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Cutaneous silent period in myofascial pain syndrome
Author(s) -
Kilinc Ozden,
Sencan Savas,
Ercalik Tulay,
Koytak Pinar Kahraman,
Alibas Hande,
Gunduz Osman Hakan,
Tanridag Tulin,
Uluc Kayihan
Publication year - 2018
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.25964
Subject(s) - medicine , silent period , pathogenesis , central sensitization , myofascial pain syndrome , anesthesia , sensitization , pathology , nociception , stimulation , receptor , alternative medicine , transcranial magnetic stimulation , immunology
: An increased response to painful stimuli without spontaneous pain suggests a role of central hyperexcitability of pain pathways in the pathogenesis of myofascial pain syndrome (MPS). In this study we aimed to test the hypothesis that spinal pain pathways are affected in MPS. We used cutaneous silent period (CSP) parameters to demonstrate the hyperexcitability of spinal pain pathways in MPS. Methods : Twenty‐nine patients diagnosed with MPS and 30 healthy volunteers were included in the study. The CSP recordings were performed in the right upper and left lower extremities. Results : In both upper and lower extremities, patients had prolonged CSP latencies ( P = 0.034 and P = 0.049 respectively) and shortened CSP durations ( P = 0.009 and P = 0.008, respectively). Discussion : Delayed and shortened CSP in MPS patients implies dysfunction in the inhibitory mechanism of the spinal/supraspinal pain pathways, suggesting central sensitization in the pathogenesis of MPS and supporting our research hypothesis. Muscle Nerve 57 : E24–E28, 2018