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Comparative Study
. 1987 Nov;2(8):695-700.
doi: 10.1093/oxfordjournals.humrep.a136616.

Cryopreservation of human oocytes

S Al-Hasani  1 , K Diedrich, H van der Ven, A Reinecke, M Hartje, D Krebs
Affiliations
Comparative Study

Cryopreservation of human oocytes

S Al-Hasani et al. Hum Reprod. 1987 Nov.

Abstract

Three different methods were used for freezing human excess oocytes (320 frozen, 205 thawed) in our IVF programme and the results of these methods were compared. A high fertilization rate (75%) could be achieved after thawing, using 1,2 propanediol as a cryoprotectant. Polyploidy rates of 20% and 40% were observed using DMSO and 1,2-propanediol as cryoprotectants, respectively. Using the ultracooling method, the survival rate was poor (4%).

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