Estresse psicológico no prognóstico de recidiva pós-operatória de cicatrizes fibroproliferativas

• Ano de defesa: 2011
• Autor(a) principal: Furtado, Fabianne [UNIFESP]
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de São Paulo (UNIFESP)
• Palavras-chave em Português: Cicatriz hipertrófica; Período pós-operatório; Prognóstico; Quelóide; Recidiva; Resposta galvânica da pele; Estresse psicológico
• Link de acesso: http://repositorio.unifesp.br/handle/11600/9489

Introduction: Chronicity, prolonged and painful treatments and high rates of recurrence make the pathogenesis of keloid and hypertrophic scars the constant target of research. Some hypotheses propose a relationship of immune, genetic, metabolic, vascular, endocrine, sebaceous and viral factors. The influence of the nervous system on the induction and exacerbation of skin diseases has already been well defined in dermatopathies, such as psoriasis, vitiligo, and atopic dermatitis. However, for fibroproliferative scars, there is still no evidence of the importance of psychological stress in the formation of these injuries. Objective: Our goal was to investigate psychological stress on the prognosis of the postoperative recurrence of fibroproliferative scars. Methods: Patients with fibroproliferative scars (n=25), candidates for surgical resection and postoperative radiotherapy, had their psychological stress evaluated on the day before the surgical procedure. The parameters evaluated were pain and itching (Visual Numerical Scale), quality of life (Questionnaire QualiFibro/Plastic Surgery-UNIFESP), perceived stress (Perceived Stress Scale), depression and anxiety (Hospital Depression and Anxiety Scale), salivary cortisol and minimum and maximum galvanic skin responses (GSR) at rest and under stress (i.e., while the questionnaires were being filled out). Patients were evaluated during the 3rd, 6th, 9th and 12th months of postoperative care. During each return visit, two experts classified the lesions as non-recurrent and recurrent. Results: The recurrence group presented the greatest values in GSR during a stressful situation. The chance of recurrence increased by 34% at each increase of 1000 arbitrary units in maximum GSR during stress. Conclusion: Psychological stress influenced the recurrence of fibroproliferative scars.