The relationship of the values of regional blood flow of lumbar spinal cord enlargement and those of the mean amplitude of total lower limb muscle EMG in patients with thoracolumbar spine-and-spinal cord injury

Шеин А.П., Максимова М.Ю., Худяев А.Т., Щурова Е.Н.

Abstract


The relationship of some intraoperatively measured values of regional blood flow in different vascular pools of lumbar enlargement and those of the mean amplitude of total lower limb muscle EMG in patients with spine-and-spinal cord injury of thoracolumbar spine has been analyzed. Ten patients (3 females, 7 males) with thoracolumbar spine-and-spinal cord injury at the age from 24 to 58 years who underwent surgical treatment in the department of neurosurgery at RISC "RTO" were examined. The values of maximal systolic (Vs) and volumetric (Qs) blood flow velocity in the pool of the anterior spinal artery of the lumbar enlargement registered intraoperatively both in pre- and post-decompression periods in the patients mentioned have been demonstrated to correlate with the basic quantitative parameter of MVA-pattern of voluntary EMG (mean amplitude) of lower limb muscles. The critical value Qs that corresponds to "bioelectrical silence" of the muscles examined amounts to 2.5 ml/min.

Keywords


spinal cord injury, blood flow, electromyography

Refbacks

  • There are currently no refbacks.