For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
27
views
39
references
 Top references
cited by
24
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      198
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Comparison of sperm retrieval and reproductive outcome in azoospermic men with testicular failure and obstructive azoospermia treated for infertility

      research-article

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          We assessed the rates of sperm retrieval and intracytoplasmic sperm injection outcomes, including the neonatal profile of infants conceived, in men with testicular failure. Three-hundred and sixty-five men with testicular failure who underwent micro-dissection testicular sperm extraction were included in this study. We compared their outcomes with 40 men with testicular failure who used donor sperm for injections due to failed retrieval, and 146 men with obstructive azoospermia who underwent percutaneous sperm retrieval. The retrieval rate in testicular failure was 41.4%, and the results were lower than the obstructed azoospermia (100%; adjusted odds ratio: 0.033; 95% CI: 0.007–0.164; P < 0.001). Live birth rates after sperm injections were lower in men with testicular failure (19.9%) compared with donor sperm (37.5%; adjusted OR: 0.377 (95% CI: 0.233–0.609, P < 0.001)) and obstructive azoospermia (34.2%; adjusted OR: 0.403 (95% CI: 0.241–0.676, P = 0.001). Newborn parameters of infants conceived were not significantly different among the groups. We concluded that the chances of obtaining sperm on retrieval and achieving a live birth after intracytoplasmic sperm injection (ICSI) are reduced in men with testicular failure. The profile of infants conceived after sperm injection does not seem to be negatively affected by testicular failure.

          Related collections

          Most cited references39

          • Record: found
          • Abstract: found
          • Article: not found

          Testicular sperm extraction: microdissection improves sperm yield with minimal tissue excision.

          Peter Schlegel (1998)
          Testicular sperm extraction (TESE) is often an effective method for sperm retrieval from men with non-obstructive azoospermia. However, TESE has been a blind procedure that does not identify the focal sperm-producing areas of the testicle until after tissue has been excised from the patient. Experience with a new technique of microdissection of testicular tubules is presented here that identifies sperm-containing regions before their removal. Identification of spermatogenically active regions of the testicle is possible by direct examination of the individual seminiferous tubules. The underlying concept for this technique is simple: seminiferous tubules containing many developing germ cells, rather than Sertoli cells alone, are likely to be larger and more opaque than tubules without sperm production. In a sequential series of TESE cases for men with non-obstructive azoospermia, the ability to find spermatozoa increased from 45% (10/22) to 63% (17/27) after introduction of the microdissection technique. Microdissected samples yielded an average of 160,000 spermatozoa per sample in only 9.4 mg of tissue, whereas only 64,000 spermatozoa were found in standard biopsy samples that averaged 720 mg in weight (P < 0.05 for all comparisons). For men where microdissection was attempted, successful identification of enlarged tubules was possible in 56% (15/27) of cases. However, spermatozoa were retrieved with microdissection TESE for six men in whom sperm retrieval was unsuccessful with standard TESE approaches (35% of all men with spermatozoa retrieved). These findings suggest that microdissection TESE can improve sperm retrieval for men with non-obstructive azoospermia over that achieved with previously described biopsy techniques.
          Article 0 comments Cited 126 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Predictive factors in in vitro fertilization (IVF): a systematic review and meta-analysis.

            L van Loendersloot, M. van Wely, J Limpens … (2015)
            Various models have been developed for the prediction of pregnancy after in vitro fertilization (IVF). These models differ from one another in the predictors they include. We performed a systematic review and meta-analysis to identify the most relevant predictors for success in IVF. We systematically searched MEDLINE and EMBASE for studies evaluating IVF/ICSI outcome. Studies were included if they reported an unconditional odds ratio (OR) or whenever one could be calculated for one or more of the following factors: age, type of infertility, indication, duration of infertility, basal FSH, number of oocytes, fertilization method, number of embryos transferred and embryo quality. Fourteen studies were identified. A summary OR could be calculated for five factors. We found negative associations between pregnancy and female age [OR: 0.95, 95% confidence interval (CI): 0.94-0.96], duration of subfertility (OR: 0.99, 95% CI: 0.98-1.00) and basal FSH (OR: 0.94, 95% CI: 0.88-1.00). We found a positive association with number of oocytes (OR 1.04, 95% CI: 1.02-1.07). Better embryo quality was associated with higher pregnancy chances. No significant association was found for the type of infertility and fertilization method. A summary OR for IVF indication and number of embryos transferred could not be calculated, because studies reporting on these used different reference categories. Female age, duration of subfertility, bFSH and number of oocytes, all reflecting ovarian function, are predictors of pregnancy after IVF. Better quality studies are necessary, especially studies that focus on embryo factors that are predictive of success in IVF.
            Article 0 comments Cited 99 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: found
              Is Open Access

              An update on the clinical assessment of the infertile male

              Sandro Esteves, Ricardo Miyaoka, Ashok Agarwal (2011)
              Male infertility is directly or indirectly responsible for 60% of cases involving reproductive-age couples with fertility-related issues. Nevertheless, the evaluation of male infertility is often underestimated or postponed. A coordinated evaluation of the infertile male using standardized procedures improves both diagnostic precision and the results of subsequent management in terms of effectiveness, risk and costs. Recent advances in assisted reproductive techniques (ART) have made it possible to identify and overcome previously untreatable causes of male infertility. To properly utilize the available techniques and improve clinical results, it is of the utmost importance that patients are adequately diagnosed and evaluated. Ideally, this initial assessment should also be affordable and accessible. We describe the main aspects of male infertility evaluation in a practical manner to provide information on the judicious use of available diagnostic tools and to better determine the etiology of the most adequate treatment for the existing condition.
              Article 0 comments Cited 68 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Journal
                Journal ID (nlm-ta): Asian J Androl
                Journal ID (iso-abbrev): Asian J. Androl
                Journal ID (publisher-id): AJA
                Title: Asian Journal of Andrology
                Publisher: Medknow Publications & Media Pvt Ltd (India )
                ISSN (Print): 1008-682X
                ISSN (Electronic): 1745-7262
                Publication date (Print): Jul-Aug 2014
                Publication date (Electronic): 08 April 2014
                Volume: 16
                Issue: 4
                Pages: 602-606
                Affiliations
                [1 ]ANDROFERT, Center for Male Reproduction, Campinas, Brazil
                [2 ]Center for Reproductive Medicine, The Cleveland Clinic Foundation, Cleveland, USA
                Author notes
                Correspondence: Dr. SC Esteves ( s.esteves@ 123456androfert.com.br )
                Article
                Publisher ID: AJA-16-602
                DOI: 10.4103/1008-682X.126015
                PMC ID: 4104090
                PubMed ID: 24759580
                SO-VID: 4aaf09d9-52fd-484e-810c-bea8d4142632
                Copyright © Copyright: © Asian Journal of Andrology
                License:

                This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 29 August 2013
                Date revision received : 09 October 2013
                Date accepted : 15 December 2013
                Categories
                Subject: Original Article

                Keywords: infant,intracytoplasmic sperm injection,obstructive azoospermia,pregnancy outcome,sperm retrieval,testicular failure
                Data availability:
                Keywords: infant, intracytoplasmic sperm injection, obstructive azoospermia, pregnancy outcome, sperm retrieval, testicular failure

                Comments

                Comment on this article

                scite_

                Similar content198

                See all similar

                Cited by23

                See all cited by

                Most referenced authors283

                See all reference authors