Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections

When a child develops sudden behavioral, emotional, or movement-related changes after a strep infection, we may recommend a closer medical evaluation. Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections, commonly called PANDAS, describes a pattern of abrupt neuropsychiatric symptoms associated with group A streptococcal infection.

PANDAS is considered a subtype of Pediatric Acute-onset Neuropsychiatric Syndrome, or PANS. Although researchers continue to study the condition, it is believed to involve an immune response that affects brain function following a strep infection.

Recognizing Possible PANDAS Symptoms

The defining feature of PANDAS is not simply the presence of anxiety, tics, or obsessive behaviors. We look closely at whether symptoms began suddenly or worsened dramatically over a short period. Parents may feel as though their child changed almost overnight.

Possible signs may include:

•          New or rapidly worsening obsessive thoughts or compulsive behaviors

•          Motor or vocal tics

•          Severe separation anxiety or emotional distress

•          Irritability, aggression, or sudden mood changes

•          Changes in handwriting, coordination, or other motor skills

•          Sleep problems, bed-wetting, or frequent urination

•          Reduced food intake or sudden eating restrictions

•          A noticeable decline in attention or school performance

These symptoms can overlap with other neurological, psychiatric, developmental, and medical conditions. A history of strep throat combined with tics or anxiety does not automatically mean a child has PANDAS.

Why We Recommend a Thorough Evaluation

There is no single laboratory test that confirms PANDAS. We consider the child’s symptom pattern, medical history, physical examination, and evidence of a recent strep infection. Depending on the situation, testing may include a throat culture or bloodwork while we evaluate other possible causes.

We encourage families to share when symptoms began, how quickly they progressed, whether the child recently had strep throat or scarlet fever, and whether similar episodes occurred previously. School reports, videos of unusual movements, and a written symptom timeline can also help us better understand the changes.

How PANDAS May Be Managed

Treatment depends on the child’s symptoms, medical history, and test findings. When an active strep infection is confirmed, antibiotics may be prescribed by the appropriate provider. Additional care may address obsessive-compulsive symptoms, anxiety, tics, eating difficulties, sleep disruption, or other concerns.

Because every child presents differently, we may coordinate care with pediatricians, mental health professionals, and other specialists. We advise parents not to begin antibiotics, supplements, or immune-based treatments without medical guidance. Immediate help should be sought when symptoms create an urgent safety concern.

When to Schedule a Pediatric Neurology Evaluation

We may recommend a pediatric neurology evaluation when a child develops sudden tics, abnormal movements, significant behavioral changes, sleep disruption, regression, or other neurological symptoms. A timely assessment can help us identify possible causes and develop an appropriate care plan.

Schedule an evaluation with Houston Pediatric Neurology and Sleep if your child develops sudden tics, behavioral changes, or other symptoms that may be associated with PANDAS. Visit our office in Houston/Memorial or Sugar Land, Texas, call (832) 252-9320 or book online at www.pedneurosleep.com.