Children and families can achieve normal psychological adjustment and a good quality of life following pediatric liver transplantation: a long-term study

Strategies for Measuring Quality of Life among Pediatric Solid-Organ Transplant Recipients

Objective

Quality of life (QoL) has become a mainstay in the outcome assessment of pediatric solid-organ transplant recipients. Yet, how QoL is operationalized and measured varies drastically. It may be very difficult for clinicians and researchers to determine which methods of QoL assessment best meet the needs of their patients or study. The purpose of this literature review is to describe and evaluate the current status of QoL measurement in studies of pediatric solid-organ transplant recipients.

Data Sources

Searches of PubMed and PsycINFO from January 1985 to February 2012.

Study Selection

English peer-reviewed publications that described a method for measuring QoL whether it was a standardized questionnaire, qualitative approach, or another way of operationalizing the construct.

Data Extraction

QoL measurement strategies were extracted from 43 studies that met inclusion criteria.

Data Synthesis

Each article was reviewed and summarized by 2 study team members.

Conclusions

Many different strategies were used for measurement, and some were not consistent with established conceptualizations of QoL. Overall recommendations for best practices are offered. Detailed information about specific measures is included, and measures that seem to capture the construct well are recommended. Additionally, our review highlighted the importance of using a “battery approach,” including child and parent report as well as considering other variables, such as patient's age, when selecting a QoL measurement strategy.

New insights into family functioning and quality of life after pediatric liver transplantation

Thorough research of the medical aspects of pediatric liver transplantation has given way to recent interest in the impact of the transplantation process on the QOL of recipients and their families. In this cross-sectional study, we compared the family functioning and QOL of children (n = 30) aged between three and 16 yr (M = 10.10, s.d. = 3.62) who had received a liver transplant in the previous 1-12 yr (M = 5.31, s.d. = 3.44) with non-transplant children (n = 33), as reported via parent proxy. Results showed that parents of pediatric liver transplant recipients made significantly more adjustments to family routines to accommodate their children, particularly in relation to childcare. Impaired family functioning was also found to be associated with decreased QOL. These preliminary findings of relative deficits in family functioning may inform psychosocial interventions to assist pediatric liver transplant patients and their families. Further investigation beyond a single-center study incorporating subjective information from pediatric patients and their parents is recommended.

Liver transplantation in children: part 2--long-term issues

This two-part review provides a comprehensive summary of clinical and research literature on paediatric liver transplantation. Part 2 focuses on the long-term physical consequences and psychological impact of transplantation and critically examines neurobehavioural, sexual development, psychosocial function and overall impact on children's quality of life. This review highlights the implications for clinical practice in specialist and local services and suggests areas where research is required to improve the lives of children after liver transplantation.

A critical review of the health-related quality of life of children and adolescents after liver transplantation

We critically examined research on health-related quality of life (HRQL) in children and adolescents after liver transplantation. The specific aims were to identify research studies on HRQL after liver transplantation, to critique the methodological quality of the studies, to estimate overall HRQL after transplant, and to make recommendations for future research. Databases searched included Medline, Cumulative Index to Nursing and the Allied Health Literature, PsycINFO, EMBASE, Allied and Complementary Medicine, Institute for Scientific Information Web of Science, and Applied Social Sciences Index and Abstracts. Searches also were made on related Web sites and proceedings of transplantation and associated conferences. Eligible studies involved children between birth and 18 years of age who received isolated orthotopic, auxiliary, or living related liver transplantation. HRQL was assessed through 2 or more of the domains of physical health, psychological functioning, social functioning, family functioning, or general well-being. Eligible studies were abstracted, assessed for methodological quality, and synthesized using the sign test to provide an indication of the effect of liver transplantation on each HRQL domain. The synthesis of findings suggested an improvement in HRQL in comparison with pretransplant status; there was a trend toward a worse HRQL in comparison with the healthy population and better than those with other chronic illnesses. In conclusion, liver transplantation in childhood has a negative impact on some aspects of HRQL. However, this finding is tentative because of the small number of studies and variable study quality found.

Rehospitalization after pediatric living-donor liver transplantation

BACKGROUND

Although rehospitalization is one of the factors affecting quality of life after successful liver transplantation, the effects of rehospitalization have not been assessed to date.

