Epilepsy in Adults: A Basic Introduction Shahin Nouri, MD New York Methodist Hospital Director, Comprehensive Epilepsy Center.

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Presentation transcript:

Epilepsy in Adults: A Basic Introduction Shahin Nouri, MD New York Methodist Hospital Director, Comprehensive Epilepsy Center

What Is the Difference Between Epilepsy & Seizures? A seizure is a brief, temporary disturbance in the electrical activity of the brain Epilepsy is a disorder characterized by recurring seizures (also known as “seizure disorder”) A seizure is a symptom of epilepsy

Who Has Epilepsy? About 2.3 million Americans have epilepsy (0.5-1% of the population) Roughly 181,000 new cases of seizures and epilepsy occur each year 50% of people with epilepsy develop seizures by the age of 25; however, anyone can get epilepsy at any time Now there are as many people with epilepsy who are 60 or older as children aged 10 or younger

The Brain Is the Source of Epilepsy All brain functions -- including feeling, seeing, thinking, and moving muscles -- depend on electrical signals passed between nerve cells in the brain A seizure occurs when too many nerve cells in the brain “fire” too quickly causing an “electrical storm”

What Causes Epilepsy? In about 70% of people with epilepsy, the cause is not known In 30%, most common causes are: - Head trauma -Infection of brain tissue -Brain tumor and stroke -Heredity - Prenatal disturbance of brain development

What Happens During a Seizure Generalized seizure –Involve the whole brain and loss of consciousness Absence: characterized by brief loss of consciousness Tonic-clonic: characterized by rhythmic jerking of muscles Partial seizure –Involve only part of the brain; may or may not include loss of consciousness Symptoms relate to the part of the brain affected

Classifying Epilepsy and Seizures Classifying epilepsy involves more than just seizure type Seizure types: Partial Generalized SimpleComplexAbsenceConvulsive Consciousness is maintained Consciousness is lost or impaired Altered awarenessCharacterized by muscle contractions with or without loss of consciousness

Symptoms That May Indicate a Seizure Disorder Periods of blackout or confused memory Occasional “fainting spells” Episodes of blank staring Sudden falls for no apparent reason Episodes of blinking or chewing at inappropriate times A convulsion, with or without fever Clusters of swift jerking movements in babies

Everything you do, you do with your brain!

Different parts have different functions, and different seizures!

Clinical Assessment –Patient history –Tests (blood, EEG, CT, MRI or PET scans) –Neurologic exam ID of seizure type Clinical evaluation to look for causes How Is Epilepsy Diagnosed?

What to Tell Your Doctor About Your Seizures Symptoms Seizure patterns Pre-seizure activity (if any) How you felt after the seizure Consider keeping a seizure record

Tools to Confirm the Diagnosis of Epilepsy EEG Imaging Scans (Abnormal electricity)(Lesions)

Seizure Triggers Missed medication (#1 reason) Stress, anxiety Hormonal changes, Menses Dehydration Lack of sleep, extreme fatigue Photosensitivity Illicit Drug, alcohol use Certain Medications Fever in Some Children

Treatment Goals in Epilepsy Help person with epilepsy lead full and productive life Eliminate seizures without producing side effects Tailor treatment to needs of individuals/special populations : Women, Children, Elderly, Hepatic or renal failure and other diseases

What if not treated? Seizures can be potentially life threatening with brain failure, heart and lung failure, trauma, accidents Sudden Unexpected Death in Epilepsy (SUDEP) Even subtle seizures can cause small damage in brain Long Term problems: fall in IQ, depression, suicide, Social Problems, Quality of Life

Types of Treatment Medication Surgery Nonpharmacologic treatment Ketogenic diet Vagus nerve stimulation Lifestyle modifications

Considerations in Epilepsy Management Age and Gender Seizure Frequency Underlying Pathology Comorbidities Medication Side Effects Syndrome vs Seizure Type

Factors That Affect the Choice of Drug Seizure type/ Epilepsy syndrome Side effects & safety Patient age Ease of Use Lifestyle Age, Sex, Childbearing potential Other medications

Consistent use Inadequate dosage or ineffective medication Drug factors Disease Seizures eliminated (50% of people) Seizures markedly reduced (30%) Seizures do not respond (20%) Factors That Influence Response to Medication

Tolerating Medications Most Common Side Effects Rash Clumsiness Drowsiness Irritability Nausea * Side effects may be related to dose * Care must be taken in discontinuing drug due to risk of seizure recurrence Warning Signs of Possible Serious Side Effects Prolonged fever Rash, nausea/vomiting Severe sore throat Mouth ulcers Easy bruising Pinpoint bleeding Weakness Fatigue Swollen glands Lack of appetite Abdominal pain

Positive Characteristics of New Seizure Medications  Efficacy at least equal to older agents.  Many possess broad spectrum of activity.  Most also good as single agent.  Safer, better tolerated, improved quality of living.  Blood testing often not necessary.  Less live metabolism and protein binding.  Less drug interactions.

