Attention Deficit Disorder and Learning Disorders

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    Attention Deficit Disorder and Learning Disorders

    David Johnson, M.D.

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    Attention Deficit Hyperactivity Disorder

    A persistent (more than 6 months) cluster of behaviors character-

    ized by inattention, hyperactivity, and impulsivity with the follow-

    ing features:

    Behaviors are more frequent and more severe than occurs

    in most children at a comparable developmental level

    Behaviors began before 7 years of age

    Behaviors are manifested in two or more settings (eg, school

    and at home)

    Behaviors cause clinically significant dysfunction in social,

    academic, occupational, or family function

    Attention and learning disorders in children are very common

    problems. Primary care pediatricians should be the ones to make the

    diagnosis and do the treatment in the majority of children. You do not

    need a specialist in developmental/behavioral pediatrics to treat most

    kids or diagnose most kids with ADHD.

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    Attention Deficit Hyperactivity Disorder:

    DSM IV Criteria

    1. Inattention:Six or more of the following.

    often flails to give close attention to details or makes care-

    less mistakes in schoolwork, work, or other activities.

    often has difficulty sustaining attention in tasks or playactivities.

    often does not seem to listen when spoken to directly.

    often does not follow through on instructions and fails to

    finish schoolwork, chores, or duties in the workplace (not

    because of oppositional behavior or inability to understand

    directions).

    often has difficulties organizing tasks and activities.

    often avoids, dislikes, or is reluctant to engage in tasks that

    require sustained mental effort (such as schoolwork or

    homework). often loses things necessary for tasks and activities (eg,

    school assignments, pencils, books, tools).

    is often distracted by extraneous stimuli.

    is often forgetful in daily activities.

    ADHD and the new DSM IV criteria. ADHD is defined as a persistent,

    that is more than 6 month cluster of behaviors. It's a behavioral cluster

    that has to have been going on for awhile - it can't just have started last

    week or last month. The behaviors are more frequent and more severe

    than most children at a comparable developmental level. This is very

    subjective, and part of the whole problem with diagnosing ADHD is

    there is no one way to make the diagnosis. There is no specific test. It

    is defined as behavior that is just more frequent and more severe than

    most children at a comparable level. It has to begin before seven years

    of age. It is not something that begins later on.

    Most importantly, it has to be manifested in two or more settings:

    school or work and home. If you just have these behaviors occurring

    in one setting only, that is not ADHD. If it is only at home and not at

    school, it is not ADHD. If it is only at school and not at home, that is

    not ADHD. You should be thinking of other parts of your differential

    diagnosis. So, ADHD has to occur in at least two or more settings.

    Finally to make the diagnosis, it has to cause clinically significant

    dysfunction in the social, academic, occupational, or family setting.

    There are some kids you'll see, that you will say to yourself, "this kid

    has ADHD. He's wild." But, he's doing great. He has friends. He's

    doing well in school. The school has adapted to him. The family has

    adapted to him. You might not make the diagnosis in that child

    because there is not a clinically significant dysfunction. With the same

    child in another setting who has a lot of problems in school and at

    home, you might make the diagnosis. So the diagnosis of ADHD is

    tough because there are these subjective features. And even among

    experts, so-called experts, people will disagree with the diagnosis.

    The DSM IV criteria. For inattention, you have to have six or more of

    the following. One fails to give close attention to details or makes

    careless mistakes in school work, work outside the home, or in other

    activities. They often have difficulty sustaining attention in tasks or

    play activities. What is important is sustaining attention when it is not

    easy to sustain attention, when it takes a little more effort, that is when

    ADHD shows up. The parents say, "He can play Nintendo for two

    hours." and therefore he doesn't have ADHD. But that is not true.

    Because think of the kind of attention that it takes to play Nintendo.

    Whereas you have to pay attention to what's going on it is always

    changing. You are not sitting laboriously studying one thing or looking

    at a number of things as you do in school. Does not seem to listen

    when spoken to directly.

