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BACKGROUND: High salt intake is a risk factor for hypertension, which can potentially lead to erectile dysfunction (ED); however, the underlying pathological mechanisms remain unclear. AIM: To investigate whether erectile function is directly impaired by high salt intake and whether selective inhibition of mineralocorticoid receptor (MR) could provide protection from ED. METHODS: 6-week-old male Dahl salt-sensitive rats were randomly divided into 3 groups: normal diet (0.3% NaCl; control, n = 8), high-salt diet (8% NaCl; HS, n = 8), and high-salt diet plus eplerenone (HS + EPL, n = 11). HS + EPL rats were orally administered daily doses of EPL (75 mg/kg) for 6 weeks; control and HS rats received purified water on the same schedule. OUTCOMES: At the end of the study period, erectile function was evaluated by measuring intracavernosal pressure and mean arterial pressure after cavernous nerve stimulation. Serum levels of asymmetric dimethylarginine and L-arginine were determined using ultraperformance liquid chromatography-tandem mass spectrometry. Quantitative PCR was used to assess the expression of MR, inflammation, and oxidative stress markers (nicotinamide adenine dinucleotide phosphate oxidase-1/4, p22phox, interleukin-6, and superoxide dismutase-1), and protein arginine N-methyltransferase-1. RESULTS: The intracavernosal pressure/mean arterial pressure ratio was significantly lower, whereas systolic blood pressure, MR expression, serum asymmetric dimethylarginine levels, oxidative stress, and levels of inflammatory biomarkers were significantly higher in HS rats than in control rats (P < .05). EPL administration significantly improved each of these parameters except systolic blood pressure and MR expression. No significant intergroup differences were observed for L-arginine and superoxide dismutase-1 levels. CLINICAL TRANSLATION: Our results provide a rationale for the need of salt restriction and the use of selective MR inhibitors in prophylaxis or treatment of ED in men consuming a high-salt diet. STRENGTHS & LIMITATIONS: We are the first to report that the adverse impact of high salt intake on erectile function is mediated via MR activation, independent of its effect on blood pressure. A major limitation of this study is that responses of salt-resistant rats were not studied. CONCLUSIONS: High salt intake directly impaired erectile function in Dahl salt-sensitive rats, whereas selective MR inhibition ameliorated this effect. Kishimoto T, Kataoka T, Yamamoto Y, et al. High Salt Intake Impairs Erectile Function in Salt-Sensitive Rats Through Mineralocorticoid Receptor Pathway Beyond Its Effect on Blood Pressure. J Sex Med 2020;17:1280-1287.
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Disfunción Eréctil , Hipertensión , Animales , Presión Sanguínea , Disfunción Eréctil/tratamiento farmacológico , Disfunción Eréctil/etiología , Humanos , Hipertensión/inducido químicamente , Hipertensión/tratamiento farmacológico , Masculino , Ratas , Ratas Endogámicas Dahl , Receptores de Mineralocorticoides , Cloruro de Sodio , Cloruro de Sodio Dietético/efectos adversosRESUMEN
(Objectives) Surgical treatment prostate cancer in elderly patients is controversial. However, robot-assisted radical prostatectomy (RARP) is a less invasive procedure than conventional surgery. Therefore, we perform RARP for elderly patients whose general condition is good (Performance status ≤1). The aim of this study is to evaluate surgical, oncological and functional outcomes for RARP in men age 75 and older. (Patients and methods) From July 2013 to April 2016, 300 patients underwent RARP at our institution. They were divided into two groups: an older patient group (≥75 years) and a younger patient group (<75 years). Treatment outcomes for each group, including surgical, oncological and functional outcomes, were compared. (Results) There were no statistically significant differences in surgical outcomes with the exception of nerve sparing rates (older patients: 5.9% vs. younger patients: 17.7%, P=0.0192). Importantly, intra- and postoperative complication rates were similar in both groups (minor complication: 7.4% vs. 3.9%, P=0.322, major complication: 0.0% vs. 2.2%, P=0.592). Regarding oncological outcomes, including positive surgical margin rate and PSA failure (PSA>0.2 ng/ml) at 12 months after surgery, no significant differences existed. Lastly, functional outcomes between the groups, including continence (≤1 pads/day) at 12 months after surgery, had no significant differences. (Conclusions) Our data suggests that RARP can be performed safely for men age 75 and older, and can become a good option for older patients with prostate cancer.
