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Palliative Care165 papers

Neurological pain disorder

Last edited: 4/15/2026

Overview

Neurological pain disorders encompass conditions where pain is a central feature, often influenced by circadian rhythms and comorbid mental health issues. Genetic factors, such as PER3 VNTR polymorphisms, may modulate pain modulation systems, while there is a bidirectional relationship with mental illnesses like depression and anxiety 12.

Diagnosis

  • Assess circadian variation in pain modulation using conditioned pain modulation paradigms, considering PER3 VNTR polymorphism 1.
  • Evaluate for comorbid mental health conditions, particularly depression and anxiety, given their bidirectional relationship with pain disorders 2.
  • Management

  • Tailor pain management strategies considering circadian rhythms and genetic predispositions 1.
  • Integrate psychological support and mental health interventions alongside pain management due to comorbidity 2.
  • Special Populations

  • Comorbidities: Patients with mental illness have an increased risk of developing pain disorders, and vice versa, necessitating comprehensive care addressing both aspects 2.
  • Key Recommendations

  • Consider genetic factors, such as PER3 VNTR polymorphisms, in assessing individual pain modulation variability (Evidence: Moderate) 1.
  • Implement concurrent mental health screening and treatment for patients with neurological pain disorders due to the bidirectional relationship with mental illness (Evidence: Strong) 2.
  • Monitor and manage circadian patterns in pain perception and modulation to optimize treatment efficacy (Evidence: Moderate) 1.
  • References

    1 Carvalho F, Pedrazzoli M, Gasparin A, Dos Santos F, Zortea M, Souza A et al.. PER3 variable number tandem repeat (VNTR) polymorphism modulates the circadian variation of the descending pain modulatory system in healthy subjects. Scientific reports 2019. link 2 Bondesson E, Larrosa Pardo F, Stigmar K, Ringqvist Å, Petersson IF, Jöud A et al.. Comorbidity between pain and mental illness - Evidence of a bidirectional relationship. European journal of pain (London, England) 2018. link

    Original source

    1. [1]
      PER3 variable number tandem repeat (VNTR) polymorphism modulates the circadian variation of the descending pain modulatory system in healthy subjects.Carvalho F, Pedrazzoli M, Gasparin A, Dos Santos F, Zortea M, Souza A et al. Scientific reports (2019)
    2. [2]
      Comorbidity between pain and mental illness - Evidence of a bidirectional relationship.Bondesson E, Larrosa Pardo F, Stigmar K, Ringqvist Å, Petersson IF, Jöud A et al. European journal of pain (London, England) (2018)

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