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Chronis AM, Chacko A, Fabiano GA, Wymbs BT, Pelham WE. Enhancements to the behavioral parent training paradigm for families of children with ADHD: review and future directions. Clin Child Fam Psychol Rev 2004; 7:1-27. [PMID: 15119686 DOI: 10.1023/b:ccfp.0000020190.60808.a4] [Citation(s) in RCA: 200] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Behavioral parent training (BPT) is one of the empirically supported psychosocial treatments for ADHD. Over many years and in many studies, BPT has been documented to improve both child ADHD behavior and maladaptive parenting behavior. In some studies, BPT has also been found to result in benefits in additional domains, such as parenting stress and child classroom behavior. However, the BPT literature on children selected as having ADHD lags behind research conducted on BPT for children selected as having oppositional defiant and conduct disorders (ODD and CD, respectively) with regard to examination of factors that may limit treatment attainment, compliance, and outcomes, such as single parenthood, parental psychopathology, and child comorbidity. Because of the high degree of comorbidity between ADHD and ODD/CD, it is difficult to separate the two BPT literatures. The parameters of BPT (e.g.. format and setting), parent factors, and child factors that may contribute to treatment outcomes for families of children with ADHD are reviewed here and recommendations for future BPT research in the area of ADHD are made.
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Review |
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200 |
2
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Chacko A, Bedard AC, Marks DJ, Feirsen N, Uderman JZ, Chimiklis A, Rajwan E, Cornwell M, Anderson L, Zwilling A, Ramon M. A randomized clinical trial of Cogmed Working Memory Training in school-age children with ADHD: a replication in a diverse sample using a control condition. J Child Psychol Psychiatry 2014; 55:247-55. [PMID: 24117656 PMCID: PMC3944087 DOI: 10.1111/jcpp.12146] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/08/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Cogmed Working Memory Training (CWMT) has received considerable attention as a promising intervention for the treatment of Attention-Deficit/Hyperactivity Disorder (ADHD) in children. At the same time, methodological weaknesses in previous clinical trials call into question reported efficacy of CWMT. In particular, lack of equivalence in key aspects of CWMT (i.e., contingent reinforcement, time-on-task with computer training, parent-child interactions, supportive coaching) between CWMT and placebo versions of CWMT used in previous trials may account for the beneficial outcomes favoring CWMT. METHODS Eighty-five 7- to 11-year old school-age children with ADHD (66 male; 78%) were randomized to either standard CWMT (CWMT Active) or a well-controlled CWMT placebo condition (CWMT Placebo) and evaluated before and 3 weeks after treatment. Dependent measures included parent and teacher ratings of ADHD symptoms; objective measures of attention, activity level, and impulsivity; and psychometric indices of working memory and academic achievement (Clinical trial title: Combined cognitive remediation and behavioral intervention for the treatment of Attention-Deficit/Hyperactivity Disorder; http://clinicaltrials.gov/ct2/show/NCT01137318). RESULTS CWMT Active participants demonstrated significantly greater improvements in verbal and nonverbal working memory storage, but evidenced no discernible gains in working memory storage plus processing/manipulation. In addition, no treatment group differences were observed for any other outcome measures. CONCLUSIONS When a more rigorous comparison condition is utilized, CWMT demonstrates effects on certain aspects of working memory in children with ADHD; however, CWMT does not appear to foster treatment generalization to other domains of functioning. As such, CWMT should not be considered a viable treatment for children with ADHD.
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Randomized Controlled Trial |
11 |
145 |
3
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Shah S, Thomas V, Mathan M, Chacko A, Chandy G, Ramakrishna BS, Rolston DD. Colonoscopic study of 50 patients with colonic tuberculosis. Gut 1992; 33:347-51. [PMID: 1568653 PMCID: PMC1373825 DOI: 10.1136/gut.33.3.347] [Citation(s) in RCA: 130] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fifty patients with colonic tuberculosis are reported in whom a colonoscopic diagnosis confirmed by histological examination was possible in 40. Bacteriological studies did not increase the diagnostic yield. Abdominal pain was the most common symptom (90%) and an abdominal mass the most common abnormal physical finding (58%). A nodular mucosa with areas of ulceration was the usual colonoscopic finding. Ileocaecal disease was found in 16, ileocaecal and contiguous ascending colon disease in 14, segmental colonic tuberculosis in 13, ileocaecal disease and non-confluent involvement of another part of the colon in five, and pancolitis in two patients. This report emphasises that colonoscopy is a useful procedure for diagnosing colonic tuberculosis and that segmental colonic tuberculosis is not uncommon.
