Arch Neurol Chicago
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Arch Neurol Chicago · Jan 1978
The clinical significance of spontaneous pulsations of the retinal vein.
A search for spontaneous retinal venous pulsations was carried out in 218 subjects. Spontaneous venous pulsations were present in 87.6% of 146 unselected subjects 20 to 90 years of age and absent in 100% of 33 patients with raised intracranial pressure without papilledema and ten patients with papilledema. ⋯ Some normal subjects with absent pulsations showed definite pulsations on subsequent examinations. These findings confirm that the presence of spontaneous venous pulsations is a reliable indicator of an intracranial pressure below 180 to 190 mm H2O, while the absence of pulsations may be found with normal intracranial pressure and is therefore not a reliable guide to raised intracranial pressure.
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Arch Neurol Chicago · Jan 1978
Case ReportsCervical myelopathy due to ossification of the posterior longitudinal ligament: a clinicopathologic study.
A clinicopathologic study was done of a Japanese patient with symptomatic ossification of the posterior longitudinal ligament in the cervical spine. Post-mortem specimen showed characteristic distribution of degenerations at C5-6 segments similar to chronic cervical spondylosis or disk protrusion. ⋯ Spinal immobilization produced by the ossified ligament may have contributed to the long clinical course, lasting for 30 years. Review of literature showed that the myelopathy can be distinguished clinically and radiographically from that produced by cervical spondylosis.