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The Simplified SART Embryo Scoring System is Highly Correlated to Implantation and Live Birth in Single Blastocyst Transfers.

Friday, November 08, 2013 — Poster Session III

10:00 a.m. – 12:00 p.m.

FAES Academic Center (Upper-Level Terrace)




  • RJ Heitmann
  • MJ Hill
  • KS Richter
  • AH DeCherney
  • EA Widra


Objective: To estimate the correlation between the simplified SART embryo scoring system and ART cycle outcomes in single blastocyst transfers (SBT). Materials and Methods: All fresh, autologous SBT cycles from a large ART center from 2010 were analyzed. Blastocysts were given a single grade of good, fair, or poor based upon SART criteria. Multiple logistic regression assessed the impact of the SART grade on embryo implantation, clinical pregnancy, and live birth. Results: 720 fresh, autologous SBT cycles were analyzed. The overall live birth rate was 52% for the SBT cycles and included both elective and non-elective SBT. Chi square analysis showed higher live birth in good grade embryos as compared to fair (p=0.03) and poor (p=0.02). Univariate binary logistic regression analysis showed SART embryo grading to be significantly correlated with both implantation and live birth (p<0.01). The significance of the SART grade persisted when patient age and the stage of the blastocyst were controlled for with multiple logistic regression. Conclusion: The simplified SART embryo scoring system is highly correlated to implantation and live birth in SBT. Patients with a good grade are excellent candidates for a single blastocyst transfer.

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