Idiopathic intracranial hypertension radiology reference. Benign intracranial hypertension bih or pseudotumor cerebri is a syndrome that is defined by increased intracranial pressure, absence of ventriculomegaly, no evidence of intracranial extensive lesion and normal cerebrospinal fluid csf composition 1, 4, 6, 14. Pdf benign intracranial hypertension bih is a headache syndrome characterised by 1 raised cerebrospinal fluid csf pressure in the absence of an. Diagnosis and management of benign intracranial hypertension. Tbi has an annual incidence of about 200 cases per 100,000 population 2. Intracranial hypertension statpearls ncbi bookshelf. While the cause of the condition is not known, we know much about the condition.
Idiopathic intracranial hypertension iih is a condition characterised by increased intracranial pressure of unknown cause predominantly seen in obese women of childbearing age and associated. Traumatic brain injury tbi is the most common cause of intracranial hypertension 1. Iih idiopathic intracranial hypertension iih idiopathic intracranial hypertension iih, also called pseudotumor cerebri, is a condition in which high pressure inside your head can cause headache and problems with vision. Injury severe enough to warrant icp therapy, known as severe tbi, occurs in only 10% of cases. Foley coined the term benign intracranial hypertension in 1955 but reports from the 1980s. Idiopathic intracranial hypertension iih is characterized by an elevation of intracranial. More recently, the term benign has been dropped after reports of severe visual loss. Benign intracranial hypertension bih is a syndrome characterized by the abnormal elevation of the intracranial pressure with a normal composition of the cerebrospinal fluid csf and in absence. Intracranial pressure is determined by the total force exerted by the brain, blood, and cerebrospinal fluid contained within the fixed volume of the skull. Detection requires invasive monitoring, but certain clinical and. Idiopathic intracranial hypertension, pseudotumor cerebri, papilledema, visual loss, visual field. Intracranial hypertension is a spectrum of neurological disorders where cerebrospinal fluid.
This is a pdf file of an unedited manuscript that has been. The full text of this article is available in pdf format. Understanding idiopathic intracranial hypertension. Benign intracranial hypertension bih is a headache syndrome. Idiopathic intracranial hypertension journal of neurology. Management of increased intracranial pressure stephan a.
The aetiology is poorly understood and there are no evidencebased guidelines on the management of the disease. Although frequently linked, elevations of intracranial pressure icp and brain herniation can occur independently. Normal values for icp increase with age, from approxi mately 6 mm hg in infants to 10 to 15 mm hg in adults. Idiopathic intracranial hypertension iih is a condition characterised by increased intracranial pressure of unknown cause predominantly seen in obese women of childbearing age and associated with a history of recent weight gain. Idiopathic intracranial hypertension iih, also known as pseudotumor cerebri, is a syndrome with signs and symptoms of increased intracranial pressure but where a causative mass or hydrocephalus is not identified. Where iih is suspected, typically there should be no cranial nerve. Importantly, many other causes of intracranial hypertension need to be ruled. To quantify the hospital burden and health economic impact of idiopathic intracranial hypertension.
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