    Often does not follow through on instructions and fails to finish

    schoolwork, chores or duties in the workplace (not because of

    oppositional behavior or inability to understand directions). He just

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    2. Hyperactivity - Impulsivity: 6 or more of the following.

    Hyperactivity

    often fidgets with hands or feet or squirms in seat.

    often leaves seat in classroom (or in other situations where

    remaining in seat is expected).

    often runs about or climbs excessively in situations where it

    is inappropriate (in adolescents or adults, feature may be

    limited to subjective feelings of restlessness).

    often has difficulties playing or engaging in leisure activities

    quietly.

    is often on the go or often acts as is driven by a motor.

    often talks excessively.

    Impulsivity

    often blurts out answers before questions have been

    completed.

    often has difficulty awaiting turn.

    often interrupts or intrudes on others (eg, butts into conver-

    sations or games).

    can't get things done. Keeps trying a million projects, none of which

    get completed on time, if they get completed at all. Often has difficul-

    ties organizing tasks and activities. And often avoids, dislikes or is

    reluctant to engage in tasks that require sustained mental effort, such

    as schoolwork, homework.

    Again inattention, six or more of these. Often loses things necessary for

    tasks and activities, like school assignments, pencils, or books. Is often

    distracted by extraneous stimuli. These are the kind of kids who are in

    your office and they hear someone crying next door and they are

    already over there looking to see what is happening. Something is

    going on in the waiting room and they are looking over there. They are

    extremely distractible. Their attention cannot stay focused unless it is

    a quiet environment with very little else going on. And finally, is often

    forgetful in daily activities. Many people are diagnosing themselves

    with ADHD. Because it's on a continuum and all of us have, to a

    greater or lesser degree, some of these issues. The question is, is it

    causing dysfunction in our lives, and that is really a key question in

    making a diagnosis.

    The second aspect of ADHD, after inattention, is hyperactivity. As you

    know, you can have inattention without hyperactivity. So, six or more

    of the following.

    Often fidgets with hands or feet or squirms in seat. ADHD kids didn't

    move more than non-ADHD kids. It was that it was non-directional,

    non-purposeful movements that happened more--squirming, fidgeting

    all the time. When sitting in their seats, their foot is always racing.

    They are always squirming, fidgeting around. When watching

    television, they are in one position, then another position, then they're

    on the floor and so on.

    Often leaves seat in classroom or in other situations where remaining

    in seat is expected. Often runs about or climbs excessively in situations

    where it is inappropriate. Sometimes they have no sense of fear. They

    are fearless at climbing and running around. In adolescents or adults

    this may be manifested in more subjective feelings of restlessness. The

    child feel restless and squirmy. The hyperactivity may go away, and

    often usually does go away in older children and adults, but the

    internal sensation of feeling restlessness persists. Often has difficulties

    playing or engaging in leisure activities quietly. These are boisterous

    kids. They are often "on the go" or act as if "driven by a motor". They

    are talkative kids who talk excessively all the time. That is the second

    part of the triad of ADHD, inattention and hyperactivity.

    Thirdly, there is impulsivity. Often blurts out answers before questions

    have been completed. Often has difficulty awaiting turn. Often

    interrupts or intrudes on others, like butting into conversations or

    games. It's almost as if there is no inhibition. There is no sensor

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    DSM IV: Types of ADHD Patients

    1. ADHD, Combined type (if criteria for both inattention and

    hyperactivity are met)

    2. ADHD, predominantly inattentive type

    3. ADHD, predominately hyperactive impulsive type

    between the thought and the action. Most of us have thoughts. We

    want to do things, but we have the ability to pull in or rein in the

    impulses. But for some kids, the thought is the action--there is nothing

    in between. It is a disinhibition that causes them their impulsivity.

    Some people view ADHD as a disorder of disinhibition, inability to

    inhibit action in activity, inability to inhibit wandering attention and

    inability to inhibit impulsivity.

