Infectious disease work-up was negative and anti-NMDA receptor antibodies were present in the CSF and serum. [ncbi.nlm.nih.gov]

• Fever

  She developed disorientation and hallucination after fever and vomiting. Hypothermia, hypoventilation, hypertension, paralytic ileus and hyponatremia were present. [ncbi.nlm.nih.gov]

• Hyperthermia

  Keywords: NMDA, receptor, autoimmune, synapse, paraneoplastic, schizophrenia, paraneoplastic disorder, neurologic symptoms, hyperthermia, hypoventilation, hypersexuality, hyperphagia, hypersomnia, Amnesia, Corticosteriods Abstract: Anti-NMDA receptor [doi.org]

  […] seizure followed by refractory status epilepticus; sedation, MV, and PEG Partial motor seizures in left lower extremity; dystonic movements; hyperthermia 3 F/25 Mature, left ovary, 6cm 6 weeks Hyperthermia STMD, panic attacks, confusion, hallucinations [ncbi.nlm.nih.gov]

• Fatigue

  Median duration since diagnosis was similar for children (2.42 years, interquartile range 2.12-3.32) and adults (3.55 years, interquartile range 2.08-5.50 years). 3/4 (75%) pediatric and 3/5 (60%) adult patients reported neuropsychiatric symptoms (fatigue [ncbi.nlm.nih.gov]

  […] receptor encephalitis have the presence of a tumour (most commonly teratoma) CLINICAL PRESENTATION Up to 90% of patients are female The disorder typically progresses over 1-2 weeks An initial non-specific flu-like prodrome (sub-febrile temperature, headache, fatigue [lifeinthefastlane.com]

  In the pro-dromal phase, affected individuals have a flu-like illness with fever, malaise, headache, and fatigue. [dx.doi.org]

• Unconsciousness

  It is a life threatening condition that typically presents with viral illness, headaches, severe psychiatric symptoms, seizures, behavioural changes, decreasing levels of unconsciousness and progressive unresponsiveness, cognitive impairment, abnormal [ncbi.nlm.nih.gov]

  Their functions are critical for judgement, perception of reality, human interaction, the formation and retrieval of memory, and the control of unconscious activities (such as breathing, swallowing, etc), also known as autonomic functions. [antinmdafoundation.org]

• Malaise

  In the pro-dromal phase, affected individuals have a flu-like illness with fever, malaise, headache, and fatigue. [dx.doi.org]

• Hypoventilation

  Early tumor resection with immunotherapy facilitates recovery from this disease, but central hypoventilation may require long mechanical support. [ncbi.nlm.nih.gov]

  Keywords: NMDA, receptor, autoimmune, synapse, paraneoplastic, schizophrenia, paraneoplastic disorder, neurologic symptoms, hyperthermia, hypoventilation, hypersexuality, hyperphagia, hypersomnia, Amnesia, Corticosteriods Abstract: Anti-NMDA receptor [doi.org]

• Cough

  During this first round of IVIg treatment, the patient continued to have periods of vital sign instability and developed a new cough, with decreased ability to protect his airway. [dx.doi.org]

  MV, PEG Incomprehensible speech, choreoathetotic movements, hypersomnia, hyperthermia, autonomic instability 11 4, 7 F/28 1st episode: mature, right ovary, 14cm; 2nd episode: “benign,” left, 2cm; 3rd episode: “benign,” left, 1.7cm 1 month after tumor Cough [ncbi.nlm.nih.gov]

• Nausea

  She developed nausea and psychiatric symptoms, followed by fever and an acute progressive disturbance of consciousness. [ncbi.nlm.nih.gov]

  It follows a specific multistep clinical pattern starting with prodromal signs (such as headache, nausea, low-grade fever) and psychosis (hallucinations, delusions, suicidal thoughts) progressing to epileptic seizures, reduced levels of consciousness, [doi.org]

