The journal of spinal cord medicine · 2026
Electrophysiologic testing aids early diagnosis of anterior spinal cord infarction.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Gampa Nikhil, Ramesh Rithvik, Ranganathan Lakshmi Narasimhan, Shanmugam Sundar, Hazeena Philo, Janarthanan S, Rangasami Rajeshwaran, Gomathi T, Kumar Hemanth
Аннотация
INTRODUCTION: Anterior spinal artery syndrome (ASAS) presents with motor paralysis and dissociated sensory loss. Early diagnosis is difficult due to often normal initial MRI findings. Neurophysiological testing may offer critical diagnostic clues in the acute phase before imaging changes appear.
CASE PRESENTATION: A 62-year-old man with vascular risk factors presented with acute-onset flaccid paraplegia and loss of pain and temperature sensation below the hips, with preserved vibration sense - suggestive of ASAS. MRI of the spine at presentation and at 72 h showed no abnormalities. However, nerve conduction studies revealed absent tibial F-waves, indicating anterior horn cell dysfunction, while tibial somatosensory evoked potentials (SSEPs) were preserved, suggesting intact dorsal columns. This "F-EP dissociation" aligned with the clinical picture of ASAS. Supportive therapy was initiated, and a repeat MRI after one week showed confirmed anterior spinal cord infarction.
DISCUSSION: This case highlights the utility of electrophysiological testing in the early diagnosis of MRI-negative ASAS. The combination of absent F-waves and preserved SSEPs serves as surrogate evidence of anterior cord involvement. Timely recognition through clinical and neurophysiological correlation enables early intervention and improved outcomes.
CASE PRESENTATION: A 62-year-old man with vascular risk factors presented with acute-onset flaccid paraplegia and loss of pain and temperature sensation below the hips, with preserved vibration sense - suggestive of ASAS. MRI of the spine at presentation and at 72 h showed no abnormalities. However, nerve conduction studies revealed absent tibial F-waves, indicating anterior horn cell dysfunction, while tibial somatosensory evoked potentials (SSEPs) were preserved, suggesting intact dorsal columns. This "F-EP dissociation" aligned with the clinical picture of ASAS. Supportive therapy was initiated, and a repeat MRI after one week showed confirmed anterior spinal cord infarction.
DISCUSSION: This case highlights the utility of electrophysiological testing in the early diagnosis of MRI-negative ASAS. The combination of absent F-waves and preserved SSEPs serves as surrogate evidence of anterior cord involvement. Timely recognition through clinical and neurophysiological correlation enables early intervention and improved outcomes.