Fertility and sterility · 2002
Intracytoplasmic sperm injection pregnancy after low-dose human chorionic gonadotropin alone to support ovarian folliculogenesis.
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Filicori Marco, Cognigni Graciela Estela, Taraborrelli Stefania, Parmegiani Lodovico, Bernardi Silvia, Ciampaglia Walter
Аннотация
OBJECTIVE: To prove that several days of low-dose hCG alone can be used to stimulate folliculogenesis, complete FSH-initiated follicle/oocyte maturation, and achieve pregnancy in assisted reproduction technology.
DESIGN: Case report.
SETTING: Reproductive endocrinology center at an academic institution.
PATIENT(S): A 35-year-old female patient and her partner with male-related infertility.
INTERVENTION(S): After an 8-day priming with hMG (225 IU/d), we administered low-dose hCG (200 IU/d) alone for 5 days in one GnRH-agonist suppressed patient until proper follicle development was obtained and intracytoplasmic sperm injection was performed.
MAIN OUTCOME MEASURE(S): Daily serum levels of LH, FSH, hCG, E(2), P, and T; measurements of follicle number and size; oocytes retrieved and fertilized; pregnancy.
RESULT(S): Although FSH levels rapidly declined after hMG discontinuation, E(2) and large follicles increased during hCG-only administration. Several good quality oocytes were retrieved and fertilized by intracytoplasmic sperm injection; three embryos were transferred and a twin pregnancy ensued.
CONCLUSION(S): Replacement of FSH with low-dose hCG for several days in the late ovulation induction stages of assisted reproduction technology resulted in: [1] continued growth of large ovarian follicles and E(2); [2] an optimal preovulatory follicle pattern consisting of many large and few medium and small follicles; and [3] reproductively competent oocytes and pregnancy.
DESIGN: Case report.
SETTING: Reproductive endocrinology center at an academic institution.
PATIENT(S): A 35-year-old female patient and her partner with male-related infertility.
INTERVENTION(S): After an 8-day priming with hMG (225 IU/d), we administered low-dose hCG (200 IU/d) alone for 5 days in one GnRH-agonist suppressed patient until proper follicle development was obtained and intracytoplasmic sperm injection was performed.
MAIN OUTCOME MEASURE(S): Daily serum levels of LH, FSH, hCG, E(2), P, and T; measurements of follicle number and size; oocytes retrieved and fertilized; pregnancy.
RESULT(S): Although FSH levels rapidly declined after hMG discontinuation, E(2) and large follicles increased during hCG-only administration. Several good quality oocytes were retrieved and fertilized by intracytoplasmic sperm injection; three embryos were transferred and a twin pregnancy ensued.
CONCLUSION(S): Replacement of FSH with low-dose hCG for several days in the late ovulation induction stages of assisted reproduction technology resulted in: [1] continued growth of large ovarian follicles and E(2); [2] an optimal preovulatory follicle pattern consisting of many large and few medium and small follicles; and [3] reproductively competent oocytes and pregnancy.