Open AccessAnalysis of limited fertility in intracytoplasmic sperm injection of sperm obtained by electroejaculation
Author(s) -
Nakamura Yoshihiro,
Matsumiya Kiyomi,
Kitamura Masaya,
Nishimura Kenji,
Tsujimura Akira,
Takeyama Masami,
Kondoh Nobuyuki,
Miyazaki Kazunori,
Okuyama Akihiko
Publication year - 2004
Publication title -
reproductive medicine and biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 22
eISSN - 1447-0578
pISSN - 1445-5781
DOI - 10.1111/j.1447-0578.2004.00040.x
Subject(s) - intracytoplasmic sperm injection , electroejaculation , sperm , andrology , gynecology , sperm retrieval , reproductive medicine , medicine , sperm motility , biology , in vitro fertilisation , pregnancy , genetics
Background and Aims : We correlated findings in semen from patients with ejaculatory dysfunction with results of in vitro fertilization using their electroejaculated sperm. Methods and Results : Electroejaculation was carried out in six patients with the above‐mentioned criteria for a total of eight times. Sperm was obtained in six attempts. Intracytoplasmic injection of these sperm was performed in 156 eggs. Sixty‐seven eggs were fertilized; most of these were injected with motile sperm. Two women became pregnant, both after injection with motile sperm. As previously reported, electroejaculated sperm showed low motility and a low fertilization rate, but even motile sperm had a low fertilization rate. Conclusion : The results of the present study suggest the importance in fertilization of undetermined factors in addition to sperm motility. (Reprod Med Biol 2004; 3 : 9–12)