Search

This case comparison illustrates pharmacogenetic testing in psychotropic and clinical management in relation to the ABCB1 gene, which encodes the P-glycoprotein transporter affecting blood–brain barrier (BBB) permeability. Two pediatric patients (9 and 11 years old) were selected for similar clinical presentations with opposing ABCB1 genotype, while they were identically matched for key CYP450, dopaminergic and serotonergic genes ( CYP2C9, CYP2C19, DRD2, SLC6A4, 5HTR2A). Case A was functional for the ABCB1 gene ( G/G rs1045642), suggesting that the BBB had a functional P-glycoprotein transporter. Case B was subfunctional for the ABCB1 gene ( A/A rs1045642), suggesting that the patient's BBB may be permeable to psychotropic drugs. Case A had more medication trials and dose adjustments than Case B. Case A had two inpatient admissions and interspersed emergency room visits, while case B had none.

This article provides an overview of attachment and its impact on the developmental psychopathology in children and adolescents. Attachment plays a crucial role in providing the foundation for healthy acquisition of social, cognitive, and emotional development starting in early childhood. In this article, we also provide a brief overview of psychopathology from an attachment perspective. Secure attachments confer protective factors that can lead to stable, fulfilling relationships. In contrast, insecure attachments can lead to risk for a wide variety of pathogenic states and psychiatric disorders. Attachment can be conceptualized within a vulnerability model, rather than as a direct cause of psychopathology. Given that attachment is an essential building block of healthy development, clinicians treating children and adolescents should adopt an attachment-informed framework in understanding child and adolescent psychopathology, both in terms of protective factors and risk factors. This article will allow the clinician to more accurately formulate the basis of a child's mental health disturbance and define adequate treatment strategies. [ Psychiatr Ann . 2021;51(7):300–315.]

AACAP's recent policy statement on Clinical Use of Pharmacogenetic Tests in Prescribing Psychotropic Medications for Children and Adolescents1 recommends that "clinicians avoid using pharmacogenetic testing to select psychotropic medications in children and adolescents." We agree that there are limitations to the nascent evidence base for using pharmacogenetics, especially in combinatorial form (eg, test results that bin medications based on multiple genes). However, all-or-nothing recommendations fail to recognize the nuance and context of this testing and contrast with the AACAP Facts for Families on pharmacogenetic testing. Moreover, pharmacogenetic testing may inform dosing for antidepressants that are commonly used in child and adolescent psychiatry (eg, sertraline, escitalopram, citalopram, fluvoxamine) as well as the tolerability of some psychotropic medications. With this in mind, we wish to remind the AACAP community of the accumulating evidence and to highlight important principles of pharmacogenetic testing in youths. Specifically: 1) pharmacogenetic testing is not always performed by commercial companies and is not always combinatorial; 2) dosing recommendations or assessment of risk for severe hypersensitivity reactions are based on pharmacogenetics in the Food and Drug Administration (FDA)-approved product inserts for several medications commonly prescribed to children (eg, citalopram, aripiprazole, atomoxetine, carbamazepine, oxcarbazepine at www.fda.gov/drugs/science-and-research-drugs/table-pharmacogenomic-biomarkers-drug-labeling); 3) expert consensus guidelines for dosing or identifying hypersensitivity risk for these drugs are available from the National Institutes of Health (NIH)-supported Clinical Pharmacogenetics Implementation Consortium (CPIC, www.cpicpgx.org/), which provides transparent, regularly updated, and evidence-based evaluations of pharmacogenetic data;2 and 4) randomized trials are not required for clinical dose adjustments; for example, dose adjustments because of decreased hepatic function or concomitant interacting medications are based on pharmacokinetic data, similar to many pharmacokinetic gene-based recommendations from CPIC.

Pediatric delirium is an important comorbidity of medical illness in inpatient pediatric care that has lacked a consistent approach for detection and management. A clinical pathway (CP) was developed to address this need. Pediatric delirium contributes significantly to morbidity, mortality, and costs of inpatient care of medically ill children and adolescents. Screening for delirium in hospital settings with validated tools is feasible and effective in reducing delirium and improving outcomes; however, multidisciplinary coordination is required for implementation. The workgroup, composed of international experts in child and adolescent consultation psychiatry, reviewed the literature and developed a flowchart for feasible screening and management of pediatric delirium. When evidence was lacking, expert consensus was reached; stakeholder feedback was included to create the final pathway. A CP expert collaborated with the workgroup. Two sequential CPs were created: (1) “Prevention and Identification of Pediatric Delirium” emphasizes the need for systematic preventive measures and screening, and (2) “Diagnosis and Management of Pediatric Delirium” recommends an urgent and ongoing search for the underlying causes to reverse the syndrome while providing symptomatic management focused on comfort and safety. Detailed accompanying documents explain the supporting literature and the rationale for recommendations and provide resources such as screening tools and implementation guides. Additionally, the role of the child and adolescent consultation-liaison psychiatrist as a resource for collaborative care of patients with delirium is discussed.