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Prostatectomía/métodos , Neoplasias de la Próstata/cirugía , Procedimientos Quirúrgicos Robotizados/métodos , Factores de Edad , Anciano , Anciano de 80 o más Años , Humanos , Masculino , Estadificación de Neoplasias , Tratamientos Conservadores del Órgano , Próstata/inervación , Neoplasias de la Próstata/patología , Estudios Retrospectivos , Factores de Tiempo , Resultado del TratamientoRESUMEN
In the present report, we describe a patient with microcystic variant of urothelial carcinoma in urinary bladder. In March 2016, a 71-year-old man presented with bladder tumors found incidentally by ultrasonography. Cystoscopy and contrast-enhanced computed tomography (CT) revealed multiple invasive tumor of posterior wall, with a maximum diameter of 33 mm. Transurethral resection (TUR) of bladder tumors was performed. Pathological diagnosis was urothelial carcinoma, high grade, T2 or more. Invasive urothelial carcinoma was diagnosed and laparoscopic radical cystectomy with orthotopic neobladder was performed accordingly in April 2016. Pathological findings indicated a diagnosis of microcystic variant of urothelial carcinoma. At present, six months after surgery, the patient remains free of recurrence and metastasis. Here we review the characteristics of 4 microcystic variant of urothelial carcinoma cases reported in Japan.
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OBJECTIVE: ⢠To evaluate virtual cavernoscopy as a diagnostic tool in erectile dysfunction. PATIENTS AND METHODS: ⢠Forty patients who visited our hospital for investigation of erectile dysfunction underwent cavernosography using three-dimensional (3D)-computed tomography (CT). ⢠Virtual cavernoscopic images were reconstructed from 3D-CT data. RESULTS: ⢠Virtual cavernoscopic images were obtained from all patients. ⢠Virtual cavernoscopy visualized the corpus cavernosal lumen surrounded by the tunica albuginea, the septum of the cavernosum, the outlets of the veins, and cavernous arteries. ⢠The visualization of each structure depended on the window level (WL). At WL 400, the virtual cavernoscopy visualized only a fibrous structure. At this WL, the internal view of the corpus cavernosum was expressed as a hollow space. At WL 1600, the virtual cavernoscopy visualized the cavernous artery as a filling defect. ⢠Out of 80 lumens in the 40 subjects, arteries in 14 lumens were detected by both virtual cavernoscopy and CT angiography, while arteries in 50 lumens were detected only by virtual cavernoscopy. Arteries in two lumens could not be visualized by either method and those in 14 lumens were visualized only by CT angiography. CONCLUSION: ⢠In visualizing the artery, conventional imaging techniques depend on blood flow, whereas using virtual cavernoscopy an artery can be visualized independently of blood flow. Virtual cavernoscopy is unique in this regard and we therefore believe that this new imaging technology will contribute to better ED practice.
