mean TCAI value in the left kidney from groups 1, 2, and 3 was 0.86% +/- 0.26%, 1.20% +/- 0.18%, and 1.19% +/- 0.14%, respectively. The corresponding TCAI values for the right kidneys were 0.77% +/- 0.21%, 1.10% +/- 0.34%, and 1.06% +/- 0.15%. The mean GCAI value in the left kidney from groups 1, 2, and 3 was 0.26% +/- 0.14%, 0.28% +/- 0.08%, and 0.20% +/- 0.10%, respectively. The corresponding GCAI values for the right kidneys were 0.23% +/- 0.06%, 0.26% +/- 0.06%, and 0.22% +/- 0.12%. Analysis revealed no significant differences among the groups with respect to GCAI in the left kidneys (P = 0.258) or right kidneys (P = 0.618). The mean TCAI values in group 1 were significantly lower than the corresponding values in groups 2 and 3 for the left (P = 0.001) and right (P = 0.012) kidneys. CONCLUSIONS: This is the first study to have shown that sterile vesicoureteral reflux decreases apoptosis in tubular cells in rat kidneys with vesicoureteral reflux.


Asunto(s)
Apoptosis , Túbulos Renales/patología , Reflujo Vesicoureteral/patología , Animales , Cicatriz/etiología , Cicatriz/patología , Femenino , Glomérulos Renales/patología , Ratas , Ratas Sprague-Dawley
9.
Int. braz. j. urol ; 31(3): 264-268, May-June 2005. ilus
Artículo en Inglés | LILACS | ID: lil-411104

RESUMEN

INTRODUCTION: The traditional delayed treatment of iatrogenic complete ureteral obstruction is open surgery. An easy endourological technique, transluminal re-canalization of the ureter by guide-wire puncture under fluoro-endoscopic control, which has been performed on 4 patients, is described. SURGICAL TECHNIQUE: With the guidance of C-arm fluoroscopy, by moving the C-arm to different planes, the tip of the ureteroscope is directed to the correct plane to meet the obliterated proximal end of the ureter and under direct vision, transluminal puncture is performed using the stiff end of a 0.035-inch guide wire. Once the stiff end of the guide-wire is in the lumen of the proximal ureter, an ureteral catheter is introduced over the guide wire, the guide wire is then removed and reinserted through the ureteral catheter with its soft end leading and a double J catheter is inserted. Ureteral stricture, if later encountered, is treated with balloon dilatation. RESULTS: Continuity of the ureter was restored in all 4 patients. The double J stents were removed 6 weeks later and a retrograde pyelography revealed resolution of the hydronephrosis without extravasation of urine. CONCLUSION: Although a very satisfactory result was achieved in our cases, more cases are needed to show if it can be an alternative to conventional surgical repair. However, we believe that this minimally invasive technique can be used for short obliterated ureteral segments and neither delays nor does it preclude further management using open surgery.


Asunto(s)
Adulto , Humanos , Persona de Mediana Edad , /métodos , Punciones/métodos , Obstrucción Ureteral/terapia , Fluoroscopía , Estudios de Seguimiento , Stents , Resultado del Tratamiento , Ureteroscopía
10.
Urol Int ; 74(4): 337-40, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-15897700

