By Craig Niederberger
An advent to Male Reproductive drugs is written particularly for readers looking access into this fast-moving, advanced uniqueness with a fantastic knowing of the topic. the 1st chapters conceal the anatomy and body structure, scientific assessment, surgical procedure, medication, genetics and laboratory checking out fascinated by the present review and remedy of the infertile male, and the ultimate bankruptcy describes the interplay of the sphere with lady reproductive drugs. through the booklet, references are without delay made to the fourth version of the main textual content within the distinctiveness, Infertility within the Male, edited via Larry Lipshultz, Stuart Howards and Craig Niederberger, permitting readers to extend their figuring out of particular parts the place wanted. each one bankruptcy is written through a well-renowned specialist in a simple to stick to, casual variety, making the textual content perfect for college students, citizens and normal physicians who're trying to elevate their normal wisdom of the sector.
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Extra info for An Introduction to Male Reproductive Medicine
A more detailed description of epididymis structure and function can be found in  (chapter 6) and . Chapter 1: Male reproductive medicine: anatomy and physiology Vas deferens The vas deferens is an androgen-dependent organ that transports sperm into the pelvis, where it joins the seminal vesicles to form ejaculatory ducts, the largely collagenous tubes, which enter the prostatic urethra. Just before ejaculation, the testes are brought close to the abdomen and fluid is rapidly transported through the vas deferens to the ejaculatory duct and subsequently into the prostatic urethra.
Purohit and co-authors reported only a 52% concordance of transrectal ultrasound with radiographic assessment of seminal vesicles with injected contrast (vesiculography), only a 48% concordance with seminal vesicle aspiration, and only 36% of the time when dye was injected into the seminal vesicles, and cystoscopy was used to visualize whether or not the dye appeared at the ejaculatory ducts (also referred to as “chromotubation”) . In Purohit and co-investigator’s study, approximately half of patients underwent resection of the ejaculatory ducts based on findings of these tests, and 10 of 12 showed some improvement in sperm count or symptoms .
Patients understand that radiation damages DNA, and often inquire how long after radiation and chemotherapy is it “safe” for the sperm to impregnate an egg. At this point in medical history, we do not yet know. 1 Typical recovery times for spermatogenesis after radiation Radiation dose (rads) Time until recovery of spermatogenesis 100–200 200–300 400–600 >600 9–12 months 30 months >5 years Permanent sterility Androlog suggested that 2 years might be a reasonable amount of time for a man to wait should sperm return to the ejaculate .