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American Journal of Clinical Dermatology

, Volume 11, Issue 6, pp 399–411 | Cite as

Chronic Pruritus in the Absence of Specific Skin Disease

An Update on Pathophysiology, Diagnosis, and Therapy
  • Nicoletta Cassano
  • Gianpaolo TessariEmail author
  • Gino A. Vena
  • Giampiero Girolomoni
Review Article

Abstract

Chronic pruritus is a major and distressing symptom of many cutaneous and systemic diseases and can significantly impair the patient’s quality of life. Pruritus perception is the final result of a complex network involving dedicated nerve pathways and brain areas, and an increasing number of peripheral and central mediators are thought to be involved. Itch is associated with most cutaneous disorders and, in these circumstances, its management overlaps with that of the skin disease. Itch can also occur without associated skin diseases or primary skin lesions, but only with nonspecific lesions secondary to rubbing or scratching. Chronic itch with no or minimal skin changes can be secondary to important diseases, such as neurologic disorders, chronic renal failure, cholestasis, systemic infections, malignancies, and endocrine disorders, and may also result from exposure to some drugs. The search for the cause of pruritus usually requires a meticulous step-by-step assessment involving careful history taking as well as clinical examination and laboratory investigations.

Few evidence-based treatments for pruritus are available. Topical therapy, oral histamine H1 receptor antagonists, and phototherapy with UV radiation can target pruritus elicitation in the skin, whereas antiepileptic drugs, opioid receptor antagonists, and antidepressants can block signal processing in the CNS.

Keywords

Atopic Dermatitis Primary Biliary Cirrhosis Naltrexone Polycythemia Vera Nalbuphine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

No sources of funding were used to prepare this review. Each of the authors contributed to the conception of the article and to the literature search and the synthesis and interpretation of the data. Each of the authors drafted and revised the manuscript and approved the final version. The authors have no conflicts of interest that are directly relevant to the content of this review.

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Authors and Affiliations

  • Nicoletta Cassano
    • 1
  • Gianpaolo Tessari
    • 2
    Email author
  • Gino A. Vena
    • 1
  • Giampiero Girolomoni
    • 2
  1. 1.Second Dermatology Clinic MIDIM DepartmentUniversity of BariBariItaly
  2. 2.Section of Dermatology and Venereology, Department of Biomedical and Surgical SciencesUniversity of VeronaVeronaItaly

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