RESUMEN

OBJECTIVE: This study sought to investigate whether ischemia-induced prostate damage during cardiac surgery involving cardiopulmonary bypass causes bladder outlet obstruction. MATERIALS AND METHODS: The study involved 37 men who underwent elective cardiac surgery involving cardiopulmonary bypass. Prostate-specific antigen (PSA) levels were determined preoperatively (baseline) and on postoperative days 1, 5, and 30. In 4 cases, the PSA level after the operation was unchanged from the preoperative level, so these 4 men were excluded from the study. In the remaining 33 patients, symptoms of bladder outlet obstruction were assessed using the International Prostate Symptom Score. Each subject completed this test preoperatively and 3, 6 and 9 months postoperatively, and the means scores at these time points were compared. The effects of patient age, operative time, CPB time, and aortic clamping time on postoperative increases in PSA levels were investigated. RESULTS: Thirty-three (89.2%) of the 37 men exhibited increased postoperative PSA levels compared to baseline. The mean PSA level for the 33 cases on day 5 was significantly higher than the baseline mean, but the mean levels on postoperative days 1 and 30 were comparable to baseline. Nine (24.3%) of the 33 men had postoperative PSA levels greater than 4.0 ng/dl (the upper normal limit). There was no significant difference between preoperative and postoperative International Prostate Symptom Scores. CONCLUSION: The study indicates that men's PSA levels are, indeed, increased after cardiac surgery with cardiopulmonary bypass. However, in 9 months of follow-up, there was no association between this PSA rise and development of BOO, according to International Prostate Symptom Scores.


Asunto(s)
Puente Cardiopulmonar/efectos adversos , Isquemia/etiología , Próstata/irrigación sanguínea , Obstrucción del Cuello de la Vejiga Urinaria/etiología , Anciano , Humanos , Masculino , Persona de Mediana Edad , Antígeno Prostático Específico/sangre , Cirugía Torácica/métodos , Obstrucción del Cuello de la Vejiga Urinaria/sangre
11.
Int J Urol ; 12(3): 319-21, 2005 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-15828965

RESUMEN

Adenosquamous carcinoma of the prostate is an unusual histological variant of prostate cancer. The histogenesis of this tumor remains uncertain. The stimulus for the development of the squamous metaplastic cells had been thought to be related to hormone and/or radiation therapy. This report presents a case of adenosquamous carcinoma of the prostate with abscence of previous hormone or radiation therapy. The case showed negative prostate-specific antigen and high molecular weight cytokeratin staining of the adenocarcinoma component, and negative prostate-specific antigen and positive high molecular weight cytokeratin staining of the squamous cell carcinoma component. The adenocarcinoma component stained intraluminally with periodic acid schiff. The staining features and the distinct localizations of the components with intermingling, but no transition, are against the collision-type tumor theory and support the theory that the adenocarcinoma and squamous components arise de novo from pluripotent stem cells. The patient had a rapid downhill clinical course and died 3 weeks after the diagnosis was made.


Asunto(s)
Carcinoma Adenoescamoso/diagnóstico , Neoplasias de la Próstata/diagnóstico , Resultado Fatal , Humanos , Masculino , Persona de Mediana Edad
12.
Urol Int ; 74(2): 108-12; discussion 113, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-15756060

RESUMEN

INTRODUCTION: To demonstrate the relationship between testicular microlithiasis and testicular tumor development. PATIENTS AND METHODS: Between January 1996 and March 2004, bilateral testicular microlithiasis was found in 40 of the 5,263 patients who underwent scrotal ultrasonography yielding a prevalence of 0.76%. Of the 40 patients, 4 patients with concomitant testicular tumors were excluded from the study. The remaining 36 patients were enrolled into the study and followed by ultrasonography at 6-month intervals. RESULTS: Patient ages ranged between 1 and 69 years (mean 31 +/- 14 years). The median ultrasonography follow-up was 34 months (range, 1-96). Testicular tumor development was not observed in any of these 36 patients during the follow-up period. CONCLUSIONS: Extensive evaluation including computerized tomography, testicular tumor markers and testicular biopsy of patients with testicular microlithiasis is unnecessary and also increases patient anxiety. Yet annual ultrasonography and physical examination should be performed if ever until testicular microlithiasis is completely accepted as a nonpremalignant disease.


