期刊
ORAL DISEASES
卷 27, 期 3, 页码 611-623出版社
WILEY
DOI: 10.1111/odi.13577
关键词
nerve injury; neuropathic; neuropathy; QST; thermal; trigeminal
资金
- National Research Foundation of Korea [2019R1G1A1004713]
- National Research Foundation of Korea [2019R1G1A1004713] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Three heat and cold pain phenotypes were identified in patients with unilateral trigeminal nerve injury, with heat hypoalgesia being more common than heat hyperalgesia. Heat hypoalgesia was associated with subjective negative symptoms, while thermal hyperalgesia showed little relationship with negative and positive symptoms. The cold pain phenotypes differed between inferior alveolar nerve and lingual nerve injuries.
Objectives To investigate the thermal pain phenotypes using QST in patients with unilateral trigeminal nerve injury and to explore whether these different thermal pain phenotypes are associated with clinical and psychophysical characteristics. Methods This retrospective study included 84 patients diagnosed with posttraumatic trigeminal neuropathy involving inferior alveolar nerve (IAN) and lingual nerve (LN). Data on clinical characteristics, subjective symptoms including hypoesthesia, dysesthesia, and allodynia, and objective signs using thermal QST were collected and explored. Results Three heat (heat hypoalgesia, heat hyperalgesia, and within normal range) and cold pain phenotypes (cold hypoalgesia, cold hyperalgesia, and within normal ranges) were identified, respectively. Thermal hypoalgesia was more frequently observed than thermal hyperalgesia. Heat hypoalgesia regardless of cold pain abnormalities appears to be associated with subjective negative symptoms, while thermal hyperalgesia seems to have little relationship with negative and positive symptoms. Thermal pain phenotypes were associated with loss of innocuous thermal sensation. Unlike heat pain phenotypes, cold pain phenotypes differed between IAN injury and LN injury. Conclusion The thermal pain phenotypes identified in this study seem to be related to clinical and psychophysical findings differently. These results would be a good starting point for assessing posttraumatic trigeminal neuropathy and interpreting the thermal QST results.
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