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Angiografía/métodos , Disfunción Eréctil/diagnóstico por imagen , Imagenología Tridimensional/métodos , Pene , Tomografía Computarizada por Rayos X/métodos , Adolescente , Adulto , Anciano , Arterias , Humanos , Masculino , Persona de Mediana Edad , Pene/irrigación sanguínea , Pene/diagnóstico por imagen , Interfaz Usuario-Computador , Adulto JovenRESUMEN
OBJECTIVE: ⢠To examine the feasibility of three-dimensional (3D) CT cavernosography in the diagnosis of corporal veno-occlusive dysfunction. PATIENTS AND METHODS: ⢠The subjects were 55 patients who had failed to respond to phosphodiesterase type 5 inhibitors. We performed pharmacodynamic infusion cavernosometry and cavernosography, using 60 mg papaverine hydrochloride. ⢠Cavernosography was performed at 90 mmHg intracavernous pressure, using a multi-slice CT scan system. The 3D images were reconstructed using aquarius net station, ver.2 computer software. ⢠For comparison with conventional cavernosography, maximum intensity projection (MIP) images were used. A flow of 20 mL/min or being more capable of maintaining 90 mmHg of intracavernous pressure indicated veno-occlusive dysfunction. RESULTS: ⢠Forty-five of the 55 patients were diagnosed with corporal veno-occlusive dysfunction. 3D-CT cavernosography revealed drainage veins in all 45 cases, including cavernous veins, dorsal veins, crural veins and other emissary veins. ⢠Compared with 3D-CT cavernosography, observing cavernous veins and the proximal part of the deep dorsal veins using MIP imaging was especially difficult because the origins of the penile veins are often behind the pelvic bone or cavernous body. ⢠Of the patients who seemingly had leakage via the deep dorsal vein, 80.6% did not in fact have leakage via this vein, but had other leakages. The image resolution of 3D-CT cavernosography was significantly higher than that of MIP. CONCLUSION: ⢠3D-CT cavernosography can provide high-resolution images of venous drainage from any angle. We conclude that the images obtained by 3D-CT cavernosography are very helpful for both the diagnosis of corporal veno-occlusive dysfunction and the anatomical study of the human penile venous system.
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Impotencia Vasculogénica/diagnóstico por imagen , Pene/irrigación sanguínea , Pene/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Adolescente , Adulto , Anciano , Estudios de Factibilidad , Humanos , Impotencia Vasculogénica/etiología , Impotencia Vasculogénica/cirugía , Ligadura , Masculino , Persona de Mediana Edad , Pene/cirugía , Inhibidores de Fosfodiesterasa 5/uso terapéutico , Flujo Sanguíneo Regional , Adulto JovenRESUMEN
The accumulating effects of exposure to electromagnetic radiation emitted by a conventional mobile phone (standby position) on the testicular function and structure are not yet fully investigated. To study these effects longitudinally, a total of 24 adult male rabbits were randomly and equally divided into three groups. Rabbits in the first (phone) group were exposed, in specially designed cages, to radio frequency emitted from the mobile phone (800 MHz) in a standby position opposite to that of testes for 8 h daily for 12 weeks. The second group consisted of the stress controls which were kept in the same kind of cages to appreciate any cage-induced anxiety. The third group included the ordinary controls which were kept in the conventional roomy cages. Semen analysis and sperm function tests (viability, hypo-osmotic swelling and acridine orange) were conducted weekly. Histological testicular sections and serum total testosterone were also evaluated. A drop in the sperm concentration appeared in the phone group at week 6. This became statistically significant at week 8, compared with the two control (stress and ordinary) groups (133, 339 and 356 x 106/mL, respectively) and to the initial sperm count (341 x 106/mL) of this group. Motile sperm population showed similarity amongst the three study groups until week 10 when it declined significantly, and thereafter in the phone and stress control groups, with more significant decline in the phone animals (50, 61 and 72.4%, respectively). Histological examination showed also a significant decrease in the diameter of seminiferous tubules in the phone group vs. the stress and ordinary controls (191 microm vs. 206 and 226 microm, respectively). The other study points did not show any difference. In conclusion, low intensity pulsed radio frequency emitted by a conventional mobile phone kept in the standby position could affect the testicular function and structure in the adult rabbit.
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Teléfono Celular/instrumentación , Ondas de Radio/efectos adversos , Testículo/fisiología , Testículo/efectos de la radiación , Animales , Exposición a Riesgos Ambientales , Fertilidad , Masculino , Conejos , Radiación , Distribución Aleatoria , Túbulos Seminíferos/patología , Recuento de Espermatozoides , Espermatozoides/efectos de la radiación , TeléfonoRESUMEN
OBJECTIVES: To review the results of a low transscrotal orchidopexy in patients with palpable undescended testes located distal to the external inguinal ring. METHODS: Between July 1998 and June 2005, transscrotal orchidopexy with a single low scrotal incision was performed in 32 patients for 49 undescended testes. The indication was an undescended testis that lay distal to the external ring and could be pulled down manually into the scrotum under general anesthesia. RESULTS: All testes that were treated with the low transscrotal approach were successfully fixed in the middle or lower portion of the scrotum. The mean operative time was significantly shorter for the low transscrotal orchidopexy (45.2 min) than for the inguinal orchidopexy (66.6 min) for 107 undescended testes at similar locations. The median follow-up duration was 39.1 months; all testes except 1 (97.7%) were located in a good position within the scrotum and had a good consistency; 1 testis ascended postoperatively and required inguinal orchidopexy. No inguinal hernias or hydroceles occurred after the surgery. CONCLUSIONS: Low transscrotal orchidopexy appears to be an excellent alternative to the standard inguinal orchidopexy for undescended testes located distal to the external inguinal ring.
