Standardized Criteria for Genomic Testing in the NICU

Area of Science:

• Neonatal Medicine
• Genetics
• Healthcare Policy

Background:

• Genetic disorders are common in neonatal intensive care units (NICUs), with many patients remaining undiagnosed despite established genomic testing benefits.
• Disparities in accessing genetic services exist across racial and birth weight (BW) categories within NICU populations.

Purpose of the Study:

• To evaluate the impact of a standardized clinical guideline for genomic testing in a NICU population.
• To assess changes in genetic service utilization, diagnosis rates, admission length, and hospital charges before and after guideline implementation.

Main Methods:

• A single-center, 19-month cohort study involving 2169 NICU patients, comparing outcomes pre- and post-guideline implementation.
• Primary outcomes included qualifying for and receiving genetic services and a diagnosis.
• Secondary outcomes focused on admission length and hospital charges.

Main Results:

• Standardized genomic care increased genetics consultations (25.6% vs 31.2%), genomic testing completion (9.0% vs 24.6%), and confirmed genetic diagnoses (8.2% vs 11.6%).
• Despite initial disparities in qualifying for services, all populations saw improved access post-guideline.
• Patients receiving genomic testing experienced reduced admission lengths (46 vs 24 days) and hospital charges ($561,536 vs $354,627).

Conclusions:

• Standardizing genomic care in the NICU is essential for equitable access to genetic testing and diagnosis.
• Genomic testing improves diagnostic yield and resource utilization, leading to shorter hospital stays and lower costs.
• Addressing disparities in healthcare access is crucial for optimizing outcomes in critically ill neonates.