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research-article |
33 |
130 |
4
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Abstract
Bortezomib (Velcade, PS341) was licensed in 2003 as a first-in-class 20S proteasome inhibitor indicated for treatment of multiple myeloma, and is currently being evaluated clinically in a range of solid tumours. The mechanisms underlying its cancer cell toxicity are complex. A growing body of evidence suggests proteasome inhibition-dependent regulation of the BCL-2 family is a critical requirement. In particular, the stabilization of BH3-only proteins BIK, NOXA and BIM, appear to be essential for effecting BAX- and BAK-dependent cell death. These mechanisms are reviewed and the implications for favourable novel drug interactions are highlighted.
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Review |
18 |
124 |
5
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Chacko A, Cummings JH. Nitrogen losses from the human small bowel: obligatory losses and the effect of physical form of food. Gut 1988; 29:809-15. [PMID: 2838402 PMCID: PMC1433749 DOI: 10.1136/gut.29.6.809] [Citation(s) in RCA: 116] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The amount and form of nitrogen lost from the human small intestine and the dietary factors which influence it have been studied in six ileostomists. Over a six day period the subjects were fed a series of diets including low nitrogen (LND) 0.17 g N/day, LND + soya beans (5.87 g N/day) and a high fibre diet (HFD) (10.6 g N/day). The soya beans were fed either whole or pureed to test the effect of physical form of food. Total N, protein, amino acids, urea, and ammonia were measured in ileostomy effluent which was collected throughout the study. Total N excretion was LND 0.91 (0.04) (SE) g/day; LND + whole soya beans (WSB) 2.26 (0.15) g/day; LND + pureed soya beans (PSB) 1.42 (0.12) g/day (WSB v PSB, p less than 0.001); and HFD 2.17 (0.11) g/day (HFD v PSB, p less than 0.001, HFD v WSB, NS). N losses as urea, ammonia, and free amino acids were less than 10-15% of total N, the remainder being protein (48-51%) and (by difference) peptides (20-30%). Eighty to 85% of effluent N was in the insoluble (pellet) fraction except on the low N diet where it was 66%. The physical form of food clearly influenced N digestibility in the soya beans whilst changes in dietary fibre seem not to have a significant effect.
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research-article |
37 |
116 |
6
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Pelham WE, Burrows-Maclean L, Gnagy EM, Fabiano GA, Coles EK, Tresco KE, Chacko A, Wymbs BT, Wienke AL, Walker KS, Hoffman MT. Transdermal methylphenidate, behavioral, and combined treatment for children with ADHD. Exp Clin Psychopharmacol 2005; 13:111-26. [PMID: 15943544 DOI: 10.1037/1064-1297.13.2.111] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Stimulant medication and behavioral treatments are evidence-based for children with attention-deficit/hyperactivity disorder, but the combination of the 2 treatments has been understudied. In this investigation, methylphenidate (MPH) was crossed with 2 levels of behavior modification (BMOD) in a summer treatment program. Twenty-seven children with attention-deficit/hyperactivity disorder, aged 6-12, participated. Children received placebo and 3 doses of transdermal MPH (12.5 cm(2), 25.0 cm(2), and 37.5 cm(2)). BMOD was implemented on alternating weeks. Both treatments produced large and significant effects. Combined treatment was superior to either treatment alone. The effects of transdermal MPH were comparable to those found in this setting in previous studies with multiple stimulant medications and formulations. Consistent with other research, low doses of MPH--even lower than in previous studies--yielded enhanced effects in combination with behavior modification.
