PANDAS and PANS
What is PANDAS and PANS
PANS (Pediatric Acute-onset Neuropsychiatric Syndrome) is a broad category for a sudden onset of neuropsychiatric symptoms, while PANDAS (Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections) is a specific type of PANS triggered by a strep infection. All PANDAS cases are PANS, but not all PANS cases are PANDAS; PANS can be triggered by a wider variety of infections and other factors, whereas PANDAS is exclusively linked to Streptococcus pyogenes.
What is the difference?

PANDAS/PANS Population Analysis Based on 700 family self-reports
AGE OF ONSET
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1 to 3 years 11%
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4 to 9 years 69%
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10 to 13 years 19%
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14+ years 1%
PRIMARY SYMPTOMS
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OCD 37%
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TICS 14%
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BOTH 49%
INFECTIONS REPORTED
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Strep 81%
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Other 19%
(Mycoplasma, Lyme, etc.)

PANS
Pediatric Acute-Onset Neuropsychiatric Syndrome (PANS) is a rare condition that affects children, causing a sudden and significant onset of neuropsychiatric symptoms.
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An abrupt, acute, dramatic onset of obsessive-compulsive disorder or severely restricted food intake
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Concurrent presence of additional neuropsychiatric symptoms with similarly severe and acute onset from at least 2 of the following categories:
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Anxiety
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Emotional Lability and/or Depression
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Irritability, Aggression, and/or Severe Oppositional Behaviors
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Behavioral (Developmental) Regression
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Sudden Deterioration in School Performance
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Motor or Sensory Abnormalities
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Somatic Signs and Symptoms, including Sleep Disturbances, Enuresis, or Urinary Frequency
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Symptoms are not better explained by a known neurologic or medical disorder
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Age requirement – None
The onset of PANS may start with infectious agents other than strep. It also includes onset from environmental triggers or immune dysfunction.
PANDAS
PANDAS is a condition where a child develops sudden or significant changes in neuropsychiatric symptoms following a streptococcal (strep) infection.
Clinical diagnosis of PANDAS includes 5 criteria:
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Presence of significant obsession, compulsions and/or tics
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Abrupt onset of symptoms or a relapsing-remitting course of symptom severity
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Prepubescent onset
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Association with streptococcal infection
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Association with other neuropsychiatric symptom (includes any of the PANS "accompanying" symptoms

Testing and Treatment
Treatment for mild to MODERATE
PANS/PANDAS can include:
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Antibiotics
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Corticosteroids
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Anti-Inflammatories
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Therapy
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SSRI’s (very low dose)
Treatment for moderate to SEVERE
PANS/PANDAS can include:
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Antibiotics
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Corticosteroids
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Anti-Inflammatories
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Therapy
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SSRI’s (very low dose)
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IVIG
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Plasmapheresis
Treatment for severe to EXTREME PANS/PANDAS can include:
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Long, tapered corticosteroid courses or repeated high dose IV corticosteroids
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IVIG
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Plasmapheresis
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Rituximab
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Antibiotics and the above
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DMARDs