Variable Clinical Courses of Varicella Zoster Virus Infection-related or Vaccination-related Bone Marrow Failure.

We report 5 children with bone marrow failure (BMF) after primary varicella zoster virus (VZV) infection or VZV vaccination, highlighting the highly variable course. Two patients were treated with intravenous immunoglobulins; one had a slow hematologic recovery, and the other was rescued by allogeneic hematopoietic stem cell transplantation (HSCT). Of the 2 patients treated with immunosuppressive therapy with antithymocyte globulin and cyclosporine, one had a complete response, and the other was transplanted for nonresponse. One patient underwent a primary allograft. All patients are alive. This study demonstrated that VZV-associated BMF is a life-threatening disorder that often requires HSCT.

"More life and more days"-patient and care characteristics in a specialized acute pediatric palliative care inpatient unit.

Only a few acute hospital inpatient units dedicated to pediatric palliative care (PPC) patients exist today. Clinical data on the patients and care provided at specialized acute PPC inpatient units (PPCUs) are scarce. This study aims at describing patient and care characteristics on our PPCU to learn about the complexity and relevance of inpatient PPC. A retrospective chart analysis was performed on the 8-bed PPCU of the Center for Pediatric Palliative Care of the Munich University Hospital, including demographic, clinical, and treatment characteristics (487 consecutive cases; 201 individual patients; 2016-2020). Data were analyzed descriptively; the chi-square test was used for comparisons. Patients' age (1-35.5 years, median: 4.8 years) and length of stay (1-186 days, median 11 days) varied widely. Thirty-eight percent of patients were admitted repeatedly (range 2-20 times). Most patients suffered from neurological diseases (38%) or congenital abnormalities (34%); oncological diseases were rare (7%). Patients' predominant acute symptoms were dyspnea (61%), pain (54%), and gastrointestinal symptoms (46%). Twenty percent of patients suffered from > 6 acute symptoms, 30% had respiratory support incl. invasive ventilation, 71% had a feeding tube, and 40% had full resuscitation code. In 78% of cases, patients were discharged home; 11% died on the unit. CONCLUSION: This study shows the heterogeneity, high symptom burden, and medical complexity of the patients on the PPCU. The high dependency on life-sustaining medical technology points to the parallelism of life-prolonging and palliative treatments that is typical for PPC. Specialized PPCUs need to offer care at the intermediate care level in order to respond to the needs of patients and families. WHAT IS KNOWN: • Pediatric patients in outpatient PPC or hospices present with a variety of clinical syndromes and different levels of complexity and care intensity. • There are many children with life-limiting conditions (LLC) in hospitals, but specialized PPC hospital units for these patients are rare and poorly described. WHAT IS NEW: • Patients on a specialized PPC hospital unit show a high symptom burden and a high level of medical complexity, including dependency on medical technology and frequent full resuscitation code. • The PPC unit is mainly a place for pain and symptom management as well as crisis intervention, and needs to be able to offer treatment at the intermediate care level.

The Path Is Made by Walking-Mapping the Healthcare Pathways of Parents Continuing Pregnancy after a Severe Life-Limiting Fetal Diagnosis: A Qualitative Interview Study.

In Germany, research on experiences and care pathways of parents continuing pregnancy after a life-limiting fetal diagnosis is scarce. There are several recommendations but few structured programs. We aimed to explore experiences and needs of parents, reconstruct their care pathways, and identify requirements for a perinatal palliative care program. We conducted semi-structured interviews with 11 mothers and 9 fathers and analyzed data using the Saldaña's Coding Method. Codes were organized in templates to reconstruct care pathways. Pathways started with a suspicious finding prompting a referral to prenatal diagnostics. Parents experienced severe emotional distress during prenatal diagnostics due to scarce information, insensitiveness, and a perceived pressure towards abortion. As a result, they overlooked referrals to psychosocial counseling, generating a care gap. Most parents reached the decision to continue pregnancy without professional support. They then chose a trusted midwife or gynecologist as main caregiver during pregnancy. There were no regular referrals to palliative care, which mainly became relevant when the child survived. Our data indicate that a perinatal palliative care program requires early and comprehensive information, sensitivity, and a non-directive approach. Already existing support services need to be identified and connected through structured pathways, with a particular focus on midwives.

Participatory Development of a Modular Advance Care Planning Program in Pediatric Palliative Care (MAPPS).

CONTEXT: Decision-making in pediatric palliative care concerns mainly children without decision-making capacity. It has to balance the child's best interests, parental responsibility and the impact on the family system. OBJECTIVES: Advance care planning (ACP) supports decision making about future medical care. A consistent pediatric approach is still missing. This study aimed at developing a pediatric ACP program (pedACP) meeting specific needs of children, parents and professionals. METHODS: Bereaved parents of children with life-limiting conditions and professionals involved in pedACP participated. Employing the technique of constellation analysis, they collaboratively assigned content, actors, tools and warning notes about pedACP along a timeline. The researchers analyzed, systematized and translated these results into a pedACP program draft, which was revised by the participants. RESULTS: The participants' overall focus was on the children's quality of life and an individualized interdisciplinary communication process along the disease trajectory. The program was conceptualized in modular design with fixed modules at the beginning (to build a trustful relationship and frame the process) and at the end (to summarize results and prepare implementation). The main discussions are structured in flexible modules (About the child, Emergencies, Disease-specific scenarios and End of life care). General themes cover timing, communication, engaging children and structural issues. The participants appreciated the program's comprehensiveness and flexibility. CONCLUSION: Parents and professionals combined their perspectives on reflecting goals of care and the complexity of pedACP. They perceived the resulting modular program as suitable for meeting the individual needs of patients, families and professional stakeholders.

