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2.
Urology ; 42(6): 725-8, 1993 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-8256408

RESUMO

We report a case of extensive upper ureteral loss due to a missile injury managed by delayed renal autotransplantation and ureteropyelostomy using the residual lower ureteral segment. The successful outcome attests to the value of this therapeutic strategy in severe traumatic injuries to the ureter secondary to bullet or shrapnel fragments.


Assuntos
Pelve Renal/cirurgia , Transplante de Rim , Ureter/lesões , Ureter/cirurgia , Ureterostomia , Ferimentos por Arma de Fogo/cirurgia , Humanos , Masculino , Estomia , Fatores de Tempo
3.
Fertil Steril ; 64(1): 179-84, 1995 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-7789555

RESUMO

OBJECTIVE: To create an alloplastic spermatocele capable of repeated sperm aspiration. The alloplastic spermatocele has long been a theoretical solution to infertility for those patients with congenital absence of the vas deferens or irreversible obstruction of the male reproductive ductal system. Recent studies have suggested that sperm from efferent ducts are capable of fertilization. Clinical use of alloplastic spermatoceles for collection of epididymal sperm has resulted in unacceptably low pregnancy rates. Improvement in spermatocele function may occur if a microsurgical anastomosis is performed to the epididymis. DESIGN: A newly designed alloplastic spermatocele was implanted in 17 mature male rabbits. The faceplate of the device had a 0.7-mm orifice, allowing direct precise microsurgical anastomosis to a specific loop of the epididymal tubule. RESULTS: Sperm retrieval was possible in 16/17 (94%) animals. Repeated successful aspirations (total of 73) were performed in all but one animal. The total number of sperm collected per spermatocele averaged 115 x 10(6) (range 0 to 734 x 10(6)). The sperm motility varied widely between animals and specimens, with a maximum average of 21.6% motile sperm/aspirate per animal. All spermatoceles eventually occluded (mean time of occlusion 14 days; range 3 to 30 days). The prostheses with the attached epididymides were examined histologically. CONCLUSIONS: This prototype alloplastic spermatocele allows repeated high density sperm retrieval over a short period of time. Low sperm motility may be less problematic clinically as new techniques of IVF become available.


Assuntos
Inalação , Próteses e Implantes , Manejo de Espécimes/instrumentação , Manejo de Espécimes/métodos , Espermatozoides , Animais , Desenho de Equipamento , Estudos de Avaliação como Assunto , Masculino , Plásticos , Coelhos
4.
Can J Urol ; 8(3): 1290-2, 2001 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-11423017

RESUMO

INTRODUCTION: The traditional criteria for selecting suitability of male patients with bladder cancer for othtopic neobladder substitution includes: patient motivation, negative transurethral (TUR) prostate biopsy prior to cystectomy, and/or tumor-free biopsy of the urethral margin at the time of cystectomy. In this report we evaluate the value of these preoperative and intraoperative biopsies in the cystoscopically normal prostatic urethra. METHODS: During a 5-year period, cystectomies were performed on 54 men and 13 women with invasive bladder cancer. Prior to this procedure, all of the men had TUR biopsy of the prostate. Forty men with cystoscopically normal prostatic fossa had negative prostatic biopsies, and. had orthotopic neobladder substitution. RESULTS: Pathological examination showed that 3 out of these 40 men had transitional cell carcinoma (TCC) involving the prostate. In all 40 patients, the prostatic apical resection margin was negative. To date, none of the patients developed urethro-neobladder recurrence. CONCLUSION: TUR biopsy of the prostatic urethra prior to cystectomy, or biopsy of the prostatic urethral margin at the time of cystectomy in patients with cystoscopically normal, tumor free prostatic urethra has limited value in selecting candidates for orthotopic neobladder substitution.


Assuntos
Cistoscopia , Cuidados Pré-Operatórios , Próstata/patologia , Uretra/patologia , Neoplasias da Bexiga Urinária/cirurgia , Coletores de Urina , Adulto , Idoso , Biópsia , Feminino , Secções Congeladas , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias da Bexiga Urinária/patologia
5.
J Med Liban ; 42(2): 59-62, 1994.
Artigo em Inglês | MEDLINE | ID: mdl-7616555

RESUMO

Varicoceles have been shown to be detrimental to spermatogenesis and to cause male infertility. Patients with infertility referred for spermatic vein Doppler ultrasound evaluation were studied prospectively to correlate the findings on physical examination and those on Doppler ultrasound evaluation. Twelve out of thirty-four spermatic veins (35%) with no evidence of varicocele on physical examination were found to have definite reflux on Doppler ultrasound examination, while all the unoperated spermatic veins with clinically evident varicoceles had reflux on Doppler ultrasound examination. In the absence of newer methods of diagnosis like high resolution real-time scrotal ultrasonography or scrotal colour Doppler duplex ultrasonography, our results support the use of Doppler ultrasound to detect subclinical varicoceles in patients with infertility but we do not recommend its use in patients with clinically evident varicoceles.


