1. Egg cells
2. Sperm cells
3. Embryos
►►► The sensible and professional application of these methods improve the results after IVF/ICSI treatment and are indeed offered at our institutes.
1. Egg cells:
a.) Morphology: 1st and 2nd polar body, perivitelliner crack
b.) Cytoplasm abnormalities
c.) Extracytoplasmic abnormalities
d.) Spindle analysis (also important to position sperm cell
at ICSI)
2. Sperm cell analysis:
a. ) Sperm analysis according to WHO-criteria – is applied at every IVF/ICSI
b.) Morphology Evaluation with the help of magnifications
(6.000 - 12.000 fold!)
This improves the clinical results of couples, whose last conventional ICSI-treatment failed. The results for men with a higher level of sperm-DNA-fragmentation as well as with normal DNA-status sperm (Hazout et al., RBM-Online 2005) improve. The sperm morphology is predictable. There is a positive correlation between DNA-damages and abnormal morphology (Morris et al., Hum.Reprod. 2002; Aitken et al., Hum.Reprod. 2004; Bartoov et al., Fertil. Steril. 2003, Hum. Reprod. 2005): higher fertilization rates, higher percentage of TOP-embryos, higher pregnancy- (67%) and implantation-rates, the early spontaneous abortion rate is reduced (Bach M et al., Hum. Reprod. 2007; Zech NH et al., NEJM
c.) Hyalorunan Binding Assay: With this method, sperm cells can get analysed and selceted for ICSI. Only sperm cells, which show an intact acrosome reaction and are - according to scientific studies - well qualified to procure a fertilization and lower the risk of miscarriages (obviously better genetics = PICSI)
d.) DNA-Fragmentation-Test: The sperm cells used here can not be used for ICSI; it is just a general analysis of the ejaculate to pick out genetically abnormal sperm cells.
3. Embryo Diagnostics:
a.) Non invasive: - Morphology: Speed of development, spindle analysis, Pronukleus development, first cell divisions
b.) Amount of blastomeres
c.) Size and form of blastomeres
d.) Anukleäre fragments
e.) Cytoplasma
f.) Multi-Nucleation
g.) Cell compaction (Morula-stage)
h.) Blastocyst development