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Dive into the research topics where Christopher G. McCusker is active.

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Featured researches published by Christopher G. McCusker.


Schizophrenia Bulletin | 2011

The Association Between Childhood Trauma and Memory Functioning in Schizophrenia

Kate Douse; Christopher G. McCusker; Lorraine Feeney; Suzanne Barrett; Ciaran Mulholland

OBJECTIVE Both neurocognitive impairments and a history of childhood abuse are highly prevalent in patients with schizophrenia. Childhood trauma has been associated with memory impairment as well as hippocampal volume reduction in adult survivors. The aim of the following study was to examine the contribution of childhood adversity to verbal memory functioning in people with schizophrenia. METHODS Eighty-five outpatients with a Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition) diagnosis of chronic schizophrenia were separated into 2 groups on the basis of self-reports of childhood trauma. Performance on measures of episodic narrative memory, list learning, and working memory was then compared using multivariate analysis of covariance. RESULTS Thirty-eight (45%) participants reported moderate to severe levels of childhood adversity, while 47 (55%) reported no or low levels of childhood adversity. After controlling for premorbid IQ and current depressive symptoms, the childhood trauma group had significantly poorer working memory and episodic narrative memory. However, list learning was similar between groups. CONCLUSION Childhood trauma is an important variable that can contribute to specific ongoing memory impairments in schizophrenia.


Archives of Disease in Childhood | 2006

Determinants of neuropsychological and behavioural outcomes in early childhood survivors of congenital heart disease.

Christopher G. McCusker; Nicola N Doherty; Bernadette Molloy; Frank Casey; Nichola Rooney; Connor Mulholland; Andrew Sands; Brian Craig; Moira Stewart

Aims: To evaluate the relative effect of cyanosis, surgical interventions and family processes on neuropsychological and behavioural outcomes in 4-year-old survivors of serious congenital heart disease (CHD). Methods: 90 children with a range of cyanotic and acyanotic conditions, who underwent either corrective or palliative surgery, completed a neuropsychological and behavioural evaluation. Families of participants were also profiled by evaluation of maternal mental health, worry, social support, parenting style and family functioning. Results: Compromised neuropsychological outcomes were associated with a combination of cyanotic conditions and open-heart surgery, but this was not exacerbated by having a complex, palliative, status. Both cyanotic and acyanotic conditions were associated with specific sensorimotor delays, regardless of method of the correction. Only children with complex conditions and palliative interventions seemed at risk of poor behavioural outcomes; indeed, children with cyanosis with complete repair showed favourable behavioural outcomes compared with controls. Multivariate analyses highlighted the sometimes greater relevance of family processes (eg parenting style, maternal mental health and worry), rather than disease or surgical factors, in predicting especially behavioural outcomes. Conclusions: The findings (1) suggest a more complex relationship between cyanosis, surgical methods of correction, neuropsychological and behavioural outcomes than previously charted, (2) highlight that family processes may be aetiologically more important than disease and surgical factors, and (3) indicate specific targets for secondary prevention programmes for this at-risk population.


Child Care Health and Development | 2010

A controlled trial of early interventions to promote maternal adjustment and development in infants born with severe congenital heart disease

Christopher G. McCusker; Nicola N Doherty; Bernadette Molloy; Nichola Rooney; Connor Mulholland; Andrew Sands; Brian Craig; Moira Stewart; Frank Casey

Abstract Background Congenital heart disease can have a negative impact on both infant development and maternal adjustment. This study considered the impact of a new programme of early psychosocial interventions on such outcomes, following the birth of a child with severe congenital heart disease. Methods Seventy infants and their mothers were assigned to an intervention or control group based on order of presentation to the unit. Interventions aimed at bolstering mother-infant transactions, through psychoeducation, parent skills training and narrative therapy techniques were implemented. Results Clinically and statistically significant gains were observed at 6-month follow-up on the mental (but not the psychomotor) scale of the Bayleys-II. Positive gains were also manifested on feeding practices, maternal anxiety, worry and appraisal of their situation. Conclusions A programme of generalizable psychosocial interventions is shown to have a positive impact on the infant with severe congenital heart disease and the mother.


Bipolar Disorders | 2008

Effects of trauma on bipolar disorder: the mediational role of interpersonal difficulties and alcohol dependence

Chrissie Maguire; Christopher G. McCusker; Ciaran Meenagh; Ciaran Mulholland

OBJECTIVES This study examined: (i) the prevalence of trauma in a bipolar disorder (BD) sample, and (ii) how trauma histories mediated by interpersonal difficulties and alcohol dependence impact on the severity of BD. The prevalence of posttraumatic stress disorder (PTSD) and its relationship to outcomes in BD were also examined. METHODS Sixty participants were recruited from a geographically well-defined mental health service in Northern Ireland. Self-reported trauma histories, PTSD, interpersonal difficulties and alcohol dependence and were examined in relation to illness severity. RESULTS A high prevalence of trauma was found. Trauma predicted the frequency of hospital admissions (R(2) = 0.08), quality of life (R(2) = 0.23) and inter-episode depressive symptoms (R(2) = 0.13). Interpersonal difficulties, but not alcohol dependence, appeared to play an important role in mediating these adverse effects. While only 8% of the sample met criteria for active PTSD, this comorbid disorder was associated with BD severity. CONCLUSIONS This study indicates that awareness of trauma is important in understanding individual differences in bipolar presentations. The theoretical and clinical implications of evidence that trauma is related to more adverse outcomes in BD are discussed. The finding that interpersonal difficulties mediate the relationship between trauma and BD severity is novel. The need for adjunctive evidence-based treatments targeting interpersonal difficulties is considered.