Assuntos
Cordão Espermático/irrigação sanguínea , Ultrassonografia Doppler , Varicocele/diagnóstico por imagem , Humanos , Infertilidade Masculina/diagnóstico por imagem , Masculino , Oligospermia/diagnóstico por imagem , Exame Físico , Estudos Prospectivos , Fluxo Sanguíneo Regional , Escroto/diagnóstico por imagem , Ultrassonografia Doppler em Cores , Ultrassonografia Doppler Dupla , Manobra de Valsalva , Veias/diagnóstico por imagem
6.
J Med Liban ; 48(2): 59-62, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-11028151

RESUMO

INTRODUCTION AND OBJECTIVES: The percentage of free over total prostate specific antigen (%F/T PSA) seems to enhance the predictive value of PSA in diagnosing prostate cancer. We evaluated the value of F/T PSA in 50 consecutive patients who underwent prostate needle biopsy, its relationship to the Gleason score and number of positive cores. MATERIAL AND METHODS: 50 patients underwent prostate needle biopsy for abnormal PSA and/or abnormal digital rectal examination (DRE). There were 8 patients with PSA equal or less than 4 ng/ml, 6 with F/T PSA < 20%, group I (GI). 27 patients with PSA between 4.1 ng/ml and 10.0 ng/ml, 20 with F/T PSA < 20%, group II (GII) and 15 patients with PSA > 10.1 ng/ml (13 with F/T PSA < 20%), group III (GIII). At least six needle biopsies were obtained guided by transrectal ultrasound selectively or randomly. Pathological evaluation included Gleason grade and number of cores involved. RESULTS: 21/50 patients (42%) had positive biopsies, 3/8 in GI, 8/27 in GII (6 had negative DRE) and 10/15 in GIII (9 had positive DRE). 19/21 patients with positive biopsies had F/T PSA < 20%. The sensitivity, specificity and positive predictive value of PSA between 4-10 ng/ml and F/T PSA < 20% was 87.5%, 31% and 35% respectively. Stratifying patients with positive biopsies to F/T PSA < 10%, F/T PSA > 10% and the three PSA groups, there was no relationship to either Gleason score or number of positive cores. CONCLUSION: With a cutoff of 20%, F/T PSA seems to be an important parameter in selecting patients with abnormal PSA for biopsy. It will be helpful mostly with PSA 4-10 ng/ml. No relationship was observed between the level of F/T PSA, grade or number of positive cores.


Assuntos
Antígeno Prostático Específico/sangue , Próstata/patologia , Neoplasias da Próstata/diagnóstico , Adulto , Idoso , Biópsia por Agulha , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Neoplasias da Próstata/patologia
8.
Mol Reprod Dev ; 27(4): 332-6, 1990 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-2264995

RESUMO

Spermatozoa from the caput epididymis are known to be much less capable of fertilization when compared to sperm from more distal segments of the epididymis. The purpose of this study was to determine if two micromanipulative techniques, zona drilling (ZD) and a modification of partial zona dissection (PZD), could be used to enhance fertilization with caput epididymal sperm. A mouse in vitro fertilization model was used. Inseminating oocytes with 500-1,000 sperm/oocyte from the cauda epididymis as a control resulted in fertilization of 98 of 300 (32.6%) oocytes. Of those fertilized, 47 developed to the blastocyst stage (47.9%). Caput sperm fertilized 13 of 116 (11.2%) nonmanipulated oocytes. Only 1 of 13 developed into a blastocyst, while with oocyte ZD, caput sperm fertilized 24 of 144 (16.7%) oocytes, 50% of those fertilized developing to blastocyst (P = 0.0129). When modified PZD was performed on oocytes, only one of 23 was fertilized, with no blastocyst development. These results indicate that acid Tyrode ZD enhances both fertilization and early embryonal development when caput epididymal sperm are used for insemination. These mouse studies suggest that ZD or other micromanipulation techniques may prove clinically useful in men with proximal epididymal obstruction where only caput sperm are available.


Assuntos
Epididimo/fisiologia , Fertilização in vitro , Espermatozoides/fisiologia , Zona Pelúcida/fisiologia , Animais , Epididimo/ultraestrutura , Feminino , Masculino , Camundongos
9.
Ann Plast Surg ; 36(3): 325-9, 1996 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-8659961

RESUMO

The bacille Calmette-Guérin vaccine has been used widely for several decades in tuberculosis prophylaxis. More recently, it has been used therapeutically in the management of neoplastic diseases such as malignant melanoma and urinary bladder tumors. Complications of the b. Calmette-Guérin vaccine and therapy are widely reported in the literature. However, its potential hazard to health workers is not well described. We present a case of b. Calmette-Guérinitis on the extensor surface of the left ring finger of a surgical resident following an accidental prick with a contaminated syringe while installing intravesical b. Calmette-Guérin to a patient being treated for a bladder tumor. A brief review of tuberculous hand infection is presented together with its recommended treatment. A review of the various usages of b. Calmette-Guérin is also presented, stressing the various reported complications.


Assuntos
Vacina BCG/efeitos adversos , Dermatite Ocupacional/diagnóstico , Cirurgia Geral/educação , Internato e Residência , Mycobacterium bovis , Tuberculose Cutânea/diagnóstico , Administração Intravesical , Adulto , Vacina BCG/administração & dosagem , Diagnóstico Diferencial , Traumatismos da Mão/complicações , Traumatismos da Mão/diagnóstico , Humanos , Masculino
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