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Clinical Trial |
20 |
103 |
7
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Chacko A, Wymbs BT, Wymbs FA, Pelham WE, Swanger-Gagne MS, Girio E, Pirvics L, Herbst L, Guzzo J, Phillips C, O'Connor B. Enhancing Traditional Behavioral Parent Training for Single Mothers of Children with ADHD. JOURNAL OF CLINICAL CHILD AND ADOLESCENT PSYCHOLOGY 2009; 38:206-18. [DOI: 10.1080/15374410802698388] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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16 |
98 |
8
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Waxmonsky J, Pelham WE, Gnagy E, Cummings MR, O'Connor B, Majumdar A, Verley J, Hoffman MT, Massetti GA, Burrows-MacLean L, Fabiano GA, Waschbusch DA, Chacko A, Arnold FW, Walker KS, Garefino AC, Robb JA. The efficacy and tolerability of methylphenidate and behavior modification in children with attention-deficit/hyperactivity disorder and severe mood dysregulation. J Child Adolesc Psychopharmacol 2008; 18:573-88. [PMID: 19108662 PMCID: PMC2680095 DOI: 10.1089/cap.2008.065] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES This study examines the tolerability and efficacy of methylphenidate (MPH) and behavior modification therapy (BMOD) in children with attention-deficity/hyperactivity disorder (ADHD) and severe mood dysregulation (SMD). METHODS Children (ages 5-12) from a summer program for ADHD were screened for SMD and additional manic-like symptoms using structured assessments and direct clinical interview with the Young Mania Rating Scale (YMRS). The SMD group was comprised of 33 subjects with SMD and elevated YMRS scores (mean = 23.7). They underwent weekly mood assessments plus the daily ADHD measures that are part of the program. The comparison group (n = 68) was comprised of the rest of the program participants. Using a crossover design, all subjects in both groups were treated with three varying intensities of BMOD (no, low, high) each lasting 3 weeks, with MPH dose (placebo, 0.15 mg/kg t.i.d., 0.3mg/kg t.i.d., and 0.6 mg/kg t.i.d.) varying daily within each behavioral treatment. RESULTS Groups had comparable ADHD symptoms at baseline, with the SMD group manifesting more oppositional defiant disorder/conduct disorder (ODD/CD) symptoms (p < 0.001). Both groups showed robust improvement in externalizing symptoms (p < 0.001). There was no evidence of differential treatment efficacy or tolerability. Treatment produced a 34% reduction in YMRS ratings in SMD subjects (p - 0.001). However, they still exhibited elevated YMRS ratings, more ODD/CD symptoms (p < 0.001), and were more likely to remain significantly impaired at home than non-SMD subjects (p < 0.05). CONCLUSIONS MPH and BMOD are tolerable and effective treatments for children with ADHD and SMD, but additional treatments may be needed to optimize their functioning.
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research-article |
17 |
94 |
9
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Reicherz F, Xu RY, Abu-Raya B, Majdoubi A, Michalski C, Golding L, Stojic A, Vineta M, Granoski M, Cieslak Z, Chacko A, Desai N, Sekirov I, Marchant DJ, Lavoie PM. Waning Immunity Against Respiratory Syncytial Virus During the Coronavirus Disease 2019 Pandemic. J Infect Dis 2022; 226:2064-2068. [PMID: 35524952 PMCID: PMC9129162 DOI: 10.1093/infdis/jiac192] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/03/2022] [Accepted: 05/05/2022] [Indexed: 01/04/2023] Open
Abstract
Health jurisdictions have seen a near-disappearance of respiratory syncytial virus (RSV) during the first year of the coronavirus disease 2019 (COVID-19) pandemic. Over this corresponding period, we report a reduction in RSV antibody levels and live virus neutralization in sera from women of childbearing age and infants between May to June 2020 and February to June 2021, in British Columbia (BC), Canada. This supports that antibody immunity against RSV is relatively short-lived and that maintaining optimal antibody levels in infants requires repeated maternal viral exposure. Waning immunity may explain the interseasonal resurgence of RSV cases observed in BC and other countries.