• Diarrhea

  […] tonic-clonic seizures, partial motor seizures, severe general encephalopathy, PEG Unable to speak and follow commands for 2 months; episodes of “facial twitches” 6 F/24 Mature, right ovary, 1.5cm 3 months (autopsy) Headache, hyperthermia, nausea, vomiting, diarrhea [ncbi.nlm.nih.gov]

• Tachycardia

  Tachycardia and bradycardia, blood pressure lability, hyperthermia, hypoventilation, and/or apnea were each reported in most patients with autonomic instability. [ncbi.nlm.nih.gov]

  Autonomic instability, evidenced by blood pressure and temperature fluctuations, tachycardia, bradycardia, and even cardiac pauses, is not uncommon. [dx.doi.org]

• Hypertension

  Hypothermia, hypoventilation, hypertension, paralytic ileus and hyponatremia were present. Neurological examination showed mild consciousness disturbance and bilateral ophthalmoplegia on admission, flaccid paraplegia with leg areflexia on Day 4. [ncbi.nlm.nih.gov]

  Enalapril was prescribed to manage hypertension; the patient had consistent systolic readings in the 150–170 mm Hg range and diastolic readings in the 80–90 mm Hg range. [dx.doi.org]

• Hypotension

  Five patients had signs of autonomic instability, including episodes of mydriasis, tachycardia, tachypnea, diaphoresis, or hypertension, which in one case alternated with hypotension. [ncbi.nlm.nih.gov]

• Facial Grimacing

  Examination on the day of admission revealed an awake, alert, and interactive male with focal speech production difficulties, asymmetric facial grimace, hyperactive deep tendon reflexes, and normal sensation. [dx.doi.org]

• Delusion

  Here, we present a case of a 15 year-old female adolescent with first-episode psychosis with anti-NMDA receptor encephalitis not related to tumor, which manifested with delusion, hallucinations, panic attacks, agitation, and neurological symptoms, and [ncbi.nlm.nih.gov]

• Impulsivity

  NMDA receptors are proteins that control electrical impulses in the brain. [antinmdafoundation.org]

  Similarly, mood dysregulation disorders, disorders of impulse control, and sleep disorders may be identified. [dx.doi.org]

  In humans with this autoimmune disease, rogue antibodies bind to the NMDA receptors on neurons, impairing their ability to control electrical impulses in the brain. [smithsonianmag.com]

• Aggressive Behavior

  behavior (seen at a psychiatric center); progressive confusion, decreased level of consciousness; general and partial seizures, refractory status epilepticus; sedation, MV, PEG Episodes of “chewing, grimacing”; myoclonic and ballistic movements with [ncbi.nlm.nih.gov]

  A previously healthy 22-year-old Asian male demonstrated extremely aggressive behavior (eg, he had thrown someone through a glass door on the day of admission) and was initially admitted for psychosis. [doi.org]

• Paranoid Ideation

  There is a dearth of information regarding management of psychiatric and behavioral symptoms, including agitation, anxiety, mood dysregulation, depression, disorganized thinking, paranoid ideation, and hallucinations. [dx.doi.org]

• Disorganized Behavior

  delusions, hallucinations, disorganized behavior). The disorder is more common in females (80%), in approximately half of whom it is associated with an underlying ovarian teratoma. [ncbi.nlm.nih.gov]

• Seizure

  A previously healthy 14-year-old girl presenting with generalized tonic clonic seizures and altered behavior. [ncbi.nlm.nih.gov]

• Catatonia

  Malignant catatonia is a severe and life-threatening state associated with anti-NMDA receptor encephalitis. It is often inadequately assessed and may not respond to immunosuppressive treatment. [ncbi.nlm.nih.gov]

• Headache

  It is an immune-mediated syndrome which presents with a variety of neurological symptoms including headache, fever, personality change and seizures. Most case reports to date are of young adults, it is much less frequently reported in older adults. [ncbi.nlm.nih.gov]

  Early symptoms may include fever, headache, and feeling tired. This is then typically followed by psychosis which presents with false beliefs (delusions) and seeing or hearing things that others do not see or hear (hallucinations). [en.wikipedia.org]

