Thecaloscopy: The Endoscopy of the Lumbar Subarachnoid Space, Part I: Historical Review and Own Cadaver Studies

2001 ◽  
Vol 44 (2) ◽  
pp. 61-64 ◽  
Author(s):  
J. P. Warnke ◽  
M. Tschabitscher ◽  
A. Nobles
PEDIATRICS ◽  
1985 ◽  
Vol 75 (4) ◽  
pp. 719-724
Author(s):  
Katherine L. Kreusser ◽  
Theodore J. Tarby ◽  
Edward Kovnar ◽  
Donald A. Taylor ◽  
Alan Hill ◽  
...  

Serial lumbar punctures for the management of neonatal posthemorrhagic hydrocephalus without intracranial hypertension were evaluated in 16 infants. Cranial ultrasonography to evaluate ventricular size and the Ladd monitor at the anterior fontanel to measure intracranial pressure were utilized immediately before and after lumbar puncture. In 12 patients, a decrease in ventricular size and in anterior fontanel pressure could be effected with each lumbar puncture. In these infants, cessation of progression of the hydrocephalus and intermittent decreases in ventricular size were accomplished. In four patients, lumbar punctures were not successful in decreasing ventricular size or lowering intracranial pressure. Two criteria could be defined to determine whether lumbar puncture could provide at least temporary benefit for the treatment of posthemorrhagic hydrocephalus. The first of these is to establish the presence of communication between lateral ventricles and lumbar subarachnoid space by effecting a decrease in ventricular size and a decrease in intracranial pressure by removal of CSF. The second criterion is to ascertain a critical volume of CSF (usually relatively large) that must be removed in order to effect the above changes. Cranial ultrasonography and measurement of intracranial pressure by application of the Ladd monitor to the anterior fontanel are extremely valuable in the evaluation of lumbar punctures in the management of posthemorrhagic hydrocephalus.


1962 ◽  
Vol 203 (3) ◽  
pp. 453-456 ◽  
Author(s):  
R. D. B. Williams ◽  
Augusta McCord

Hyperglycorrachia was produced in anesthetized dogs by the administration of intravenous glucose. The glucose entered the lumbar subarachnoid space more rapidly than it entered the cisternal subarachnoid space. This finding is a reverse of the diffusion into the cisternal and lumbar regions in man after the administration of intravenous glucose. The pattern in dogs is different from that in man under normal circumstances, but follows the pattern present when radioactive sodium 24 is used as a diffusible substance. It is concluded that glucose diffuses directly into the spinal subarachnoid at a rapid rate in the dog. This may be due to anatomical differences in various species.


Radiology ◽  
1982 ◽  
Vol 142 (3) ◽  
pp. 673-676 ◽  
Author(s):  
V M Haughton ◽  
O P Eldevik ◽  
B Lipman

1980 ◽  
Vol 53 (4) ◽  
pp. 553-555 ◽  
Author(s):  
Alan H. Lockwood ◽  
Robert M. Quencer ◽  
Larry K. Page

✓ A 63-year-old woman with a 10-year history of intermittent cerebrospinal fluid (CSF) rhinorrhea was found to have a transclival meningocele. After pluridirectional tomography demonstrated a bone defect in the clivus, the diagnosis was established by means of computerized tomography (CT) by comparing the absorption coefficients of a soft-tissue mass within the sphenoid sinus before and after the injection of metrizamide into the lumbar subarachnoid space. An increase of 39 absorption units clearly indicated the movement of CSF from the prepontine subarachnoid space into the sphenoid sinus. This case illustrates the value of metrizamide CT cisternography in the evaluation of patients with CSF rhinorrhea.


2020 ◽  
Vol 3 (2) ◽  
pp. V9
Author(s):  
Alba Scerrati ◽  
Pasquale De Bonis ◽  
Nicolò Norri ◽  
Michele Alessandro Cavallo

Most patients with spasticity, rigidity, and other symptoms of the upper motor neuron syndrome respond effectively to surgical treatment with an intrathecal baclofen pump when their symptoms become intractable to nonsurgical measures. Baclofen administered into the lumbar subarachnoid space produces a locally high concentration at the spinal level and a low concentration supraspinally, avoiding most of the central side effects associated with a high oral dose, such as drowsiness and confusion.The aim of surgical treatment is to provide the appropriate volume and concentration of the drug in the subarachnoid space, avoiding the main surgical complications, that is, infections, skin erosion, and catheter displacement.The video can be found here: https://youtu.be/HetelPwwwak


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