    The DSM IV then describes three types of ADHD. The combined

    type, if the criteria for inattention as well as hyperactivity or

    impulsivity are met. ADHD, predominantly inattentive type. These

    are kids who are usually not diagnosed until they are school-age

    because they are not hyperactive, but have a very difficult time in

    school paying attention and achieving their potential in school

    because of attentional problems. Some people feel that the incidence

    of males and females for the inattentive type is about the same,

    although it is much higher for the hyperactive type in males than

    females. And then primarily hyperactive-impulsive type, which is

    much less common.

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    Differential Diagnosis of ADHD

    Active, normal child

    Acute or chronic stress

    Post-traumatic Stress Disorder

    Anxiety disorder

    Depression

    Under stimulation

    Oppositional behavior or conduct disorder

    Learning Disorder

    Early mood disorder

    Differential diagnosis. The first part of any differential diagnosis is

    always, "This is an active, normal child. This is a very active child

    but not a hyperactive child. And that is a very difficult decision to

    make. I would stress that it is probably based more on the issue of

    dysfunction in the child's life than an absolute level of activity or

    inattention. The child is able to do well, has friends and so on - you

    may just say this is a very active child. The same child though who

    is not doing well in school or socially, you might say has ADHD.

    Acute or chronic stress. Some kids will respond in a way that is very

    ADHD-like to stress in their lives. Stress of any sort. Again as

    primary care physicians, you are in the best position to know if it is

    stress that is engendering these behaviors in kids. Post traumatic

    stress disorder (PTSD) occurs in children who witness a lot of

    violence. Children who have been traumatized themselves can look

    very much like ADHD. And again, you need to know what the

    environmental context of these behaviors are before you reach the

    conclusion that this is an endogenous problem in the child that has

    ADHD. Anxiety disorders, depression, the child is understimulated,

    oppositional behaviors, conduct disorders, learning disabilities, and

    early mood disorders. It is very interesting when people go back and

    look at adults who have bipolar disorder, manic depressive disorder,

    serious depression, they were often diagnosed in childhood as

    having ADHD. Again, this is one of the things that is going to be

    hard to know unless there is a positive family history. But it looks

    like some children, who will eventually have significant psychiatric

    mood disorders as young adults or adults, will for look like they had

    ADHD when they were young children.

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    Important Coexisting Features of ADHD,

    Not in DSM Criteria

    emotional lability / immaturity

    resistance to reinforcement

    aggressiveness

    academic problems poor social skills

    poor peer relations

    - Poor Self-esteem

    Kids with ADHD tend to have emotional lability and immaturity.

    Other kids see them as babies. They cry a lot, they laugh a lot.

    They're up, they're down. They seem to be really immature. It's

    almost as if their emotions are as labile and hyperactive as every-

    thing else about them. They seem to be resistant to reinforcement.

    When we talk to parents, and say, "Try this. Try 'time out'." They

    say, "I tried it. I tried it and nothing works." In fact, that is one of the

    hardest parts of dealing with hyperactive kids is that they are more

    relatively resistant to reinforcement than other children, positive or

    negative reinforcement. They just can't seem to inhibit themselves

    no matter much how reinforcement you use.

    They may be aggressive. If there is one red flag about long term

    outcome in children with ADHD, it is the aggressive child of

    ADHD. When we look at long term studies, it is the ones who were

    really aggressive in early childhood who are the most worrisome for

    a bad long term outcome. And that should be a major red flag. If it is

    a very aggressive child with ADHD, then that child definitely needs

    counseling among the other modalities that you will use for the

    child. So, aggressiveness is very important to ask about in terms of

    long term prognosis. Academic problems clearly go along with

    ADHD, as well as learning disabilities. Poor social skills and poor

    peer relations should be sought.

