Streamlining Diagnosis of Bardet-Biedl Syndrome: New Diagnostic Algorithm With Updated Criteria

International multidisciplinary consensus update of BBS diagnostic criteria, integrating molecular genetic findings into the algorithm

An international multidisciplinary group proposes updated diagnostic criteria for Bardet-Biedl syndrome (BBS), following an evidence-based process including patient organizations. Revised major criteria are: retinal dystrophy, obesity, renal anomalies/CAKUT, hypogonadism/genital anomalies, neurodevelopmental manifestations, and postaxial polydactyly. Diagnosis can also be established by positive genetic testing with at least 1 major criterion. This algorithm simplifies the diagnostic approach and facilitates access to available treatments.

Synthesis written by Geno'X. For the full original abstract, please refer to the source publication.

This update is welcome, particularly the explicit integration of genetics into the algorithm — a paradigm shift from the historically purely clinical criteria. It comes at a time when setmelanotide becomes available for BBS, making early and accurate diagnosis even more critical for treatment access.

Clinical impact: 2/3 · Evidence strength: 1/3 · Novelty: 1/2 · Sample size: 0/1 · Journal quality: 1/1 → Total: 5/10