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brief-report |
3 |
78 |
10
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Chacko A, Feirsen N, Bedard AC, Marks D, Uderman JZ, Chimiklis A. Cogmed Working Memory Training for youth with ADHD: a closer examination of efficacy utilizing evidence-based criteria. JOURNAL OF CLINICAL CHILD AND ADOLESCENT PSYCHOLOGY : THE OFFICIAL JOURNAL FOR THE SOCIETY OF CLINICAL CHILD AND ADOLESCENT PSYCHOLOGY, AMERICAN PSYCHOLOGICAL ASSOCIATION, DIVISION 53 2013; 42:769-83. [PMID: 23668397 PMCID: PMC3744604 DOI: 10.1080/15374416.2013.787622] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The current review applied the evidence-based treatment criteria espoused by the Society for Clinical Child and Adolescent Psychology (Silverman & Hinshaw, 2008 ) to specifically evaluate the short-term and longer term efficacy of Cogmed Working Memory Training (CWMT) as a treatment for youth with Attention-Deficit/Hyperactivity Disorder (ADHD). Utilizing a systematic literature search, 7 studies that employed the school-age version of CWMT were identified for this review. The data reviewed herein suggest mixed findings regarding the benefit of CWMT for youth with ADHD. Two randomized controlled studies have demonstrated that CWMT led to improvements in neuropsychological outcomes and parent-rated ADHD symptoms relative to wait-list control and placebo treatment conditions. Another study demonstrated effects of CWMT relative to a placebo condition on an analog observation of behavior during an academic task, although this study did not find an effect of CWMT on parent-rated ADHD. Finally, an additional study utilizing an active comparison control condition did not find incremental benefits of CWMT on parent- or teacher-rated ADHD. Critical issues in interpreting existing studies include lack of alignment between demonstrated outcomes and the hypothesized model of therapeutic benefit of CWMT, issues with equivalence of control conditions, and individual differences that may moderate treatment response. Collectively, the strengths and limitations of the studies reviewed suggest that CWMT is best defined as a Possibly Efficacious Treatment for youth with ADHD. We suggest future directions for research and conclude with clinical implications of our findings for the treatment of youth with ADHD.
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Research Support, N.I.H., Extramural |
12 |
73 |
11
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Halperin JM, Marks DJ, Bedard ACV, Chacko A, Curchack JT, Yoon CA, Healey DM. Training executive, attention, and motor skills: a proof-of-concept study in preschool children With ADHD. J Atten Disord 2013; 17:711-21. [PMID: 22392551 DOI: 10.1177/1087054711435681] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To examine whether cognitive enhancement can be delivered through play to preschoolers with ADHD and whether it would affect severity of ADHD symptoms. METHOD Twenty-nine 4- and 5-year-old children and their parents participated in separate group sessions (3-5 children/group). Child groups were introduced games designed to enhance inhibitory control, working memory, attention, visuospatial abilities, planning, and motor skills. Parent groups were encouraged playing these games with their children at least 30 to 45 min/day and taught strategies for scaffolding difficulty levels and dealing with obstacles to daily playing. RESULTS Parent ratings and session attendance indicated considerable satisfaction with the program. Parent (p < .001) and teacher (p = .003) ratings on the ADHD-Rating Scale-IV (ADHD-RS-IV) indicated significant improvement in ADHD severity from pre- to post-treatment, which persisted 3 months later. CONCLUSION This play-based intervention for preschoolers with ADHD is readily implemented at home. Preliminary evidence suggests efficacy beyond the termination of active treatment.
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Research Support, N.I.H., Extramural |
12 |
72 |
12
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Koul RL, Raj Aithala G, Chacko A, Joshi R, Seif Elbualy M. Continuous midazolam infusion as treatment of status epilepticus. Arch Dis Child 1997; 76:445-8. [PMID: 9196363 PMCID: PMC1717195 DOI: 10.1136/adc.76.5.445] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In a tertiary referral centre, midazolam infusion was tried as treatment for 20 children with status epilepticus over a period of two years. The mean age of the children was 4.07 years. Twelve children with refractory status epilepticus had received intravenous or per rectal diazepam and intravenous phenytoin/ phenobarbitone or both before midazolam was given (0.15 mg/kg bolus followed by 1-5 micrograms/kg/min infusion). Eight children required only midazolam to control the established status epilepticus. The seizures were controlled in 19 children. The mean time required for complete cessation of seizures was 0.9 hours. The mean infusion rate required was 2.0 micrograms/kg/min. All children had regained full consciousness by a mean of 5.1 hours after discontinuation of midazolam treatment. No metabolic derangement or compromise of vital functions was noted in any of the children. Midazolam infusion is thus an effective and safe therapeutic approach for the management of childhood status epilepticus.
