Sperm tail flexibility test: a simple test for selecting viable spermatozoa for intracytoplasmic sperm injection from semen samples without motile spermatozoa
Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo
; 58(5): 250-253, 2003. ilus
Article
em En
| LILACS
| ID: lil-349580
Biblioteca responsável:
BR1.1
RESUMO
PURPOSE:
The objective was to describe the results of the injection of immotile spermatozoa with flexible tails when only immotile spermatozoa are present in the semen sample.METHODS:
A retrospective study was conducted to analyze the procedure results for 10 couples who participated in our intracytoplasmic sperm injection program. The sperm tail was considered flexible when it moved up and down independently of the head movement, and it was considered inflexible when the movement occurred together (tail plus head). The fertilization and pregnancy rate were analyzed.RESULTS:
The normal fertilization rate (presence of 2 pronuclei) was 30.3 percent (40/132), and the abnormal fertilization rate (presence of less than or more than 2 pronuclei) was 6.81 percent (9/132). A total of 52 embryos were obtained with 9 transfer procedures performed (pregnancy rate 11.12 percent).CONCLUSIONS:
The sperm tail flexibility test (STFT) is an easy and cost-effective way for selecting viable immotile spermatozoa and can be used as an alternative method for determining the viability of spermatozoa. This test seems to be a simple and risk-free method when compared to the swelling test
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Motilidade dos Espermatozoides
/
Cauda do Espermatozoide
/
Injeções de Esperma Intracitoplásmicas
/
Infertilidade Masculina
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Adult
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Female
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Humans
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Male
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Pregnancy
Idioma:
En
Revista:
Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo
Assunto da revista:
MEDICINA
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil