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Featured researches published by Markus A. Landolt.


Journal of Child Psychology and Psychiatry | 2003

Incidence and associations of parental and child posttraumatic stress symptoms in pediatric patients

Markus A. Landolt; Margarete E. Vollrath; Karin Ribi; Hanspeter E. Gnehm; Felix H. Sennhauser

BACKGROUND Previous studies consistently found remarkable prevalence rates of posttraumatic stress symptoms (PTSS) and posttraumatic stress disorders (PTSD) in pediatric patients and their parents. Findings suggest a significant association between child and parent PTSS. The present study examined, in a sample of pediatric patients with different conditions, incidence rates and determinants of PTSS and PTSD in the patients, and their mothers and fathers. Also, associations of maternal, paternal and child PTSS and PTSD were analyzed. METHOD Two hundred and nine children (aged 6.5-14.5 years) were interviewed 5-6 weeks after an accident or a new diagnosis of cancer or diabetes mellitus type 1 by means of the Child PTSD Reaction Index. Their mothers (n = 180) and fathers (n = 175) were assessed with the Posttraumatic Diagnostic Scale. RESULTS Children reported PTSS levels in the mild range. Sixteen percent of the fathers and 23.9% of the mothers met full DSM-IV diagnostic criteria for current PTSD. Type of trauma impacted differently on parents and children. In children, accident-related injury was associated with higher PTSS scores. Conversely, in parents, diagnosis of cancer in their child was associated with more symptoms. Functional status of the child was also found to be an important predictor of PTSS in children and parents. PTSS scores of mothers and fathers were significantly correlated with each other. However, child PTSS were not significantly related to PTSS of mothers and fathers. This was true for total scores as well as for DSM-IV symptom clusters. CONCLUSIONS There is a need for careful evaluation of PTSS and PTSD in pediatric patients with accidental injuries or sudden onset of severe chronic diseases and in their respective parents. Importantly, children, their mothers, and their fathers should be assessed separately, because a significant association between child and parental PTSS may not exist.


BMC Pediatrics | 2009

Psychological adjustment and quality of life in children and adolescents following open-heart surgery for congenital heart disease: a systematic review

Beatrice Latal; Susanne Helfricht; Joachim E. Fischer; Urs Bauersfeld; Markus A. Landolt

BackgroundChildren with congenital heart defects (CHD) requiring open-heart surgery are a group at high risk for health-related sequelae. Little consensus exists regarding their long-term psychological adjustment (PA) and health-related quality of life (QoL). Thus, we conducted a systematic review to determine the current knowledge on long-term outcome in this population.MethodsWe included randomized controlled trials, case control, or cohort studies published between 1990–2008 evaluating self- and proxy-reported PA and QoL in patients aged between two and 17 years with a follow-up of at least two years after open heart surgery for CHD.ResultsTwenty-three studies assessing psychological parameters and 12 studies assessing QoL were included. Methodological quality of the studies varied greatly with most studies showing a moderate quality. Results were as follows: (a) A considerable proportion of children experienced psychological maladjustment according to their parents; (b) studies on self-reported PA indicate a good outcome; (c) the studies on QoL suggest an impaired QoL for some children in particular for those with more severe cardiac disease; (d) parental reports of psychological maladjustment were related to severity of CHD and developmental delay.ConclusionA significant proportion of survivors of open-heart surgery for CHD are at risk for psychological maladjustment and impaired QoL. Future research needs to focus on self-reports, QoL data and adolescents.


