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Table of Contents

    Topic review

    Children with Bipolar Disorder

    Subjects: Others
    View times: 12
    Submitted by: Robert Post

    Definition

    Childhood onset bipolar disorder (CO-BD) presents a panoply of difficulties associated with early recognition and treatment. CO-BD is associated with a variety of precursors and comorbidities that have been inadequately studied, so treatment remains obscure. The earlier the onset, the longer is the delay to first treatment, and both early onset and treatment delay are associated with more depressive episodes and a poor prognosis in adulthood.

    1. Introduction

    Other data indicate a similar percentage of bipolar I children in other countries, but if those with BP-NOS are considered, the incidence may be considerably higher, perhaps around 5%. Childhood onsets of bipolar disorders are more common in the US than in many European countries with one quarter of onsets in adults with bipolar disorder occurring before age 13 and two thirds before age 19 [1][2][3][4] Multiple factors account for this; among the most prominent are an increased incidence of a positive family history of mood disorders and substance abuse disorders in patients’ parents and grandparents [5][6][7] and an increased incidence of multiple psychosocial adversities (different types of abuse) in childhood [8]. There are additive effects on earlier age on onset when there is the combined presence of both a high loading of family history and incidence of childhood adversity [6].

    2. Early Recognition and Treatment

    Early recognition and treatment are critical as childhood onset illness as compared to adult onset is associated with a problematic course of increased substance abuse, suicide, and episodes of mood disorder in adulthood [6][7]. Lack of aggressive comprehensive treatment is associated with increase in risk not only of relapses [8] and social and educational dysfunction, but also of cognitive dysfunction if further episodes occur in the year after a first mania [9][10]. Attempts to enhance cognitive reserve deserve further study and consideration.

    However, the ideal treatment of childhood onset bipolar disorder is compromised by a lack of systematic clinical trials, and current guidelines that are largely based on expert opinion. Children are being treated with a high incidence of atypical antipsychotics, but lesser degrees of lithium and mood stabilizing anticonvulsants, such as valproate, lamotrigine, or carbamazepine. Yet naturalistic follow up studies suggest that those treated with lithium have better long-term outcomes and more euthymic days [11] or fewer days of feeling depressed and less suicidality [12] than other treatment and mood stabilizer approaches.

    Lithium has positive controlled data for treatment of acute mania [13] and prevention [14]. [15] reported that one year of randomized treatment with lithium was superior to that of quetiapine on measures of mania, depression, functioning, cognition, and brain imaging. In adults, lithium helps prevent cognitive deterioration in patients with mild cognitive impairment and it reduces the incidence of a diagnosis of dementia in old age This and other diverse mechanisms could account for the data suggesting that lithium could help prevent a variety of medical illnesses including cancer [16].

    Lithium appears most effective in those with a positive family history of mood disorders and especially if there is a positive family history of response to lithium. In addition, those with classic presentations of euphoric mania, clear well-intervals between episodes, a lack of anxiety or substance abuse comorbidity, and non-rapid cycling are more likely to respond [17]. Initiating lithium treatment early in the course of illness is also more productive than latter treatment after multiple episodes or rapid cycling has occurred [18][19][20]. Lithium is FDA- and EMA-approved for children over 12 years of age.

    While some atypical antipsychotics are FDA-approved for preventing mania and total episodes, some, such as aripiprazole, have not shown significant efficacy in preventing depressions. Ziprasidone is effective in mania, but it failed in depression in adults. Olanzapine has efficacy in mania and depression, but issues of weight gain and metabolic tolerability make it a third line option [21]. Those with a parental history of non-response to lithium maybe more likely to respond to atypicals [22].

    Lurasidone has efficacy in bipolar depression in children aged 10–17 years as well as in adults, but long-term preventive data are mixed [23]. It is of interest that in studies of bipolar depression in both children and adults, lurasidone was more effective and had a bigger effect size in those with baseline elevations in the inflammatory marker C-reactive protein (CRP) [24][25].

    As opposed to robust data in adults with mania, data on valproate and carbamazepine in mania in children are more mixed and equivocal. Valproate is widely used in mania in children, although several placebo-controlled trials failed to show efficacy in acute mania. Oxcarbazepine (OXC) was not effective in the whole group of children with bipolar disorder, while the youngest compared to the oldest did significantly better on OXC than placebo [26]. Data showed the opposite pattern on lamotrigine where older patients fared better than younger children [27].

    Considerable evidence indicates that a positive family history of mood disorders is a predictor of response to lithium [17]. Conversely, those without a family history of bipolar disorder are more likely to respond to carbamazepine (along with characteristics that are the mirror image of lithium non-response, such as more continuous cycling and the presence of anxiety and substance abuse comorbidity, and the presence of mood incongruent delusions). Interestingly, those with a personal or family history of anxiety disorders are more likely to respond to lamotrigine [28].

    [29] reported that children stabilized on the combination of lithium and valproate relapsed at a very high rate when they were randomized to either monotherapy. They then rapidly re-responded when combination therapy was re-instituted indicating the need for combination therapy in the majority of children with bipolar disorder. [30] came to the same conclusion in her randomized study of lithium, valproate, and risperidone, in that most patients required a combination of the atypical with lithium or valproate (and often with adjunctive stimulants) to achieve adequate mood stabilization. [31] also concluded that combinations were ultimately needed in his randomized study of lithium, valproate, and carbamazepine in acute mania.

    Given the high incidence of comorbid ADHD and bipolar disorder in children, most investigators recommend first achieving mood stabilization prior to the use of stimulants for residual symptoms of ADHD. Adding a stimulant in this fashion is not associated with exacerbation of the bipolar disorder [32]. First treating these comorbid patients with high dose stimulants or antidepressants prior to mood stabilization risks a high incidence of non-response or a worsening of symptoms [33].

