Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction?
Intracytoplasmic injection with testicular spermatozoa has become a routine treatment in fertility clinics. Spermatozoa can be recovered in half of patients with nonobstructive azoospermia. The use of immature germ cells for intracytoplasmic injection has been proposed for cases in which no spermato...
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doaj-6521b9dfa44b452b86c57297e3104dde2020-11-25T02:16:39ZengFaculdade de Medicina / USPClinics1980-532268suppl 115115610.6061/clinics/2013(Sup01)17S1807-59322013001300017Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction?Veerle Vloeberghs0Greta Verheyen1Herman Tournaye2University Hospital BrusselsUniversity Hospital BrusselsUniversity Hospital BrusselsIntracytoplasmic injection with testicular spermatozoa has become a routine treatment in fertility clinics. Spermatozoa can be recovered in half of patients with nonobstructive azoospermia. The use of immature germ cells for intracytoplasmic injection has been proposed for cases in which no spermatozoa can be retrieved. However, there are low pregnancy rates following intracytoplasmic injection using round spermatids from men with no elongated spermatids or spermatozoa in their testes. The in vitro culture of immature germ cells to more mature stages has been proposed as a means to improve this poor outcome. Several years after the introduction of intracytoplasmic injection with elongating and round spermatids, uncertainty remains as to whether this approach can be considered a safe treatment option. This review outlines the clinical and scientific data regarding intracytoplasmic injection using immature germ cells and in vitro matured germ cells.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322013001300017&lng=en&tlng=enRound SpermatidElongating SpermatidElongated SpermatidICSIIn Vitro Maturation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Veerle Vloeberghs Greta Verheyen Herman Tournaye |
spellingShingle |
Veerle Vloeberghs Greta Verheyen Herman Tournaye Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction? Clinics Round Spermatid Elongating Spermatid Elongated Spermatid ICSI In Vitro Maturation |
author_facet |
Veerle Vloeberghs Greta Verheyen Herman Tournaye |
author_sort |
Veerle Vloeberghs |
title |
Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction? |
title_short |
Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction? |
title_full |
Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction? |
title_fullStr |
Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction? |
title_full_unstemmed |
Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction? |
title_sort |
intracytoplasmic spermatid injection and in vitro maturation: fact or fiction? |
publisher |
Faculdade de Medicina / USP |
series |
Clinics |
issn |
1980-5322 |
description |
Intracytoplasmic injection with testicular spermatozoa has become a routine treatment in fertility clinics. Spermatozoa can be recovered in half of patients with nonobstructive azoospermia. The use of immature germ cells for intracytoplasmic injection has been proposed for cases in which no spermatozoa can be retrieved. However, there are low pregnancy rates following intracytoplasmic injection using round spermatids from men with no elongated spermatids or spermatozoa in their testes. The in vitro culture of immature germ cells to more mature stages has been proposed as a means to improve this poor outcome. Several years after the introduction of intracytoplasmic injection with elongating and round spermatids, uncertainty remains as to whether this approach can be considered a safe treatment option. This review outlines the clinical and scientific data regarding intracytoplasmic injection using immature germ cells and in vitro matured germ cells. |
topic |
Round Spermatid Elongating Spermatid Elongated Spermatid ICSI In Vitro Maturation |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322013001300017&lng=en&tlng=en |
work_keys_str_mv |
AT veerlevloeberghs intracytoplasmicspermatidinjectionandinvitromaturationfactorfiction AT gretaverheyen intracytoplasmicspermatidinjectionandinvitromaturationfactorfiction AT hermantournaye intracytoplasmicspermatidinjectionandinvitromaturationfactorfiction |
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