Khaled M Kamal

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OBJECTIVES To examine sperm DNA denaturation (DD) in fertile and infertile men and assess the variability of conventional semen parameters and sperm DD in repeated semen samples from infertile men. METHODS Twenty-one consecutive nonazoospermic, infertile men each submitted two semen samples, 2 to 6 weeks apart. We examined semen samples from consecutive(More)
Varicocele represents the most common cause of male infertility, and most reports indicate that varicocelectomy has a beneficial effect on male fertility and pregnancy outcome. Assisted reproductive technologies (ARTs) are an alternative to varicocelectomy for the management of couples with a varicocele. The age of the female partner is important in the(More)
PURPOSE We describe a simple technique to deliver local anaesthetic for percutaneous testis biopsies. MATERIALS AND METHODS With the testis held firmly, a 25 gage needle is used to inject lidocaine, without epinephrine, into the skin and dartos superficial to the testis, then the needle is advanced through the tunica albuginea and 0.5 mL to 1.0 mL of(More)
OBJECTIVE To evaluate the natural history of infertile couples in whom the man underwent varicocelectomy. DESIGN Retrospective study. SETTING University infertility clinic. PATIENT(S) 159 infertile couples. INTERVENTION(S) Microsurgical varicocelectomy. MAIN OUTCOME MEASURE(S) Standard semen parameters and pregnancy rates (assisted and(More)
OBJECTIVES To assess the effectiveness of microsurgical varicocelectomy for the treatment of recurrent varicoceles associated with orchalgia. METHODS Twelve patients with recurrent (or persistent) painful varicocele underwent microsurgical varicocelectomy. Follow-up assessment was available for 11 patients and included a postoperative questionnaire and(More)
OBJECTIVES To examine the levels of sperm protamine free sulfhydryl or thiol (SH) groups and DNA denaturation (DD) in semen from fertile and infertile men.Methods. Semen samples were obtained from consecutive nonazoospermic men presenting for infertility evaluation (n = 66) and fertile men presenting for vasectomy (n = 10). The standard semen parameters(More)
OBJECTIVES To evaluate the impact of a technical modification of the microsurgical subinguinal varicocelectomy on surgical operating time. METHODS We introduced a technical modification to the standard microsurgical subinguinal varicocelectomy (division of the spermatic cord package before microsurgical dissection) in January 1999, to simplify the(More)
OBJECTIVES To examine the predictive value of the gonadotropin-releasing hormone (GnRH) stimulation test in a large cohort of infertile men undergoing varicocelectomy. METHODS We examined the records of 144 consecutive infertile couples in whom the man underwent microsurgical varicocelectomy between September 1998 and December 2002. All men underwent a(More)
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