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Criptorquidismo/cirugía , Escroto/cirugía , Procedimientos Quirúrgicos Urológicos Masculinos/métodos , Niño , Preescolar , Humanos , Lactante , Masculino , Factores de Tiempo , Resultado del Tratamiento , Procedimientos Quirúrgicos Urológicos Masculinos/efectos adversosRESUMEN
OBJECTIVES: To compare perioperative outcome of transperitoneal and retroperitoneal approaches during laparoscopic radical nephrectomy (LRN) and to identify selection criteria for each approach. METHODS: Over a 7-year period, 100 consecutive patients (median age 62 years, range 20-80) underwent LRN for a renal tumor with clinical stage T1a-T3a. The first choice approach was retroperitoneal. The transperitoneal approach was chosen in selected cases based on tumor characteristics. Thirty-three patients underwent the transperitoneal approach, and 67 had the retroperitoneal approach. Perioperative parameters including operative time, blood loss and complications and pathology data were retrospectively analyzed. RESULTS: Overall, 33 transperitoneal laparoscopic radical nephrectomies (TLRN) and 67 retroperitoneal laparoscopic radical nephrectomies (RLRN) were carried out. There was a statistically significant difference between the two groups in terms of size (5.3 vs 3.0 cm, P < 0.0001) and clinical T stage (higher in the TLRN group, P < 0.0001) of the tumors. Intraoperative complications included bradycardia, pneumothorax, renal vein injury, and renal artery injury in the TLRN group, and pneumothorax in the RLRN group. There were no differences in terms of operative time, blood loss and tumor grade between the two groups. CONCLUSIONS: Retroperitoneal and transperitoneal approaches yielded excellent surgical outcomes. The transperitoneal approach should be chosen based on tumor size and location to minimize vascular injury.
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Neoplasias Renales/patología , Neoplasias Renales/cirugía , Laparoscopía/métodos , Invasividad Neoplásica/patología , Nefrectomía/métodos , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Laparoscopía/efectos adversos , Masculino , Persona de Mediana Edad , Nefrectomía/efectos adversos , Selección de Paciente , Peritoneo/cirugía , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/fisiopatología , Probabilidad , Espacio Retroperitoneal/cirugía , Estudios Retrospectivos , Medición de Riesgo , Sensibilidad y Especificidad , Factores Sexuales , Resultado del Tratamiento , Adulto JovenRESUMEN
Between January 1996 and December 2007, 111 patients with prostate cancer underwent radical prostatectomy, including 34 who received preoperative hormonal therapy. In this study, we reviewed 77 patients who did not undergo neoadjuvant hormonal therapy. The mean age was 65.5 years old and followup time was 40.7 months. The clinical stage was T1c in 60 patients, T2 in 16, and T3 in 1. Prostate specific antigen (PSA) at diagnosis ranged from 3.44 to 46.08 ng/ml (mean 10.18). At our institution, PSA failure after surgery was defined as PSA elevation above 0.2 ng/ml. The pathological stage was pT2 in 59 patients, pT3a in 11, pT3b in 7 and pN + (obturator lymph node) in none. The surgical margin was positive in 29.3% of the pT2 patients and 68.8% of the pT3 patients. Sixteen patients (20.8%) had PSA failure. PSA values at diagnosis and pathological T stage were significantly relevant to PSA failure. Patients with PSA failure underwent radiation therapy or hormonal therapy as a salvage adjuvant therapy. The PSA level was controlled well in majority of the patients. Only one patient died of cancer. In conclusion, 33 out of 111 patients who underwent radical prostatectomy had PSA failure. Sixteen of the 77 patients who were not given neoadjuvant therapy had PSA failure. The significant factors related to PSA failure were PSA values at diagnosis and pathological T stage.
