[Atopic dermatitis and general medical comorbidities].

Area of Science:

• Dermatology
• Immunology
• Internal Medicine

Background:

• Atopic dermatitis (AD) is a common chronic inflammatory skin condition with systemic inflammation.
• Emerging systemic treatments highlight the need to understand AD's comorbidities.
• Research increasingly focuses on the general medical conditions associated with moderate-to-severe AD.

Purpose of the Study:

• To review and synthesize current research on the diverse medical comorbidities associated with atopic dermatitis.
• To examine the evidence linking AD to atopic, autoimmune, cardiovascular, and infectious diseases.

Main Methods:

• Systematic review and synthesis of existing epidemiological and clinical studies.
• Analysis of data from cross-sectional studies and investigations across different geographical regions.

Main Results:

• Confirmed increased risk of atopic diseases (e.g., allergic asthma) and dermatological autoimmune conditions (e.g., vitiligo, alopecia areata) in AD patients.
• Demonstrated elevated risk for internal autoimmune diseases (e.g., inflammatory bowel disease, rheumatoid arthritis) in individuals with AD.
• Noted conflicting evidence regarding cardiovascular disease risk, with US studies showing a correlation not consistently replicated in German, Danish, or Canadian studies.
• Identified increased susceptibility to viral infections in AD patients.

Conclusions:

• Atopic dermatitis is associated with a spectrum of comorbidities, including atopic and autoimmune diseases.
• The relationship between AD and cardiovascular disease requires further clarification, potentially influenced by geographical and healthcare system factors.
• AD patients exhibit a heightened vulnerability to infections, particularly viral ones.