Asunto(s)
Cálculos/complicaciones , Enfermedades Testiculares/complicaciones , Neoplasias Testiculares/etiología , Adolescente , Adulto , Anciano , Niño , Preescolar , Estudios de Seguimiento , Humanos , Lactante , Masculino , Persona de Mediana Edad , Estudios Prospectivos
14.
J Urol ; 172(6 Pt 1): 2475-8, 2004 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-15538294

RESUMEN

PURPOSE: We investigated the presence of p53 expression and apoptosis in an experimental model of varicocele in the rat. MATERIALS AND METHODS: A total of 30 adult male Sprague-Dawley rats were studied in 3 groups, namely group 1-13 with varicocele, group 2-9 with sham operation and group 3-8 controls. All animals underwent orchiectomy after 30 days and sections of the left testis from each animal were studied. TUNEL was used to detect apoptotic germ cells and an apoptotic index (AI) was calculated for each testis specimen. p53 expression was determined immunohistochemically and graded according to the proportion of cells stained in each specimen. RESULTS: AI values in group 1 testes were 0% to 0.51% (mean 0.06% +/- 0.13%) and the corresponding range in group 2 was 0.04% to 0.69% (mean 0.25 +/- 0.21%). No group 3 control specimens showed TUNEL staining (AI 0% in all). Although the mean AI in group 1 was higher than that in controls, this difference was not statistically significant (p = 0.318). The mean AI value in group 2 was significantly higher than in the control group (p = 0.021) but it was comparable to that in group 1 (p = 0.099). Seven (53.8%) and 2 (22.2%) specimens in groups 1 and 2, respectively, showed p53 staining in germ cell nuclei. None of the specimens in group 3 showed nuclear p53 expression. The grade of p53 expression in group 1 was significantly higher than that in groups 2 (p = 0.042) and 3 (p = 0.011). Expression grades in groups 2 and 3 were not significantly different (p = 0.426). CONCLUSIONS: To our knowledge p53 expression that may reflect abnormal spermatogenesis has been documented for the first time in an experimental model of varicocele in the rat testis. In contrast to other investigations, no link between apoptosis and varicocele was detected.


Asunto(s)
Apoptosis/genética , Expresión Génica , Genes p53/genética , Testículo , Varicocele/genética , Animales , Masculino , Ratas , Ratas Sprague-Dawley
15.
Urol Int ; 73(3): 266-9, 2004.
Artículo en Inglés | MEDLINE | ID: mdl-15539849

RESUMEN

INTRODUCTION: We aimed at evaluating the outcomes of transurethral prostatectomy and inguinal hernia repair performed in a single session. PATIENTS AND METHODS: Fifty-six patients (mean age 68+/-8.3 years) in whom transurethral prostatectomy was performed combined with an inguinal hernia repair were included into the study. Type of anesthesia, technique of inguinal hernia repair, hospitalization time, and the complications encountered were recorded. Cost comparisons were made using the official price-lists of the Turkish Medical Association. All patients were asked whether they were satisfied with the outcome of both operations performed in one session. The data obtained from the patients who underwent both operations in one session were compared with those obtained from 56 patients who underwent transurethral prostatectomy only (control group). Statistical analysis was performed using the chi-square test corrected for continuity according to the Yates or the Fisher exact test. RESULTS: The operations were performed in 19 patients under general, in 20 patients under epidural, and in 14 patients under spinal anesthesia. Three patients were given general anesthesia and spinal anesthesia combined. In 6 patients bilateral and in 50 patients unilateral hernia repair was performed. In 11 repairs, polyprolene mesh grafts were utilized; in 2 repairs, a laparoscopic method was used, and in the remaining 49 repairs, one of the conventional techniques (McVay, Bassini, or Shouldice) was employed. There were no significant differences with regard to early and late postoperative complications and satisfaction between study group and control group (p>0.05). Combined prostatectomy and hernia repair allows approximately 30% cost profit. CONCLUSIONS: Performing transurethral prostatectomy and inguinal hernia repair in one session decreased the number of the operations and anesthesias, hospital stay, and thus health costs and did not cause an increase in operative and postoperative morbidity.