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Biomarcadores de Tumor/sangre , Antígeno Prostático Específico/sangre , Prostatectomía , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/cirugía , Anciano , Humanos , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante , Estadificación de Neoplasias , Neoplasias de la Próstata/sangre , Neoplasias de la Próstata/patología , Terapia Recuperativa , Insuficiencia del TratamientoRESUMEN
A 40-year-old woman was referred to our hospital because of pain extending from the left lateral abdomen to the left inferior limb. The abdominal computed tomography (CT) revealed an 8x7x12 cm retroperitoneal serous cystic mass. The serum carcinoembryogenic antigen (CEA) level was slightly elevated to 2.7 ng/ml. Therefore, we suspected it to be malignant, and we performed laparoscopic resection carefully. The retroperitoneal cyst was not adherent to the surrounding tissues and was easily dissected and removed under laparoscopy. Carbohydrale antigen (CA)19-9, CA125 and CEA levels in the fluid were elevated, but a cytology of the fluid was negative and no malignant sign was seen in the cyst wall. To our knowledge, this is the second reported case of retroperitoneal serous cyst resected by laparoscopic surgery in the Japanese literature.
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Quistes/cirugía , Laparoscopía , Adulto , Antígenos de Carbohidratos Asociados a Tumores/sangre , Antígeno Carcinoembrionario/sangre , Quistes/diagnóstico , Diagnóstico Diferencial , Femenino , Humanos , Espacio RetroperitonealRESUMEN
A 41 year-old man with a history of diabetes mellitus underwent computed tomography for screening on August 2007. The CT revealed an enhancing 3.0 cm mass in the middle pole of the left kidney. We diagnosed as renal cancer, clinical stage T1aN0M0. Then he underwent laparoscopic left partial nephrectomy. The pathological result was renal cell carcinoma, G2 > G1, pT1a. On post operative day 12, he appeared a gross hematuria and dysuria, then he was rehospitalized due to drop of hemoglobin and bladder tamponade. Enhanced CT showed left renal artery pseudoaneurysm. He underwent selective coil embolization of left renal artery pseudoaneurysm. After that he repeated gross hematuria, and appeared bladder tamponade again. On POD 65 he underwent selective coil embolization again. Since then the patient recovered uneventfully.
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Aneurisma Falso , Nefrectomía , Complicaciones Posoperatorias/terapia , Arteria Renal , Adulto , Aneurisma Falso/diagnóstico por imagen , Aneurisma Falso/terapia , Carcinoma de Células Renales/cirugía , Embolización Terapéutica , Humanos , Neoplasias Renales/cirugía , Laparoscopía , Masculino , Complicaciones Posoperatorias/diagnóstico por imagen , Tomografía Computarizada por Rayos XRESUMEN
OBJECTIVE: To investigate the relationship between variations of the pelvic artery arrangement and the age at erectile dysfunction (ED) onset, as some men develop ED while relatively young, while others maintain erectile function into old age despite having cardiovascular diseases, thus congenital factors might be involved. PATIENTS AND METHODS: We examined 290 units of internal iliac arteries (IIA) in 145 patients showing repeated incomplete erectile response to intracavernosal injections with prostaglandin E(1). Patients with cardiovascular risk factors, neurological disease or pelvic injury were excluded. The pelvic artery arrangement, evaluated by three-dimensional computed tomographic angiography, was classified anatomically into five types: Type 1 (normal or basic type), in which the internal pudendal artery (IPA) originates from the anterior trunk at the level between the linea terminalis and the major ischial notch; Type 2, the IPA originates from the anterior trunk of the IIA at the level of the major ischial notch or more distally; Type 3, the IPA originates directly from the IIA at a level proximal to the linea terminalis; Type 4, the IPA originates together with the superior and inferior gluteal artery within 1 cm of each other; and Type 5, the penile blood supply is dependent on arteries other than the IPA, such as the obturator artery. RESULTS: Among the 290 units, eight could not be classified due to poor image quality. There were no statistically significant differences in blood flow parameters among the types of IIAs, but there was a statistically significant difference in the IPA type at the age of onset of ED. Type 1 (153 units or 53%) anatomy, was more common in patients who developed ED at an advanced age. Types 2, 3 and 4 were more common in patients with onset of ED at an early age (log-rank test P < 0.001, P = 0.044, P < 0.001, respectively). Compared with patients with the common type of IIAs bilaterally, patients with any of the variations bilaterally are at risk of early onset of ED (log-rank test: P = 0.002). CONCLUSION: In these anatomical studies, nearly half of all internal artery units are variations in type. Congenital factors might contribute to the development of ED. If a man has bilateral variation from the common type (Type 1), he might develop ED approximately 10 years earlier than those who are identical in every way except for their IPA (Type 1) arrangements.
