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1.
Journal of Peking University(Health Sciences) ; (6): 294-298, 2022.
Artigo em Chinês | WPRIM | ID: wpr-936150

RESUMO

OBJECTIVE@#Androgen deficiency is common in aging males and may have unfavourable health consequences. Large-scale studies suggested low testosterone level might increse mortality and morbidity in ageing males. However, young men with low testosterone level might be neglected. Recent studies reported young men with infertility may have reduced testosterone level. To investigate the incidence of androgen deficiency in males with infertility and possible factors affecting the low testosterone level.@*METHODS@#Between January 2011 and December 2012, 407 men with infertility caused by varicocele (VC), obstructive azoospermia (OA) and nonobstructive azoospermia (NOA) in our center were included. The number of men in each group of OA, NOA and VC was 141, 97 and 169, respectively. All the eligible patients underwent a serum testosterone assessment by a single morning blood draw (between 8:00 to noon) to test for concentration of the total testosterone. All serum samples were determined by radioimmunoassay in our andrology laboratory. Androgen deficiency was defined as having a total testosterone level less than 300 ng/dL.@*RESULTS@#The mean age was (30.4±5.8) years. The mean testosterone level was (4.18±1.64) ng/dL (range 0.30 to 11.32 ng/dL). The overall incidence of androgen deficiency was 26.5% (108/407). The incidences of androgen deficiency in NOA, OA and VC groups were 40.2% (39/97), 19.1% (27/141) and 24.9% (42/169), respectively, which were significantly higher in the NOA than in the VC and OA groups (P < 0.001). The incidences had no difference between the VC and OA groups (P=0.229). Univariate analysis revealed the cause of infertility, FSH and the mean testis volume as possible affecting factors for androgen deficiency. However, on multivariate analysis the only cause of infertility was an independent predictor. The incidence of androgen deficiency was the highest in the NOA group [OR 0.492 (95% confidence interval 0.288-0.840)].@*CONCLUSION@#NOA and varicocele might be risk factors of androgen deficiency. Young men with NOA may have a higher possibility of low testosterone level. Testosterone level should be followed up after NOA and varicocele treatment. Androgen deficiency should be assessed in males with infertility in clinical practice.


Assuntos
Adulto , Feminino , Humanos , Masculino , Adulto Jovem , Androgênios , Azoospermia/etiologia , Testículo , Testosterona , Varicocele/complicações
2.
Korean Journal of Urology ; : 703-709, 2014.
Artigo em Inglês | WPRIM | ID: wpr-227276

RESUMO

Varicocele is the most common cause of male infertility and is generally correctable or at least improvable by various surgical and radiologic techniques. Therefore, it seems simple and reasonable that varicocele should be treated in infertile men with varicocele. However, the role of varicocele repair for the treatment of subfertile men has been questioned during the past decades. Although varicocele repair can induce improvement of semen quality, the obvious benefit of spontaneous pregnancy has not been shown through several meta-analyses. Recently, a well-designed randomized clinical trial was introduced, and, subsequently, a novel meta-analysis was published. The results of these studies advocate that varicocele repair be regarded as a standard treatment modality in infertile men with clinical varicocele and abnormal semen parameters, which is also supported by current clinical guidelines. Microsurgical varicocelectomy has been regarded as the gold standard compared to other surgical techniques and radiological management in terms of the recurrence rate and the pregnancy rate. However, none of the methods has been proven through well-designed clinical trials to be superior to the others in the ability to improve fertility. Accordingly, high-quality data from well-designed studies are needed to resolve unanswered questions and update current knowledge. Upcoming trials should be designed to define the best technique and also to define how to select the best candidates who will benefit from varicocele repair.


