Atualização de março de 2009
1. Methylphenidate in the treatment of female adolescents with cooccurrence
of attention deficit/hyperactivity disorder and borderline personality disorder:
a preliminary open-label trial.
Int Clin Psychopharmacol. 2008 Jul; 23(4):228-31
Golubchik P, Sever J, Zalsman G, Weizman A.
Child and Adolescent Outpatient Clinic, Geha Mental Health Center, Petah Tiqva,
Israel. pgolubchik@clalit.org.il
Recent studies reported symptomatic overlap between attention deficit/hyperactivity
disorder (ADHD) and borderline personality disorder (BPD). Methylphenidate (MPH)
is the most efficient treatment for ADHD. We assessed the efficacy and tolerability
of MPH treatment in adolescent females who met the Diagnostic and Statistical
Manual of Mental Disorders (DSM)-IV criteria for both disorders. Fourteen BPD/ADHD
female adolescents aged 14-19 years were treated with MPH for 12 weeks, targeting
ADHD, BPD symptoms, and aggressive behavior, as rated by ADHD-rating scale (ADHD-RS)
and Clinical Global Impression-Severity (CGI-S) scale for BPD and aggressive
behavior severity. A significant improvement was detected in both ADHD and BPD
severity (baseline vs. end point, ADHD-RS: 33.1+/-4.8 vs. 17.6+/-5.2, P<0.001;
BPD CGI-S: 4.6+/-0.8 vs. 3.4+/-0.8, P<0.0005, respectively) as well as in
aggressive behavior (Aggression CGI-S: 3.5+/-1.3 vs. 1.8+/-0.5, P<0.001).
MPH was well tolerated. MPH may be useful and well tolerated in treating some
shared symptoms of ADHD and BPD among female adolescents. Controlled studies
are needed to substantiate these findings.
2. Approved and investigational uses of modafinil : an evidence-based
review.
Drugs. 2008;68(13):1803-39.
Kumar R.
Department of Family Medicine, University of Chicago, Chicago, Illinois, USA.
Modafinil is a wake-promoting agent that is pharmacologically different from
other stimulants. It has been investigated in healthy volunteers, and in individuals
with clinical disorders associated with excessive sleepiness, fatigue, impaired
cognition and other symptoms. This review examines the use of modafinil in clinical
practice based on the results of randomized, double-blind, placebo-controlled
clinical trials available in the English language in the MEDLINE database. In
sleep-deprived individuals, modafinil improves mood, fatigue, sleepiness and
cognition to a similar extent as caffeine but has a longer duration of action.
Evidence for improved cognition in non-sleep-deprived healthy volunteers is
controversial.Modafinil improves excessive sleepiness and illness severity in
all three disorders for which it has been approved by the US FDA, i.e. narcolepsy,
shift-work sleep disorder and obstructive sleep apnoea with residual excessive
sleepiness despite optimal use of continuous positive airway pressure (CPAP).
However, its effects on safety on the job and on morbidities associated with
these disorders have not been ascertained. Continued use of CPAP in obstructive
sleep apnoea is essential. Modafinil does not benefit cataplexy.In very small,
short-term trials, modafinil improved excessive sleepiness in patients with
myotonic dystrophy. It was efficacious in fairly large studies of attention
deficit hyperactivity disorder (ADHD) in children and adolescents, and was as
efficacious as methylphenidate in a small trial, but has not been approved by
the FDA, in part because of its serious dermatological toxicity. In a trial
of 21 non-concurrent subjects, with 2-week treatment periods, modafinil was
as effective as dexamfetamine in adult ADHD. Modafinil was helpful for depressive
symptoms in bipolar disorder in a trial that excluded patients with stimulant-induced
mania. A single dose of modafinil may hasten recovery from general anaesthesia
after day surgery. A single dose of modafinil improved the ability of emergency
room physicians to attend didactic lectures after a night shift, but did not
improve their ability to drive home and caused sleep disturbances subsequently.