    One way to differentiate the very active child from an ADHD child

    is that generally the very active child is accepted by his peers, and I

    say "his" because males outnumber females 6:1. Very active chil-

    dren are accepted by the peers, full of energy, very active, and other

    kids like him. ADHD kids are not so much fun. They butt in, they

    are babies, they can't inhibit themselves, they don't play the games

    correctly, they may miss social cues. Often, other kids don't like

    them. After treating their ADHD, these children may for the first

    time be asked to play by other children. Social dysfunction as part of

    ADHD. Other kids don't like them.

    The bottom line, and I think in some ways the most pernicious

    aspect of ADHD in the long run, is poor self-esteem. You put all

    these things together, the child is having trouble with his parents,

    not doing well in school, none of the kids like him. He really gets a

    sense of himself that he's just not worth very much, and that sense of

    himself may dog him all his days, long after perhaps he learns to

    cope with his ADHD symptoms. One of the most important things

    that you can do is emphasize to parents the importance of self-

    esteem. Try to help the child to find islands of confidence in feeling

    good about himself because in the long run that may be the most

    important therapy of all.

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    Prevalence of ADHD

    4-6% of elementary school children

    Male to female ratio is 6:1

    ? on the rise or more diagnostic sensitivity or overdiagnosed?

    much higher incidence in first and second degree relatives

    The prevalence of ADHD is up to 25%, and these kids are on

    Ritalin. In other communities 0%. I think it is the most

    overdiagnosed and most underdiagnosed condition in childhood. So,

    it kind of depends on where you live and who you see.

    The best estimates I would say are 4-6% of elementary school

    children may have ADHD. So if you see a lot higher, you know

    something is up. There is a higher incidence in first and second

    degree relatives. So, family history is helpful in this.

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    Etiology of ADHD

    The etiology is unknown

    believed to have a neurological basis (underactivity of frontal

    lobes on PET scan; decreased dopamine metabolites in CSF)

    We believe that ADHD is endogenous, not environmentally medi-

    ated in any way. It is believed to have a neurological basis. There

    have been studies showing the underactivity of frontal and

    prefrontal lobes on PET scans. Decreased dopamine metabolites in

    CSF. It's been associated with maternal smoking, prematurity. At

    this point we really don't know.

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    Clinical Diagnosis of ADHD

    Corroboration. A questionnaire or interview of most or all of the

    child's significant caregivers should assess the presence and

    severity of symptoms. Clinical judgment is essential.

    History

    Symptoms are evaluated.

    Complicating home or social stressors is assessed.

    Cognitive and academic performance is documented.

    The impact of symptoms on the rest of the family, including

    the parent, is evaluated.

    Child and sibling relationships are evaluated.

    Treatments tried in the past are sought.

    Physical exam

    Most useful to assess child's response to a structured

    situation

    Neurological exam (e.g., clumsiness, "soft signs" not helpful;

    hearing, tics)

    Minor congenital or anomalies

    Skin for neurocutaneous stigmata

    Laboratory evaluation should include lead levels, anemia,

    ?hyperthyroidism.

    In making the diagnosis, you have to seek corroboration, via ques-

    tionnaires or interview, of the symptoms from most or all of the

    child's significant caregivers. You never should make the diagnosis

    just because you think it's true and the parent thinks it's true. That is

    not enough because some kids can keep it together in the office very

    well in a short visit. I have the luxury now of sometimes hour and

    half evaluations in an academic setting and it isn't until an hour into

    the evaluation the kid is beginning to show his true colors. The

    clinicians perception of ADHD in the office does not necessarily

    correlate. The child may be very anxious in the office and look like

    he has ADHD when he doesn't, or conversely, be very quiet in the

    office but if he stuck with it longer you'd see the symptoms.

    In making the diagnosis it has to be in more than one setting. If the

    parents give you a good history that's great. But you have to seek

    corroboration in other important aspects of the child's life. If it's

    daycare, if it's school, if it's Head Start, if it's grandparents, if it's the

    babysitter. You need to hear from them too because to make the

    diagnosis they have to have the symptoms across settings. If the

    babysitter says, "No, he's great. I have no problems at all." then you

    really need to question whether this is ADHD or not.

    Aside from history of symptoms, which you'll ask about, you'll

    certainly want to know about complicating home and social stress-

    ors. Looking at the environmental context. How the child is doing

    cognitively and academically.

    Physical exam I think is generally not that helpful. You need to do

    it, but there are almost no medical problems that you are going to be

    ruling out. I think the physical exam is most useful to assess the

    child's response to a structured situation and whether the child acts

    like a kid with ADHD when you are examining him or her, as

    opposed to looking for any special physical finding or medical

    finding.

    Minor congenital anomalies. There is increased ADHD in children

    with minor congenital anomalies. But again it is not going to help

    you so much with diagnosis. Looking for neurocutaneous stigmata,

    just to make sure you're not missing something like

    neurofibromatosis or tubular sclerosis. Lead, anemia,

    hyperthyroidism should also be excluded.

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    Diagnostic testing in ADHD

    Testing is indicated only as indicated by the history and physical

    examination.

    Computer vigilance tests are not clinically useful.

    The value of educational/neuropsychological testing is question-

    able because of the 40% co-occurrence of learning disabilities.

    The use of the diagnostic test will be basically based on a history

    and physical exam. Computer vigilance tests are not that helpful

    currently. There are too many false positives and false negatives for

    it to be useful. If the child is doing well in school, I hold off on the

    learning disabilities evaluation, if I think it is purely ADHD. On the

    other hand, if the child is doing poorly at school, you may want to

    try medication. If the medication works and the child continues to

    do poorly in school, you should get a learning disabilities evalua-

    tion, or you may want to do the learning disabilities evaluation

    initially.

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    Learning Disorders

    Learning disorder is a generic term referring to a heterogeneous

    group of disorders manifested by significant difficulties in the acquisi-

    tion and use of reading (dyslexia), writing (dysgraphia) and/or

    mathematical abilities (dyscalculia).

    These disorders are intrinsic to the individual and presumed tooccur secondary to central nervous system dysfunction.

    Learning disabilities. Learning disabilities are characterized by a

    substantial discrepancy between ability as measured in an IQ test, as

    much as that measures ability, and academic performance. The kind

    of kid who is smart, but is just not doing well in school--should be

    doing a lot better but isn't. You need that discrepancy. Difficulties

    with neurodevelopmental functions such as language, memory,

    visual-spatial ordering, temporal-sequential ordering. Different

    kinds of ways of processing information seem to have problems.

    These will come out best with neurodevelopmental testing. These

    children also have difficulties with what people are now calling

    executive functions. These are higher order mental processes, such

    as concept acquisition, reasoning, problem-solving skills, critical

    thinking and social cognition.

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    Learning Disorder

    characterized by a substantial discrepancy between ability (as

    measured on IQ tests) and actual academic performance.

    difficulties with neurodevelopmental functions such as language,

    memory, visual-spatial ordering, temporal-sequential ordering.

    difficulties with executive functions such as concept acquisition,

    reasoning, problem-solving skills, critical thinking, social cogni-

    tion

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    Prevalence of Learning Disorder

    5% of American schoolchildren are identified as having a

    learning disorder. Some estimates as high as 15%.

    male to female ratio is 4:1.

    About 5% of American schoolchildren are identified as having

    learning disabilities. Some people think it is a lot more, again. The

    gradation between a learning disability and non-learning disability is

    tough. All of us have strengths and weaknesses in our functioning.

    Some estimates are as high as 15%. Again, males get the short end

    of the stick, 4:1 as usual.

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    Etiology of Learning Disorder

    The etiology is unknown

    There is often a strong family history

    Dyslexia is now believed to be caused by dysfunction in phone-

    mic awareness.

    20 % of all boys and girls may be dyslexic.

    The belief that letter reversal is indicative of dyslexia is a

    Myth.

