Diagnostic sensitivity of paraspinal needle EMG in cervical radiculopathy

Amaç: Servikal radikiilopatide paraspinal iğne elektromyografisi (EMG) anormalliklerinin sıklığını değerlendirmeyi hedefledik. Yöntem: Elektromyografik olarak kesin servikal radikülopati tanısı alan, aynı zamanda radiküler ağrı ve objektif nörolojik defısiti de bulunan hastaların kayıtları incelendi. Tanı, paraspinal kaslarda fıbrillasyon potansiyelleri veya positif keskin dalgaların bulunmasıyla kondu. Bu koşulun karşılanmadığı durumlarda, bu tür spontan aktivite veya dev motor ünite aksiyon potansiyellerinin en az 2 üst ekstremite kasında myotomal dağılımda bulunması gerekiyordu. Bulgular: İncelediğimiz 46 hastanın 31 (% 67.5) inde paraspinal EMG anormallikleri mevcuttu. Olgularınl4 (% 30.5) ünde bu anormalliğin tek başına bulunduğu dikkati çekiyordu. Semptomları kısa süreli olan olgularla, daha uzun süredir hasta olanlar kıyaslandığında, spontan aktivitenin mevcudiyeti açısından önemli fark izlenmedi (p>0.05). Sonuç: Paraspinal EMG, yüksek tanı değerine sahip olması nedeniyle, servikal radikülopatinin tüm evrelerinde gündelik elektodiyagnostik çalışmaların bir parçası olmalıdır.

Servikal radikülopati tanısında paraspinal iğne EMG'sinin duyarlılığı

Purpose: To assess the frequency ofparaspinal needle electromyography (EMG) abnormalities in cervical adiculopathy. Methods: The charts of patients with adicular pain and objective neurological deficits, in whom an electromyographically definite cervical radiculopathy had been established, were reviewed. Diagnostic criteria included fibrillation potentials or positive sharp waves in the paraspinal muscles. Alternatively, such spontaneous activity or giant motor unit potentials had to be present in a myotomal pattern in at least 2 muscles of the upper extremity. Results: Out of 46 patients analyzed, paraspinal EMG abnormalities were detected in 31 (67.5%). In 14 (30.5%), this was the sole electrodiagnostic finding. There was no significant difference in the incidence of spontaneous activity in the subjects with shorter symptom duration, compared to individuals with a more protracted course (p>0.05). Conclusion: Because of the high diagnostic yield of paraspinal muscle EMG in cervical radiculopathy, this examination should be an integral part of routine electrodiagnostic studies at all stages of this condition.

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