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Topic: Intracranial pressure


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In the News (Mon 4 Jun 12)

  
  Increased intracranial pressure | Health Library | Walgreens
The pressure itself can be responsible for further damage to the central nervous system by causing compression of important brain structures and by restricting blood flow through blood vessels that supply the brain.
Intracranial pressure is measured in millimeters of mercury (mm Hg).
Intracranial pressure may be measured during a spinal tap (lumbar puncture).
www.walgreens.com /library/contents.jsp?docid=000793&doctype=1   (532 words)

  
  Increased Intracranial Pressure - Health Centers News Story - WFTV Orlando
The pressure itself can be responsible for further damage to the central nervous system by causing compression of important brain structures and by restricting blood flow through blood vessels?that supply the brain.
Intracranial pressure may be measured during a spinal tap (lumbar puncture).
This device is drilled through the skull to measure the pressure on the surface of the brain, or a catheter is inserted to allow it to measure the pressure inside the brain.
www.wftv.com /encyclopedia/6860816/detail.html   (688 words)

  
  Increased Intracranial Pressure - Health Centers   (Site not responding. Last check: )
The pressure itself can be responsible for further damage to the central nervous system by causing compression of important brain structures and by restricting blood flow through blood vessels?that supply the brain.
Intracranial pressure is measured in millimeters of mercury (mm Hg).
Intracranial pressure may be measured during a spinal tap (lumbar puncture).
www.wdsu.com /encyclopedia/6860816/detail.html   (660 words)

  
  Intracranial pressure - Biocrawler   (Site not responding. Last check: )
Intracranial pressure (ICP) is the pressure of the cerebrospinal fluid within the central nervous system.
Intracranial pressure can be measured by means of a lumbar puncture or continuously with intracranial transducers (only used in neurosurgical intensive care).
There are many symptoms associated with changes in intracranial pressure, including headaches, transient visual obscurations, nausea and/or vomiting, decreased consciousness and Cushing's triad (hypertension, bradycardia and irregular respirations).
www.biocrawler.com /encyclopedia/Intracranial_pressure   (194 words)

  
 Increased intracranial pressure
The pressure itself can be responsible for further damage to the central nervous system by causing compression of important brain structures and by restricting blood flow through blood vessels that supply the brain.
Intracranial pressure is measured in millimeters of mercury (mm Hg).
Intracranial pressure may be measured during a spinal tap (lumbar puncture).
www.healthtalk.com /multiplesclerosis/encyclopedia/?p=1/000793.htm   (445 words)

  
 Intracranial pressure   (Site not responding. Last check: )
Intracranial pressure is the pressure of the cerebrospinal fluid within the central nervous system.
Intracranial pressure can be measured by means of a lumbar puncture.
There are many symptoms associated with changes in intracranial pressure, including headaches, transient visual obscurations, nausea and/or vomiting, and decreased consciousness.
www.casimiro.com /wiki/en/wikipedia/i/in/intracranial_pressure.html   (166 words)

  
 Intracranial Pressure Monitoring - Health Encyclopedia News Story - WMAQ | Chicago   (Site not responding. Last check: )
This catheter may be difficult to place with increased intracranial pressure, since the ventricles change shape under increased pressure and are often quite small?because of the?brain expanding around them from injury and swelling.
Intracranial pressure monitoring is usually done in cases of severe head injury or after surgeries in cases where a tumor or vascular lesion has been removed or repaired and the surgical team is concerned about brain swelling.
Elevated intracranial pressure can be treated by draining CSF through the catheter, as well as by changing ventilator settings (for those patients who are in critical condition and on a respirator) or by the application of certain intravenous medications.
www.nbc5.com /encyclopedia/6864434/detail.html   (1143 words)

  
 ENLmedical.com: Conditions And Concerns: Medical Encyclopedia: Increased intracranial pressure
The pressure itself can be responsible for further damage to the central nervous system by decreasing blood flow to the brain or by causing the brain to herniate (push through) the opening in the back of the skull where the spinal cord is attached.
Intracranial pressure is measured in millimeters of mercury (mm Hg) and the upper limits of normal are around 180 to 200 mm Hg.
Intracranial pressure may be measured during a spinal tap (lumbar puncture) or may be measured directly by attaching a device referred to as a bolt to a small hole in the skull.
www.enlmedical.com /article/000793.htm   (261 words)

