Chapter 72

Skin Manifestations of Paediatric Metabolic Syndrome

Gregor Holzer

Gregor Holzer

Department of Dermatology, Donauspital SMZ Ost, Vienna, Austria

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Beatrix Volc-Platzer

Beatrix Volc-Platzer

Department of Dermatology, Donauspital SMZ Ost, Vienna, Austria

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First published: 20 November 2019

Summary

Metabolic syndrome (MetS) has emerged as a new epidemic not only in adults but also in children and adolescents. It comprises a cluster of cardiovascular risk factors such as hypertension, visceral obesity, dyslipidaemia and altered glucose metabolism, i.e. glucose intolerance. Visceral obesity and insulin resistance (IR), together with latent inflammation, represent the core pathophysiology. Anthropomorphic and – less easy to measure and compare in young age groups – laboratory parameters are used for diagnosis. Similar to other systemic diseases, skin signs and conditions can provide diagnostic clues to the risk factors of the MetS. (Pseudo-)acanthosis nigricans, fibroma pendulans and striae distensae are significantly associated with obesity, insulin resistance and diabetes. Obesity and diabetes mellitus promote cutaneous infections, such as erysipelas and intertrigo. Skin signs due to hyperandrogenaemia such as acne vulgaris, hirsutism and androgenetic alopecia develop in young females and may be associated with obesity and/or polycystic ovary syndrome (PCOS). Hidradenitis suppurativa is associated with overweight and obesity in both genders. Psoriasis worsens in obese children and young adults, mainly due to the release of proinflammatory cytokines from fat tissue. The association between body mass index and severity of psoriasis has been demonstrated in several cohorts. The high prevalence of the MetS among psoriasis patients is already discernible among paediatric psoriasis patients, as several risk factors of the MetS can be demonstrated in this patient group. Recently, neonatal obesity has been described to be associated with an increased risk of atopic dermatitis (AD) in infancy.

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