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research-article |
28 |
59 |
13
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Fabiano GA, Schatz NK, Aloe AM, Chacko A, Chronis-Tuscano A. A systematic review of meta-analyses of psychosocial treatment for attention-deficit/hyperactivity disorder. Clin Child Fam Psychol Rev 2015; 18:77-97. [PMID: 25691358 PMCID: PMC4346344 DOI: 10.1007/s10567-015-0178-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The present report synthesizes outcomes across meta-analyses of psychosocial (i.e., non-pharmacological) treatments for ADHD. A total of 12 meta-analyses were identified that met search criteria. The meta-analyses were notable in that there was surprisingly little overlap in studies included across them (range of overlap was 2-46 %). Further, there was considerable diversity across the meta-analyses in terms of the inclusion/exclusion criteria, types of psychosocial treatments reviewed, methodological characteristics, and magnitude of reported effect sizes, making it difficult to aggregate findings across meta-analyses or to investigate moderators of outcome. Effect sizes varied across the outcomes assessed, with meta-analyses reporting positive and significant effect sizes for measures of some areas of child impairment (e.g., social impairment) and small and more variable effect sizes for distal and/or untargeted outcomes (e.g., academic achievement). Results are reviewed in light of the larger literature on psychosocial interventions for ADHD, and specific recommendations for future meta-analyses of psychosocial treatments for ADHD are offered.
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Meta-Analysis |
10 |
59 |
14
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McKay MM, Gopalan G, Franco L, Assael KD, Chacko A, Jackson J, Fuss A. A Collaboratively Designed Child Mental Health Service Model: Multiple Family Groups for Urban Children with Conduct Difficulties. RESEARCH ON SOCIAL WORK PRACTICE 2011; 21:664-674. [PMID: 22194642 PMCID: PMC3243310 DOI: 10.1177/1049731511406740] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
This paper presents preliminary outcomes associated with an experimental, longitudinal study of a Multiple Family Group (MFG) service delivery approach set within thirteen urban outpatient clinics serving children and their families living in inner-city, primarily African American and Latino communities. Specifically, this paper focuses on parent reports of child oppositional behavior and parenting stress over time. MFG is a flexible, protocol-driven approach designed to address the most common reason for referral to outpatient child mental health clinics, childhood behavioral difficulties. The MFG also aims to enhance family-level engagement and retention in ongoing care. Further, the service delivery model was collaboratively developed with intensive input from parents rearing children with conduct difficulties, parent advocates, community-based child mental health providers and services research staff in order to ultimately expand the number of effective service models that can be situated within "real world," urban child mental health settings.
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research-article |
14 |
58 |
15
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Fabiano GA, Chacko A, Pelham WE, Robb J, Walker KS, Wymbs F, Sastry AL, Flammer L, Keenan JK, Visweswaraiah H, Shulman S, Herbst L, Pirvics L. A comparison of behavioral parent training programs for fathers of children with attention-deficit/hyperactivity disorder. Behav Ther 2009; 40:190-204. [PMID: 19433150 DOI: 10.1016/j.beth.2008.05.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Revised: 05/21/2008] [Accepted: 05/27/2008] [Indexed: 11/30/2022]
Abstract
Few behavioral parent training (BPT) treatment studies for attention-deficit/hyperactivity disorder (ADHD) have included and measured outcomes with fathers. In this study, fathers were randomly assigned to attend a standard BPT program or the Coaching Our Acting-Out Children: Heightening Essential Skills (COACHES) program. The COACHES program included BPT plus sports skills training for the children and parent-child interactions in the context of a soccer game. Groups did not differ at baseline, and father ratings of treatment outcome indicated improvement at posttreatment for both groups on measures of child behavior. There was no significant difference between groups on ADHD-related measures of child outcome. However, at posttreatment, fathers who participated in the COACHES program rated children as more improved, and they were significantly more engaged in the treatment process (e.g., greater attendance and arrival on time at sessions, more homework completion, greater consumer satisfaction). The implications for these findings and father-related treatment efforts are discussed.
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Comparative Study |
16 |
58 |
16
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Chacko A, Kofler M, Jarrett M. Improving outcomes for youth with ADHD: a conceptual framework for combined neurocognitive and skill-based treatment approaches. Clin Child Fam Psychol Rev 2014; 17:368-84. [PMID: 25120200 PMCID: PMC4335705 DOI: 10.1007/s10567-014-0171-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a prevalent and chronic mental health condition that often results in substantial impairments throughout life. Although evidence-based pharmacological and psychosocial treatments exist for ADHD, effects of these treatments are acute, do not typically generalize into non-treated settings, rarely sustain over time, and insufficiently affect key areas of functional impairment (i.e., family, social, and academic functioning) and executive functioning. The limitations of current evidence-based treatments may be due to the inability of these treatments to address underlying neurocognitive deficits that are related to the symptoms of ADHD and associated areas of functional impairment. Although efforts have been made to directly target the underlying neurocognitive deficits of ADHD, extant neurocognitive interventions have shown limited efficacy, possibly due to misspecification of training targets and inadequate potency. We argue herein that despite these limitations, next-generation neurocognitive training programs that more precisely and potently target neurocognitive deficits may lead to optimal outcomes when used in combination with specific skill-based psychosocial treatments for ADHD. We discuss the rationale for such a combined treatment approach, prominent examples of this combined treatment approach for other mental health disorders, and potential combined treatment approaches for pediatric ADHD. Finally, we conclude with directions for future research necessary to develop a combined neurocognitive + skill-based treatment for youth with ADHD.