Journal of Reproductive and Infant Psychology | 2009

Predictors of psychological functioning in mothers and fathers of infants born with severe congenital heart disease

Nicola N Doherty; Christopher G. McCusker; Bernadette Molloy; Connor Mulholland; Nichola Rooney; Brian Craig; Andrew Sands; Moira Stewart; Francis Casey

This study examined mental health and coping styles in both mothers and fathers of infants born with a severe congenital heart defect. Factors associated with mental health outcomes were elucidated. Parents of 70 infants, recently born with a severe congenital heart defect, completed questionnaires which examined psychological functioning and coping strategies. Disease, surgical and psychosocial factors were examined for their significance in predicting psychological functioning. Findings indicated elevated levels of clinically significant psychological distress in mothers, compared to fathers, and differences between parents in coping styles. Regression analyses suggested that the extent of distress in both parents was not primarily predicted by illness or demographic factors. Rather, certain coping styles, knowledge, subjective worry and family functioning emerged as significant predictive variables. Implications for early intervention are discussed.


Developmental Medicine & Child Neurology | 2002

Adjustment in children with intractable epilepsy: importance of seizure duration and family factors

Christopher G. McCusker; Patrick John Kennedy; Jennifer Anderson; Elaine M Hicks; Donncha Hanrahan

Seventy‐five families of children with intractable epilepsy but without a severe learning disability (mean age 7 years 1 month, SD 2 years 6 months; range 2 to 12 years) who attended a regional paediatric neurology service, were surveyed. A postal questionnaire was used which included standardized measures of child and family adjustment; forty‐eight families responded (64%; 31 males, 17 females). There was no significant difference between responders and non‐responders in terms of age, sex, number of other chronic illnesses and disabilities, age at epilepsy diagnosis, seizure type, nor number of antiepileptic drugs currently prescribed (p>0.05). The importance of including multidimensional measures of outcome was highlighted by the finding that epilepsy, pharmacological, and psychosocial factors were differentially associated with specific adjustment difficulties. Two factors appeared to be most pervasively implicated across a range of adjustment problems: frequency of rectal diazepam administration and family patterns of relating to each other (p<0.05). It appeared that duration of seizures (as indicated by frequency of rectal diazepam administration), rather than the frequency of seizures per se, was more pernicious in terms of poor adjustment. Intrafamilial relations (degree of conflict/cohesion and so on) were not only associated with adjustment difficulties in the child, but also with the frequency of seizures themselves. Implications for psychological interventions in intractable epilepsy in childhood are highlighted.


Journal of Substance Abuse Treatment | 1996

Prescribing drug of choice to illicit heroin users: the experience of a U.K. community drug team.

Christopher G. McCusker; Mark Davies

Functioning across several life domains, in the first cohort of illicit heroin users to be prescribed injectable diamorphine (pharmaceutical heroin) as an adjunct to treatment within a community drugs service, was assessed in a cross-sectional study with a 6-month follow-up. Case-control matching procedures were employed to compare outcomes in this group with an oral methadone-prescribed sample, attending different clinics within the same community service and geographical locale. The Heroin Prescribed (HP) group manifested lower levels of psychopathology and showed greater retention in treatment. Although reduced, illicit heroin misuse was not eliminated; the use of other illicit substances was comparable between groups but significantly more of the HP group were using illicit cocaine. Although no differences in current physical health were apparent, the sharing of used injecting equipment was reported only in the MP group. Criminal activity appeared significantly reduced, but not eliminated, in the HP group. Implications for prescribing practice are discussed.


British Journal of Clinical Psychology | 2010

Autobiographical memory specificity, depression, and trauma in bipolar disorder

William Mowlds; Christopher G. McCusker; Ciaran Meenagh; Derek Robinson; Angela Wilson; Ciaran Mulholland

