azoospermia

(redirected from Non-obstructive Azoospermia)
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Related to Non-obstructive Azoospermia: TESE

azoospermia

 [a″zo-o-sper´me-ah]
lack of live spermatozoa in the semen; see also aspermatogenesis.

a·zo·o·sper·mi·a

(ā'zō-ō-sper'mē-ă),
Absence of living spermatozoa in the semen; failure of spermatogenesis.
See also: aspermia.
[G. a- priv. + zōon, animal, + sperma, seed]

azoospermia

/azoo·sper·mia/ (a-zo″o-sper´me-ah) lack of live spermatozoa in the semen; classified as obstructive or nonobstructive depending on whether cause is blockage of the tubules or ducts.

azoospermia

[āzō′əspur′mē·ə]
Etymology: Gk, a, zoon, not animal, sperma seed
lack of spermatozoa in the semen. It may be caused by testicular dysfunction, cancer chemotherapy, or blockage of the tubules of the epididymis, or it may be induced by vasectomy. Infertility, but not impotence, is associated with azoospermia. Compare oligospermia.

azoospermia

Complete absence of sperm in the semen, with resultant infertility.

Azoospermia
• Pretesticular—due to absence of FSH secondary to hypopituitarism, hyperprolactinemia and FSH suppression by exogenous androgens.
• Testicular—The most common cause, in which the testes are atrophic, typically due to cryptorchidism or Sertoli cell-only syndrome, but also orchiditis, cancer, surgery, trauma or radiation.
• Post-testicular—due to vasectomy, agenesis of vas deferens or ejaculatory dysfunction.

azoospermia

Urology Complete absence of sperm in the semen, with resultant infertility. See Oligospermia.

a·zo·o·sper·mi·a

(ā'zō-ō-spĕr'mē-ă)
Absence of living sperms in the semen; failure of spermatogenesis.
[G. a- priv. + zōon, animal, + sperma, seed]

azoospermia

Absence of spermatozoa from the seminal fluid, a cause of male sterility. Sperms may still be being produced in the testes.

azoospermia

absence of spermatozoa in the semen, or failure of formation of spermatozoa.
References in periodicals archive ?
Therefore, disruption of AZF can be viewed as the most common molecularly diagnosable cause of spermatogenic failure in the setting of non-obstructive azoospermia or severe oligozoospermia (9).
The AZFc deletion was the most common pattern of AZF microdeletions in patients with non-obstructive azoospermia and severe oligozoospermia; this finding is consistent with previous reports (9).
Long- term proliferation and characterization of human spermatogonial stem cells obtained from obstructive and non-obstructive azoospermia under exogenous feeder-free culture conditions.
However, men with normal levels of FSH and LH could have either non-obstructive azoospermia or obstructive azoospermia.
Establishment of predictive variables associated with testicular sperm retrieval in men with non-obstructive azoospermia.
Testicular sperm extraction with intracytoplasmic sperm injection for non-obstructive azoospermia.
Testicular sperm aspiration seems to be a safe method for sperm retrieval with minimal physiological consequences in men with obstructive and non-obstructive azoospermia.
The aim of this study was to compare use of fresh and frozen sperm samples in non-obstructive azoospermia through microdissection testicular sperm extraction (microTESE) treatment.
In non-obstructive azoospermia, the finding of testicular spermatozoa constitutes a key element predicting treatment success as only half of these men will have sperm.
The frequency of somatic chromosomal abnormalities in infertile men varies from 3%-19%: that is 3% in the cases of mild infertility and 19% in men with non-obstructive azoospermia (NOA).
Inhibin B could be used as a marker for the identification of spermatogenesis and as an indicator for the level of interruption in spermatogenesis in men with non-obstructive azoospermia (12).

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