    The etiology is unclear. There is often a strong family history.

    Dyslexia. People used to talk about dyslexia as reading letters

    backwards, writing letters backwards. It is now felt that dyslexia has

    nothing to do with that. It doesn't matter if you write your letters

    backwards or not. It is that dyslexia is a dysfunction in phonemic

    awareness. That the children cannot process phonemes, the funda-

    mental building block sounds, of language. They can't differentiate

    "da" from "pa" very well. And because they can't differentiate these

    phonemes they can't then begin to understand the words. They can't

    differentiate one from the other when it comes to reading. They are

    unable to do that. So, if they take the word "cat", they cannot decode

    the word "cat" and therefore can't identify the word. In effect, their

    ability to read specifically those words, even though they know what

    a cat is.

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    Consequences of Learning Disorder

    The school drop-out rate is 40%.

    Trouble keeping a job and problems with peer relations are

    frequent.

    10-25% coexist with conduct disorder, oppositional defiant

    disorder, depression, or ADHD

    Concomitants to learning disabilities. The high school drop-out rate

    is 40%. Many kids who drop out of school have learning disabilities,

    trouble keeping a job, problems with peer relations, and again, the

    co-occurrence with conduct disorders, oppositional defiant disorder,

    depression or ADHD.

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    Office assessment of Learning Disorder

    Physical examination and laboratory tests are rarely useful.

    Clinical Evaluation of Learning Disorder:

    academic achievement

    classroom behavior

    attendance

    previous special testing and services at school

    medical/perinatal history

    developmental/behavioral history

    family / social history

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    Assessment of Learning Disorder

    Initial assessment should start with the school (a mandate under

    Public Law 94-142).

    Parents have the right to an independent, second opinion.

    A multi-disciplinary is recommended, but an assessment by a

    psychologist is best if only one professional is allowed.

    If you want an assessment done too, you can start with the school

    and mandate under Public Law 94-142 that the school do an evalua-

    tion for learning disabilities. The parents then have a right for an

    independent second opinion if they don't agree with what the school

    has said. Multidisciplinary evaluations are usually best, but I would

    say if you were going to pick one, pick a psychologist or a

    neuropsychologist to do the evaluation.

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    Treatment of Learning Disorder

    bypass strategies (e.g., decrease rate, volume, complexity of

    task, go to auditory or visual mode, play to interests, use a

    computer) skill remediation

    developmental therapies (OT, speech, physical therapy)

    curriculum modification

    enhance strengths

    Treatment of learning disabilities. Bypass strategies are used, so that

    decreasing the rate or volume or complexity of the task, even in

    small chunks, to work on at a time going in just the auditory or

    visual mode. If you have trouble with auditory processing, you have

    to learn visually. If you can hear things and remember things well

    aurally but not visually, then you need to hear things and not so

    much see them to do better in school. Computers seem to be very

    helpful in teaching learning disabled kids. I think there is wonderful

    potential in that area to learn at their own rate in the modality that

    works best for them, whether it is visual or auditory.

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    Management of ADHD

    Goals

    Enhance social functioning

    Enhance academic functioning

    Improve self-esteem

    ADHD is really is a family problem. Kids with ADHD aren't fun.

    But I think our role in the management of ADHD is critical in trying

    to help the children. Especially by looking at enhancing social

    functioning, academic functioning and emphasizing the importance

    of self-esteem. The second thing we can do though is use medica-

    tions. There is no question that the best treatment for a child who

    truly has ADHD are medications. They are effective in about 70% of

    the cases but they are not a cure. They improve symptomatology,

    but the symptoms, although they will change over time, will proba-

    bly last a lifetime. The long term efficacy of medications is still not

    entirely clear. It's clear in the short term, it works, but in the long

    run, we think it works, but the studies are not there to confirm it.