PATIENTS AND METHODS

Of 40 consecutive cases of pediatric living-donor liver transplantation (LDLT) performed between April 1994 and October 2000, 28 patients with a graft survival of more than 1 year were enrolled in this study to examine rehospitalization after successful LDLT. The rate and cause of rehospitalization were analyzed retrospectively on the basis of medical records.

RESULTS

A total of 23 of the 28 patients were rehospitalized. There were 84 episodes of rehospitalization. The mean number of rehospitalization days per episode per patient was 21.06 +/- 21.02 days. The rate of total rehospitalization days to the days after the hospitalization for LDLT was 6.56% +/- 8.73%. Rehospitalization episodes were attributable to the following: cholangitis (21.4%), viral infection (16.7%), and portal stenosis (PS) (13.1%). Rehospitalization as the result of rejection accounted for 9.5% of the episodes. The period of rehospitalization was long in the case of cholangitis (49.7 +/- 62.4 days), PS (13.8 +/- 13.4 days), and rejection (52.9 +/- 45.4 days). Although there were a lot of rehospitalization episodes as the result of viral infection subsequent to cholangitis, each rehospitalization period lasted 4.4 +/- 6.6 days.

CONCLUSION

It is suggested that prevention of cholangitis and PS, which were the causes of frequent and long rehospitalization periods, would result in a reduction of rehospitalization and therefore a better quality of life after pediatric LDLT.

Pediatric transplantation of the kidney, liver and heart: summary report

The following is a summary report of an extensive review of the literature from 1966 to 2001 on growth and development in children receiving kidney, liver and heart transplants. The literature was assessed for relevancy to current clinical practice and for reliability and generalizability of the inferences based on the study design, controls, sample size, age distribution, confounding factors, use of standardized instruments, and consistency with other findings. While studies on growth are included in the review, the main emphasis is on research in cognitive and psychosocial development since these areas have been far less thoroughly studied and contain various methodological deficiencies. On the basis of the literature review both general methodological recommendations and specific recommendations for future research studies are made. Access to the full is provided on the World Wide Web at http://light.emmes.com/pedstransplantation/.

Psychosocial adaptation after solid organ transplantation in children

The possibility of extending life with advanced medical procedures such as organ transplantation in childhood has made it possible to focus on patients' well-being in a wider perspective. They still experience a high prevalence of medical and physical disabilities, which definitively have an impact on a child's psychosocial adjustment after transplantation. Many disabilities originate before transplantation, and much effort should be taken to diminish possible complications and ameliorate growth and neurodevelopment, which have an impact for later adjustment regardless of a successful transplantation. Well-being and QOL are not necessarily always correlated to the degree of physical disability. Different social, financial, and demographic factors also have an impact, as do children's and families' ability to cope with a chronic disorder. Nonadherence and noncompliance are a great problem, particularly in adolescents. They are the result and a possible cause of inferior psychosocial adjustment. Continuous multidisciplinary support, follow-up, and education are needed to cope with this problem. Validated and reliable health status measures in pediatric transplant recipients are scarce in the literature, and few assessments can be completed by the children themselves. A continuing effort must be made to improve psychosocial adjustment and QOL after transplantation to achieve the ultimate goal in medicine: the overall well-being of our patients.

Cognitive performance of children who have undergone liver transplantation

BACKGROUND

We investigated the cognitive status and quality of life (QoL) in the late postoperative phase of children who had undergone liver transplantation (LTx).

METHODS

The sample consisted of 29 children who had undergone LTx at our center. The children were at least 6 years of age and had received the transplant between 3 and 10 years (mean 6.4 years) previously. In 16 of the 29 children, a living-related transplantation had been performed. Cognitive function was assessed with the three subscales of the Kaufman Assessment Battery for Children (K-ABC): the sequential processing scale, simultaneous processing scale, and achievement scale. QoL was measured with a specific questionnaire for children.

