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23 Possible Causes for Cerebrospinal Fluid Abnormality, Frontal Intermittent Rhythmic Delta Activity

  • Stroke

    In most cases, it occurs in a rhythmic and intermittent manner, and the most commonly and important types are frontal intermittent rhythmic delta activity (FIRDA) ( Fig 2[scielo.br] Frontal intermittent rhythmic delta activity (FIRDA) in pituitary adenoma. Clin Electroencephalogr 1995;26:173-179. [ Links ] 29.[scielo.br] ), occipital intermittent rhythmic delta activity (OIRDA) and temporal intermittent rhythmic delta activity (TIRDA) ( Fig 3 ).[scielo.br]

  • Cerebral Hemorrhage

    Cerebrospinal fluid (CSF) studies disclosed mononuclear pleocytosis with elevated protein levels.[ncbi.nlm.nih.gov] Results of a polymerase chain reaction assay of the cerebrospinal fluid were positive for HSV-1. His course was complicated by 2 episodes of cerebral hemorrhage.[ncbi.nlm.nih.gov] Treatment Treatment includes surgically measuring and correcting pressure on the brain by inserting a tube and draining excess blood and the cerebrospinal fluid that normally[neurosurgery.ucla.edu]

  • Subarachnoid Hemorrhage

    […] for SAH; CT negative for SAH and inconclusive cerebrospinal fluid examination.[ncbi.nlm.nih.gov] fluid or xanthochromia in any tube of cerebrospinal fluid collected considered abnormal.[bmj.com] Hydrocephalus General information: Acute hydrocephalus, an abnormal accumulation of cerebrospinal fluid in the brain, occurs in 15 percent of patients with SAH.[neurosurgery.ucla.edu]

  • Subdural Hematoma

    Subdural hematoma is defined as a collection of blood outside the brain below the dura mater. Presentations seen is dependent on the level of bleeding but general include siezures, apathy, weakness, lethargy, nausea, dizziness, behaviorual changes, confusion and severe headache. Chronic subdural hematoma may have[…][symptoma.com]

  • Brain Neoplasm

    For example, blood and cerebrospinal fluid may also be tested to check for substances secreted by tumors (called tumor markers) and for gene abnormalities that are characteristic[merckmanuals.com] 3 months; new parictal lesion. deficits and with mass effect abnormalities; Dx: MS BAEP Brain stem auditory evoked potential, CC corpus callosum, CSF cerebrospinal fluid,[thefreelibrary.com] They begin in the ependymal cells that line the central canal of the spinal cord and the ventricles of the brain, where cerebrospinal fluid (CSF) is manufactured.[encyclopedia.com]

  • Neurosyphilis

    A diagnosis of neurosyphilis should be considered in patients with serologic evidence of syphilis and one or more of the following cerebrospinal fluid abnormalities; mononuclear[omicsonline.org] Cerebrospinal fluid abnormalities in patients with syphilis: association with clinical and laboratory features.[link.springer.com] Marra CM, Maxwell CL, Tantalo L, et al. : Normalization of cerebrospinal fluid abnormalities after neurosyphilis therapy: does HIV status matter ?[link.springer.com]

  • Susac Syndrome

    Cerebrospinal fluid was abnormal in 5 patients showing pleocytosis (mean, 24.6; range, 6-85 cells/mL) and elevated protein level (mean, 210; range, 113-365 mg/dL).[ncbi.nlm.nih.gov] The EEG showed frontal intermittent rhythmic delta activity.[ncbi.nlm.nih.gov] To report 2 patients with Susac syndrome presenting with acute confusion and abnormal neuroimaging and cerebrospinal fluid (CSF) findings, both of whom were initially misdiagnosed[ncbi.nlm.nih.gov]

  • Cerebral Neoplasm

    This is a sac of cerebrospinal fluid (CSF), which has been "trapped" outside or inside the brain. It might also be called a "leptomeningeal cyst."[aans.org] Recent evidence suggests that specific chromosomal abnormalities may predict the response to chemotherapy.[aans.org]

  • Metabolic Encephalopathy

    The cerebrospinal fluid can also be analyzed for abnormal proteins, chemicals, and cells.[emedicinehealth.com] […] patterns, e.g., frontal intermittent rhythmic delta activity (FIRDA), or spikes and sharp waves as well as spike-wave discharges in temporal regions. [37] In hyponatremia[neurologyindia.com] Elevation of the level of blood ammonia or cerebrospinal fluid glutamine (a reflection of elevated amounts of blood ammonia), are usually present to confirm the diagnosis.[dartmouth.edu]

  • Pituitary Adenoma

    fluid rhinorrhea, seizures, and pituitary apoplexy, can occur but are uncommon.[aafp.org] They also tend to occur insidiously, so that many patients are not aware of them until they are specifically tested. 15 Other neurologic presentations, such as cerebrospinal[aafp.org] Diagnostic Tests Useful in the Evaluation of a Suspected Adenoma Test Indication Abnormal (reference range)* Clinical notes 24-hour urine free cortisol Cortisol excess Elevated[aafp.org]

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