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Analgesia and Pain Management01:25

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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
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Chronic Post-Ischemia Pain Model for Complex Regional Pain Syndrome Type-I in Rats
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[Schizophrenia and pain reactivity].

Olivier Bonnot1, Sylvie Tordjman

  • 1Service de Psychopathologie de l'Enfant et de l'Adolescent, APHP, Groupe Hospitalier Pitié Salpêtrière, Centre Référent Maladies Rares à Expression Psychiatrique, Paris, France. olivier.bonnot@psl.aphp.fr

Presse Medicale (Paris, France : 1983)
|September 9, 2008
PubMed
Summary

Patients with schizophrenia may not be insensitive to pain but rather express it differently. Research suggests a decreased behavioural reactivity to pain, not analgesia, in schizophrenia patients.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Pain Research

Context:

  • Historically, pain was often disregarded in medical practice.
  • Schizophrenia, a complex disorder affecting 0.5-1% of the population, is increasingly linked to neurodevelopmental factors.
  • Evidence suggests patients with schizophrenia exhibit a relative insensitivity to physical pain, prompting further investigation.

Purpose:

  • To review and critically analyze scientific literature on pain perception and reactivity in schizophrenia.
  • To evaluate the relevance of findings to neurodevelopmental hypotheses and vulnerability models of schizophrenia.

Summary:

  • Clinical and experimental data indicate a decrease in Behavioural Reactivity to Pain (BRP) in schizophrenia patients, though not necessarily analgesia.
  • The observed decrease in BRP may stem from communication, social skills, and emotional expression differences, rather than a lack of pain sensation.
  • This reduced BRP could be a significant factor within the stress-vulnerability model of schizophrenia, potentially increasing anxiety and risk.

Impact:

  • Findings challenge the notion of simple pain insensitivity in schizophrenia, suggesting a more complex interplay of factors.
  • Highlights the need for objective research protocols to differentiate between feeling and expressing pain in schizophrenia.
  • Suggests exploring pain reactivity in individuals vulnerable to schizophrenia could enhance understanding and early detection within vulnerability check-ups.