RESULTS

The children scored below the population mean but within the normal range on all subscales of the K-ABC, except for the sequential processing scale, on which the children scored significantly below the norm and below their own performance on the simultaneous processing scale. Scores were below average for everyday and psychic functions and in the normal range for social and physical functions on the QoL questionnaire. Age at transplantation and achievement in the K-ABC were highly negatively correlated. A multiple regression analysis revealed that age and height at transplantation, and also to a lesser degree the type of transplantation, predict the level of cognitive functioning in the late postoperative phase.

CONCLUSION

We conclude that the cognitive functions and QoL of children in the late postoperative phase who have undergone LTx are at the lower end of the norm in the long-term follow-up. Children who are younger and more physically developed at the time of transplantation will have a better mental-development prognosis.

Long-term outcome after liver transplantation in children

Children (defined as under 18 yr of age) account for approximately 12.5% of all liver transplants in the United States. Even though the annual number of liver transplantation procedures remains relatively constant, the population of long-term survivors of liver transplantation has grown. Presently, the population of long-term survivors of liver transplantation is 10-fold greater then the number of transplantations carried out each year. For long-term survivors of liver transplantation, the goal is to maintain graft function and wellness while decreasing the morbidity associated with long-term immunosuppression. The primary diagnosis leading to liver transplantation in children do not recur in the allograft. Consequently, many of the complications of liver transplantation, both early and long term, relate to the need for immunosuppression. Children may be at increased risk to develop significant end-organ damage as a result of increased serum lipid levels, elevated blood pressure, altered glucose metabolism, decreased renal function, cancer, and diminished bone accretion that occur as a result of immunosuppressive therapy or complications of therapy. As survival rates have increased, health care providers have begun to assess health-related quality of life. We will review our current knowledge of long-term outcome following pediatric liver transplantation in children.

Immunosuppressive drugs in paediatric liver transplantation

Orthotopic liver transplantation is established treatment for children with acute and chronic liver failure. Despite advances in pre- and postoperative management, innovative surgical techniques and new immunosuppressive drugs, acute and chronic rejection remains a problem. In addition, well established adverse effects of commonly used immunosuppressive drugs are no longer accept able. More potent, but less toxic, immunosuppressive agents have been developed and some novel compounds are now entering routine practice. Cyclosporin was the cornerstone of immunosuppressive therapy until the introduction of its novel pharmaceutical form (Neoral) with improved bioavailability, lower inter- and intraindividual pharmacokinetic variability and improved graft survival. Recently, tacrolimus, a macrolide drug with a similar mode of action, but much higher potency, was introduced and, at present, is the only agent which can successfully replace cyclosporin as a first-line immunosuppressive drug. Mycophenolate mofetil has recently been approved for use in adult and paediatric renal transplant recipients. It has a similar mode of action to cyclosporin and tacrolimus, but acts at a later stage of the T cell activation pathway. Administration with standard immunosuppressive drugs reduces the incidence of acute rejection and enables cyclosporin and tacrolimus dose reduction, thus reducing the risk of associated toxic effects. Phase I and II trials with sirolimus (rapamycin), a macrolide antibiotic, have shown comparable immunosuppressive action, when administered in conjunction with standard immunosuppressants. Further clinical trials need to be carried out to establish efficacy, tolerability and pharmacokinetics in paediatric transplant recipients. Monoclonal antibody therapy (daclizumab and basiliximab) is an exciting new development whereby T cell proliferation is inhibited by selective blockade of interleukin (IL)-2 receptors. Preliminary results, when used in combination with a standard immunosuppressive regimen, are good with respect to incidence of acute graft rejection, host immune response and adverse effects. FTY720 is a novel synthetic immunosuppressive compound which induces a reduction in peripheral blood lymphocyte count through apoptotic T cell death or accelerated trafficking of T cells into lymphatic tissues. Experimental animal studies demonstrated synergistic action in combination with low dose cyclosporin or tacrolimus, potentiating their immunosuppressive effects. Further studies are being carried out to determine its potential for application in organ transplantation. Despite this rapid development of novel compounds, it will take many years before they may become part of standard protocols in paediatric transplantation medicine. Further development and research of efficacy and tolerability of existing drugs is, therefore, vital.