• Confusion

  Recognition of the syndrome, especially in pediatric populations, is difficult and often undiagnosed and/or confused with neurological disorders with similar clinical features. [ncbi.nlm.nih.gov]

  PRESENTATION Up to 90% of patients are female The disorder typically progresses over 1-2 weeks An initial non-specific flu-like prodrome (sub-febrile temperature, headache, fatigue) followed by a psychotic stage with bizarre behaviour, disorientation, confusion [lifeinthefastlane.com]

  Flu-like symptoms Memory deficits, including loss of short-term memory; Sleep disorders; Speech dysfunction – the patient is no longer able to produce coherent language or may be completely unable to communicate Cognitive and behavioural disturbances – confused [antinmdafoundation.org]

• Agitation

  Here, we present a case of a 15 year-old female adolescent with first-episode psychosis with anti-NMDA receptor encephalitis not related to tumor, which manifested with delusion, hallucinations, panic attacks, agitation, and neurological symptoms, and [ncbi.nlm.nih.gov]

  His affect fluctuated between flat, agitated, and appropriately calm. [dx.doi.org]

Workup revealed antibodies against N-methyl-d-aspartate receptor (NMDAR). Immunotherapy treatment led to a very significant improvement with the patient presenting only slight frontal lobe dysfunction after one year of recovery. [ncbi.nlm.nih.gov]

Example of Workup Prior to Diagnosis of Anti-NMDAR Encephalitis If the diagnosis of anti-NMDAR encephalitis is not considered, the workup often includes an extensive study for infectious diseases. [doi.org]

• Abnormal EEG

  CONCLUSIONS: The majority of anti-NMDAR encephalitis patients had abnormal EEG. EEG could sensitively reflect the abnormal brain functions of patients and could assist with early clinical diagnosis and prognosis prediction. [ncbi.nlm.nih.gov]

  EEG or MRI findings. [doi.org]

[…] as second-line treatments, and tumor removal. [ncbi.nlm.nih.gov]

EEG could sensitively reflect the abnormal brain functions of patients and could assist with early clinical diagnosis and prognosis prediction. [ncbi.nlm.nih.gov]

Abstract The California Encephalitis Project (CEP), established in 1998 to explore encephalitic etiologies, has identified patients with N-methyl-D-aspartate receptor (NMDAR) antibodies, the likely etiology of their encephalitis. [ncbi.nlm.nih.gov]

Introduction The causes of encephalitis are numerous, and most patients undergo extensive testing to identify infectious etiologies. However, other etiologies need to be considered. [doi.org]

He has since completed further training in emergency medicine, clinical toxicology, clinical epidemiology and health professional education. [lifeinthefastlane.com]

In 2007, the California Encephalitis Project (CEP), which was established to study the epidemiology of encephalitis, began identifying cases of anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis. [ncbi.nlm.nih.gov]

We present a review of the literature on the disorder, including its clinical presentation, differential diagnosis, epidemiology, treatment and prognosis. [dx.doi.org]

The California Encephalitis Project (CEP) was initiated in 1998 to identify the etiologic agents and define the clinical and epidemiologic characteristics associated with encephalitis. [doi.org]

These observations suggest that NMDA receptors may play a role in the pathophysiology of CNH. [ncbi.nlm.nih.gov]

In fact, there are no studies to show that these drugs are effective in the acute stage or are useful to prevent relapses. We definitely need multicenter prospective studies to evaluate the efficacy of all these immunotherapies. [dx.doi.org]

No analysis of relapse risk has yet been reported in cases of tumor development after treatment, and at this point, whether or not resection is needed to prevent relapse remains unclear. [ncbi.nlm.nih.gov]

Immune suppressing medications may be taken for prolonged periods of time (even after recovery) to prevent a relapse. [antinmdafoundation.org]

This cellular filter, separating the central nervous system from the circulatory system, normally prevents larger molecules from entering the brain. [en.wikipedia.org]