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Review |
11 |
54 |
17
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Patra S, Samal SC, Chacko A, Mathan VI, Mathan MM. Cytomegalovirus infection of the human gastrointestinal tract. J Gastroenterol Hepatol 1999; 14:973-6. [PMID: 10530492 DOI: 10.1046/j.1440-1746.1999.01986.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Current interest in cytomegalovirus (CMV) is largely due to an increase in the number of cases of acquired immunodeficiency syndrome and organ transplantation in recent years. The proper recognition of CMV-infected cells in gastrointestinal mucosal biopsies is critical for effective treatment of this condition. METHODS A total of 6580 endoscopic mucosal biopsies from 6323 patients in the 8-year period (1989-1996) were examined for CMV inclusion bodies. The endoscopic appearance and particularly the presence of ulcers were also analysed. RESULTS AND CONCLUSIONS The prevalence of cytomegalovirus (CMV) inclusions was 9 per thousand in the gastrointestinal mucosal biopsies from an unselected group of patients. Of the 54 patients with CMV infection, 37 were immunocompromised and 17 apparently immunocompetent. Typical Cowdry inclusions and atypical inclusions were present, the latter more frequently in immunocompromised patients. The maximum prevalence of inclusions was in the oesophageal mucosa in immunocompromised individuals.
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26 |
51 |
18
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Pelham WE, Burrows-MacLean L, Gnagy EM, Fabiano GA, Coles EK, Wymbs BT, Chacko A, Walker KS, Wymbs F, Garefino A, Hoffman MT, Waxmonsky JG, Waschbusch DA. A dose-ranging study of behavioral and pharmacological treatment in social settings for children with ADHD. JOURNAL OF ABNORMAL CHILD PSYCHOLOGY 2014; 42:1019-31. [PMID: 24429997 PMCID: PMC4090274 DOI: 10.1007/s10802-013-9843-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Placebo and three doses of methylphenidate (MPH) were crossed with 3 levels of behavioral modification (no behavioral modification, NBM; low-intensity behavioral modification, LBM; and high-intensity behavior modification, HBM) in the context of a summer treatment program (STP). Participants were 48 children with ADHD, aged 5-12. Behavior was examined in a variety of social settings (sports activities, art class, lunch) that are typical of elementary school, neighborhood, and after-school settings. Children received each behavioral condition for 3 weeks, order counterbalanced across groups. Children concurrently received in random order placebo, 0.15 mg/kg/dose, 0.3 mg/kg/dose, or 0.6 mg/kg/dose MPH, 3 times daily with dose manipulated on a daily basis in random order for each child. Both behavioral and medication treatments produced highly significant and positive effects on children's behavior. The treatment modalities also interacted significantly. Whereas there was a linear dose-response curve for medication in NBM, the dose-response curves flattened considerably in LBM and HBM. Behavior modification produced effects as large as moderate doses, and on some measures, high doses of medication. These results replicate and extend to social-recreational settings previously reported results in a classroom setting from the same sample (Fabiano et al., School Psychology Review, 36, 195-216, 2007). Results illustrate the importance of taking dosage/intensity into account when evaluating combined treatments; there were no benefits of combined treatments when the dosage of either treatment was high but combination of the low-dose treatments produced substantial incremental improvement over unimodal treatment.