Psychological impact of liver transplantation on children's inner worlds

We carried out an in-depth evaluation of psychosocial status in a sample of 18 children (mean age 6.8 yr, range 4.4-10.8 yr) who had suffered from severe liver disease and undergone orthotopic liver transplantation (OLT). Mean age at OLT was 3.4 yr. The assessment was psychoanalytically oriented and included individual sessions and testing procedures for children--the Children Apperception Test (CAT), the Weschsler Intelligence Scale for Children (WISC-R), the Weschsler Preschool and Primary Scale of Intelligence (WIPPSI), and the Human Figure Test--and a semi-structured interview with a separate questionnaire for parents. Patients were compared with an age- and gender-matched control group. The main findings in patients compared with controls were: IQ 91.6 (range 70-117) vs. 118 (range 94-135) (p<0.0001); immaturity of ego and drives (72.2% vs. 27.7%; p=0.018), fear of death (61.1% vs. 11.1%; p=0.04), anxiety of loss (50%, vs. 27.7%; p=NS), and depressive feelings (61.1% vs. 22.2%; p=0.04); a mild defect of body image (44.4% vs. 33.3%; p=NS) associated with recurrent representations of motionless (72.2% vs. 38.8%; p=NS) and inexpressive (88.8% vs. 16.6%; p<0.0001) human figures. Fantasies about OLT as a 'magic rebirth' or a 'body transformation' were detected in few patients (30%). Although a recurrent set of feelings, conflicts, and fantasies about OLT were expressed by children, individual specific psychological responses to this experience were often detected. In spite of the fact that approximately 50% of the parents mentioned emotional or behavioral disturbances of their child, only three parents were seriously concerned about this problem. The theme of transplantation was most often absent from communication between the child and their parents. Our results suggest that psychic 'working through' of the chronic liver disease and OLT experience is difficult for children. Further studies are necessary to verify whether changes of parental attitude to OLT as a 'family secret' may facilitate integration of the OLT experience in the child's personality development.

Long-term nutritional and neurodevelopmental outcome of liver transplantation in infants aged less than 12 months

BACKGROUND

Liver transplantation is established treatment for children with end-stage liver disease and has a 5-year survival rate of 80% to 85%, even in infants under 12 months. Long-term outcome in nutritional rehabilitation and normal development is unknown. This study aimed to prospectively evaluate growth and psychoneurologic performance of children who undergo liver transplantation in infancy.

METHODS

Twenty-five infants (18 girls, 7 boys) who underwent liver transplantation at less than 12 months of age (median age, 9 months) were evaluated for 4 years. Growth measurements were expressed as standard deviation scores (SDSs; mean +/- SEM), and psychoneurologic performance was assessed with the unrevised Griffiths Mental Ability Scales (normal range, 80-120).

RESULTS

Four children died during the study (4-year survival, 84%). The children were malnourished before transplantation (SDSs: weight, -1.9 +/- 0.2; midarm muscle area, -0.93 +/- 0.3; midarm fat area, -1.52 +/- 0.3; and height, -0.95 +/- 0.3). Nutritional rehabilitation for all parameters occurred within 12 to 24 months after transplantation, which was most significant for weight (-1.1 +/- 0.2, P = 0.001), midarm muscle area (0.74 +/- 0.3, P = 0.001), and midarm fat area (-0.44 +/- 0.3, P = 0.01). There was some improvement in height (-0.72 +/- 0.3, P = 0.14), which was not significant, although infants who were severely stunted before transplantation (mean height standard deviation score [SDS] -2.46) showed significant catch-up at 1 year after transplantation (mean height SDS -1.2, P = 0.003). Psychoneurologic scores were within normal limits before transplantation and were maintained for the 4-year follow-up period, although individual scores varied during this period. Improved nutritional status was associated with increased muscle bulk and subsequent improvement in motor scores from 90.6 at initial assessment to 97.3 at 4 years (P = 0.28). There was a temporary reduction in social skills and eye-hand coordination in the first year, which may have been an effect of the hospital environment or cyclosporine immunosuppression. Language abilities also regressed during the first year, possibly related to the effect of nasogastric tube feeding in delaying normal speech development.

CONCLUSIONS

Liver transplantation in infancy has not only a successful outcome but is also associated with long-term catch-up growth and nutrition and maintenance of normal development.