Mania and hypomania in patients with epilepsy

Mania and hypomania are mood disorders characterized by abnormally elevated, expansive, or irritable mood accompanied by increased activity, energy, and goal-directed behavior. Although less common than depression, manic and hypomanic episodes may occur in individuals with epilepsy due to shared neurobiological mechanisms, seizure-related changes, or medication effects.

Recognition of these disorders is important because untreated symptoms may impair seizure management, adherence to treatment, social functioning, and overall quality of life.

Epidemiology

Mania and hypomania occur less frequently than depression among patients with epilepsy. The risk is increased in individuals with temporal lobe epilepsy, chronic epilepsy, and those with a personal or family history of bipolar disorder.

Risk Factors

• Temporal lobe epilepsy

• Chronic epilepsy

• Poor seizure control

• Family history of bipolar disorder

• Structural brain abnormalities

• Medication-related mood changes

• Sleep deprivation

• Psychosocial stress

Pathophysiology

Possible mechanisms include:

• Dysfunction of limbic circuits

• Altered dopaminergic and serotonergic neurotransmission

• Neurobiological effects of recurrent seizures

• Shared genetic susceptibility to epilepsy and mood disorders

• Effects of antiepileptic medications on mood regulation

Clinical presentation

Symptoms

• Elevated mood

• Excessive happiness or euphoria

• Irritability

• Increased energy

• Reduced need for sleep

• Increased talkativeness

• Racing thoughts

• Increased goal-directed activity

• Impulsive behavior

• Risk-taking behavior

Clinical signs

• Hyperactivity

• Pressured speech

• Distractibility

• Grandiosity

• Increased psychomotor activity

• Poor judgment

Diagnostic criteria

Diagnosis requires:

• Established diagnosis of epilepsy

• Presence of manic or hypomanic symptoms

• Assessment of symptom duration and severity

• Exclusion of substance-induced mood disorders

• Exclusion of medication-induced symptoms

• Comprehensive psychiatric evaluation

Investigations

Laboratory investigations

• Full blood count

• Blood glucose

• Liver function tests

• Renal function tests

• Electrolytes

Neurological assessment

• Review seizure control

• Review antiepileptic medications

• EEG where indicated

• Neuroimaging where indicated

Psychiatric assessment

• Mental status examination

• Mood assessment

• Risk assessment

Management

The primary objective is stabilization of mood symptoms while maintaining optimal seizure control.

Non-pharmacological treatment

• Psychoeducation to the patient and family

• Family therapy

• Supportive group therapy

• Occupational therapy

• Structured daily routine

• Sleep hygiene measures

• Psychosocial support

Pharmacological treatment

Use one of the following antiepileptic medications:

• Carbamazepine (PO) 200–1000 mg per day in divided doses.

OR

• Phenobarbitone (PO) 30–200 mg per day in divided doses.

OR

• Sodium valproate (PO) 500–2000 mg per day in divided doses.

Symptoms should be monitored and medication titrated accordingly.

Management according to underlying Cause

Mania associated with poor seizure control

• Optimize seizure management

• Improve adherence to medication

• Monitor mood symptoms regularly

Medication-related mania

• Review current treatment regimen

• Consider medication adjustment where appropriate

• Monitor closely for symptom resolution

Referral

Refer the patient when:

• Severe mania is present

• There is risk to self or others

• Diagnostic uncertainty exists

• Symptoms fail to improve

• Specialist psychiatric care is required

Complications

• Poor medication adherence

• Increased seizure frequency

• Social disruption

• Financial problems

• Risk-taking behavior

• Relationship difficulties

• Hospitalization

Prognosis

The prognosis depends on seizure control, treatment adherence, and early psychiatric intervention. Many patients experience significant improvement when both epilepsy and mood symptoms are effectively managed.

Prevention

• Optimal seizure control

• Adherence to prescribed medications

• Early identification of mood symptoms

• Regular psychiatric assessment

• Family education and support

• Avoidance of triggers such as sleep deprivation