Health and Quality of Life Outcomes | 2006

Health-related quality of life in children with newly diagnosed cancer: a one year follow-up study

Markus A. Landolt; Margarete E. Vollrath; Felix Niggli; Hanspeter E. Gnehm; Felix H. Sennhauser

BackgroundMost studies on health-related quality of life (HRQOL) in children with cancer focussed on survivors. Only few studies have evaluated patients during ongoing oncological treatment. The aim of this study was a prospective assessment of HRQOL in children during the first year after diagnosis of cancer and an examination of demographic, medical, and parental predictors of HRQOL.MethodsFifty-two patients (mean age: 10.9 years) were assessed 6 weeks and 1 year after diagnosis with the TNO-AZL Questionnaire for Childrens Health-Related Quality of Life. Parents completed the Brief Symptom Inventory.ResultsCompared to a community sample, patients reported more physical complaints, reduced motor functioning and autonomy, and impaired positive emotional functioning 6 weeks after diagnosis. HRQOL significantly improved over the year. However, at 1 year, patients still showed reduced motor and emotional functioning. At 6 weeks, children with leukemia were most affected. At 1 year, patients with brain tumors complained about more physical symptoms than the other groups. Intensity of treatment and presence of medical complications mainly influenced HRQOL at 6 weeks but less at 1 year. Parental psychopathology was associated with better cognitive functioning in the child.ConclusionThis prospective study found several domains of HRQOL to be compromised 6 weeks and 1 year after the diagnosis of cancer. Although HRQOL significantly increased over the year, there were important differences between diagnostic groups. The findings highlight the importance of repeated evaluation of HRQOL in children undergoing cancer treatment and consideration of specific differences between diagnostic groups.


Journal of Child Psychology and Psychiatry | 2012

The mutual prospective influence of child and parental post-traumatic stress symptoms in pediatric patients.

Markus A. Landolt; Eivind Ystrom; Felix H. Sennhauser; Hanspeter E. Gnehm; Margarete E. Vollrath

BACKGROUND   Previous studies found notable rates of post-traumatic stress symptoms (PTSS) and post-traumatic stress disorder (PTSD) in pediatric patients and their parents and suggest a significant association between child and parent PTSS. However, little is known about mutual influences between child and parental PTSS over time. This study prospectively examined the presence of PTSS and PTSD and the mutual influence of child and parental PTSS in a large sample of pediatric patients with different medical conditions. METHODS   A total of 287 children (aged 6.5-16 years) and their mothers (n = 239) and fathers (n = 221) were assessed at 5-6 weeks and 1 year after an accident or a new diagnosis of cancer or diabetes mellitus type 1 in the child. RESULTS   At the first assessment 11.1% and at the second assessment 10.2% of the children had moderate to severe PTSS. At 5-6 weeks 29.3% of mothers and 18.6% of fathers met criteria for PTSD. At 1 year the rates were 14.6% for mothers and 7.9% for fathers. There were considerable differences of PTSS among different medical diagnostic groups in children and parents. Mothers were more vulnerable than fathers. Structural equation analysis revealed that initially high PTSS in mothers and fathers were longitudinally related to poorer recovery from PTSS in the child. Cross-lagged effects from the child to the parents and from one parent to the other were not significant. CONCLUSIONS   This study highlights the long-term influence of parental PTSS on the childs recovery after trauma and calls for a family systems approach and for early interventions in the treatment of traumatized pediatric patients.


The Journal of Pediatrics | 2008

Health-Related Quality of Life in Children and Adolescents after Open-Heart Surgery

Markus A. Landolt; Emanuela R. Valsangiacomo Buechel; Bea Latal

OBJECTIVE To assess health-related quality of life (HRQOL) in children with congenital heart disease (CHD) after open-heart surgery and to identify medical, individual, and family-related predictors of outcome. STUDY DESIGN Cross-sectional cohort study. 155 children with CHD (40% cyanotic type) who underwent open-heart surgery between 1995 and 1998 were eligible. One hundred and ten patients (response rate 71%) were investigated at a mean age of 10.4 years. Mean age at operation was 2.3 years (range, 0-8.7 years), mean duration of cardiopulmonary bypass was 95 minutes (range, 5-206 minutes), and circulatory arrest was performed in 9% of the children. Child- and parent-rated HRQOL was evaluated by the TNO-AZL Child Quality of Life Questionnaire. Scores were compared with healthy references. RESULTS Most dimensions of self-reported HRQOL were impaired, including autonomy and motor, social, and emotional functioning. In addition to the childrens ratings, parents rated cognitive functioning of their children as diminished. Multivariate analyses revealed that duration of cardiopulmonary bypass, length of hospitalization, need for current cardiac medication, and adverse family relationships had a negative impact on parent- but not on child-rated HRQOL. CONCLUSIONS HRQOL is impaired in children with CHD after open-heart surgery. Medical variables and the quality of family relationships are important determinants.