Assuntos
Humanos , Masculino , Fertilidade , Infertilidade Masculina/etiologia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Varicocele/complicações
3.
Rev. chil. urol ; 78(2): 66-70, ago. 2013. tab
Artigo em Espanhol | LILACS | ID: lil-774059

RESUMO

INTRODUCCIÓN: El varicocele es una causa frecuente de infertilidad en el hombre, encontrándose en el 40 por ciento de los hombres que consultan por infertilidad, existiendo diversas teorías que explican esta situación. Numerosos estudios apuntan a que la reparación del varicocele se asociaría a una mejoría en los parámetros seminales e incluso en las tasas de fertilidad. Entre las técnicas reparativas la varicocelectomía microquirúrgica (VM) se ha posicionado como la técnica gold standard dado sus mejores resultados en cuanto a éxito, recidiva y seguridad. OBJETIVO: evaluar el rol de la VM en los parámetros seminales de varones que consultan por infertilidad y que son sometidos a VM bilateral en comparación con aquellos en que se realiza VM unilateral. Materiales y método: se seleccionó a pacientes con varicocele clínico que consultaron por infertilidad y que tenían el espermiograma alterado, a los que se realizó VM uni o bilateral según tuvieran la enfermedad en uno o ambos lados. Se tomó el promedio de los parámetros seminales de 2 espermiogramas pre-operatorios y otras variables clínicas y demográficas y se comparó con los parámetros seminales a 6 meses post-cirugía. Además se comparó los resultados del grupo de VM bilateral con el unilateral. RESULTADOS: no hubo diferencias entre los grupos en el pre-operatorio, evidenciándose una mejoría en ambos grupos al analizar los resultados a los 6 meses post-VM. Esta mejoría fue significativamente mayor en el grupo de VM unilateral en cuanto a la concentración espermática (mediana de 6 mill/ml, comparado con 0.75 mill/ml en el grupo de pacientes sometidos a VM bilateral. p Value = 0.02)...


Introduction: Varicocele is a common cause of infertility in men, present in 40 percent of men with infertility, there are several theories that explain this situation. Numerous studies suggest that varicocele repair would be associated with an improvement in semen parameters and even fertility rates. Among the reparative techniques microsurgical varicocelectomy (VM) has positioned itself as the gold standard technique given the best results in terms of success, recurrence and security. Objective: To evaluate the role of the VM in semen parameters of men consulting for infertility and who undergo bilateral VM compared to those VM is performed unilaterally. Materials and Methods: We enrolled patients with clinical varicocele who consulted for infertility and had altered semen analysis, in which VM was performed unilateral or bilateral depending if they had the disease in one or both sides. The average of 2 pre-operative semen parameters was used and other clinical and demographic variables and they were compared with semen parameters at 6 months post-surgery. We also compared the results of the group with unilateral versus that with bilateral VM. Results: There were no differences between groups in the pre-operative, evidence-dose improvement in both groups in analyzing the results at 6 months post-VM. This improvement was significantly greater in the group of unilateral VM regarding sperm concentration (median of 6 mill / ml, compared with 0.75 million / ml in the group of patients undergoing bilateral VM. P Value = 0.02).Discussion: VM improves seminal parameters in patients with unilateral or bilateral varicocele, being unilateral VM group that benefits the most. This could be explained by a greater cumulative damage spermatogenesis in the case of bilateral varicocele. Randomized controlled prospective studies are needed, allowing to determine the real effect of unilateral vs. bilateral VM.


Assuntos
Humanos , Masculino , Adulto , Microcirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Varicocele/cirurgia , Estudos Prospectivos , Infertilidade Masculina/cirurgia , Infertilidade Masculina/etiologia , Varicocele/complicações
4.
Int. braz. j. urol ; 37(6): 745-750, Nov.-Dec. 2011. ilus, tab
Artigo em Inglês | LILACS | ID: lil-612758

