OBJECTIVE: To evaluate the effect of individual providers on pregnancy outcome after embryo transfer. DESIGN: Retrospective data analysis. SETTING: University-based tertiary-care assisted reproductive technology program with 10 physician-providers. PATIENT(S): Six hundred and seventeen women who underwent 854 fresh embryo transfers between January 1996 and January 1999. INTERVENTION(S): Pregnancies after embryo transfer were recorded for each provider. MAIN OUTCOME MEASURE(S): Establishment of a clinical pregnancy. RESULT(S): Three hundred ninety-three clinical pregnancies resulted from 854 embryo transfers, for an overall clinical pregnancy rate of 46.0% per embryo transfer. Three hundred forty-seven (40.6%) pregnancies were ongoing. The clinical pregnancy rate varied significantly between providers: for example, 17.0% (47 transfers) vs. 54.3% (57 transfers) (P<.05). Similarly, the ratio of high-grade embryos required to produce a gestational sac differed between providers. The number or quality of embryos transferred did not differ significantly. CONCLUSION(S): Significant differences were observed in pregnancy rates after embryo transfer done by different providers, suggesting that embryo transfer technique may influence pregnancy outcome in assisted reproductive technology.
OBJECTIVE: To evaluate the effect of individual providers on pregnancy outcome after embryo transfer. DESIGN: Retrospective data analysis. SETTING: University-based tertiary-care assisted reproductive technology program with 10 physician-providers. PATIENT(S): Six hundred and seventeen women who underwent 854 fresh embryo transfers between January 1996 and January 1999. INTERVENTION(S): Pregnancies after embryo transfer were recorded for each provider. MAIN OUTCOME MEASURE(S): Establishment of a clinical pregnancy. RESULT(S): Three hundred ninety-three clinical pregnancies resulted from 854 embryo transfers, for an overall clinical pregnancy rate of 46.0% per embryo transfer. Three hundred forty-seven (40.6%) pregnancies were ongoing. The clinical pregnancy rate varied significantly between providers: for example, 17.0% (47 transfers) vs. 54.3% (57 transfers) (P<.05). Similarly, the ratio of high-grade embryos required to produce a gestational sac differed between providers. The number or quality of embryos transferred did not differ significantly. CONCLUSION(S): Significant differences were observed in pregnancy rates after embryo transfer done by different providers, suggesting that embryo transfer technique may influence pregnancy outcome in assisted reproductive technology.
Authors: Sebastian Mirkin; Estella L Jones; Jacob F Mayer; Laurel Stadtmauer; William E Gibbons; Sergio Oehninger Journal: J Assist Reprod Genet Date: 2003-08 Impact factor: 3.412
Authors: Adrienne B Neithardt; James H Segars; Sasha Hennessy; Aidita N James; Jeffrey L McKeeby Journal: Fertil Steril Date: 2005-03 Impact factor: 7.329