Journal of Interpersonal Violence | 2012

Disclosure of Child Sexual Abuse by Adolescents A Qualitative In-Depth Study

Verena Schönbucher; Thomas Maier; Meichun Mohler-Kuo; Ulrich Schnyder; Markus A. Landolt

This qualitative study aimed to study the process of disclosure by examining adolescents from the general population who had experienced child sexual abuse (CSA). Twenty-six sexually victimized adolescents (23 girls, 3 boys; age: 15-18 years) participated in a qualitative face-to-face in-depth interview on different aspects of disclosure. A qualitative content analysis was conducted following Mayring and using the qualitative data analysis program Atlas.ti. In addition, quantitative correlation analyses were calculated to identify factors associated with disclosure. Less than one third of participants immediately disclosed CSA to another person. In most cases, recipients of both immediate and delayed disclosure were peers. More than one third of participants had never disclosed the abuse to a parent. Main motives for nondisclosure to parents were lack of trust or not wanting to burden the parents. Factors that correlated positively with disclosure were extrafamilial CSA, single CSA, age of victim at CSA, and having parents who were still living together. Negative associations with disclosure were found for feelings of guilt and shame and the perpetrator’s age. Many adolescent survivors of CSA have serious concerns about disclosure to their parents and consider friends as more reliable confidants. These findings have two main implications for prevention: (1) In order to facilitate disclosure to parents, the strengthening of the child–parent relationship should be given specific attention in prevention programs, and (2) prevention programs should aim at teaching adolescents how they can help a victim if they become a recipient of disclosure.


Child and Adolescent Psychiatry and Mental Health | 2010

Effectiveness of a single-session early psychological intervention for children after road traffic accidents: a randomised controlled trial

Daniel Zehnder; Martin Meuli; Markus A. Landolt

BackgroundRoad traffic accidents (RTAs) are the leading health threat to children in Europe, resulting in 355 000 injuries annually. Because children can suffer significant and long-term mental health problems following RTAs, there is considerable interest in the development of early psychological interventions. To date, the research in this field is scarce, and currently no evidence-based recommendations can be made.MethodsTo evaluate the effectiveness of a single-session early psychological intervention, 99 children age 7-16 were randomly assigned to an intervention or control group. The manualised intervention was provided to the child and at least one parent around 10 days after the childs involvement in an RTA. It included reconstruction of the accident using drawings and accident-related toys, and psychoeducation. All of the children were interviewed at 10 days, 2 months and 6 months after the accident. Parents filled in questionnaires. Standardised instruments were used to assess acute stress disorder (ASD), posttraumatic stress disorder (PTSD), depressive symptoms and behavioural problems.ResultsThe children of the two study groups showed no significant differences concerning posttraumatic symptoms and other outcome variables at 2 or at 6 months. Interestingly, analyses showed a significant intervention × age-group effect, indicating that for preadolescent children the intervention was effective in decreasing depressive symptoms and behavioural problems.ConclusionsThis study is the first to show a beneficial effect of a single-session early psychological intervention after RTA in preadolescent children. Therefore, an age-specific approach in an early stage after RTAs may be a promising way for further research. Younger children can benefit from the intervention evaluated here. However, these results have to be interpreted with caution, because of small subgroup sizes. Future studies are needed to examine specific approaches for children and adolescents. Also, the intervention evaluated here needs to be studied in other groups of traumatised children.Trial RegistrationClinical Trial Registry: ClinicalTrials.gov: NCT00296842.