RESUMO

OBJECTIVES: The most common indication for treatment of varicocele is still male subfertility. The aim of this study was to explore the effect of infertility duration on semen parameters and spontaneous pregnancy rate after varicocelectomy. MATERIALS AND METHODS: The medical records of 183 infertile patients with clinical varicocele were retrospectively reviewed. The patients were divided into three groups according to the duration of infertility (group I, 1-3 years, group II, 3-6 years and group III, > 6 years). Total sperm motility counts (TMCs) before and after varicocelectomy and spontaneous pregnancy rate among these groups were statistically compared. RESULTS: The greatest changes, regarding preoperative and postoperative TMCs and spontaneous pregnancy rate were noticed between group I and III. Preoperative TMCs in group I and III was 15.2 ± 1.2, 7.8 ± 1.4, respectively (p < 0.05). Postoperative TMCs in group I and III was 33.7 ± 2.5, 25.2 ± 1.9, respectively (p < 0.05). An overall spontaneous pregnancy rate of 34.4 percent was achieved after inguinal varicocelectomy. The greatest spontaneous pregnancy rate was achieved in Group I (37.3 percent), and the lowest pregnancy rate in Group III (26.3 percent) (P < 0.05). CONCLUSIONS: Surgical varicocelectomy improves the total sperm motility counts especially in patients who have a TMCS more than 5 million and improves the spontaneous pregnancy rates. The improvement in the spontaneous pregnancy rates after varicocelectomy correlates negatively with the duration of infertility. Therefore, duration of infertility should be considered in treating a patient with a varicocele as a cause of infertility.


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Adulto Jovem , Infertilidade Masculina/cirurgia , Taxa de Gravidez , Análise do Sêmen , Varicocele/cirurgia , Azoospermia/complicações , Infertilidade Masculina/etiologia , Análise Multivariada , Período Pós-Operatório , Período Pré-Operatório , Estudos Retrospectivos , Contagem de Espermatozoides , Motilidade dos Espermatozoides , Fatores de Tempo , Varicocele/complicações , Varicocele/fisiopatologia
5.
IJFS-International Journal of Fertility and Sterility. 2011; 5 (3): 174-185
em Inglês | IMEMR | ID: emr-144156

RESUMO

We designed this study to clarify how varicocele can time-dependently affect sperm morphological parameters and DNA integrity. In this study, we intend to estimate the effect of various periods of varicocele on the in vitro fertilization [IVF] rate in rats. In this experimental study, left varicocele were induced as the test group [n=18] which was further sub-divided into three groups based on the study termination time [4, 6 and 8 months after varicocele induction]. The control-sham group [n=6] consisted of rats who received no treatment. Repopulation index [RI], tubular differentiation index [TDI], sperm viability and motility, morphological maturity, chromatin integrity and ability to undergo IVF were assessed. In addition, the potential impact of varicocele on serum total antioxidant capacity [TAOC] and total thiol molecules [TTM] were examined. Histological results showed that varicocele negatively influenced TDI and RI. All sperm morphological parameters were lower than those in the control-sham group. DNA damage was severely and time-dependently substantiated in all test groups. Varicocele significantly reduced the ability of sperm derived from varicocele rats to undergo IVF. Serum TAOC and TTM levels reduced in a time-dependent manner. Right testes varicocele-induced rats showed remarkably less damaged profile for all investigated parameters compared to the left testes varicocele. Our data suggested that experimentally induced varicocele negatively impacted sperm maturation and chromatin integrity in a time-dependent manner. This consequently caused a remarkable reduction in IVF ability. The detrimental effect of varicocele may be attributed to the significant reduction of antioxidant capacity of the serum


Assuntos
Animais de Laboratório , Varicocele/complicações , Ratos , DNA , Fertilização in vitro , Espermatozoides/citologia , Dano ao DNA
6.
Afr. j. urol. (Online) ; 17(4): 115-121, 2011.
Artigo em Inglês | AIM | ID: biblio-1258117