  
 Intracranial Pressure Monitoring - Health Encyclopedia   (Site not responding. Last check: )
Intracranial pressure monitoring is usually done in cases of severe head injury or after surgeries in cases where a tumor or vascular lesion has been removed or repaired and the surgical team is concerned about brain swelling.
Elevated intracranial pressure can be treated by draining CSF through the catheter, as well as by changing ventilator settings (for those patients who are in critical condition and on a respirator) or by the application of certain intravenous medications.
Intracranial pressure monitoring is crucial in identifying the problem and allowing for immediate treatment.
www.wnbc.com /encyclopedia/6864434/detail.html   (1137 words)

  
 INTRACRANIAL PRESSURE
Normal intracranial pressure in adults is 8 to 18mm Hg and in babies the pressure is 10-20mm less when measured through a lumbar puncture.
There is a rise with cardiac systole (due to distention of intracranial arteriolar tree which follows) and a slower change in pressure with respiration, falling with each inspiration and rising with expiration.
Intracranial pressure is a result of at least 2 factors, the volume of the brain (about 1400ml in an adult) being constant.
www.thamburaj.com /intracranial_pressure.htm   (2812 words)

  
 MedlinePlus Medical Encyclopedia: Intracranial pressure monitoring
Intracranial pressure monitoring is a device, placed inside the head, which senses the pressure inside the brain cavity and sends its measurements to a recording device.
This catheter may be difficult to place with increased intracranial pressure, since the ventricles change shape under increased pressure and are often quite small because the brain expands around them from injury and swelling.
Intracranial pressure monitoring is crucial to identify the problem and treat it right away.
www.nlm.nih.gov /medlineplus/ency/article/003411.htm   (1043 words)

  
 Increased Intracranial pressure-Module
Intracranial pressure (ICP) is defined as the measure of cerebrospinal fluid pressure within the cranium.
Pressure exerted in the sagittal sinus as the CSF returns to the heart via the jugular veins.
The difference between the arterial blood pressure entering the brain and the pressure of venous blood exiting the brain is called the cerebral perfusion pressure (CPP).
www.ocalaregional.com /CustomPage.asp?guidCustomContentID={A88FB334-931F-4A52-9AF1-1BBA7C91C54C}   (4188 words)

  
 INTRACRANIAL PRESSURE   (Site not responding. Last check: )
It is believed that intracranial pressure is a reflection of the atmospheric pressure which is conducted through the large neck vessels.
Accurate measurement of pressure in new born and infants is difficult to obtain but it is believed that in the first few months of life the intracranial pressure is lower.
The most accurate method of measuring the intracranial pressure is by the use of electrodes with a sensor attached to its tip.
www.health.adelaide.edu.au /paed-neuro/pressure.html   (1587 words)

  
 Brain Tumor | CancerBiopsies
Large tumors or tumors with extensive perifocal swelling edema inevitably lead to elevated intracranial pressure (intracranial hypertension), which translates clinically into headaches, vomiting (sometimes without nausea), altered state of consciousness (somnolence, coma), dilatation of the pupil on the side of the lesion (anisocoria), papilledema (prominent optic disc at the funduscopic examination).
In young children, elevated intracranial pressure may cause an increase in the diameter of the skull and bulging of the fontanelles.
A bilateral temporal visual field defect (bitemporal hemianopia—due to compression of the optic chiasm), often associated with endocrine disfunction—either hypopituitarism or hyperproduction of pituitary hormones and hyperprolactinemia is suggestive of a pituitary tumor.
www.cancerbiopsies.com /brain-tumor/brain-tumor.htm   (1425 words)

  
 Intracranial Pressure - Search Results - MSN Encarta   (Site not responding. Last check: )
Intracranial Pressure - Search Results - MSN Encarta
Increased intracranial pressure (ICP) is a medical emergency.
Pressure, in mechanics, the force per unit area exerted by a liquid or gas on a body or surface, with the force acting at right angles to the...
encarta.msn.com /Intracranial_Pressure.html   (117 words)

  
 Discovery Health :: Diseases & Conditions :: increased intracranial pressure
Increased intracranial pressure (ICP) means that the pressure inside the skull is abnormally high, which may cause damage to the brain.
Therefore, even a moderately increased pressure in the skull squeezes the brain and decrease blood flow to the brain cells.
This is because if such a lesion is present, a spinal tap will create a pressure difference between the brain and spinal canal that could lead to protrusion of the brain stem through the base of the skull, a fatal outcome.
www.health.discovery.com /encyclopedias/illnesses.html?article=1584   (616 words)

