Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction?
Clinics
; 68(supl.1): 151-156, 2013.
Article
em En
| LILACS
| ID: lil-668048
Biblioteca responsável:
BR1.1
ABSTRACT
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.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Oligospermia
/
Maturação do Esperma
/
Espermátides
/
Injeções de Esperma Intracitoplásmicas
Limite:
Female
/
Humans
/
Male
/
Pregnancy
Idioma:
En
Revista:
Clinics
Assunto da revista:
MEDICINA
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Bélgica
País de publicação:
Brasil