Follicular occlusion, mast cell disease, and eczema were common presentations among patients with hypermobile Ehlers-Danlos syndrome (hEDS), in a study of nearly 500 individuals.
The genetic cause of hEDS, a common inherited connective tissue disorder, remains unknown, wrote Alan Snyder, MD, of the department of dermatology and dermatologic surgery at Medical University of South Carolina, Charleston, and colleagues.
Previous research suggests that changes in dermal mechanics predispose these patients to a range of skin conditions including mast cell activation disorder (MCAD) spectrum and chronic spontaneous urticaria, abnormal scars or wound healing, piezogenic papules, dyshidrosis, skin laxity or softness, easy bruising, local anesthesia resistance, keratosis pilaris, striae, and hidradenitis suppurativa, the researchers wrote.
However, data on these and other dermatologic manifestations of hEDS are limited, they said.
The diagnosis of hEDS will continue to be made more frequently and carefully, as the condition becomes more recognized and understood in the medical community, especially with anticipated capabilities of genetic testing, Dr. Snyder said in an interview.
"Being able to be aware of disease-specific comorbidities, such as those discovered in this study, allows providers to better stratify phenotypes and improve patient disease co-management," he said.
In the study, published in the Journal of the American Academy of Dermatology, the researchers reviewed data on 1,364 patients with ICD-10 or ICD-9 codes for hEDS or EDS unspecified who were seen at a single institution between June 2005 and May 2022. Most of the patients were White (95.4%) and female (86.7%); the average age was 29.2 years.
Of the 1,364 patients included in the chart review, 497 (36.4%) had documented skin manifestations. Of these, 118 (24.2%) had disorders of follicular occlusion (12 had hidradenitis suppurativa, 32 had folliculitis, and 74 had acne); 112 (23%) had eczema or atopic dermatitis, 98 (19.7%) had mast cell disorder, 32 (6.4%) had psoriasis, and 32 (6.4%) had wound healing issues (16 had hypertrophic keloids/scarring, 5 had abscesses, 3 had abnormal bruising, and 8 had other would healing issues).
The study also included results of a multiple-choice patient survey from 1,354 individuals. In the survey, approximately two-thirds of patients reported abnormal scarring, abnormal wound healing, and cutaneous laxity (61.7%, 69.0%, and 71.0%, respectively).
The findings were limited by several factors including the retrospective study design, lack of testing to confirm hEDS diagnosis, and the potential interdisciplinary selection bias for diagnoses, the authors noted.
However, the results support previous studies showing increased rates of occlusive conditions in hEDS and higher rates of acne, folliculitis, and psoriasis, and highlight the need for clinician education to manage patients and promote better outcomes, the researchers concluded.
Data Enhance Clinical Awareness
"Given the increasingly understood relation between TH2-directed and mast-cell mediated diseases and hEDS, it was not necessarily a surprise to find the increased prevalence of atopy and mast cell disease, but rather an interesting confirmation, within the limitations that exist with retrospective chart review," Dr. Snyder told this news organization. "While it may make some intuitive sense that certain cohorts with higher risk of HS may have a higher risk of acne, this had not been reported in the literature to date," he noted. "Given the high levels of patient reported issues with scarring and wound healing, I was surprised that so few analogous diagnoses were physician-reported in the medical records."
In clinical practice, "health care professionals and patients need to be aware hEDS is associated with high rates of eczematous, mast-cell mediated and follicular occlusive cutaneous disorders," Dr. Snyder said in an interview. "There seems to be a discrepancy between patients and physician awareness of scarring or wound healing issues in this patient population," he added.
Looking ahead, "we need to better research and characterize the various hEDS phenotypes to understand who is at highest risk for various TH2-mediated or follicular occlusive disorders," said Dr. Snyder. "Moreover, a greater understanding is needed of the wound healing inadequacies that predispose these patients to poor outcomes during dermatologic surgery," he said.
The study was supported by the Ehlers Danlos Society and the Milton and Tamar Maltz Family Foundation. The researchers had no financial conflicts to disclose.
This article originally appeared on MDedge, part of the Medscape Professional Network.
Comments