    Ritalin is not a diagnostic test. If the child pays attention better it

    doesn't matter. You would pay attention better if you took Ritalin. In

    fact, I remember that people at school used it to study for finals

    sometimes, illicitly. Ritalin improves attention for everybody, in all

    kids. So the fact that a child does have a positive response doesn't

    mean that they have ADHD.

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    Medical Management of ADHD

    Medications are effective in 70% of cases

    medications are not a cure-all; long term efficacy data remains

    inconclusive

    not a diagnostic test!

    I think that you should be very comfortable in using at least Ritalin

    and Dexedrine. We usually mention pemoline, or Cylert. You may

    have read the cautions about liver disease in Cylert, so I would

    relegate it to a second line, although I still think you should be

    comfortable with it. I use psychostimulants first. There are a few

    rules to remember. One is that in the clinical trial, the decisions are

    reversible. Just because you start it doesn't mean you can't stop it.

    And you should present it to the parents as such. "We don't know if

    it is going to work. Maybe it will work. If you like the idea, we can

    try it. If you don't like it, we'll stop it. You need to do frequent

    follow-up, at least until the child stabilizes. It is not the only treat-

    ment. It is best used as part of a multi-modal treatment, including

    educational, behavioral and counseling, if needed.

    Ritalin is great and it helps, but the children may need help at

    school. They may need counseling. The long term studies show that

    the kids who do best are the ones who get multi-modal treatment.

    You need to obtain ongoing efficacy and feedback from the same

    caretakers who provided the history. If you asked the daycare pro-

    vider if the child had ADHD through questionnaires or calling them

    on the phone. If one medication doesn't work, try another. It is pretty

    clear that some kids respond better to Dexedrine than they do to

    Ritalin or to Ritalin than to Dexedrine or to pemoline or any of the

    others. So, that it is worth it to go through all three. You might think

    about whether they want to try some of the second line drugs, like

    clonidine or tricyclic antidepressants.

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    Drug Therapy of ADHD

    Rule 1: Drug use is a clinical trial and decisions should be reversible.

    Rule 2: Frequent follow-up is necessary until stabilized.

    Rule 3: Drug therapy is best used as a part of multi-modal treatment,

    including education, behavioral therapy, and counseling.

    Rule 4: Obtain ongoing efficacy feedback from the caretakers who

    provided the initial history. Adjust medications accordingly.Rule 5: If one medication doesn't work, try another.

    Stimulants are the drug of choice. The good news is there is very

    high efficacy and low morbidity to Ritalin and Dexedrine in chil-

    dren. They have been extensively studied and they are very safe

    when used correctly and you should feel comfortable about using

    those. Many people start with Ritalin or Dexedrine.

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    Stimulants Are Drugs of Choice

    High eff icacy/low morbidity

    Stimulants may increase the number of adrenergic receptors in

    brain that stimulate attention and inhibitory centers.

    Physicians should pick one or two agents and become comfort-

    able with their use.

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    Methylphenidate and Dextroamphetamine

    Start with about 0.3 mg/kg/dose of methylphenidate (MPD) or

    0.15 mg/kg/dose of dextroamphetamine (DA).

    Increase every few days up to maximum of 1.0 mg/kg/dose (80

    mg/day max) for MPD (1/2 dose to DA).

    Onset 30 minutes; peak 2 hours; quite variable.

    Frequency depends on target symptoms and setting.

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    Short or Long-acting Stimulant?

    Calculate daily dose of short-acting and convert to long-acting

    Balance convenience vs erratic absorption

    Consider effects on appetite

    Short-acting or long-acting. Remember the problem with long-

    acting is erratic absorption, so that the sustained release may last

    longer but you never know when you are going to get the effect. It is

    perfectly legitimate to titrate short-acting and long-acting.