RESUMO

Objective: The beneficial effect of varicocele repair in male infertility remains unresolved. The aim of this study was to identify the benefit from varicocele treatment based on pregnancy rate rather than improvement of semen quality.Subjects and Methods: This study included 141 infertile men with varicocele detected by clinical examination and confirmed by venous reflux on continuous wave Doppler ultrasonography (US). Measurement of Body Mass Index (BMI) and hormonal assays were performed in all patients. A total of 233 sub-inguinal varicocele repairs were done. Couples were followed up with semen analysis and pregnancy detection for 6, 12 and 18 months. Statistical analysis was performed using the chi-square, t-test and Mann-Whitney test where appropriate (p <0.05 accepted as statistically significant).Results: The spontaneous pregnancy rate was significantly greater in men with low or normal BMI. There were statistically significant differences between postoperative mean sperm count (64.7±6.8 and 10.5±1.8 million/ml) and progressive motility (38.3±2.4 and 17.7±1.8%) for spontaneous pregnancy and non-pregnancy, respectively. There were also significant changes from pre- to postoperative mean sperm concentration (21.5±2.1 and 64.7±3.8 million/ml), progressive motility (12.9±1.8 and 31.7±1.4%) and normal morphology (54±1.3 and 81.3±4.6%) in the spontaneous pregnancy cohort. Comparing pre- and postoperative serum hormone levels, FSH and prolactin decreased significantly in spontaneous pregnancy (6.57±0.65 to 4.6±0.53 IU/L and 166.2±11.8 to 149.3±10.4 pmol/L, respectively) and increased in non-pregnancy (9.05±0.71 IU/L and 187.8±13.3 pmol/L, respectively).Conclusion: Spontaneous pregnancy after sub-inguinal varicocelectomy is significantly affected by BMI, sperm concentration, progressive motility and morphology. The decrease of FSH may predict the spontaneous pregnancy outcome


Assuntos
Egito , Infertilidade Masculina/etiologia , Infertilidade Masculina/terapia , Resultado da Gravidez , Análise do Sêmen , Procedimentos Cirúrgicos sem Sutura , Varicocele/complicações , Varicocele/cirurgia
7.
Clinics ; 66(8): 1463-1478, 2011. ilus, tab
Artigo em Inglês | LILACS | ID: lil-598384

RESUMO

Assisted reproductive technology is an evolving area, and several adjuvant procedures have been created to increase a couple's chance of conceiving. For male infertility, the current challenges are to properly accommodate old and new techniques that are both cost-effective and evidence-based. In this context, urologists are expected to diagnose, counsel, provide medical or surgical treatment whenever possible and/or correctly refer male patients for assisted conception. Urologists are sometimes part of a multiprofessional team in an assisted reproduction unit and are responsible for the above-cited tasks as well as the surgical retrieval of sperm from either the epididymides or testicles. We present a comprehensive review of the surgical treatment options for infertile males, including the perioperative planning and prognostic aspects, with an emphasis on the role of microsurgery in the optimization of treatment results. This review also discusses current techniques for sperm retrieval that are used in association with assisted reproductive technology and includes sperm retrieval success rates according to the technique and the type of azoospermia. New insights are provided with regard to each surgical treatment option in view of the availability of assisted conception to overcome male infertility.


Assuntos
Humanos , Masculino , Infertilidade Masculina/cirurgia , Ductos Ejaculatórios/cirurgia , Infertilidade Masculina/etiologia , Microcirurgia , Prognóstico , Vasovasostomia , Varicocele/complicações , Varicocele/cirurgia
8.
Rev. Méd. Clín. Condes ; 21(3): 368-375, mayo 2010. tab, graf, ilus
Artigo em Espanhol | LILACS | ID: biblio-869476

RESUMO

Se estima que aproximadamente un 15 por ciento de las parejas son incapaces de concebir luego de un año de relaciones sexuales no protegidas; 30 por ciento son debidas a factor femenino y 30 por ciento a factor masculino. El 40 por ciento restante es de causa mixta. La evaluación inicial de rutina en el varón (que incluye una detallada historia clínica, examen físico y test básicos como perfil hormonal y análisis seminal) es por lo tanto esencial para la mejoría de su fertilidad. El varicocele, criptorquidia no tratada y las infecciones del tracto urogenital son las causas identificables más frecuentes de infertilidad masculina. Causas menos frecuentes son las disfunciones sexuales, trastornos endocrinos y efectos adversos de medicamentos. Los tratamientos para estas patologías han sido efectivos en la mayoría de los casos, permitiendo a un importante número de parejas concebir en forma espontánea. Si esto no es posible, las parejas pueden recurrir a técnicas de reproducción asistida de baja complejidad, tales como la Inseminación Intrauterina. Y sólo en aquellos casos con problemas más severos recurriremos a técnicas de reproducción de alta complejidad como por ejemplo el ICSI (Inyección Intracitoplasmática de Espermatozoides). Importantes progresos en el área de la Microcirugía permiten no sólo reparar la vía seminal en muchos casos, sino también recuperar espermatozoides de pacientes con atrofia testicular. En los últimos años, junto con el ICSI, han sido una importante contribución.