This paper aims to acquaint child and adolescent psychiatrists with the field of pharmacogenomics (PGX) and review the most up-to-date evidence-based practices to guide the application of this field in clinical care. Despite much research being done in this area, the field of PGX continues to yield controversial findings. In the adult world, studies have focused on the impact of combinatorial gene panels that guide medication selection by providing reports that estimate the impact of multiple pharmacodynamic and pharmacokinetic genes, but to date, these have not been directly examined in younger patient populations. Pharmacokinetic genes, CYP2D6 and CYP2C19, and hypersensitivity genes, HLA-A and HLA-B, have the strongest evidence base for application to pharmacotherapy in children. Although the field is evolving, and the evidence is mixed, there may be a role for PGX testing in children to help guide dosing and monitoring strategies. However, evidence-based medicine, rather than PGX testing, continues to play the lead role in guiding medication selection in pediatric psychopharmacology.

Somatic symptom and related disorders (SSRDs) are commonly encountered in pediatric hospital settings. There is, however, a lack of standardization of care across institutions for youth with these disorders. These patients are diagnostically and psychosocially complex, posing significant challenges for medical and behavioral health care providers. SSRDs are associated with significant health care use, cost to families and hospitals, and risk for iatrogenic interventions and missed diagnoses. With sponsorship from the American Academy of Child and Adolescent Psychiatry and input from multidisciplinary stakeholders, we describe the first attempt to develop a clinical pathway and standardize the care of patients with SSRDs in pediatric hospital settings by a working group of pediatric consultation-liaison psychiatrists from multiple institutions across North America. The authors of the SSRD clinical pathway outline 5 key steps from admission to discharge and include practical, evidence-informed approaches to the assessment and management of children and adolescents who are medically hospitalized with SSRDs.

Pediatric neurologists frequently encounter patients who present with significant musculoskeletal pain that cannot be attributed to a specific injury or illness, which can often be defined as pain amplification syndrome (PAS). PAS in children and adolescents is the result of a heightened pain sensitivity pathway, which is intensified by significant biological, psychological, and social contributors. Appropriate assessment and multimodal intervention of PAS are crucial to treatment success, including neurology and behavioral health collaborative treatment plans to restore patient function and reduce pain perception. Pediatric neurologists are imperative in the identification of patients with PAS, providing the family assurance in diagnosis and validation of pain, and directing patients to the appropriate multidisciplinary treatment pathway.

Pharmacogenomics, the study of genetic differences in genes involved with both medication metabolism and medication targets, especially those in the brain, is a new and exciting field of patient care for child and adolescent psychiatry. However, as the field continues to explore the application of pharmacogenomics, knowledge of how to apply its results in terms of its potential benefits and risks remains of primary importance. Moreover, ordering individual relevant genes, depending on the illness being treated and the medication being selected, rather than using preselected gene panels, may be more efficacious, relevant, and cost-effective.

This article summarizes clinical guidelines and reviews psychopharmacologic studies involving children and adolescents with Pervasive Developmental Disorders (PDDs). Strategies are drawn from basic principles of pediatric psychopharmacology, nonpharmacological approaches to the treatment of PDDs, and practical clinical experience in an attempt to provide the practitioner with an evidence-based approach to utilizing pharmacotherapy in children and adolescents with PDDs. Although early identification followed by intensive educational and behavioral interventions remains the essential treatment of PDDs, there is evidence to support the identification of target behaviors or symptom domains, for medication. Evidence-based medicine (EBM) is then used to guide pharmacotherapy with the overall goal of optimizing the benefits of multidisciplinary treatment interventions.

This study assessed the effectiveness and tolerability of the selective serotonin reuptake inhibitor citalopram in the treatment of patients with pervasive developmental disorders (PDDs). The medical charts of 15 children and adolescents (aged 6-16 yr) with Asperger syndrome, autism, or PDD not otherwise specified treated with citalopram were retrospectively reviewed. The final dose of citalopram was 16.9 +/- 12.1 mg/day with a treatment duration of 218.8 +/- 167.2 days. Independent ratings of the Clinical Global Impression (CGI) Severity and Improvement scales allowed comparison between baseline and PDD symptoms at the last visit. Eleven adolescents (73%) exhibited significant improvement in PDD, anxiety, or mood CGI score (z = 2.95; p =.003). Anxiety symptoms associated with PDDs improved significantly in 66% of patients (z = 2.83, p =.005), and mood symptoms improved significantly in 47% of patients (z = 2.78, p =.005). Mild side effects were reported by five patients (33%). These data suggest citalopram may be effective, safe, and well tolerated as part of the treatment of PDDs.