A post-vasectomy spermogram is required to confirm that a vasectomy was successful and that there is no sperm in the semen. NASCI has built an enviable reputation in the field of fertility spermograms. As a result, they have adapted their extensive expertise to producing a better PV spermogram. Acquiring a sample is much less restrictive for patients since it is done at home. The patient only visits the clinic to deliver the specimen. The traditional PV spermogram in a private or public laboratory involves counting the sample microscopically using just 0.
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We'd like to understand how you use our websites in order to improve them. Register your interest. The value of sperm morphology to predict the sperm fertilizing capacity is a subject of ongoing debate.
However, it is clear that sperm morphological examination is essential to determine sperm quality as part of the assessment of male or couple infertility. Moreover, application of a new high-power magnification method, which allows the choice of spermatozoa with a preferred nuclear morphology, is positively correlated with a dramatic increase in IVF-IMSI pregnancy rates. Several detailed classification systems of sperm abnormalities have been proposed over the last fifty years and each revision of these classifications introduces stricter criteria.
However, the results of sperm analyses are very heterogeneous in terms of the overall percentage of morphological abnormalities and the respective frequencies of the various abnormalities. This examination must therefore be performed very carefully based on strictly defined criteria for the assessment of each abnormality with harmonization of these criteria between the various observers in the same laboratory and between laboratories.
Various studies have examined the impact of isolated teratozoospermia on the results of IVF and ICSI, but once again with sometimes contradictory results. Over the last ten years, it has been shown that aneuploidy rates in the semen of populations of infertile men with moderate or severe oligospermia were higher than those in fertile men with normal sperm counts, and that sperm disomy rates were about fold higher in ICSI than in IVF.
However, the results of these various studies fail to demonstrate an obvious link between polymorphic teratozoospermia and the frequency of disomy and aneuploidy in sperm. Consequently, light microscopy sperm morphological examination, at the magnifications generally used for sperm counts x , is therefore not a good indicator of chromosomal abnormalities in human semen, except in the rare cases of monomorphic abnormalities.
However, this is not the case for the link between sperm morphology and apoptosis, as a growing number of studies establish a positive correlation between male infertility and the presence of apoptotic markers on spermatozoa, and morphological parameters appear to be closely correlated with apoptosis.
Finally, standardization of examination procedures and reporting of the results of sperm morphological examination is absolutely essential. Download to read the full article text.
Andrologie, , — AZIZ N. Lancet, , — Andrologia, , — CHEN Z. CHOW V. Update, , 4: 73— Google Scholar. Andrologia, , 3: 49— Andrologia, , 57— A cooperative study. Online, , — Genome Res. NAGY Z. Acta Obstet. SUN F. Springfield, W. Williams Inc. Cambridge, Cambridge University press, Download references. Reprints and Permissions.
Guichaoual, M. Download citation. Received : 15 November Accepted : 15 November Issue Date : March Search SpringerLink Search.
Download PDF. Abstract The value of sperm morphology to predict the sperm fertilizing capacity is a subject of ongoing debate. References 1. You can also search for this author in PubMed Google Scholar. View author publications. Rights and permissions Reprints and Permissions. About this article Cite this article Guichaoual, M.
Quelle valeur attribuer à l’analyse morphologique des spermatozoïdes en microscopie optique?
The evaluation of the barrenness of the couple includes several successive stages, taking account of the main reasons of infertility or hypofertility as good at the man that at the woman. It is logical, to start with the survey of features of the semen, notably sperm count and motility assessment. It appears thus hazardous to extricate some definitive findings on the basis of only one exam and it is counseled to renew it. The sperm count can be completed by the fine analysis of parameters of the spermatic movement. This one is now possible, thanks to techniques of analyses microvideographic automated. Journal page Archives Contents list. Article Article Outline.
We'd like to understand how you use our websites in order to improve them. Register your interest. The value of sperm morphology to predict the sperm fertilizing capacity is a subject of ongoing debate. However, it is clear that sperm morphological examination is essential to determine sperm quality as part of the assessment of male or couple infertility.
We'd like to understand how you use our websites in order to improve them. Register your interest. Routine evaluation of semen characteristics-spermiogram-includes estimation of the percentage of motile sperm; however it does not provide quantitative informations about sperm movement characteristics, except under the form of qualitative appreciations slow, sluggish, yawing, non progressive, etc. CASA systems are now so performing and rapid that sperm movement analysis SMA can be proposed in the same time of routine semen analysis.