It is estimated that approximately 15 percent of couples are unable to conceive after one year of contraceptive-free intercourse; 30 percent of which are due to female factors and 30 percent to malefactors. The remaining 40 percent are due to both partners. A routine initial evaluation of the male partner (including detailed medical history, physical exam and basic tests such as hormonal profile and semen analysis) is therefore essential, for improvement of their fertility. Varicocele, untreated Cryptorquidism, infections (eg. epididymitis, orquitis, prostatitis and vesiculitis, most of which are related with sexually transmitted diseases) are the most frequent causes of male infertility. Other minor causes include sexual dysfunctions, drug adverse effects, exposure to radiationor contaminants, endocrine and genetic factors. Treatment for this condition has been effective in most cases, allowing a significant proportion of couples to conceive spontaneously. Whenever this is not possible, patients may resort to low complexity techniques such as artificial insemination, and only in more severe cases, to advanced assisted reproduction techniques such as In Vitro Fertilization (IVF) and in particular Intracytoplasmic Sperm injection (ICSI).Microsurgery has also progressed. Not only used to repair the seminal path when obstructed, but also to recover sperm from patients with testicular atrophy. In recent years, these techniques, together with ICSI, have made an important therapeutic contribution.


Assuntos
Humanos , Masculino , Infertilidade Masculina/diagnóstico , Infertilidade Masculina/etiologia , Infertilidade Masculina/terapia , Azoospermia , Criptorquidismo/complicações , Infecções Sexualmente Transmissíveis/complicações , Análise do Sêmen , Varicocele/complicações
9.
Int. braz. j. urol ; 36(1): 55-59, Jan.-Feb. 2010. tab
Artigo em Inglês | LILACS | ID: lil-544075

RESUMO

Purpose: Varicocelectomy is used in the treatment of scrotal pain. We report our results with microsurgical subinguinal varicocele ligation to treat pain. Materials and methods: A total of 284 men underwent subinguinal microsurgical varicocele ligation for scrotal pain. All patients were asked to return for a follow-up evaluation 3 months after surgery, which included a physical examination, as well as questions on pain severity, number of days required before their return to work and development of any postoperative complications. Results: Median patient age at the time of varicocele ligation was 23.7 years (range 16-38 years). The average duration of pain before presentation was 11.2 months (range 1 month to 40 months). In 85.6 percent patients there was complete resolution of pain and 6.3 percent had partial resolution. Pain persisted postoperatively in 19 cases (8.1 percent). There were statistically non-significant differences in the characteristics of the pain and grade of varicocele between postoperative groups. A significant difference was observed in postoperative success between patients who had long period and those who had short period of pain. Conclusions: Sub-inguinal microsurgical varicocele ligation is an effective treatment for painful varicocele. The duration of pain preoperatively may predict outcomes in selected patients.


Assuntos
Adolescente , Adulto , Humanos , Masculino , Adulto Jovem , Dor/cirurgia , Escroto/cirurgia , Procedimentos Cirúrgicos Urológicos/métodos , Varicocele/cirurgia , Seguimentos , Ligadura , Microcirurgia , Complicações Pós-Operatórias , Dor/etiologia , Índice de Gravidade de Doença , Resultado do Tratamento , Varicocele/complicações , Adulto Jovem
10.
West Indian med. j ; 58(5): 488-489, Nov. 2009. ilus
Artigo em Inglês | LILACS | ID: lil-672526

RESUMO

We present the case of a young male with an acute scrotal haematoma due to spontaneous rupture of a spermatic cord varicocoele confirmed by Doppler ultrasonography. After failure of conservative management, surgical exploration was performed with successful evacuation of the scrotal haematoma.


Presentamos el caso de un joven con un hematoma escrotal agudo a causa de la ruptura espontánea de un varicocele de cordón espermático, confirmada por medio de una ultrasonografía de Doppler. Luego de que fracasara un tratamiento conservador, se llevó a cabo una exploración quirúrgica con evacuación exitosa del hematoma escrotal.


