Phenotypic Clusters and Multimorbidity in Hypermobile Ehlers-Danlos Syndrome

Area of Science:

• Genetics and Genomics
• Clinical Medicine
• Rheumatology

Background:

• Hypermobile Ehlers-Danlos syndrome (hEDS) is a heritable connective tissue disorder characterized by joint hypermobility and other symptoms.
• Phenotypic variability and associated comorbidities in hEDS are not fully understood, complicating diagnosis and management.
• Existing diagnostic criteria and assessment tools may not adequately capture the full spectrum of hEDS manifestations.

Purpose of the Study:

• To investigate phenotypic penetrance and associated comorbidities in a large cohort of patients with hEDS.
• To enhance diagnostic and treatment guidelines for hEDS by understanding its diverse clinical presentations.
• To improve the accuracy of hEDS diagnosis through comprehensive phenotyping.

Main Methods:

• A retrospective clinical study involving 2149 clinically diagnosed hEDS patients.
• Utilized a self-reported survey on diagnostic and comorbid conditions prevalence from May 2021 to July 2023.
• Applied K-means clustering to analyze survey responses and compare across gender groups.

Main Results:

• Identified three distinct patient groups based on clinical manifestations and multimorbidity patterns across organ systems.
• Highlighted significant diversity within the hEDS population beyond current diagnostic guidelines.
• Found Beighton scores to be unreliable for phenotyping multimorbidity in hEDS patients.

Conclusions:

• This study provides comprehensive data on hEDS phenotypic presentation and comorbidity prevalence.
• Distinct patient groups underscore the heterogeneity of hEDS, necessitating a move beyond current diagnostic limitations.
• Emphasizes the critical need for comprehensive, multidisciplinary care tailored to individual hEDS patient profiles.