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  • Title: Follicular size and number in human in vitro fertilization.
    Author: Quigley MM, Wolf DP, Maklad NF, Dandekar PV, Sokoloski JE.
    Journal: Fertil Steril; 1982 Dec; 38(6):678-81. PubMed ID: 6216125.
    Abstract:
    In an attempt to maximize the success of in vitro fertilization (IVF) and embryo transfer (ET) as a treatment for human infertility, we have examined the relationship of follicular size and number to the rates of oocyte recovery, fertilization, cleavage, and ET in clomiphene citrate-stimulated cycles. The recovery of oocytes from follicles less than 20 mm in diameter was significantly reduced over that from larger follicles, and those oocytes that were obtained from smaller follicles showed a significantly lower rate of fertilization and cleavage. In addition, the overall chance that a patient would undergo ET was greater in a cycle in which more than one follicle 20 mm or larger was developing than in a cycle in which a single large follicle was developing. This latter observation suggests that attempts at laparoscopic oocyte retrieval should be confined to cycles in which more than one accessible large follicle is developing, thereby maximizing the success rate while minimizing the risk and expense for the patient.
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