Basic and clinical aspects of visceral sensation: transmission in the CNS

Neurogastroenterol Motil. 2005 Aug;17(4):488-99. doi: 10.1111/j.1365-2982.2005.00671.x.

Abstract

Pain and discomfort are the leading cause for consultative visits to gastroenterologists. Acute pain should be considered a symptom of an underlying disease, thereby serving a physiologically important function. However, many patients experience chronic pain in the absence of potentially harmful stimuli or disorders, turning pain into the primary problem rather than a symptom. Vagal and spinal afferents both contribute to the sensory component of the gut-brain axis. Current evidence suggests that they convey different elements of the complex sensory experience. Spinal afferents play a key role in the discriminatory dimension, while vagal input primarily affects the strong emotional and autonomic reactions to noxious visceral stimuli. Drugs, surgical and non-pharmacological treatments can target these pathways and provide therapeutic options for patients with chronic visceral pain syndromes.

Publication types

  • Review

MeSH terms

  • Afferent Pathways / anatomy & histology
  • Afferent Pathways / physiology*
  • Animals
  • Central Nervous System / anatomy & histology
  • Central Nervous System / physiology*
  • Humans
  • Sensation / physiology*
  • Viscera / innervation*
  • Visceral Afferents / anatomy & histology
  • Visceral Afferents / physiology*