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Impotencia Vasculogénica/etiología , Pene/irrigación sanguínea , Adulto , Edad de Inicio , Anciano , Anciano de 80 o más Años , Arterias/anomalías , Humanos , Impotencia Vasculogénica/diagnóstico por imagen , Japón , Masculino , Persona de Mediana Edad , Pene/fisiopatología , Estudios Retrospectivos , Tomografía Computarizada por Rayos XRESUMEN
OBJECTIVE: To clarify the physiological effects of aldosterone on human penile corpus cavernosum (hPCC) tissue, as aldosterone has a wider physiological action than just the maintenance of electrolyte balance, and there are mineralocorticoid receptors, i.e. aldosterone receptors, in hPCC tissue. MATERIALS AND METHODS: Specimens of hPCC were obtained from 10 patients (mean age 38 years, range 21-75), with informed consent and approval by the local ethics committee. One patient had a penectomy because of penile cancer, and nine had a penile biopsy because of erectile dysfunction. Patients with diabetes mellitus, hypertension or ischaemic heart disease were excluded. In a pharmacological study we evaluated the effect of aldosterone on the isolated hPCC tissues. RESULTS: Aldosterone caused no significant change in resting tension and did not affect the nitric oxide-dependent relaxation reaction. However, the dose-response curve of noradrenaline was shifted to the left when the strip preparation was treated with aldosterone (1 x 10(-5)M) for 20 min before administering noradrenaline. Moreover, the shift to the left was completely blocked when spironolactone (anti-aldosterone agent) was added as a pre-treatment. Pre-treatment with aldosterone also significantly extended the mean (SEM) time required to reach 50% relaxation of a noradrenaline-induced contraction, of 9.3 (1.5) min, vs the control, of 5.2 (1.0) min (P = 0.002). CONCLUSION: Aldosterone has no direct contractile action or a relaxant action on human penile cavernous tissue, but acts to significantly enhance the noradrenaline-induced contraction. The effect on the noradrenaline-induced contraction is probably caused by aldosterone enhancing the affinity of the alpha-receptors for noradrenaline in hPCC. We suggest that aldosterone acts to enhance contraction of hPCC tissue, and is one of the restraining factors for human penile erection.
