[Comorbidities and psoriasis. Impact on clinical practice].

Psoriasis is a genetically determined, chronic inflammatory systemic disease. Besides skin symptoms, patients with moderate to severe forms of psoriasis show an association with other diseases, referred to as comorbidities. Metabolic disorders (e.g. diabetes mellitus, insulin resistance, dyslipidemia mainly in obese patients) and cardiovascular diseases (e.g. arterial hypertension, coronary artery disease, myocardial infarction and stroke) are of importance as they can increase patients' mortality. In addition, psychiatric diseases are more frequent in psoriasis patients and influence the therapeutic approach. The dermatologist in most cases is the primarily consulted physician for patients with psoriasis and therefore plays the role as a gatekeeper managing therapy. He is responsible for the early diagnosis of comorbidities and insuring their appropriate management. The anti-psoriatic treatment has to be adapted to existing comorbidities and their systemic treatments. The following article provides information on psoriatic comorbidities and their consequences for daily practice.