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Research Support, N.I.H., Extramural |
11 |
51 |
19
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Chacko A, Newcorn JH, Feirsen N, Uderman JZ. Improving medication adherence in chronic pediatric health conditions: a focus on ADHD in youth. Curr Pharm Des 2010; 16:2416-23. [PMID: 20513228 DOI: 10.2174/138161210791959908] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Accepted: 05/21/2010] [Indexed: 12/17/2022]
Abstract
Chronic pediatric health conditions pose a significant challenge for youth, their families and professionals who treat these conditions. Long-term adherence to interventions, including and often-times, pharmacological interventions, is necessary but often problematic. Understanding factors related to poor adherence and intervening to improve adherence is essential in order to maximize long-term outcomes. Attention-deficit/hyperactivity disorder (ADHD) is one such chronic health condition requiring long-term adherence to treatment. The aims of this review are to 1) review the extant literature regarding rates of adherence to medication for youth with ADHD; 2) summarize what is known regarding factors that impede and support greater adherence to medication; 3) introduce the Unified Theory of Behavior Change as a conceptual model that may assist in developing adherence treatment packages to support medication adherence; and 4) describe several potential interventions based on the Unified Theory of Behavior Change that may improve adherence to medication for youth with ADHD. Although pharmacological interventions for youth with ADHD have been evaluated for decades, only more recently has adherence to medication been the subject of interest. However, this literature has exclusively focused on understanding factors related to adherence, with no empirical studies of interventions to improve adherence in youth with ADHD. This paper provides a rationale and research agenda for systematic study of interventions to support medication adherence in youth with ADHD.
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Review |
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49 |
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Sharma SS, Venkateswaran S, Chacko A, Mathan M. Melanosis of the esophagus. An endoscopic, histochemical, and ultrastructural study. Gastroenterology 1991; 100:13-6. [PMID: 1983815 DOI: 10.1016/0016-5085(91)90576-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Endoscopic, histological, and ultrastructural features of 21 cases of esophageal melanosis are described. These cases were detected during 1000 consecutive routine upper gastrointestinal endoscopies. Staining characteristics and ultrastructure of the pigment contained in the endoscopically visible lesions were found to be similar to those of true melanin.
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34 |
46 |
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Chacko A, Pelham WE, Gnagy EM, Greiner A, Vallano G, Bukstein O, Rancurello M. Stimulant medication effects in a summer treatment program among young children with attention-deficit/hyperactivity disorder. J Am Acad Child Adolesc Psychiatry 2005; 44:249-57. [PMID: 15725969 DOI: 10.1097/00004583-200503000-00009] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study examined the effectiveness of stimulant medication on multiple domains of functioning in 36 young (5 to 6 years old) children diagnosed with attention-deficit/hyperactivity disorder (ADHD). METHOD Five- and 6-year-old children attending a summer treatment program between 1987 and 1997 underwent a randomized clinical assessment of the effect of two doses of methylphenidate (0.3 mg/kg versus 0.6 mg/kg) and placebo on social behavior and academic performance. RESULTS Methylphenidate had an effect on all four social behaviors and improved two of the three areas of academic functioning. Dose effects were present for three of the seven dependent measures. Individual analyses indicated a therapeutic response rate between 39% and 100% across dependent measures. Furthermore, individual analyses of response indicated that across several important dependent measures, 39% to 98% of children showed little incremental improvement with the higher dose compared with the lower dose of stimulant medication. CONCLUSIONS Stimulant medication is an effective treatment for young children diagnosed with ADHD; however, multiple domains of functioning must be assessed to determine the most effective dose for young children with ADHD.
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Clinical Trial |
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Fabiano GA, Pelham WE, Gnagy EM, Burrows-MacLean L, Coles EK, Chacko A, Wymbs BT, Walker KS, Arnold F, Garefino A, Keenan JK, Onyango AN, Hoffman MT, Massetti GM, Robb JA. The Single and Combined Effects of Multiple Intensities of Behavior Modification and Methylphenidate for Children With Attention Deficit Hyperactivity Disorder in a Classroom Setting. SCHOOL PSYCHOLOGY REVIEW 2019. [DOI: 10.1080/02796015.2007.12087940] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Siegel E, Reiner B, Abiri M, Chacko A, Morin R, Ro DW, Spicer K, Strickland N, Young J. The filmless radiology reading room: a survey of established picture archiving and communication system sites. J Digit Imaging 2000; 13:22-3. [PMID: 10847356 PMCID: PMC3453269 DOI: 10.1007/bf03167618] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
