Psychosomatic factors in pruritus

Area of Science:

• Psychodermatology
• Psychiatry
• Neuroscience

Background:

• The relationship between pruritus (itching) and the psyche is bidirectional and complex.
• Psychophysiological evidence and psychopathological explanations elucidate this intricate association.
• The interplay can manifest as pruritic conditions with psychiatric effects, psychosocially aggravated dermatoses, or psychiatric disorders causing itch.

Purpose of the Study:

• To explore the intricate relationship between pruritus and the psyche.
• To classify the different ways psychiatric factors influence pruritus and vice versa.
• To outline a multidisciplinary management approach for chronic pruritus with comorbid psychiatric conditions.

Main Methods:

• Review of psychophysiological evidence and psychopathological explanations.
• Classification of pruritus-psyche interactions into three categories.
• Discussion of pharmacotherapeutic agents for managing chronic pruritus with comorbid depression and/or anxiety.

Main Results:

• The pruritus-psyche relationship is reciprocal, impacting disease course and treatment.
• Three main interaction patterns were identified: psychiatric sequelae, psychosocial aggravation, and psychiatric causation of pruritus.
• Pharmacological options include SSRIs, mirtazapine, TCAs, and anticonvulsants; antipsychotics are indicated for specific conditions like schizophrenia-related itch.

Conclusions:

• Chronic pruritus management necessitates a multidisciplinary approach, integrating dermatologic, somatosensory, cognitive, and emotional care.
• Pharmacotherapy plays a crucial role, with established agents for comorbid depression/anxiety and specific antipsychotics for psychosis-induced itch.
• Further research is needed to verify the efficacy of agents like neurokinin receptor-1 antagonists.