  
 MedlinePlus Medical Encyclopedia: Increased intracranial pressure
It can also be due to increased pressure within the brain matter caused by lesions (such as a tumor) or swelling within the brain matter itself.
The pressure itself can be responsible for further damage to the central nervous system by causing compression of important brain structures and by restricting blood flow through blood vessels that supply the brain.
This device is drilled through the skull to measure the pressure on the surface of the brain, or a catheter is inserted to allow it to measure the pressure inside the brain.
www.nlm.nih.gov /medlineplus/ency/article/000793.htm   (494 words)

  
 brain injury .com | What is Intracranial Pressure (ICP)?
The problem with increased ICP is that the fluid under pressure tends to deform the brain itself and pushes tissue in such a way as to cause injury to the brain itself.
The results of increased pressure can often be seen in cases of a “slow bleed.” In cases like this, often involving either children who are unable to respond or older patients, a fall or other type of injury will occur, sometimes without even loss of consciousness.
Often, the results of the subjection to pressure on the brain are not able to be visualized on MRI for several weeks following the pressure.
www.braininjury.com /intracranialpressure.html   (728 words)

  
 (Industry News) Wireless Implant Measures Intracranial Pressure
The condition is often treated with shunts—thin silicone tubes that drain excess cerebrospinal fluid into a body cavity, where it is absorbed.
Small enough to be used for infants afflicted with the disease, the sensor is placed directly under the cranial bone by means of minimally invasive surgery.
The implant is an alternative to intraventricular catheters, which measure and stabilize elevated intracranial pressure simultaneously, but the catheters are invasive and can only remain in the brain for a limited time.
www.devicelink.com /emdm/archive/06/09/005.html   (371 words)

  
 Rising Intracranial Pressure - Patient UK
In patients who are hypovolaemic, this may be associated with a fall in blood pressure and an overall fall in cerebral perfusion pressure.
The use of barbiturates in the treatment of refractory intracranial hypertension requires intensive monitoring and is associated with a significant risk of complications, especially hypotension.
Dunn LT; Raised intracranial pressure.; J Neurol Neurosurg Psychiatry.
www.patient.co.uk /showdoc/40001329   (1412 words)

  
 BioMed Central | Abstract | Short-term elevation of intracranial pressure does neither influence duodenal motility nor ...
Patients with traumatic brain injuries and raised intracranial pressure (ICP) display biphasic response with faster gastric emptying during the early stage followed by a prolonged gastric transit time later.
Duodenal luminal lactate, pyruvate, and glucose concentrations were measured during physiological state and during elevated intracranial pressure of 10, 20, 30, 40, and 50 mmHg in six pigs.
The present study suggests that a stepwise and hourly increase of the intracranial pressure of up to 50 mmHg, does not influence duodenal motility activity in a significant manner.
www.biomedcentral.com /1471-227X/6/1/abstract   (366 words)

  
 Intracranial Pressure and Cerebral Blood Flow (page 1)
Maintenance of cerebral blood flow depends on a balance between the pressure within the skull, intracranial pressure (ICP) and the arterial pressure of the blood, mean arterial pressure (MAP).
Similarly, when blood pressure rises, the same mechanism stops the blood flow from increasing to excessive levels.
ICP intracranial pressure is the pressure within the rigid skull.
www.nda.ox.ac.uk /wfsa/html/u08/u08_013.htm   (682 words)

  
 Coma
An increase of pressure within the skull destroys delicate brain tissue and restricts blood and oxygen flow to the brain.
Increased intracranial pressure is a troubling complication of traumatic brain injury.
The swelling causes excessive pressure in the skull.
www.allabouttbi.com /brain-damage/coma.htm   (1152 words)

  
 AllRefer Health - Increased Intracranial Pressure (ICP, Intracranial Pressure - Increased)
A condition in which the pressure of the cerebrospinal fluid or brain matter within the skull exceeds the upper limits for normal pressure.
Increased intracranial pressure is almost always indicative of severe medical problems.
The pressure itself can be responsible for further damage to the central nervous system by decreasing blood flow to the brain or by causing the brain to herniate (push through) the opening in the back of the skull where the spinal cord is attached.
health.allrefer.com /health/increased-intracranial-pressure-info.html   (479 words)

  
 Routine intracranial pressure monitoring in acute coma
This record should be cited as: Forsyth RJ, Rodriguez B. Routine intracranial pressure monitoring in acute coma.
Brain swelling accompanied by raised intracranial pressure (ICP) resulted in inadequate cerebral perfusion with well-oxygenated blood.
Detection of raised ICP could be useful in alerting clinicians to the need to improve cerebral perfusion, with consequent reductions in brain injury.
www.cochrane.org /reviews/en/ab002043.html   (290 words)

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