Asunto(s)
Hernia Inguinal/cirugía , Hiperplasia Prostática/cirugía , Resección Transuretral de la Próstata , Anciano , Costos y Análisis de Costo , Hernia Inguinal/complicaciones , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Hiperplasia Prostática/complicaciones , Estudios Retrospectivos , Resultado del Tratamiento
16.
Urology ; 64(4): 643-6; discussion 646-7, 2004 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15491688

RESUMEN

OBJECTIVES: To compare the success and complication rates in the treatment of ureteral stones with a 7.5F versus a 10F ureteroscope. METHODS: A total of 100 patients who were scheduled for ureteroscopy to treat ureteral calculi between December 2000 and December 2002 were randomly assigned to procedures with a 7.5F (group 1; n = 50) or 10F (group 2; n = 50) ureteroscope. The group results were compared. RESULTS: Group 1 had 36 distal, 9 middle, and 5 proximal ureteral stones. Group 2 had 37 distal, 6 middle, and 7 proximal ureteral stones. No statistically significant differences were noted between the two groups with respect to the mean stone size or operation time (P = 0.175 and P = 0.636, respectively). Pneumatic lithotripsy was used in 62% and 50% of the procedures in group 1 and 2, respectively, and stones or fragments were retrieved with basket catheters in 92% and 76% of the group procedures, respectively. The difference between the group rates for successful basket catheter extraction was statistically significant (P = 0.029). Of the patients in group 1 and 2, 84% and 80%, respectively, were stone free after a single procedure (P = 0.603). The corresponding failure rates in the two groups were 6% and 12% (P = 0.295), and the corresponding early and late complication rates in the two groups were 6% and 4% (P = 0.646). None of the patients in group 1 developed late complications. One individual (2%) in group 2 developed ureteral stenosis during long-term follow-up (P = 0.315). CONCLUSIONS: The success and failure rates revealed better outcomes for treatment of ureteral calculi with a 7.5F ureteroscope, but the differences were not statistically significant. The complication rates were similar between the two groups. Basket catheters were used more frequently with the 7.5F scope, and the rates of in situ lithotripsy and postoperative ureteral stent placement were also greater in patients treated with this instrument.


Asunto(s)
Cálculos Ureterales/cirugía , Ureteroscopios , Adulto , Constricción Patológica , Diseño de Equipo , Femenino , Humanos , Litotricia , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/etiología , Stents , Resultado del Tratamiento , Cálculos Ureterales/diagnóstico por imagen , Cálculos Ureterales/terapia , Enfermedades Ureterales/etiología , Ureteroscopios/clasificación , Ureteroscopía , Urografía
17.
J Androl ; 25(5): 752-6, 2004.
Artículo en Inglés | MEDLINE | ID: mdl-15292106

RESUMEN

The aims of this study were to determine the incidence rates of genital calcification in male hemodialysis patients based on ultrasonography findings and to identify risk factors for this condition. Twenty-three male end-stage renal disease (ESRD) patients (mean age, 51.4 +/- 12.1 years) who were on maintenance hemodialysis underwent penile and scrotal ultrasonography. For each case, we recorded the underlying renal disease and measured serum levels of phosphorus, intact parathormone, and calcium x phosphorus product. Patients were also questioned about erectile dysfunction. The control group consisted of 22 consecutive patients (mean age, 51 years) with type 2 diabetes mellitus with normal renal function who underwent penile and scrotal ultrasonography for various reasons. In the ESRD group, ultrasound revealed calcification of the tunica albuginea of the corpora cavernosa in 15 patients (65%) and calcification of the epididymis in 16 patients (70%; 14 bilateral and 2 unilateral cases). Twenty patients (87%) showed calcification of the epididymis and/or the tunica, and 10 (43%) showed calcification of both these tissues. The rates of epididymal and penile calcification in the ESRD patients and the controls were significantly different (P <.001 for both). There were no significant differences between patients with and without penile and epididymal calcification with respect to age, hemodialysis duration, frequencies of elevated serum phosphorus, elevated serum intact parathormone, elevated calcium x phosphorus product, and frequency of erectile dysfunction (ED) (P >.05 for all). Ultrasonography revealed high rates of penile (tunica albuginea of the corpora cavernosa) and epididymal calcification (65% and 70%, respectively) in the ESRD patients studied, but no association was found between risk factors such as age, underlying renal disease, hemodialysis duration, frequencies of elevated serum phosphorus, elevated serum intact parathormone, and elevated calcium x phosphorus product.


