Effect of PGD on implantation and ongoing pregnancy rates in cases with predominantly macrocephalic spermatozoa

被引:27
作者
Kahraman, S
Sertyel, S
Findikli, N
Kumtepe, Y
Oncu, N
Melil, S
Unal, S
Yelke, H
Vanderzwalmen, P
机构
[1] Istanbul Mem Hosp, ART & & Genet Ctr, TR-80270 Istanbul, Turkey
[2] Ataturk Univ, Fac Med, Obstet & Gynecol Unit, Erzurum, Turkey
[3] Schoysman Infertil Fdn, Vilvoorde, Belgium
关键词
implantation rate; macrocephalic sperm sample; ongoing pregnancy rates; preimplantation genetic diagnosis;
D O I
10.1016/S1472-6483(10)62114-1
中图分类号
R71 [妇产科学];
学科分类号
100211 ;
摘要
Although its occurrence is rare, the presence of large headed or macrocephalic spermatozoa and increased chromosomal abnormality has recently been reported by several groups. Moreover, when intracytoplasmic sperm injection (ICSI) was performed with samples containing macrocephalic spermatozoa, lower fertilization and implantation rates result in poor clinical outcome. In order to evaluate the impact of preimplantation genetic diagnosis (PGD) on implantation and ongoing pregnancy rates in these couples, the results of 23 PGD cycles were compared with non-PGD cycles (n = 60) as well as cycles with absolute teratozoospermia (having zero normal morphology) with (it = 14) or without PGD (n = 66). Out of 82 embryos biopsied in the macrocephalic sperm group, abnormalities were detected in 46.4% of the embryos analysed. Most of the abnormalities were trisomies (37.0%) and complex aneuploidies (51.9%). A 33-3% pregnancy rate was achieved by selectively transferring euploid embryos after PGD with the statistically higher implantation rate of 25.0% compared with non-PGD cycles (IR: 123%, P < 0.01). Moreover, only one missed abortion (14.3%) was observed in the PGD group. whereas seven of the 15 pregnancies resulted in abortion in the non-PGD group (46.7%). Preliminary results indicate that patients should be counselled for increased chromosomal abnormality and a possible beneficial effect of eliminating chromosomally abnormal embryos with PGD on abortion rates.
引用
收藏
页码:79 / 85
页数:7
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