Modafinil had a substantial placebo effect on outcomes such as fatigue, excessive
sleepiness and depression in patients with traumatic brain injury, major depressive
disorder, schizophrenia, post-polio fatigue and multiple sclerosis; however,
it did not provide any benefit greater than placebo.Trials of modafinil for
excessive sleepiness in Parkinson's disease, cocaine addiction and cognition
in chronic fatigue syndrome provided inconsistent results; all studies had extremely
small sample sizes. Modafinil cannot be recommended for these conditions until
definitive data become available.Modafinil induces and inhibits several cytochrome
P450 isoenzymes and has the potential for interacting with drugs from all classes.
The modafinil dose should be reduced in the elderly and in patients with hepatic
disease. Caution is needed in patients with severe renal insufficiency because
of substantial increases in levels of modafinil acid. Common adverse events
with modafinil include insomnia, headache, nausea, nervousness and hypertension.
Decreased appetite, weight loss and serious dermatological have been reported
with greater frequency in children and adolescents, probably due to the higher
doses (based on bodyweight) used. Modafinil may have some abuse/addictive potential
although no cases have been reported to date.
3. Disadvantaged Low-Birth-Weight Children More Likely to Have Attention
Problems
Arch Gen Psychiatry 2008;65:1080-1086.
Marlene Busko
In a longitudinal study, low–birth-weight children had modestly increased
levels of psychiatric problems such as aggression or anxiety throughout childhood.
However, those living in a disadvantaged inner-city community had a 3-fold higher
risk for impulsivity and hyperactivity symptoms characteristic of attention-deficit/hyperactivity
disorder (ADHD) compared with those living in a middle-class suburb.
"The differential effect of low birth weight on attention in urban children
was unexpected, given that low–birth-weight effects for other outcomes
such as cognitive abilities were uniform across the 2 communities," coauthor
Naomi Breslau, PhD, from Michigan State University, in East Lansing, told Medscape
Psychiatry.
"The results suggest a need for early identification of children with attention
problems — even before the start of school — and a need to evaluate
interventions to improve attention skills, since these contribute to children’s
acquisition of academic skills and educational attainment — that is, whether
they complete high school, enroll in college, and graduate," she added.
The study, with lead author Kipling M. Bohnert, also from Michigan State University,
is published in the September issue of the Archives of General Psychiatry.
Improved Survival of Tiny Infants
Advances in neonatal medicine have increased the survival of low–birth-weight
infants (2500 g or less), including very low–birth-weight infants (1500
g or less) and extremely low–birth-weight infants (1000 g or less), the
authors write.
Previous studies have reported that these children have an increased risk for
internalizing problems such as somatic complaints, anxiety, and depression;
externalizing problems such as delinquent and aggressive behavior; and attention
problems characteristic of ADHD.
The present study was based on data from low–birth-weight and normal-weight
children born from 1983 through 1985 in 2 major hospitals in Detroit, Michigan.
The children in the urban sample were primarily black and were more likely to
have single mothers with less than a high school education.
When the children were age 6 years (n = 823) and age 11 years (n = 717), their
behavior was evaluated by mothers using the Child Behavior Checklist and by
teachers using the Teachers’ Report Form to determine the percentages
of children with scores in the borderline or clinical assessment range.
The current study extended the previous studies to age 17 years and included
218 low–birth-weight urban children, 140 normal–birth-weight urban
children, 181 low–birth-weight suburban children, and 159 normal–birth-weight
suburban children.
Attention Problems Are a "Major Concern"
Among these 17-year-olds, the adjusted odds ratios (ORs) for having externalizing
and internalizing problems were slightly higher in the low–birth-weight
teens than in the normal-weight teens living in the same community (adjusted
OR, 1.53 and 1.28 for externalizing and internalizing problems, respectively).
Among the teens living in the disadvantaged urban community, those with a low
birth weight had an approximately 3-fold greater risk of having attention problems
(adjusted OR, 2.78; 95% CI, 1.77 – 4.37; P = .001). The increased risk
was greatest among teens whose birth weight was 1500 g or less.