Asunto(s)
Calcinosis/etiología , Epidídimo/patología , Pene/patología , Diálisis Renal/efectos adversos , Adulto , Anciano , Calcio/sangre , Epidídimo/diagnóstico por imagen , Disfunción Eréctil/etiología , Humanos , Fallo Renal Crónico/terapia , Masculino , Persona de Mediana Edad , Hormona Paratiroidea/sangre , Pene/diagnóstico por imagen , Fósforo/sangre , Ultrasonografía
18.
J Urol ; 172(3): 1188-91, 2004 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-15311067

RESUMEN

PURPOSE: In this study we investigated hypoxia inducible factor-1alpha (HIF-1alpha) and vascular endothelial growth factor (VEGF) expression, and angiogenesis in an experimental model of varicocele in the rat testis. MATERIALS AND METHODS: A total of 30 adult male Sprague-Dawley rats were investigated in 3 groups, namely varicocele group 1 (13), sham operated group 2 (9) and control group 3 (8). At 30 days after surgery was completed in groups 1 and 2 orchiectomy was performed in all rats. Histological findings in the left testicles of rats from each group were compared. HIF-1alpha and VEGF expression was immunohistochemically studied and CD31 panendothelial antigen was used to identify the number of microvessels, that is microvessel density (MVD), in paraffin embedded sections of testis tissue. Data were analyzed using the chi-square test, Fisher's exact test, 1-way ANOVA and the Tukey HSD test for post hoc comparison. RESULTS: HIF-1alpha expression was detected in 12 specimens (92.3%) in group 1, 4 (44.4%) in group 2 and 2 (25%) in group 3. The frequency of HIF-1alpha positivity in group 1 was significantly higher than the rates in groups 2 (p = 0.023) and 3 (p = 0.003). VEGF expression was detected in 8 specimens (61.5%) in group 1 but none of the group 2 or 3 specimens were VEGF positive. The frequency of VEGF positivity in group 1 was significantly higher than that in groups 2 (p = 0.006) and 3 (p = 0.007). Mean MVD +/- SD in group 1 was 7.53 +/- 1.50 (range 6 to 12), and findings in groups 2 and 3 were 5.88+/-1.45 (range 4 to 8) and 5.12 +/-1.12 (range 4 to 7), respectively. Mean MVD in group 2 was higher than in group 3 but this difference was not significant (p = 0.509). Mean MVD in group 1 was significantly higher than the mean values in groups 2 (p = 0.030) and 3 (p = 0.002). CONCLUSIONS: Previous study of experimental varicocele models in rats documented HIF-1alpha and VEGF expression combined with angiogenesis in the testis. The results of this study show that varicocele can lead to tissue hypoxia and related pathophysiological events, such as angiogenesis.


Asunto(s)
Proteínas de Unión al ADN/metabolismo , Neovascularización Patológica , Proteínas Nucleares/metabolismo , Testículo/irrigación sanguínea , Testículo/metabolismo , Factores de Transcripción/metabolismo , Varicocele/fisiopatología , Factor A de Crecimiento Endotelial Vascular/metabolismo , Animales , Factor 1 Inducible por Hipoxia , Subunidad alfa del Factor 1 Inducible por Hipoxia , Inmunohistoquímica , Masculino , Microcirculación , Molécula-1 de Adhesión Celular Endotelial de Plaqueta/análisis , Ratas , Ratas Sprague-Dawley , Varicocele/metabolismo
19.
Int J Urol ; 11(7): 576-7, 2004 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15242375

RESUMEN

The rare clinical occurrence of the spontaneous passage of bullet which was not found during an operation after a gunshot wound to the bladder in a 28-year-old man is described.


Asunto(s)
Migración de Cuerpo Extraño , Uretra , Heridas por Arma de Fuego , Adulto , Humanos , Masculino
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