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What is Adult Aqueductal Stenosis?
Adult Aqueductal Stenosis is a diseased term of the brain in which there is narrowing of the aqueduct of Sylvius leave in blockage of the cerebrospinal fluid in the ventricular system of rules . As a resultant role of this blockage , the affected someone can develop hydrocephalus which is quite a serious medical circumstance .
Anatomically talk , the aqueduct of Sylvius is a channel touch base the third ventricle to the quaternary ventricle in the brain . This area is the narrowest track through which the cerebrospinal fluid passes through in the brain . Due to the little size of it of the aqueduct even a small obstruction can lead to complete block of the cerebrospinal fluid and affect its normal current through the brain .
As a result of this blockage the bulk of the ventricle increases due to accrual of the cerebrospinal fluid causing increase pressure within the heart ventricle . This in turn causes increased pressure in the cerebral mantle and it gets push into the skull . This is what is termed as Adult Aqueductal Stenosis .
An soul may have Adult Aqueductal Stenosis and have no symptoms relate to it for years but due to a sudden trauma to the headspring or an infection may set off the symptom and exacerbate Adult Aqueductal Stenosis .
What are the Causes of Adult Aqueductal Stenosis?
Some of the causes of Adult Aqueductal Stenosis are :
Compression of Aqueduct Due to neoplasm : In some cases , there is abrain tumorwhich develops in the midbrain which as it grows and progresses resultant role in compression of the Aqueduct of Sylvius result in complete obstruction of the aqueduct and do Adult Aqueductal Stenosis .
minute Aqueduct : Another cause for Adult Aqueductal Stenosis can be a congenitally narrowed aqueduct of Sylvius . This results in the aqueduct to be well blockade with sentence stimulate Adult Aqueductal Stenosis
Aqueduct Splitting : In some cases , the aqueduct gets split into multiple small-scale channels . This pass when there is uncomplete fusion of the median fissure . These freestanding duct may eventually add up back together and form a single aqueduct or they may remain separated . In both the cases , the normal rate of flow of the cerebrospinal fluid gets affect through the ventricular arrangement finally resulting in Adult Aqueductal Stenosis .
Septum Formation : In these cases , there is growth of an unnatural membrane of glial cell that form low portion of the aqueduct resulting in complete obstruction of the aqueduct stimulate Adult Aqueductal Stenosis .
Gliosis : This is a condition which causes the aqueduct to get block partially . In order for the cerebrospinal fluid to flux through this partly blocked channel the pressure level in the third heart ventricle is increase and also the speeding with which the cerebrospinal fluid flows through this region . This result in the epithelial cells within the liner of the ventricle to get damaged causing Adult Aqueductal Stenosis .
There are also sure other medical condition which can stimulate Adult Aqueductal Stenosis . The most common among those conditions are Adam - linked Hydrocephalus which leads to development of Adult Aqueductal Stenosis . It is an inherit experimental condition and the affected individual get the defaulted factor from the mother which causes Adult Aqueductal Stenosis . In some cases , bacterial meningitis has also shown to cause Adult Aqueductal Stenosis .
What are the Symptoms of Adult Aqueductal Stenosis?
The symptom of Adult Aqueductal Stenosis are quite standardised to that of hydrocephalus and let in :
How is Adult Aqueductal Stenosis Treated?
The main aim of handling of Adult Aqueductal Stenosis is to divert the current of cerebrospinal fluid off from the block aqueduct so that the fluid does not get accumulated and there is smooth menstruation of the cerebrospinal fluid through the brain .
The treatment also aims at contract the excessive stress that is being put on the ventricles due to Adult Aqueductal Stenosis . These treatments may not in any way increase the cerebral power of the affected role or improve the quality of life story but decidedly there will be an improvement of symptoms .
In shell of a mental capacity tumour get Adult Aqueductal Stenosis then surgical remotion of the tumor is done to free up the blocked Aqueduct make Adult Aqueductal Stenosis and leave costless passageway to the cerebrospinal fluid .
asunder from this the procedures done for treatment of Adult Aqueductal Stenosis are :
Extracranial Shunt Procedure : This is a operation which is done to drain the excess cerebrospinal fluid conglomerate within the third ventricle . This shunt arrest a valve which allows only one way flow of the fluid and the other remainder of the electrical shunt is connect to the peritoneal pit where the superfluous CSF is drained and then reabsorb by the tissues there .
This is quite a simple procedure and has a very good achiever pace . This subprogram is done endoscopically . The valve present on the shunt is adjusted to shape the pressure and flow rate of the cerebrospinal fluid and observe if the symptoms experienced by the patient become less with prison term post discussion of Adult Aqueductal Stenosis . This may be a square treatment for Adult Aqueductal Stenosis but it carry with it the risk for malfunction of the shunt and the need to retool the electrical shunt after approximately every two year . There are also sure other complicatedness that arise due to this subroutine like infections or inappropriate valve air pressure which may be potentially serious .
An incompatible valve pressure may result in more than normal draining or less than normal draining of the cerebrospinal fluid which may leave to possible serious complication .
Endoscopic Third Ventriculostomy : This is the 2nd procedure which is used to address Adult Aqueductal Stenosis . In this subprogram , an slit is made at the bottom of the third heart ventricle to admit drainage of the redundant cerebrospinal fluid .
This is a minimally invasive process and also has a gamy success pace in improving the symptom of patients suffering from Adult Aqueductal Stenosis . This subroutine creates a channel of communication between the third ventricle and the subarachnoid outer space where the spare cerebrospinal fluid is drained out and resorbed .
The endangerment of nonstarter of this procedure is quite high during the first two months of the function but then the failure rate drastically drops . Also , since there is no gadget being put inside the affected role the chances of infection are also very less and also the risk of gimmick malfunction is not there which is always an issue with the bypass procedure .
This procedure also demand very little hospital arrest as this is a minimally invasive procedure . In case if this operation does not debilitate the fluid completely then surgeon recur to the bypass subprogram to completely drain the fluid from the third ventricle for relieve up the aqueduct and process Adult Aqueductal Stenosis .
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