In contrast, the teens living in the middle-class suburbs had no significant
increased risk for attention problems associated with low birth weight.
The increased risk of having attention problems corresponding to those of ADHD
that was seen in the disadvantaged, urban, low–birth-weight children raises
a "major concern," since attention problems at the start of school
predict lower academic achievement later on, the authors write.
These differences in low–birth-weight children living in advantaged vs
disadvantaged communities "might reflect a beneficial influence of the
enriched social environment afforded to children in suburban middle-class communities
at home, at school, and in the neighborhood, [or] the urban disadvantaged environment
might exacerbate the effect of prenatal adversity," they suggest.
4. Adults with ADHD Don't Reach Educational, Occupational Potentials
J Clin Psychiatry 2008; 69:1217-1222.
The results of a study published in the August issue of the Journal of Clinical
Psychiatry suggest an association between attention-deficit/hyperactivity disorder
and decreased educational and occupational attainment relative to what would
be expected based on intellect.
"ADHD has been consistently associated with intellectual, educational,
and employment deficits," lead author Dr. Joseph Biederman, of Massachusetts
General Hospital, Boston, and colleagues write. To further examine the impact
of these deficits, the research team conducted a case-control study from 1998
to 2003 that included 224 adults with ADHD.
The investigators used the Hollingshead socioeconomic status scale to assess
educational and occupational status. Ordered logistic regression models were
used to compute the expected educational and occupational levels of the subjects
as a function of age, gender, and full-scale IQ.
The researchers found that subjects with ADHD attained significantly less education
than predicted based on their IQ. In addition, based on their education level,
ADHD patients were predicted to have significantly higher occupational levels
than actually attained.
"Educational and occupational deficits in adults with ADHD are a consequence
of ADHD and not IQ, and therefore represent under-attainments in these critical
areas," Dr. Biederman said in an interview with Reuters Health. "Considering
the critical importance of education and occupation for the individual in our
society, these findings strongly support the importance of diagnosing and treating
ADHD to avert these serious consequences."
Dr. Biederman and his colleagues plan to "continue evaluating various aspects
of these deficits in the hope of developing appropriate preventive and early
intervention strategies."
5. Special issues in the diagnosis and treatment of ADHD in adolescents.
Steinhoff KW.
Department of Pediatrics, University of California, Irvine School of Medicine,
Irvine, CA.
Postgrad Med. 2008 Sep;120(3):60-8.
Attention-deficit/hyperactivity disorder (ADHD) is a common disorder among adolescents
but can be a challenge to diagnose in this population for several reasons. Obvious
symptoms of hyperactivity and impulsivity are displayed less frequently than
in younger children. Direct observation by potential raters is more limited
because adolescents spend less time with parents and usually have multiple teachers
throughout the day. Also, adolescents often suffer from psychiatric comorbidities,
which affect the presentation of ADHD and can confound the diagnosis. Similarly,
impaired social skills and academic performance may result from this disorder
or for other reasons. These difficulties underscore the importance of a careful
and comprehensive assessment that includes parent-, teacher-, and self-reported
measures of functioning in several environments, including school, home, and
work.
Because ADHD is chronic and usually impairing in several domains (eg, social
skills, academic performance, family relations, emotional health, driving),
adequate treatment is essential. However, there are relatively few treatment
studies in adolescents. Stimulant agents are well established as first-line
medication treatment for both school-aged children and adults. Existing data
support that this is also the case with adolescents. Specifically, both an extended-release
formulation of methylphenidate, osmotic-release oral system (OROS(R) MPH; CONCERTA(R))
and a mixed amphetamine salts extended-release (MAS XR; Adderall(R) XR) have
demonstrated efficacy and safety in reducing the core symptoms of ADHD in well-designed,
multisite, placebo-controlled, double-blind trials. Additional research is needed
to further refine diagnostic and assessment tools in the adolescent population.
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