Reducing inter-observer variability in embryo evaluation by means of training courses

Area of Science:

• Reproductive medicine
• Embryology
• Medical education

Background:

• Embryologists play a crucial role in assisted reproductive technologies.
• Standardized training is essential for consistent and accurate embryo assessment and clinical decision-making.
• Variability in skill levels among junior embryologists can impact treatment outcomes.

Purpose of the Study:

• To evaluate the effectiveness of a training session for junior embryologists.
• To compare the performance of junior embryologists before and after training.
• To assess the agreement between junior and senior embryologists' assessments.

Main Methods:

• A training session was provided to 62 junior embryologists.
• Participants were tasked with evaluating embryo quality and determining appropriate clinical decisions.
• Performance metrics included success rates for classification and decision-making, and kappa values for inter-rater agreement.

Main Results:

• Post-training, junior embryologists showed significant improvement in embryo classification (48.4% to 59.7%) and clinical decision-making (54.7% to 68.7%).
• Inter-rater agreement, measured by kappa values, increased from k=0.32 to k=0.54 after training.
• Agreement between junior and senior embryologists improved, with kappa values for clinical decisions rising from 0.54 to 0.68.

Conclusions:

• Training courses are effective in enhancing the skills of junior embryologists.
• Structured training improves consistency and agreement in embryo assessment and clinical decision-making.
• The findings support the implementation of standardized training protocols in embryology to bridge the experience gap.