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Aldosterona/fisiología , Contracción Muscular/fisiología , Músculo Liso/fisiología , Pene/fisiología , Adulto , Anciano , Aldosterona/farmacología , Humanos , Técnicas In Vitro , Masculino , Persona de Mediana Edad , Antagonistas de Receptores de Mineralocorticoides/farmacología , Contracción Muscular/efectos de los fármacos , Relajación Muscular/efectos de los fármacos , Relajación Muscular/fisiología , Músculo Liso/efectos de los fármacos , Norepinefrina/fisiología , Erección Peniana/efectos de los fármacos , Erección Peniana/fisiología , Pene/efectos de los fármacos , Fentolamina/farmacología , Espironolactona/farmacologíaRESUMEN
No adequate serum predictive biomarker currently exists, which can identify the activity of renal cell carcinoma (RCC). We investigate the association of serum hepatocyte growth factor (HGF) and serum vascular endothelial growth factor (VEGF) levels with clinicopathologic parameters in untreated clear cell RCC patients. We measured serum levels of HGF and VEGF in 45 patients with untreated clear cell RCC and 45 healthy controls using an enzyme-linked immunosorbent assay (ELISA). Patients with clear cell RCC had significantly higher serum HGF and VEGF concentrations than healthy subjects: median, 1070.7 versus 728.3 pg/ml (p<0.0001) for HGF; and median, 397.5 versus 245.6 pg/ml (p=0.0003) for VEGF. We found a significant correlation between serum level of HGF and clinical stage and tumor grade. Survival of patients with high serum HGF (>1150 pg/ml) was significantly reduced compared to patients with low serum HGF concentrations (p=0.0044). In patients with nuclear grade 2 or high stage RCC, the higher serum HGF group exhibited significantly lower cause-specific survival (p=0.0087 and p< 0.05, respectively). No significant difference was observed between serum VEGF levels and cause-specific survival rate. Serum HGF might be a diagnostic and prognostic indicator in clear cell RCC, especially for patients with grade 2 or high stage RCC.
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Biomarcadores de Tumor/sangre , Carcinoma de Células Renales/diagnóstico , Factor de Crecimiento de Hepatocito/sangre , Neoplasias Renales/diagnóstico , Factor A de Crecimiento Endotelial Vascular/sangre , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Renales/patología , Ensayo de Inmunoadsorción Enzimática , Femenino , Humanos , Neoplasias Renales/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , PronósticoRESUMEN
From May, 1999 to August, 2006, we performed laparoscopic diagnosis and treatment for 103 cases of impalpable testes. Among those we found 5 cases of male pseudohermaphroditism of different etiologies. Three males presented by impalpable testes with ambiguous genitalia and 2 females presented by primary amenorrhea. All of them have 46-XY normal male chromosomal pattern. In the first 3 cases, the etiology was complete gonadal dysgenesis, and 2 cases with persistent Mullerian syndrome. Timed gonadectomy for the first case and laparoscopic orchiopexy for the other 2 cases were performed. For the other 2 female cases, the etiology was complete androgen insensitivity syndrome and laparoscopic bilateral orchiectomy was performed for both of them. All the procedures were done without complications with satisfactory results.
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Trastornos del Desarrollo Sexual/cirugía , Adulto , Síndrome de Resistencia Androgénica/complicaciones , Niño , Preescolar , Constricción Patológica/complicaciones , Trastornos del Desarrollo Sexual/diagnóstico , Trastornos del Desarrollo Sexual/etiología , Trastornos del Desarrollo Sexual/genética , Femenino , Disgenesia Gonadal/complicaciones , Gónadas/cirugía , Humanos , Laparoscopía , Masculino , Conductos Paramesonéfricos/patología , Resultado del TratamientoRESUMEN
PURPOSE: We analyzed patterns of tumor distribution in radical prostatectomy specimens from patients with repeat biopsies to determine additional appropriate biopsy locations for repeat biopsy. METHODS: Between January 2000 and June 2005, a total of 382 patients underwent transrectal ultrasound-guided prostate biopsy. Of these, 47 patients underwent repeat biopsy. Radical prostatectomy was performed for 7 of 22 cancer-positive cases. The 7 specimens were superimposed to create an idealized prostate gland at 3 levels: apex, mid-prostate, and base. We compared these tumor maps with those from 35 initial biopsy positive patients. RESULTS: Prostate cancer was detected in 22 of 47 patients who underwent repeat biopsy. Tumor mapping showed that tumors detected on repeat biopsy in comparison with tumor maps of initial biopsy were dense at the periurethral area of the apex in prostate. CONCLUSIONS: Additional biopsy cores taken from periurethral area of the apex on repeat biopsy might further enhance the detection of cancers.