Assuntos
Adulto , Humanos , Masculino , Hematoma/etiologia , Varicocele/complicações , Hematoma/cirurgia , Ruptura Espontânea , Varicocele/cirurgia
11.
Clinics ; 63(3): 395-404, 2008. ilus, tab
Artigo em Inglês | LILACS | ID: lil-484767

RESUMO

Infertility affects 10-15 percent of couples who are trying to conceive, and half of the cases are due to male infertility. Intracytoplasmic sperm injection is increasingly being used to overcome multiple sperm deficiencies. Due to its effectiveness, some have proposed ICSI as a solution for all cases of male infertility, regardless of the cause. Hence, even men with potentially treatable causes of infertility have sought the aid of assisted reproductive technology, rather than undergo specific therapies to treat their infertility. Varicoceles are the most frequent physical finding in infertile men; indeed, they may be responsible for nearly one-third of cases of male infertility. Varicocele management, however, has always been a controversial issue because very few randomized, controlled studies have been performed to examine varicocelectomy as an infertility treatment. Significant evidence suggests that varicoceles have a harmful effect on the testis and that varicocelectomy can not only prevent progressive decline in testicular function but also reverse the damage. However, the degree to which varicocele repair improves pregnancy rates and the success of assisted reproductive technology remains controversial.


Assuntos
Adulto , Feminino , Humanos , Masculino , Gravidez , Infertilidade Masculina/terapia , Técnicas de Reprodução Assistida , Varicocele/cirurgia , Fatores Etários , Azoospermia/fisiopatologia , Fertilidade/fisiologia , Infertilidade Masculina/cirurgia , Taxa de Gravidez , Resultado do Tratamento , Varicocele/complicações , Varicocele/fisiopatologia
12.
J Postgrad Med ; 2007 Jan-Mar; 53(1): 8-13
Artigo em Inglês | IMSEAR | ID: sea-116460

RESUMO

BACKGROUND: No reports have been published about age-related sperm malformations in varicocele patients. AIM: To investigate the distribution of abnormal sperm characteristics in adolescents, adults and older men with varicocele. SETTING AND DESIGN: Records of semen analysis of 143 men aged 14 to 53 years who had evident left-sided varicocele detected by physical examination and confirmed by doppler sonography were selected. MATERIALS AND METHODS: Sperm concentration, vitality, motility, morphology, hypoosmotic swelling test (HOST) and morphology were measured in adolescent males aged 14 to 20 years (n=31), men 21 to 30 years (n=48), 31 to 40 years (n=40) and older men over 40 (n=24) and compared with a control group of fertile men with no varicocele (n=27) and with a group of infertile men with varicocele (n=26). STATISTICAL ANALYSIS: One-way analysis of variance and the Kruskal-Wallis test were used to compare varicocele groups. Comparisons with the control group and infertile group were performed using the unpaired t-test and the Mann-Whitney test. The discriminating ability of significant sperm characteristics in evaluating the sperm quality of varicocele men was also analyzed using receiver operating characteristics curve to select the cut-off level providing the best combination of sensitivity and specificity. RESULTS: Varicocele men displayed similar impairment of vitality, motility and HOST. Sperm morphology analysis revealed a prevalence of small head, slightly and severely amorphous head and particularly combined anomalies in the study groups. Sperm concentration fell within the normal range of the World Health Organization manual. Differences were not significant between the study groups and when compared with infertile group ( P> 0.005). However, a comparative study of the varicocele groups and the infertile group with the control group revealed significant differences in sperm vitality, motility, HOST, morphologically normal sperm, pin-headed, tapered and combined anomalies. Morphologically normal sperm and combined anomalies showed higher accuracy in identifying poor sperm quality in varicocele men (83.7% and 77.9%, at cut-off levels of 9% and 38%, respectively). CONCLUSIONS: Varicocele harms equally the sperm characteristics of adolescents, adults and older men. Apparently, it affects sperm quality more adversely than it does sperm production.


