تشخيص افتراقي كلنت اوليه و نارواني طبيعي در كودكان

Differential diagnosis of primary stuttering and normal nonfluency in children

Introduction: Early Diagnosis and intervention of primary stuttering is the key for prevention of chronic developmental stuttering. Normal nonfluency of children under 5 years old is an important differential diagnosis of primary stuttering. The goals of this research are finding accuracy of diagnoses on children referred to Saba speech therapy Clinic labeled as normal nonfluenty and introducing more precise methods ofdifferential diagnosis. Materials & methods:The research method is case series study in which through simple sampling procedure stuttering children referring to Saba Clinic during 1382 & 83 were studied. Research tools and data collection consist of: questionnair, spontaneous speech sample recording and determining VOT using laryngograph processor. It should be noted that due to lack of normative data of VOT , the VOT of normal subjects are analysed and compared with stutterers. Findings :Basedon the numerical criteria, our findings indicated that only one ofstutterers was normal nonfluent and the others were stutteres. voT data ofstutteres also were compared to that ofnormal matched children. The results revealed that all ofstutterers had significantly (p<0/05) longer VOT than normal subjects. Conclusion:This study provides a good numeric and clinical measure for speech language pathologists for diagnosis of primary stuttering and normal nonfluency. Morover,. using voT would help accurate diagnosis.