Journal
JOURNAL OF ASSISTED REPRODUCTION AND GENETICS
Volume 28, Issue 6, Pages 539-544Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10815-010-9527-z
Keywords
Embryo development; Follicle diameter; IVM; In vivo matured oocytes
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To examine the fertilization and developmental potential of sibling mature oocytes collected from different follicle sizes on day of retrieval in in vitro maturation (IVM) cycles. Two hundred thirty eight hCG-primed IVM cycles were performed in 213 patients with polycystic ovaries. If sibling mature oocytes were retrieved on day of collection, they were divided into two groups, Group 1 (n = 78): M-II oocytes obtained from follicles size 10-14 mm; Group 2 (n = 192): M-II oocytes obtained from follicles size < 10 mm. Of the 238 cycles, 63 cycles had more than one M-II oocytes retrieved (total M-II oocytes = 270) both from Groups 1 and 2. There were no significant differences between the two groups for oocyte diameter (117.2 mm vs. 116.9 mm), fertilization (79.5% vs. 72.4%) and good quality embryo on day 3 (66.1% vs. 56.8%). The M-II oocytes retrieved from the cohort of follicles (< 10 mm diameter) can produce the same quality of embryos as that from large follicles, likely contributing to improve the clinical outcome.
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