The reversible effect of neck flexion on the somatosensory evoked potentials in patients with Hirayama disease: a preliminary study

2018 ◽  
Vol 40 (1) ◽  
pp. 181-186 ◽  
Author(s):  
Jin-Sung Park ◽  
Jin Young Ko ◽  
Donghwi Park
Keyword(s):  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Neck Flexion ◽  
Hirayama Disease ◽  
Reversible Effect ◽  
Preliminary Study

Somatosensory Evoked Potentials and Cortical Blood Flow During Craniotomy for Vascular Disease

Neurosurgery ◽  
1984 ◽  
Vol 15 (1) ◽  
pp. 22-28 ◽  
Author(s):  
Philip L. Carter ◽  
Peter A. Raudzens ◽  
Casey Gaines ◽  
Robert M. Crowell
Keyword(s):  
Blood Flow ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Normal Values ◽  
Conduction Time ◽  
Flow Probe ◽  
Cortical Blood Flow ◽  
Postoperative Confusion ◽  
Permanent Loss ◽  
Preliminary Study

Abstract It has been demonstrated that central conduction time (CCT) is slowed and that attenuation of cortical potentials occurs with reduced cerebral perfusion. During 11 craniotomies for aneurysm, arteriovenous malformation (AVM), or extracranial-intracranial (EC-IC) bypass, we continuously monitored somatosensory evoked potentials (SSEPs) and regional cortical blood flow (rCBF) as determined by a thermal flow probe. The CCT was calculated and correlated with the rCBF. In 8 of the 11 cases, the rCBF values varied within 1 SD of normal values derived from 25 measurements of nonischemic cerebral cortex. All initial CCT values were within 1 SD of normal, but 4 of 11 patients had a prolonged CCT intraoperatively. Three of these were associated with a low rCBF (14 to 31 m1/100 g/minute). One patient had postoperative confusion at the time of discharge. One patient who underwent AVM embolization had a permanent loss of SSEPs postoperatively, and his preexisting hemiparesis was more profound after operation. Finally, 1 patient's CCT improved after EC-IC bypass. This is a preliminary study that demonstrates the feasibility of monitoring CCT and rCBF during craniotomy. When rCBF values fall and the CCT slows, neurological deficit will probably occur.

Effect of neck flexion on somatosensory and motor evoked potentials in Hirayama disease

2013 ◽  
Vol 334 (1-2) ◽  
pp. 102-105 ◽  
Author(s):  
A. Abraham ◽  
M. Gotkine ◽  
V.E. Drory ◽  
S.C. Blumen
Keyword(s):  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Neck Flexion ◽  
Hirayama Disease

Effect of Neck Flexion on Somatosensory and Motor Evoked Potentials in Hirayama Disease (P03.169)

Neurology ◽  
2012 ◽  
Vol 78 (Meeting Abstracts 1) ◽  
pp. P03.169-P03.169
Author(s):  
A. Abraham ◽  
M. Gotkine ◽  
V. Drory ◽  
S. Blumen
Keyword(s):  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Neck Flexion ◽  
Hirayama Disease
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