epidural space

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Related to epidural space: epidural anesthesia


1. a delimited area.
2. an actual or potential cavity of the body.
3. the areas of the universe beyond the earth and its atmosphere. adj., adj spa´tial.
danger space a subdivision of the retropharyngeal space, extending from the base of the skull to the level of the diaphragm; so called because it provides a route by which infection of the pharynx can spread to the mediastinum.
dead space see dead space.
epidural space the space between the dura mater and the lining of the spinal canal.
intercostal space the space between two adjacent ribs.
interpleural space mediastinum.
interproximal space (interproximate space) the space between the proximal surfaces of adjoining teeth; called also proximal or proximate space.
intervillous space the space of the placenta into which the chorionic villi project and through which the maternal blood circulates.
lymph s's open spaces filled with lymph in connective or other tissue, especially in the brain and meninges.
Meckel's space a recess in the dura mater that lodges the trigeminal ganglion.
mediastinal space mediastinum.
medullary space the central cavity and the intervals between the trabeculae of bone that contain the marrow.
palmar space a large fascial space in the hand, divided by a fibrous septum into a midpalmar and a thenar space.
parasinoidal s's spaces in the dura mater along the superior sagittal sinus which receive the venous blood.
perivascular space a lymph space within the walls of an artery.
plantar space a fascial space on the sole of the foot, divided by septa into the lateral, middle, and median plantar spaces.
pneumatic space a portion of bone occupied by air-containing cells, especially the spaces constituting the paranasal sinuses.
proximal space (proximate space) interproximal space.
retroperitoneal space the space between the peritoneum and the posterior abdominal wall.
retropharyngeal space the space behind the pharynx, containing areolar tissue.
subarachnoid space the space between the arachnoid and the pia mater, containing cerebrospinal fluid.
subdural space a narrow fluid-containing space, often only a potential space, between the dura mater and the arachnoid.
subphrenic space the space between the diaphragm and underlying organs.
subumbilical space somewhat triangular space in the body cavity beneath the umbilicus.
Tenon's space a lymph space between the sclera and Tenon's capsule.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ep·i·du·ral space

the space between the walls of the vertebral canal and the dura mater of the spinal cord.
Farlex Partner Medical Dictionary © Farlex 2012

Epidural space

The space immediately surrounding the outermost membrane of the spinal cord.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
[20] on morbidly obese parturients using US, they found a Pearson's correlation coefficient of 0.85 between the US estimated distance to the epidural space and the actual needle depth (ND).
We suggest that new-onset neck or back pain--especially with symptoms of paresthesia, radiculopathy, or cord compression--in the setting of HCC warrants prompt investigation for HCC metastases to the spine and epidural space.
We were asked to perform an EBP in a patient with known dural leak, distorted lumbar anatomy following spinal surgery, and a scarred, narrowed epidural space. The caudal approach to EBP was a reasonable option to avoid repeat spinal surgery and the risk of further dural compromise using a standard lumbar approach.
The C7-T1 dorsal epidural space was entered using the loss-of-resistance to saline technique.
The suggested mechanism of superior epidural analgesia with PIEB compared to CEI is greater spread of anesthetic solution within the epidural space, and therefore better sensory blockade compared to CEI.
[13] Injections are made directly into the neural foramen, which is the tip of the ear of "Scottie dog" [14] as appears under fluoroscopic guidance just above the opening for the nerve root and outside the epidural space and allows spread of steroid to the anterior epidural space.
Thereafter, the air passes to mediastinum which is connected to retropharyngeal space and finally free air reaches to epidural space. (8) There is no barrier between the posterior mediastinum or the retropharyngeal space and the epidural space.
Second, the mass effect produced in the epidural space on the adjacent thecal sac is felt to result in an overall increase in CSF pressure, which translates intracranially and may explain the immediate relief most patients experience following the procedure.
CompuFlo is an instrument that helps anesthesiologists objectively identify the epidural space with 99% success on the first attempt.
The authors further stressed that if more than one attempt was required to identify the epidural space, the accidental dural puncture rate increased to 0.91%.
In this study, it was assumed that medicines can be injected into the epidural space through facet joints.
Ultrasound can identify the midline of the spine, the intervertebral level, the proper needle insertion point, the optimal angle for needle insertion and can measure the depth of the epidural space (3, 8, 9).