Journal of Paediatrics and Child Health | 1998

Post-traumatic stress disorder in paediatric patients and their parents : An exploratory study

Markus A. Landolt; Boehler U; Schwager C; Urs Schallberger; Nuessli R

To determine the prevalence of post‐traumatic stress disorders (PTSD) in a selected population of paediatric patients and their parents.


Pediatric Critical Care Medicine | 2008

Surgery-related posttraumatic stress disorder in parents of children undergoing cardiopulmonary bypass surgery: a prospective cohort study.

Susanne Helfricht; Beatrice Latal; Joachim E. Fischer; Maren Tomaske; Markus A. Landolt

Objective: We aimed at evaluating surgery-related posttraumatic stress disorder (PTSD) in parents of children undergoing cardiopulmonary bypass surgery. Risk factors for parental PTSD symptoms were explored. Design: A prospective cohort study was performed assessing PTSD symptoms immediately after discharge and 6 months after cardiopulmonary bypass surgery. Setting: Recruitment took place at a tertiary pediatric medical center in Switzerland. Subjects: German-speaking parents of children with congenital heart defects aged between 0 and 16 yrs undergoing cardiopulmonary bypass surgery were eligible (n = 228). After child discharge, 135 mothers and 98 fathers of 139 children (response rate 61.0%) participated. Six months after surgery, 121 mothers and 92 fathers of 128 children (response rate, 56.1%) took part in the study. Interventions: Assessment via a screening instrument and self-rating scale, and extraction of data from charts. Measurements and Main Results: The Posttraumatic Diagnostic Scale was applied to estimate self-reported symptoms of PTSD. Following discharge, 16.4% of mothers and 13.3% of fathers met diagnostic criteria for acute PTSD. Another 15.7% of mothers and 13.3% of fathers experienced significant symptoms of posttraumatic stress. Six months after surgery, PTSD rates were 14.9% and 9.5%, respectively. Mothers experienced more severe symptoms of PTSD, but gender differences were not detected with regard to the frequency of PTSD at either time. After controlling for socioeconomic status and child preoperative morbidity, PTSD symptom severity after discharge remained the only significant predictor of PTSD severity at 6 months. Pre-, peri-, and postoperative factors did not predict parental PTSD. Conclusions: Parents of children undergoing cardiopulmonary bypass surgery are at increased risk for intermediate and long-term psychological malfunctioning. Acute symptoms of PTSD in parents shortly after discharge of their child are a major risk factor for the development of chronic PTSD. Clinicians need to identify parents at risk at an early stage to provide them with systematic support.


Acta Paediatrica | 2007

Predictors of coping strategy selection in paediatric patients

Markus A. Landolt; Margarete E. Vollrath; Karin Ribi

Aim: To assess the prevalence of specific coping strategies and predictors of coping strategy selection in 179 patients (mean age= 10.2 y). The children were investigated one month after the occurrence of an accident (n= 105), diagnosis of cancer (n= 26) or diagnosis of diabetes mellitus type I (n= 48). Results: Patients used a great variety of coping strategies. The most frequent strategies were cognitive avoidance, positive cognitive restructuring and avoidant actions. The strategies of seeking problem‐focused support and emotion‐focused support were rarely used. Diagnostic category, length of hospital stay, and gender were not associated with coping strategy use. Age, socioeconomic status and functional status of the patient were found to predict coping strategy selection. Younger children made less use of active coping, distraction and seeking support. Patients of lower socioeconomic status used religious coping strategies significantly more often, whereas patients with lower functional status used avoidance and support‐seeking strategies more often.

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Margarete E. Vollrath

Norwegian Institute of Public Health

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Beatrice Latal

Boston Children's Hospital

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Leif T. Eskedal

Norwegian Institute of Public Health

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Daniel M. Weber

Boston Children's Hospital

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Rita Gobet

Boston Children's Hospital

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