    Some drugs that are not effective antimanic agents, such as gabapentin, still have evidence of effectiveness in other syndromes and comorbidities, including alcohol use disorder (AUD), avoidance and anxiety disorders, and anxiety attacks, such as topiramate and zonisamide in AUD and bulimia [34]. Two supplements available without prescription have a wide range of potential benefits in bipolar disorder as listed in Table 1. For example, N-acetylcysteine (NAC) has placebo-controlled data for effectiveness in depression and anxiety in adult bipolar patients, as well as the ability to limit multiple drugs of abuse and habits such as gambling, OCD, and trichotillomania [34][35][36]. There are three positive placebo-controlled trials of NAC for irritability in autism in children 4–17 years of age so that safety in children has been demonstrated.

    Table 1. Potential utility of supplements and drugs in the treatment of comorbidities of bipolar disorder. Note that all are off label in bipolar disorder except valproate *.

    N-Acetylcysteine (NAC) Acetyl-L-Carnitine (ACL) Valproate (VPA) Topiramate Zonisamide Gabapentin Modafinil
    Cocaine Pain Migraine Alcohol Alcohol Anxiety Cocaine
    Alcohol Insulin-receptor sub-sensitivity Anxiety Cocaine Bulimia Social phobia Narcolepsy
    Nicotine Peripheral neuropathy Alcohol Bulimia   Alcohol ADHD
    Marijuana Hypertension   Migraine   Pain  
    Gambling     Anger attacks      
    OCD            
    PTSD            
    Trichotillomania            
    Depression            
    Autism            
    * References cited in [34].

    Acetyl-L-carnitine (LAC) has been reported low in the blood of adult depressed patients, especially those with early onset, more severe and treatment refractory depression, and in those with histories of abuse in childhood [37]. It has antidepressant effects in patients and in animal models of depression, but effectiveness has not yet been demonstrated in children. However, the possibility of normalizing LAC blood levels in depressed patients with a history of adversity in childhood suggests the importance of studying this subgroup as patients with bipolar disorder have such a high incidence of histories of abuse in childhood which in turn is associated with relative treatment refractoriness. LAC also has anti-pain effects, sensitizes insulin receptors, and improves peripheral neuropathy [37][38].

    Other agents not listed in Table 1 also deserve consideration even though the data on effectiveness in children is not solid [34][39]. For example, there is a very high incidence of borderline or low levels of vitamin D3 in children with major psychiatric illness, so supplementation with this safe vitamin would appear worthy of consideration. Similarly folic acid has been reported to enhance the effectiveness of lithium and many antidepressants, and for those with a methylenetetrahydrofolate reductase (MTHFR) deficiency, supplementation with L-methylfolate is a necessity.

    This and other suggestions for addressing some of the complexities of bipolar disorder are acknowledged to be inadequately supported in the literature sufficiently to merit routines use [39]. However, given the paucity of systematic studies in children and the wide range of impairing symptoms and syndromes seen in the illness [40][41], some consideration of using these agents on the basis of careful evaluation of their potential risk: benefit ratio may be a rational approach. The potential role of the calcium channel blocker nimodipine also deserves further evaluation and consideration [17][42][43].

    3. Psychotherapy: The Case for Systematic Employment of Family Focused Therapy and Similar Therapies

    While optimal pharmacological approaches to childhood onset bipolar disorder remain n controversial, there is much consensus about the importance of psycho-social therapies.

    the benefit of family focused therapy (FFT) and related group therapies [44]. [45] also found that FFT was effective for those with prodromal symptoms including bipolar disorder not otherwise specified (BP-NOS) for producing stabilization in depression, reducing recurrence risk, and increasing psychosocial functioning, each with moderate to large effect sizes. [46] endorsed family focus cognitive behavioral therapy, and Fristad et al. [47] also found multifamily psychoeducational therapy highly effective.

    In addition, a recent report indicates that cognitive behavioral therapy (CBT) can be modified for transdiagnostic use in children and is more effective that treatment as usual [48]. Together these data provide strong evidence for the utility of FFT and other family interventions, and CBT for those with early symptoms, prodromes, and more full-blown bipolar disorder. Given the efficacy and safety of these psychosocial approaches and the utility of psycho-educational efforts, it would appear imperative that these types of therapies be utilized adjunctively in the routine treatment of early affective disorders in children.

    4. The Need of Psychological and Pharmacological Attempts to Head of Early Illness in Those at Highest Risk

    Given the high risks for the onset of diverse childhood psychiatric diagnoses in children of a parent with bipolar disorder [3], attempting a primary prevention would appear indicated. Endorsing attempts to achieve a good diet, regular exercise, sports participation and sleep habits, and mindfulness/meditation have not only been proven to be effective, but their safety, practicality, and theoretical rationale make them highly recommended [36]. As noted above, family therapy and CBT have considerable support in systematic studies.

    A variety of safe pharmacological interventions may have merit in primary and/or secondary prevention even if not fully validated by systematic studies [39]. Along with safety, the non-specificity of potential effectiveness across multiple symptoms and syndromes makes their early utilization in children worthy of consideration. These could include omega-3-fatty acids, N-acetylcysteine, minocycline, and other anti-inflammatory drugs (especially in the presence of positive markers of inflammation), deserving further study and perhaps individual clinical trials. In those with a history of adversity in childhood, one might even consider a clinical trial with acetyl-L-carnitine (LAC) since levels of LAC in the blood of adult depressed patients are especially low in those with a history of childhood adversity [37][38].

    The entry is from 10.3390/medicina57060601

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