Epilepsy Surgery Factors influencing decision Likelihood seizures are due to epilepsy Likelihood surgery will help Ability to identify focus of seizures Other treatments attempted, and seizures couldn’t be treated with 2-3 medications Benefits vs risks

Vagus Nerve Stimulation Device is implanted to control seizures by delivering electrical stimulation to the vagus nerve in the neck, which relays impulses to widespread areas of the brain Used to treat partial seizures when medication does not work  Courtesy of Cyberonics Inc. 

Ketogenic Diet Based on finding that starvation -- which burns fat for energy -- has an antiepileptic effect Used primarily to treat severe childhood epilepsy, has been effective in some adults & adolescents High fat, low carbohydrate and protein intake Usually started in hospital Requires strong family commitment

Stay calm and track time Protect head, remove glasses, loosen tight neckwear Move anything hard or sharp out of the way Turn person on one side, position mouth to ground Check for epilepsy or seizure disorder ID Understand that verbal instructions may not be obeyed Stay until person is fully aware and help reorient them Call ambulance if seizure lasts more than 5 minutes or if it is unknown whether the person has had prior seizures First Aid for Seizures

Potentially Dangerous Responses to Seizure Don’t restrain person Don’t put anything in the person’s mouth Don’t try to hold down or restrain the person Don’t attempt to give oral antiseizure medication Don’t keep the person on their back face up

When to Call 911 or Emergency Medical Services A convulsive seizure occurs in a person not known to have seizures or lasts more than 5 minutes A complex partial seizure lasts more than 5 minutes BEYOND its usual duration for the individual Another seizure begins before the person regains consciousness Also call if the person: –Is injured or pregnant –Has diabetes/other medical condition –Recovers slowly –Does not resume normal breathing

Safety Issues for Patients with Epilepsy Cant Drive for about a year after the last seizure (NY State) Climbing altitudes Swimming/ Bathing alone Operating heavy machinery or weapons that can be dangerous Cooking, hot water Taking care of babies Bone Health

Effect of Epilepsy on Family “…I just need to remember that things happen for a reason, and that we will cope with whatever comes our way. It is okay not to like it, as seizures aren’t fun and can be scary. Epilepsy doesn’t have to rule our lives -- as long as we have people who will listen to us, believe us, and give us honest answers.”

Epilepsy in Women Hormonal effects Hormonal changes during puberty, menopause, and the monthly cycle may affect seizure frequency Polycystic ovary syndrome Sexuality & contraception Sexual dysfunction Birth control pills may be less effective Pregnancy & motherhood Need to continue medication Slight increased risk for birth defects

Epilepsy in Older Adults Epilepsy is common in the elderly, and is often unrecognized or misdiagnosed Older people face increased treatment risks Maintaining independence is a challenge after the diagnosis of epilepsy

Groups at Increased Risk for Epilepsy About 1% of the general population develops epilepsy The risk is higher in people with certain medical conditions: Mental retardation Cerebral palsy Alzheimer’s disease Stroke Autism

Epilepsy in Infants & Young Children Balancing normal development and the special concerns of epilepsy Good parenting skills Childcare Effects on brothers and sisters Early childhood intervention services

Epilepsy in Children Aged 6-12 Handling feelings Family relationships Safety School and childcare Developmental stages

Epilepsy in Teens & Young Adults Assuming responsibility Dealing with feelings Friends and social pressures School Driving Drinking Dating Employment

Other Treatment Approaches Behavioral therapy Biofeedback Relaxation Positive reinforcement Cognitive therapy Aromatherapy

National and Community Resources The Epilepsy Foundation Local affiliates, NY Chapter Website: MedicAlert Foundation Social Security Administration Accreditation Council on Services for People with Disabilities US Dept of Education State Offices Vocational Rehabilitation Protection and Advocacy Division of Developmental Disabilities

Services at Epilepsy Centers Routine-EEG Ambulatory-EEG (up to 48 hours) Video-EEG Epilepsy Monitoring (few days) MRI/CT PET-CT Scans Vagal Nerve Stimulation Pre-surgical Evaluation Epilepsy Surgery Neuro-psychology Support Groups

Thank You for your Attention