PREGNANCIES ACHIEVED WITH TESTICULAR AND EJACULATED SPERMATOZOA IN COMBINATION WITH INTRACYTOPLASMIC SPERM INJECTION IN MEN WITH TOTALLY ORINITIALLY IMMOTILE SPERMATOZOA IN THE EJACULATE
S. Kahraman et al., PREGNANCIES ACHIEVED WITH TESTICULAR AND EJACULATED SPERMATOZOA IN COMBINATION WITH INTRACYTOPLASMIC SPERM INJECTION IN MEN WITH TOTALLY ORINITIALLY IMMOTILE SPERMATOZOA IN THE EJACULATE, Human reproduction, 11(6), 1996, pp. 1343-1346
The efficacy of intracytoplasmic sperm injection (ICSI) employing test
icular and ejaculated spermatozoa was assessed in 24 couples with tota
lly or initially immotile spermatozoa, No criteria were employed in se
lecting which patients would be treated with testicular or ejaculated
spermatozoa, The men were chosen at random, Testicular spermatozoa obt
ained by testicular sperm extraction were used in 14 and ejaculated sp
ermatozoa were used in 10 of these couples, In all cases, asthenozoosp
ermia was total in their basal semen sample, In 12 male partners, sper
matozoa were totally immotile before and after Percoll gradient fracti
onation (totally immotile), In the remaining 12 men, spermatozoa initi
ally showed a total absence of motility; however, some of the spermato
zoa had showed very poor motility (0.1%) after Percoll gradient fracti
onation and a 1.5-2.0 h incubation period (initially immotile), Of the
se 24 total asthenozoospermic males, 14 also had total teratozoospermi
a, The fertilization and cleavage rates in the testicular and ejaculat
ed sperm groups were 53.5 and 96.3 and 54.5 and 94.4% respectively, On
e cycle resulted in complete fertilization failure, and in 23 embryo t
ransfer cycles a total of 10 pregnancies were obtained (41.6%), Eight
pregnancies were achieved in the testicular sperm group, while only tw
o pregnancies were obtained in the ejaculated sperm group, Four pregna
ncies, two from the ejaculated sperm group and two from the testicular
sperm group, resulted in clinical abortions in the first trimester, O
f the remaining six pregnancies, two have already resulted in healthy
births and four pregnancies are now in the second or third trimester i
n the testicular sperm group, Using testicular spermatozoa in combinat
ion with ICSI can be an alternative mode of treatment in cases with to
tally or initially immotile spermatozoa in the ejaculate, Very low pre
gnancy rates have been obtained and no ongoing pregnancy has been achi
eved using ejaculated spermatozoa in these cases.