Recommendations for standardized human pedigree nomenclature

Area of Science:

• Human Genetics
• Medical Informatics

Background:

• Inconsistent usage of human pedigree symbols complicates genetic evaluations and research.
• Existing symbols lack standardization for common and advanced reproductive scenarios.

Purpose of the Study:

• To establish universal standards for human pedigree nomenclature.
• To address inconsistencies in symbol representation for various family and reproductive situations.

Main Methods:

• Formation of the Pedigree Standardization Task Force (PSTF) by the National Society of Genetic Counselors.
• Selection of nomenclature based on usage, consistency, computer compatibility, and adaptability.
• Review of preliminary recommendations by genetic professionals at national meetings and via direct outreach.

Main Results:

• Presents recommendations for standardized human pedigree nomenclature.
• The proposed nomenclature aims for consistency and adaptability to technological advances.

Conclusions:

• Adoption of standardized nomenclature in training, exams, publications, and software is recommended.
• Standardization will enhance interpretation accuracy, improve patient care, and facilitate research communication.