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    Side Effects of Stimulants

    Appetite suppression

    Sleep disturbance

    Rebound hyperactivity vs. paradoxical effect

    Emotional dysphoria ("zombie")

    Questionable growth retardation

    Tics

    Side effects include appetite suppression, sleep disturbances, re-

    bound hyperactivity, paradoxical effects., emotional dysphoria or

    "zombie"-like kids is really something to watch for especially in

    younger kids. Growth retardation, which probably doesn't exist and

    if it does, it is no more than 2%, the studies have shown. It is gener-

    ally not a real concern. And finally, tics. Tics will occur frequently

    and nobody really feels that stimulants caused the tics, but we may

    uncover tics in the child who has a pre-existing tic disorder, like

    Tourette's, which may not show up beforehand. On the other hand,

    in any child who has tics, I probably would not use any of the

    stimulants, and clonidine is probably the drug of choice.

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    Second line drugs

    Clonidine

    Desipramine

    ?SSRIs (Prozac)

    There is a second line now, you may or may not use. I am getting

    comfortable now using clonidine. I still am not comfortable using

    the tricyclics, desipramine, and I refer those out if the child is also

    depressed, especially if he has ADHD. People are now beginning to

    use the serotonin, reuptake inhibitors, like Prozac. It is not clear how

    well they will work.

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    Parent Counseling

    Provide information; demystify; take onus off child

    Explain there is no cure, only coping

    Emphasize importance of enhancing self-esteem

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    Parent Training

    Positive reinforcement; minimize punishment; differential

    attention ("time-in")

    Make positive prophecies; avoid negative character attributions

    Discriminate necessary versus unnecessary limit-setting

    Provide environments that are free of restraint

    Finding something positive for that child to do that plays into their

    strengths and not their weaknesses helps with self-esteem. Looking

    at the environments. These kids need to be able to run and have a

    good time and not be fenced in. Looking at the environment and the

    quality of the environment. In letting the child have opportunities to

    run and play and be free because that's what his nature tells him he

    needs to do. Talk to parents about positive reinforcement, differen-

    tial attention ("time-out") and so on. Making positive prophecies for

    the child. "It's going to be good." as opposed to "It's going to be

    bad." Discriminating necessary and unnecessary limits. These are all

    common behavioral interventions you'll use in other areas.

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    Classroom Therapy

    Consistent with home program

    Immediate and frequent consequences for misbehavior

    Concrete rules

    Hierarchy of rewards and punishments

    Extra supervision and training

    Allow time for uninhibited play

    The classroom should be involved too and this needs to be consis-

    tent with the home program with immediate and frequent conse-

    quences for misbehavior and positive behavior. Concrete rules. A

    hierarchy of rewards and punishments and some time for uninhibited

    play are important interventions.

    And then for the kids counseling and psychotherapy. If the child's

    self-esteem is really low, if they are aggressive, if they are having a

    really hard time, I think that counseling is helpful. Not to stop him

    from having ADHD, but in dealing with the emotional consequences

    of ADHD and/or a learning disability. Find successful activities and

    awareness.

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    Prognosis of ADHD

    Symptoms persist in the majority, but change in nature (eg,

    hyperactivity replaced by feelings of restlessness).

    Most studies show a higher incidence of problems: Anti-social

    behavior, violating the law (20-25%), substance abuse (16%),

    other DSM diagnosis (33%)

    Some have poorer work performance; adaptive problems; poor

    interpersonal skills.

    On the other hand, the majority become normal (especially if not

    aggressive, high IQ, high socioeconomic scale, multi-modal

    treatment)

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    References

    Dworkin P. School failure. in: Parker S and Zuckerman B: Behavioral

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    Levine M. Neurodevelopmental variation and dysfunction among

    school-aged children. In Levine M, Carey W, Crocker A:

    Developmental-behavioral pediatrics. Philadelphia: Saunders, 1992,

    pp 477-494.

    Sprague R, Sleator E. Methylphenidate in hyperkinetic children:

    Differences in dose-effects on learning and social behavior. Science

    198:1274, 1977.

    Manhuzza S, et al. Adult outcome of hyperactive boys. Arch Gen

    Psychiatry 50:565,1993.