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Próstata/patología , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/cirugía , Biopsia con Aguja , Predicción , Humanos , Masculino , Antígeno Prostático Específico/sangre , Prostatectomía , ReoperaciónRESUMEN
AIM: We evaluated the safety and efficacy of laparoscopic nephropexy for symptomatic nephrotosis. PATIENTS AND METHODS: Between May 2000 and December 2005, 6 women (mean age, 43.1 years) underwent laparoscopic nephropexy of 8 kidneys (6 right, 2 left). Mean body mass index was 19.6 kg/m(2). Two patients displayed ureteropelvic junction obstruction (UPJO). Preoperative evaluation was performed by intravenous urography (IVU) and isotope renography in both the supine and erect positions. Four patients (6 renal units) underwent retroperitoneoscopic nephropexy, with a dismembered pyeloplasty in 1 patient (1 renal unit). The transperitoneal approach was performed in 2 patients, the first case and another with UPJO due to an aberrant vessel. The kidney was mobilized, then fixed to the back muscles with nonabsorbable sutures. RESULTS: Mean operative time was 139.4 minutes (range, 95-200), and mean blood loss was 30 mL (range, 10-60). No perioperative complications were encountered. Mean hospital stay was 6.4 days. Postoperative IVU and isotope renography correctly confirmed a fixed kidney and no obstruction in the UPJO cases. All patients reported a symptomatic improvement during follow-up (range, 11-81 months). CONCLUSIONS: As pain is the presenting symptom in these cases, a laparoscopic approach seems to represent the gold standard for treatment owing to low morbidity and good cosmetic results.
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Riñón/anomalías , Riñón/cirugía , Laparoscopía/métodos , Procedimientos Quirúrgicos Urológicos/métodos , Adolescente , Adulto , Anciano , Femenino , Humanos , Persona de Mediana EdadRESUMEN
With the development of extracorporeal shock wave lithotripsy (ESWL), improved endourologic instrumentation, and medical dissolution therapy, the need for open ureterolithotomy has become less common. Open operation is occasionally necessary when less invasive techniques fail. As in many of the surgical specialties, laparoscopy has become more common in urologic surgery. We recently experienced three cases of ureteral stones, which were treated by laparoscopic ureterolithotomy. The stones were all large and impacted stones. The patients were a 73-year-old man and two 34-year-old men. All procedures were performed by a retroperitoneal approach. We used Roticulator endo mini-shears resourcefully, when we incised the ureteral wall. After surgery, all three patients were stone-free, and hydronephrosis was improved.
Asunto(s)
Laparoscopía , Cálculos Ureterales/cirugía , Adulto , Anciano , Humanos , Masculino , UréterRESUMEN
Intravesical Bacillus Calmette-Guerin (BCG) therapy is commonly used against superficial urothelial carcinoma, especially carcinoma in situ (CIS). We report a case of tuberculous epididymitis that occurred during a course of intravesical BCG therapy. A 76-year-old man had received intravesical BCG therapy for multiple superficial bladder cancer and CIS in prostatic urethra after transurethral resection of bladder tumor (TUR-Bt). He recognized hard nodules in the left scrotum after 4 times intravesical BCG therapy. Skin fistula in scrotum occurred 5 months later. We performed left orchiectomy with scrotum skin resection. Histological diagnosis was tuberculous epididymitis. Postoperatively, he was administered chemotherapy consisting of isoniazid, refampin and ethambutol.
Asunto(s)
Vacuna BCG/administración & dosificación , Vacuna BCG/efectos adversos , Epidídimo , Tuberculosis de los Genitales Masculinos/etiología , Administración Intravesical , Anciano , Antituberculosos/administración & dosificación , Carcinoma in Situ/terapia , Cistectomía , Humanos , Masculino , Orquiectomía , Tuberculosis de los Genitales Masculinos/patología , Tuberculosis de los Genitales Masculinos/terapia , Neoplasias de la Vejiga Urinaria/terapiaRESUMEN
A 56-year-old man was diagnosed with a right testicular tumor. Orchiectomy with high ligation of the spermatic cord was performed. Histological examination revealed leiomyosarcoma of the spermatic cord. Distant metastases were not found. The patient was treated with adjuvant radiation therapy to control the disease, since a high incidence of local recurrence has been reported. The patient had no evidence of disease 24 months postoperatively.