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Updated: Dec 11, 2025

Protocol for Human Blastoids Modeling Blastocyst Development and Implantation
Published on: August 10, 2022
A visualized clinical model predicting good quality blastocyst development in the first IVF/ICSI cycle
Feng Xiong1, Sisi Wang1, Qing Sun1
1Shenzhen Key Laboratory of Reproductive Immunology for Peri-Implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Fertility Center, Shenzhen Zhongshan Urology Hospital, Shenzhen Guangdong 518045, People's Republic of China.
A new visualized nomogram model accurately predicts good quality blastocyst (GQB) formation in first-time IVF/ICSI patients. Key predictors include maternal age, anti-Müllerian hormone levels, and oocyte yield, aiding clinical counseling.
Area of Science:
- Reproductive Medicine
- In Vitro Fertilization (IVF)
- Embryology
Background:
- Predicting good quality blastocyst (GQB) formation is crucial for successful in vitro fertilization (IVF) and intracytoplascial sperm injection (ICSI) cycles.
- Accurate prediction models can optimize patient counseling and treatment strategies.
Purpose of the Study:
- To develop and validate a visualized clinical model for predicting good quality blastocyst (GQB) formation in patients undergoing their first IVF/ICSI cycle.
- To identify key predictors of GQB development.
Main Methods:
- Retrospective analysis of 4783 patients from their first IVF/ICSI cycle (January 2015 - December 2019).
- Development of a nomogram model using LASSO regression on a training set (n=3826) to identify critical predictors.
- Validation of the model's predictive accuracy and discriminative ability using receiver operating characteristic (ROC) and calibration curves on a separate testing set (n=957).
Main Results:
- Maternal age, maternal serum anti-Müllerian hormone (MsAMH) concentration, and the number of oocytes retrieved were identified as significant predictors of GQB formation.
- The nomogram model demonstrated strong predictive ability with Area Under the Curve (AUC) values of 0.831, 0.734, and 0.748 for predicting ≥1, ≥3, and ≥5 GQB in the training set, respectively.
- Validation in the testing set showed similar predictive performance (AUCs of 0.805, 0.695, and 0.707 for ≥1, ≥3, and ≥5 GQB).
Conclusions:
- The developed visualized nomogram model offers significant predictive value for GQB development in the context of initial IVF/ICSI cycles.
- This tool can enhance clinical counseling for patients undergoing their first IVF/ICSI treatment.
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