Cited by 82Urinary Bladder and Prostate ResearchPain Mechanisms and TreatmentsPain Management and Treatment

Segmental hyperalgesia to mechanical stimulus in interstitial cystitis/bladder pain syndrome: Evidence of central sensitization

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Lai, H. Henry, Gardner, Vivien, Ness, Timothy J., Gereau, Robert W.·2014·Journal of Urology

Abstract

PURPOSE: We investigate if subjects with interstitial cystitis/bladder pain syndrome demonstrate mechanical or thermal hyperalgesia, and whether the hyperalgesia is segmental or generalized (global). MATERIALS AND METHODS: Ten female subjects with interstitial cystitis/bladder pain syndrome and 10 age matched female controls without comorbid fibromyalgia or narcotic use were recruited for quantitative sensory testing. Using the method of limits, pressure pain and heat pain thresholds were measured. Using the method of fixed stimulus, the visual analog scale pain experienced was recorded when a fixed pressure/temperature was applied. RESULTS: The visual analog scale pain rated by female subjects with interstitial cystitis/bladder pain syndrome was significantly higher than that rated by female control subjects when a fixed mechanical pressure (2 or 4 kg) was applied to the suprapubic (T11) area (p = 0.028). There was an up shift of the stimulus-response curve, which corresponded to the presence of mechanical hyperalgesia in the suprapubic area in interstitial cystitis/bladder pain syndrome. However, the visual analog scale pain rated by subjects with interstitial cystitis/bladder pain syndrome was not different from that rated by controls when a fixed pressure was applied at the other body sites (T1 arm, L4 leg, S2-3 sacral). No difference in visual analog scale pain rating was noted when a fixed heat stimulus (35C or 37C) was applied to any of the body sites tested (T1, T11, L4, S2). There was no difference in pressure pain thresholds or thermal pain thresholds between subjects with interstitial cystitis/bladder pain syndrome and controls. CONCLUSIONS: Female subjects with interstitial cystitis/bladder pain syndrome showed segmental hyperalgesia to mechanical pressure stimulation in the suprapubic area (T10-T12). This segmental hyperalgesia may be explained in part by spinal central sensitization.

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  • Evidence of central pain amplification has been found in interstitial cystitis; for example, segmental hyperalgesia in response to mechanical pressure stimulation in the suprapubic area (T10-T12) has been observed in interstitial cystitis patients.

    “Regarding the involvement of CS, evidence of central pain amplification has been found in IC; for example, segmental hyperalgesia in response to mechanical pressure stimulation in the suprapubic area (T10–T12) has been observed in IC patients [48].”

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Authors
Lai, H. H., Gardner, V., Ness, T. J., & Gereau, R. W.
Affiliations
  • Washington University in St. Louis (US)
  • University of Alabama at Birmingham (US)
Corresponding author
Lai, H. Henry
Venue
Journal of Urology
Published
2014-05
Volume
191
Issue
5
Pages
1294-1299
ISSN
  • 0022-5347 (ISSN-L)
  • 1527-3792
OpenAlex
W1965066347
Cited by
81
References
26
Citations by year
2026: 7 · 2025: 4 · 2024: 4 · 2023: 4 · 2022: 7 · 2021: 9 · 2020: 11 · 2019: 7 · 2018: 4 · 2017: 4 · 2016: 7 · 2015: 7 · 2014: 5
FWCI
7.73
Type
journal article
Language
en
Open access
Locations
  • The Journal of Urology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-094964, K08DK094964)
  • National Institute of Neurological Disorders and Stroke (NS048620)
Topics
  • Health Sciences › Medicine › Urology › Urinary Bladder and Prostate Research
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Health Sciences › Medicine › Anesthesiology and Pain Medicine › Pain Management and Treatment
Keywords
interstitial cystitis, mechanical hyperalgesia, central sensitization, pressure pain threshold, thermal pain threshold, quantitative sensory testing, spinal cord
MeSH terms
Adult, Aged, Humans, Hyperalgesia, Middle Aged, Pain Measurement, Pain Threshold, Cystitis, Interstitial, Young Adult, Central Nervous System Sensitization

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