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Year : 2022  |  Volume : 39  |  Issue : 2  |  Page : 74-78

Why electrophysiological reassessment is needed? The experience of our laboratory – A cross-sectional study

Department of Neurology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey

Correspondence Address:
Isil Yazici Gencdal
Department of Neurology, Neurophysiology, Istanbul Faculty of Medicine, Istanbul University, 34093 Fatih, İstanbul
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/nsn.nsn_233_21

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Introduction: Requesting repetition of an electrodiagnostic examination (EDX) for follow-up and/or diagnostic verification is common in the daily practice of a reference center. Objective: This study aimed to evaluate demographical and electrophysiological characteristics of the patients who were referred to a reference electrophysiology laboratory for reassessment, to explore the underlying reasons, and motives for ordering a reassessment. Methods: Patients who had at least one EDX study within the last year in one of the two different time periods (winter and summer) were included in the study. Their demographical features, preliminary diagnosis, and electrophysiological findings were assessed and compared with their previous EDX interpretations. Results: Thirty-five (14 female, 21 male) patients (7,7%) out of 457 patients from the winter period (November 11, 2018‒December 12, 2018) and 38 (20 female, 18 male) patients (7,8%) out of 487 patients from the summer period (July 01, 2019‒August 08, 2019) were included in the study. Age, gender, preliminary diagnosis, and the number of previous electrophysiologic tests were statistically similar between the two groups. The most common reason for reassessment was to verify or to follow-up on a diagnosis of motor neuron disease or polyneuropathy. Compared to the summer group, the patients who had previous EDX in a different center were more common in the winter group, mean duration between EDX studies was also shorter. Conclusion: In this study, we have inspected the patients referred to our laboratory within two different time frames in a year for a repeat EDX study. It was observed that the number of patients who underwent a repeat EDX was relatively low, and there was no significant difference not only in the preliminary diagnosis but also in the electrophysiological findings.

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