Comorbidity of attention deficit hyperactivity disorder in a patient with epilepsy: Staring down the challenge of inattention versus nonconvulsive seizures

Abstract

Epilepsy is a heterogeneous disorder of recurrent seizures which often is comorbid with anxiety, depression, attention deficit hyperactivity disorder (ADHD), intellectual disability (ID), and other psychiatric manifestations. Treating both epilepsy and behavioral symptoms from psychiatric disorders can result in polypharmacy with interactions of medications leading to both worsened efficacy of antiseizure medications due to psychotropic effects and worsening of psychiatric symptoms due to antiseizure medication side effects. We aim to suggest pragmatic strategies for the neurologist in the diagnosis and management of comorbid ADHD in patients with epilepsy based on the International League Against Epilepsy (ILAE) Pediatric Commission guidelines and additional literature review. The screening tool of choice for the symptoms of ADHD is validated in the country of practice and written in the language of the family, though various screening tools and advantages and disadvantages of each will be discussed. Once ADHD is diagnosed, recent safety data suggest that Methylphenidate, Amphetamine, and Atomoxetine are generally safe for patients with epilepsy. We present a case of a child with epilepsy and ADHD and discuss the clinical signs, symptoms, and strategies for treatment as well as when to refer to child psychiatry.

Keywords

• Attention deficit hyperactivity disorder
• Epilepsy
• Nonepileptic
• Inattentiveness
• Polypharmacy