Assuntos
Adolescente , Adulto , Fatores Etários , Humanos , Infertilidade Masculina/etiologia , Masculino , Pessoa de Meia-Idade , Contagem de Espermatozoides , Motilidade dos Espermatozoides , Espermatozoides/citologia , Varicocele/complicações
13.
J Postgrad Med ; 2007 Jan-Mar; 53(1): 1-2
Artigo em Inglês | IMSEAR | ID: sea-116219
15.
JRMS-Journal of Research in Medical Sciences. 2007; 12 (1): 52
em Inglês | IMEMR | ID: emr-104615
17.
Int. braz. j. urol ; 31(6): 541-548, Nov.-Dec. 2005.
Artigo em Inglês | LILACS | ID: lil-420480

RESUMO

OBJECTIVE: Analyze whether testicular histologic patterns from a group of azoospermic men with varicocele is predictive of treatment outcome after subinguinal microsurgical varicocele repair. MATERIALS AND METHODS: Seventeen azoospermic men underwent bilateral open single testis biopsy and microsurgical subinguinal repair of clinical varicoceles. RESULTS: Histopathology of testicular biopsies revealed hypospermatogenesis (HYPO) in 6 men, maturation arrest (MA) in 5, and Sertoli cell-only (SCO) in 6. Overall, presence of spermatozoa in the ejaculates was achieved in 47 percent (8/17) of men after varicocele repair, but only 35 percent (6/17) of them had motile sperm in their ejaculates. Only men with testicular histology revealing HYPO (5/6) or maturation arrest (3/5) had improvement after surgery. Median (25 percent - 75 percent percentile) postoperative motile sperm count for both groups were 0.9 X 106/mL (0.1-1.8 X 106/mL) and 0.7 X 106/mL (0.1-1.1), respectively (p = 0.87). The mean time for appearance of spermatozoa in the ejaculates was 5 months (3 to 9 months). One (HYPO) of 8 (12.5 percent) men who improved after surgery contributed to an unassisted pregnancy. Postoperative testicular biopsies obtained from patients who had no improvement after surgery revealed that testicular histology diagnosis remained unchanged. Successful testicular sperm retrieval for intracytoplasmic sperm injection (ICSI) was achieved in 4 of 9 (44.4 percent) individuals who did not improve after surgery, including 1 man with testicular histology exhibiting SCO. CONCLUSION: Microsurgical varicocele repair in nonobstructive azoospermic men with clinical varicoceles can result in sperm appearance in the ejaculate when hypospermatogenesis or maturation arrest is found on testicular histology diagnosis.


Assuntos
Adulto , Pessoa de Meia-Idade , Humanos , Masculino , Microcirurgia/métodos , Oligospermia/cirurgia , Espermatogênese/fisiologia , Testículo/patologia , Varicocele/cirurgia , Oligospermia/etiologia , Oligospermia/patologia , Estudos Retrospectivos , Injeções de Esperma Intracitoplásmicas , Motilidade dos Espermatozoides , Resultado do Tratamento , Varicocele/complicações
18.
Int. braz. j. urol ; 31(3): 236-244, May-June 2005. ilus
Artigo em Inglês | LILACS | ID: lil-411098

RESUMO

PURPOSE: Varicoceles are associated with impaired testicular function and male infertility, but the molecular mechanisms by which fertility is affected have not been satisfactorily explained. Spermatogenesis might be affected by increased scrotal temperature, such as that caused by varicocele. HSP90 is a molecular chaperone expressed in germ cells and is related to spermatogenesis, motility, and both heat and oxidative stress. Possible correlations between coding single region nucleotide polymorphisms (cSNPs) in the HSP90 gene in patients with varicocele associated with infertility were analyzed, and polymorphisms in these exons were characterized through DNA sequencing. MATERIALS AND METHODS: PCR-SSCP and DNA sequencing were used to search for mutations in 18 infertile patients with varicocele, 11 patients with idiopathic infertility and 12 fertile men. DNA was extracted from leucocytes for PCR amplification and SSCP analysis. DNA from samples with an altered band pattern in the SSCP was then sequenced to search for polymorphisms. RESULTS: Three silent polymorphisms that do not lead to amino acid substitutions were identified. CONCLUSION: Mutations in the HSP90 gene do not appear to be a common cause of male factor infertility. The low incidence of gene variation, or SNPs, in infertile men demonstrates that this gene is highly conserved and thus confirms its key role in spermatogenesis and response to heat stress.


