Document Detail

Prediction of pregnancy rate by blastocyst morphological score and age, based on 1,488 single frozen-thawed blastocyst transfer cycles.
MedLine Citation:
PMID:  20674914     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVE: To present an estimation of the pregnancy rate after IVF or intracytoplasmic sperm injection stratified by blastocyst morphology and age.
DESIGN: Retrospective analysis.
SETTING: Private IVF clinic.
PATIENT(S): A total of 1,488 single frozen-thawed blastocyst transfer cycles.
INTERVENTION(S): All frozen-thawed blastocysts used in the study were obtained in the patients' first oocytes retrieval cycles.
MAIN OUTCOME MEASURE(S): Clinical pregnancy rate (CPR), viable pregnancy rate (VPR), and delivery rate (DR) according to blastocyst morphological score (Gardner and Schoolcraft score) in three different age groups: women aged 22-33 years, 34-37 years, and 38-45 years.
RESULT(S): The quality of blastocysts degraded as age group increased. The proportions of good-quality blastocysts (grades 4 and above) were 62.3%, 56.3%, and 41.1% in age groups of 22-33 years, 34-37 years, and 38-45 years. Within the same blastocyst quality, CPR, VPR, and DR tended to be lower with increased age. Chances of pregnancy were reduced by 60% or more for women 38 years and older with blastocyst morphology of grades 1 and 2. Significant trends were observed for both age and blastocyst morphology groups.
CONCLUSION(S): There was a significant correlation between blastocyst quality and CPR, VPR, and DR in addition to the influence of age on the three rates. The findings may help predict successful pregnancy in single-blastocyst transfer.
Sakae Goto; Takashi Kadowaki; Satomi Tanaka; Hiromi Hashimoto; Shoji Kokeguchi; Masahide Shiotani
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Publication Detail:
Type:  Journal Article     Date:  2010-08-01
Journal Detail:
Title:  Fertility and sterility     Volume:  95     ISSN:  1556-5653     ISO Abbreviation:  Fertil. Steril.     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-02-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372772     Medline TA:  Fertil Steril     Country:  United States    
Other Details:
Languages:  eng     Pagination:  948-52     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.
Hanabusa Women's Clinic, Kobe, Japan.
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