OBJECTIVES In a bipolar disorder (BD) sample, the present study investigated: (i) the prevalence of trauma; (ii) the specificity of autobiographical memory (AM); (iii) the influence of childhood trauma on AM specificity, current inter-episode depressive mood, and BD severity; (iv) if AM specificity moderates the influence of childhood trauma on current inter-episode depressive mood and BD severity. METHODS Fifty-two participants were recruited from a geographically well-defined mental health service in Northern Ireland. The AM test, self-report measures of lifetime experience of trauma, childhood trauma, and depression were administered. Severity of BD was estimated utilizing a systematic tool for reviewing all available clinical data of participants. RESULTS A high prevalence of trauma was found. A total of 94.2% (49/52) of participants reported experiencing a traumatic event in either childhood or adulthood. AM specificity was significantly lower than previous reports of such in major depression. However, whilst childhood trauma predicted current inter-episode depressive mood, childhood trauma was not predictive of BD severity or AM specificity. Moreover, the association between childhood trauma and depressed mood was not moderated by AM specificity. CONCLUSIONS The findings of this study suggest a relationship between early psychosocial adversity and current inter-episode depressive mood in BD. In addition, levels of overgeneral AM are similar to that reported for depression, but are unrelated to childhood trauma, current inter-episode depressive mood, or BD severity. Clinical implications include the importance of routine assessment of trauma in BD and the need for adjunctive evidenced-based psychological therapies.


Pediatrics | 2006

Neurodevelopmental and respiratory follow-up results at 7 years for children from the United Kingdom and Ireland enrolled in a randomized trial of early and late postnatal corticosteroid treatment, systemic and inhaled (the Open Study of Early Corticosteroid Treatment).

Trevor T. Wilson; Lorraine Waters; Christopher Patterson; Christopher G. McCusker; Nichola Rooney; Neil Marlow; Henry L. Halliday

OBJECTIVES. The goals were to compare early school-age neurodevelopmental and respiratory outcomes for children who were treated with either early (<3 days) or delayed selective (>15 days) postnatal corticosteroid therapy and to compare systemic dexamethasone treatment with inhaled budesonide treatment. METHODS. One hundred twenty-seven (84%) of 152 survivors from the United Kingdom and Ireland who were recruited to the Open Study of Early Corticosteroid Treatment, a randomized trial of inhaled and systemic corticosteroid therapy to prevent chronic lung disease, were traced and assessed at a median age of 7 years. Outcome measures were level of disability, presence of cerebral palsy, cognitive ability, behavioral difficulties and competencies, growth, and respiratory symptoms. Results were adjusted for potential confounding variables (gestational age, birth weight, gender, prenatal steroid therapy, method of delivery, Apgar score at 5 minutes, and Clinical Risk Index for Babies score). RESULTS. There were no significant differences among the treatment groups in cognitive ability, behavioral competencies or difficulties, overall disability rates, cerebral palsy, combined outcomes of death or cerebral palsy and death or moderate/severe disability, growth, respiratory morbidity, or diastolic blood pressure. Those assigned to dexamethasone were more likely to have high systolic blood pressure and to have a diagnosis of asthma than were those assigned to budesonide. CONCLUSIONS. Although postnatal steroid therapy has been associated with poor long-term outcomes, this study failed to show significant differences in cognitive function between dexamethasone- and budesonide-allocated groups. There may be increased systolic blood pressure and a greater likelihood of developing asthma in childhood after postnatal dexamethasone treatment.


Heart | 2013

Exercise training improves activity in adolescents with congenital heart disease

M L Morrison; Andrew Sands; Christopher G. McCusker; Pascal McKeown; M McMahon; J Gordon; Brian Grant; Brian Craig; F A Casey

Objectives To ascertain if motivational techniques and a structured exercise programme can increase activity in adolescents afflicted with congenital heart disease (CHD). Design Prospective randomised controlled trial. Setting One hundred and forty-three patients aged 12–20 years attending the tertiary centre for paediatric cardiology in Northern Ireland. Main outcome measures Increase in exercise capacity as assessed by duration of exercise stress test, and number of minutes spent in moderate to vigorous physical activity (MVPA) per day. Results Eighty-six patients were men (60%), mean age was 15.60±2.27 years. Seventy-three percent were considered to have major CHD. Seventy-two participants were randomised to the intervention group. Following intervention, duration of exercise test increased by 1 min 5 s for the intervention group (p value 0.02) along with increase in predicted VO2Max (p value 0.02). There was a significant increase in minutes of MVPA per day for the intervention group from baseline to reassessment (p value <0.001) while MVPA remained much the same for the control group. Fourteen patients met the current recommendation for more than 60 min MVPA per day at baseline. This doubled to 29 participants at reassessment. There were no adverse effects or mortalities reported. Conclusions Exercise training is safe, feasible and beneficial in adolescents with CHD. Psychological techniques can be employed to maximise the impact of interventions. Trial Registration Number ISRCTN27986270.

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Andrew Sands

Royal Belfast Hospital for Sick Children

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Brian Craig

Royal Belfast Hospital for Sick Children

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Frank Casey

Royal Belfast Hospital for Sick Children

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Nicola N Doherty

Royal Belfast Hospital for Sick Children

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Nichola Rooney

Royal Belfast Hospital for Sick Children

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Moira Stewart

Queen's University Belfast

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Bernadette Molloy

Royal Belfast Hospital for Sick Children

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M L Morrison

Royal Belfast Hospital for Sick Children

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Brian Grant

Royal Belfast Hospital for Sick Children

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Connor Mulholland

Royal Belfast Hospital for Sick Children

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