Assuntos
Humanos , Masculino , Proteínas de Choque Térmico HSP90/genética , Infertilidade Masculina/etiologia , Mutação/genética , Polimorfismo de Nucleotídeo Único/genética , Varicocele/complicações , Infertilidade Masculina/genética , Reação em Cadeia da Polimerase , Polimorfismo Conformacional de Fita Simples , Estudos Prospectivos , Análise de Sequência de DNA , Índice de Gravidade de Doença , Varicocele/genética
19.
IJRM-Iranian Journal of Reproductive Medicine. 2005; 3 (1): 25-29
em Inglês | IMEMR | ID: emr-71059

RESUMO

Pentoxifylline [PX] is a methyxanthin derivative that influences the sperm motion characteristics. In general, PX has been reportedly effective in preserving sperm motility in vitro, also when administered orally to the asthenozoospermic patients. The main objective of this prospective clinical trial study was to rule out the effect of oral administration of PX on sperm progressive motility of asthenozoospermic ejaculates obtained from men with or without mild testicular varicoceles. In addition, the role of patient's age on sperm motility following PX administration was investigated. A total of 68 infertile men with asthenozoospermia were allocated to this study. Following physical examination, 20 cases were found with mild varicocele of testis. A dosage of 400 mg PX/ twice daily for duration of 3 months was administered to each patient. Two semen samples [one before and one after the PX therapy] were evaluated under blind condition. Semen parameters of sperm concentration, total and fast progressive motility [%] and morphology [%] were analyzed for each sample. Also, the sperm motion characteristics of asthenozoospermic patients with testicular varicocele were compared with cases lacking varicocele. The subjects were divided into two age groups of <30 and >/= 30 years old. PX was significantly effective on the fast progressive motility of sperm [p<0.01]. Also, total progressive motility was enhanced from 26.82 +/- 16.8 to 29.60 +/- 22.2 with PX therapy. However, PX did not have any negative effect on other semen parameters. Oral therapy of PX was also effective in improving the fast progressive motility of sperm of samples from cases with or without mild testicular varicocele [p<0.01]. Fast progressive motility was also significantly enhanced in ejaculates of men from both age groups. Our results demonstrate that low dose of oral therapy of PX is significantly useful in enhancing fast progressive motility of sperms from infertile men with asthenozoospermia. Also, testicular varicocele did not interfere with enhancing effect of PX on sperm motility


Assuntos
Humanos , Masculino , Oligospermia/tratamento farmacológico , Varicocele/complicações , Pentoxifilina , Motilidade dos Espermatozoides/efeitos dos fármacos , Estudos Prospectivos , Administração Oral
20.
Annals Abbassi Shaheed Hospital and Karachi Medical and Dental College. 2005; 10 (2): 716-722
em Inglês | IMEMR | ID: emr-69589

RESUMO

Varicocele is term used to define as abnormal dilatation of testicular vein and or its collaterals with retrograde venous blood flow. It is treated by two techniques surgical ligation and percutaneous emblization. It is claimed in various international journal that varicocele is a leading cause of male infertility and shows significant improvement in fertility parameters and pregnancy rate after treatment of varicocele either by varicocelectomy or gondal vein embolization but we have disproved this claim in our study. A retrospective study with few prospective cases. It is retrospective study with few prospective cases. We have selected all those infertile male patients who under gone varicocele treatment. We obtained hormonal assay, seminal assay as pre-treatment baseline values as well as post-treatment values at 1,2,3 and 6 months intervals. Couples were also followed for pregnancy for up to 5 years. Total cases selected were pre-treatment and post-treatment. Results were analyzed and compared with those published in national and international journals. No significant improvement was observed in fertility parameters and pregnancy rate. This signifies that varicocele is not significant and leading cause of infertility in males. Treatment of varicocele either by surgical ligation or percutaneous embolization did not showed any significant improvement in fertility parameters and pregnancy rate. This signifies that varicocele is not significant and leading cause of infertility in males


Assuntos
Humanos , Masculino , Varicocele/complicações , Ligadura , Embolização Terapêutica , Fertilidade , Resultado do Tratamento
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