The purpose of this study was to survey radiologists experienced in soft-copy diagnosis using computer workstations about their current reading room environment, their impressions of the efficacy of their reading room design, and their recommendations based on their experience for improvement of the soft-copy reading environment. Surveys were obtained from radiologists at seven sites representing three major picture archiving and communication system (PACS) vendors throughout the world that have had extensive experience with soft-copy interpretation of radiology studies. The radiologists filled out a detailed survey, which was designed to assess their current reading room environment and to provide them with the opportunity to make suggestions about improvement of the PACS reading rooms. The survey data were entered into a database and results were correlated with multiple parameters, including experience with PACS, types of modalities interpreted on the system, and number of years of experience in radiology. The factors judged to be most important in promoting radiologist productivity were room lighting, monitor number, and monitor brightness. Almost all of the radiologists indicated that their lighting source was from overhead rather than indirect or portable light sources. Approximately half indicated they had the capability of dimming the brightness of the overhead lighting. Most radiologists indicated that they were able to adjust room temperature but that they did not have individual temperature controls at their workstations. The radiologists indicated that the most troublesome sources of noise included background noise, other radiologists, and clinicians much more than noise from computer monitors, technologists, or patients. Most radiologists did not have chairs that could recline or arm rests. Most did have wheels and the capability to swivel, both of which were judged important. The majority of chairs also had lumbar support, which was also seen to be important. Radiologists commonly adjusted room lighting and their reading chair, but rarely adjusted room temperature or monitor brightness. The median number of hours spent at the workstation before taken a "break" was 1.5. Common recommendations to improve the room layout included compartmentalization of the reading room and availability of the hospital/radiology information system at each workstation. The survey data suggest several areas of potential improvement based on radiologists' experience. Optimization of soft-copy reading room design is likely to result in decreased fatigue and increased productivity.
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brief-report |
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Chacko A, Wymbs BT, Flammer-Rivera LM, Pelham WE, Walker KS, Arnold FW, Visweswaraiah H, Swanger-Gagne M, Girio EL, Pirvics LL, Herbst L. A pilot study of the feasibility and efficacy of the Strategies to Enhance Positive Parenting (STEPP) program for single mothers of children with ADHD. J Atten Disord 2008; 12:270-80. [PMID: 17934177 DOI: 10.1177/1087054707306119] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The Strategies to Enhance Positive Parenting (STEPP) program was developed to address putative factors related to poor engagement in and outcomes following traditional behavioral parent training (BPT) for single mothers of children diagnosed with ADHD. METHOD Twelve single mothers of children with ADHD were enrolled in an initial investigation of the feasibility and preliminary efficacy of the 9-week STEPP program. RESULTS Results indicated that the STEPP program was effective in reducing problematic child behavior and improving parental stress and psychopathology at posttreatment. The STEPP program resulted in high rates of treatment attendance and completion and consumer satisfaction with the program. However, results also indicated that the STEPP program did not improve childrens' overall psychosocial impairment and resulted in small effect size findings across measures. CONCLUSION The results of the pilot study are encouraging but indicate a need to improve the potency and delivery of certain aspects of the STEPP program.
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Comparative Study |
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Chacko A, Fabiano GA, Doctoroff GL, Fortson B. Engaging Fathers in Effective Parenting for Preschool Children Using Shared Book Reading: A Randomized Controlled Trial. JOURNAL OF CLINICAL CHILD AND ADOLESCENT PSYCHOLOGY 2017; 47:79-93. [PMID: 28103110 DOI: 10.1080/15374416.2016.1266648] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Engaging fathers and improving their parenting and, in turn, outcomes for their children in preventive/promotion-focused parenting interventions has been a notable, but understudied, challenge in the field. This study evaluated the effects of a novel intervention, Fathers Supporting Success in Preschoolers: A Community Parent Education Program, which focuses on integrating behavioral parent training with shared book reading (i.e., Dialogic Reading) using key conceptual models (i.e., common elements, deployment model, task shifting) to engage and improve father (i.e., male guardians) and child outcomes. One hundred twenty-six low-income, Spanish-speaking fathers and their children were recruited across three Head Start centers in urban communities and were randomized to the intervention or to a waitlist control condition. Outcomes were obtained before and immediately postintervention and included observed and father-reported parenting and child behaviors, standardized assessments of language, and father self-reported parental stress and depressive symptoms. Attendance data were also collected as a proxy measure of engagement to the intervention. Parenting behaviors (observed and father-reported), child behaviors (father-reported), and language development of the children in the intervention group improved significantly relative to those in the waitlist control condition. Effect sizes (ESs) were in the small to large range across outcomes. Fathers can be engaged in parenting interventions, resulting in improved parent and child outcomes. Greater attention must be given to methods for maximizing parenting within a family and toward developing effective, engaging, and sustainable intervention models for fathers.
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Research Support, U.S. Gov't, P.H.S. |
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