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At least 649 records · Page 36Linked to original sources
PubMed1992

Single- versus double-level nerve root compression. An experimental study on the porcine cauda equina with analyses of nerve impulse conduction properties.

Double-level nerve root compression had a greater effect on nerve impulse conduction, recorded as tail muscle action potential amplitude, than single-level compression at both 10 and 50 mm Hg. If the distance between the two compression sites at 10 mm Hg compression was increased from one vertebral segment (10 mm) to two vertebral segments (30 mm), the reduction of muscle action potential amplitude was further enhanced. These observations may give new insight into the pathophysiology of cauda equina compression in spinal disorders such as stenosis.

Action Potentials↗
PubMed1998

The expression of cytokine mRNA in the cauda equina of Lewis rats with experimental allergic neuritis.

Autoreactive CD4+ T cells can transfer experimental allergic neuritis (EAN) to naive recipients. In order to further analyze the role of these T cells and their corresponding cytokines in EAN, we studied the expression of mRNA for IFN-gamma, IL-4, and IL-10 in the cauda equina of rats with EAN using a quantitative competitive reverse transcriptase PCR method. Nerves were studied on days 0 (pre-immunization), 10 (disease onset), 13 (clinical progression), 16 (disease peak), as well as 20, 24, and 34 post immunization (recovery). IFN-gamma messages increased at disease onset and peaked at day 13 p.i. IL-10 message remained at a very low level at disease onset and surged at day 16. Both messages were low in recovery stage. IL-4 message was undetectable at any time point. These data suggest a pro-inflammatory role of IFN-gamma and anti-inflammatory role of IL-10 in EAN lesions. It is also possible that a clonal switch from Th1 to Th2 occurs in EAN lesions during the disease course.

Actins↗
PubMed1998

Paraganglioma of the cauda equina: a case presenting features of increased intracranial pressure.

Paragangliomas are benign tumors arising from the heterotopic sympathetic ganglion. They occur more often in the carotid body, glomus jugulare, mediastinum, and paraaortic region; central nervous system locations include the petrous ridge, pineal region, and sella turcica. We report the clinical and imaging features of an unusual case of paraganglioma of the cauda equina. Magnetic resonance imaging (MRI) of the thoracolumbar region should be performed in cases of increased intracranial pressure whenever the head examination does not reveal the exact cause of the problem.

Cauda Equina↗
PubMed1992

Spinal epidermoid cyst and cauda equina syndrome in a teenage girl.

A sixteen year old girl presented with a four year history of hip pain followed subsequently by back pain radiating down her left leg, progressive urgency of micturition, urinary incontinence, a feeling of bladder fullness and incomplete bladder emptying, faecal impaction and finally, numbness in both of her buttocks. A diagnosis of Cauda Equina Syndrome was suspected on the history and the clinical examination. A plain X-ray of her lumbar spine revealed evidence of a slow growing mass within the vertebral canal at the level of L3. A Magnetic Resonance Imaging (MRI) scan confirmed an intradural space occupying lesion at the same level. This lesion was surgically removed and histological examination revealed a benign epidermoid cyst.

Adolescent↗
PubMed1990

Glioblastoma multiforme with bone metastase and cauda equina syndrome.

Remote metastases, leptomeningeal dissemination and spreading of the tumor by infiltration are rare complications of glioblastoma multiforme. The existence of different forms of spreading simultaneously is very rare. We present a case of a young patient with glioblastoma multiforme who was operated and subsequently received radiation therapy and cytotoxic treatment. Eight months following the operation, the patient developed cauda equina syndrome. Bone metastases of vertebrae and ribs, and direct infiltration of the recurrent tumor mass into the ethmoidal and frontal sinuses were found. The described patient demonstrates a very rare combination of all forms of spreading metastases in glioblastoma multiforme. The infiltration of the tumor mass into the sinuses and the direct permeation of the meningeal and dural venous system and of the leptomeninges, may explain the mechanism of the development of distant metastases and leptomeningeal dissemination in glioblastoma multiforme.

Adult↗
PubMed1991

[Spinal cord and cauda equina compression in 2 patients with beta-thalassemia intermedia].

Spinal cord compression as a consequence of mass lesions due to extramedullary hematopoiesis is a well described but rare syndrome occurring in thalassemia and some other hematologic conditions. The authors report two cases of patients with a genetic variant of beta-thalassemia, who suffered from a progressive compression of the spinal cord in one case, of the cauda equina in the other caused by epidural hematopoietic tissue. The first patient recovered after partial surgical removal of this tissue and subsequent radiotherapy. The second one recovered after only radiotherapy.

Adolescent↗
PubMed1992

Motor evoked potentials from the bladder on magnetic stimulation of the cauda equina: a new technique for investigation of autonomic bladder innervation.

Although neurophysiological techniques have become widely accepted in the diagnostic evaluation of urogenital tract dysfunction, arguments have been forwarded to question their validity. Current techniques merely deal with somatosensory nerves, whereas micturition and sexual functions depend on autonomic motor nerve function as well. This study presents a new technique of motor evoked potentials obtained after magnetic stimulation of the cauda equina. Bladder and pelvic floor motor evoked potentials could be measured with concentric needle electrodes. Mean latency was 35.6 msec. for bladder motor evoked potentials and 10.6 msec. for pelvic floor motor evoked potentials. The technique was easy to perform, and provided consistent and objective data. No harmful side effects were noted.

Adult↗