How to Open the Door: A Qualitative, Observational Study on Initiating Advance Care Discussions with Parents in Pediatric Palliative Care.

Context: Advance care discussions (ACD) between health care professionals (HCPs) and parents of children with a life-limiting disease are a core element of successful pediatric advance care planning (pACP). Yet, they are perceived as a challenging situation for all participants. Objectives: Our goal was to investigate the first step of ACD and identify its challenges and helpful communication strategies to develop a conversation guide for initiating the pACP process and structure the conversational opening. Methods: We performed a participant observation of 11 initial ACD and 24 interviews with 13 HCPs and 20 parents of 11 children cared for by 3 different palliative care teams in southern Germany. Qualitative data collection was supplemented by a questionnaire. Content analysis and conversation analysis were used for evaluation. Results: Parents and HCPs start the process with different expectations, which can lead to misunderstandings and confusion. HCPs gain parental cooperation when they express the purpose of the meeting clearly and early, provide structure and guidance, and give parents time to talk about their experiences and feelings. Addressing dying and death is hard for both sides and requires a sensitive approach. Conclusions: Initiating ACD is extremely challenging for all participants. HCPs and parents should clarify expectations and aims at the beginning of the conversation. Future research should focus on how HCPs can be trained for this task and how the right timing for introducing ACD to families can be identified. Clinical Trial Registration number 049-12.

"We Absolutely Had the Impression That It Was Our Decision"-A Qualitative Study with Parents of Critically Ill Infants Who Participated in End-of-Life Decision Making.

BACKGROUND: Guidelines recommend shared decision making (SDM) between neonatologists and parents when a decision has to be made about the continuation of life-sustaining treatment (LST). In a previous study, we found that neonatologists and parents at a German Level-III Neonatal Intensive Care Unit performed SDM to a variable but overall small extent. However, we do not know whether parents in Germany prefer an extent of more or sharing. METHODS: We performed a qualitative interview study with parents who participated in our first study. We analyzed the semi-structured interviews with qualitative content analysis according to Kuckartz. RESULTS: The participation in medical decision making (MDM) varied across cases. Overall, neonatologists and parents conducted SDM in most cases only to a small extent. All parents appreciated their experience independent of how much they were involved in MDM. The parents who experienced a small extent of sharing were glad that they were protected by neonatologists from having to decide, shielding them from a conflict of interest. The parents who experienced a large extent of sharing especially valued that they were able to fulfil their parental duties even if that meant partaking in a decision to forgo LST. DISCUSSION: Other studies have also found a variety of possibilities for parents to partake in end-of-life decision making (EOL-DM). Our results suggest that parents do not have a uniform preference for one specific decision-making approach, but rather different parents appreciate their individual experience regardless of the model for DM. CONCLUSION: SDM is apparently not a one-size-fits-all approach. Instead, neonatologists and parents have to adapt the decision-making process to the parents' individual needs and preferences for autonomy and protection. Therefore, SDM should not be prescribed as a uniform standard in medico-ethical guidelines, but rather as a flexible guidance for DM for critically ill patients in neonatology.

Identifying key elements for paediatric advance care planning with parents, healthcare providers and stakeholders: A qualitative study.

BACKGROUND: Although international guidelines recommend discussions about goals of care and treatment options for children with severe and life-limiting conditions, there are still few structured models of paediatric advance care planning. AIM: The study aimed at identifying key components of paediatric advance care planning through direct discussions with all involved parties. DESIGN: The study had a qualitative design with a participatory approach. Participants constituted an advisory board and took part in two transdisciplinary workshops. Data were collected in discussion and dialogue groups and analysed using content analysis. SETTING/PARTICIPANTS: We included bereaved parents, health care providers and stakeholders of care networks. RESULTS: Key elements were discussions, documentation, implementation, timing and participation of children and adolescents. Parents engage in discussions with facilitators and persons of trust to reach a decision. Documentation constitutes the focus of professionals, who endorse brief recommendations for procedures in case of emergencies, supplemented by larger advance directives. Implementation hindrances include emotional barriers of stakeholders, disagreements between parents and professionals and difficulties with emergency services. Discussion timing should take into account parental readiness. The intervention should be repeated at regular intervals, considering emerging needs and increasing awareness of families over time. Involving children and adolescents in advance care planning remains a challenge. CONCLUSION: A paediatric advance care planning intervention should take into account potential pitfalls and barriers including issues related to timing, potential conflicts between parents and professionals, ambiguity towards written advance directives, the role of non-medical carers for paediatric advance care planning implementation, the need to involve the child and the necessity of an iterative process.

Visualizing social support in home pediatric palliative care using network maps.

BACKGROUND: Home care of children with life-limiting diseases is extremely challenging for parents/family caregivers and their social environment. In order to gain new insights into the perspective of family caregivers, we employed digital Network Maps for the first time in the field of pediatric palliative care. AIM: To examine whether the use of Network Maps helps to identify and visualize significant members of the social support system and the quality of the relationship, as well as the main areas of life that are experienced as being supportive by each individual. DESIGN: The design was an integrated mixed methods study. Creation of Network Maps was assessed in conjunction with qualitative interviews. In addition, participants gave an oral feedback on the Network Maps themselves. SETTING/PARTICIPANTS: Parents of patients supported by a Specialized Home Pediatric Palliative Care team were eligible for inclusion. Forty-five parents were enrolled in the study. RESULTS: All mothers and fathers were able to generate their individual Network Map without problems. The composition of the support systems differed greatly, even between members of the same family. Parents named on average 11 supporting actors, mainly family members and health care professionals. Some relationships were perceived as helpful and stressful at the same time. CONCLUSION: Network Maps appear to be an appropriate tool for the collection, reconstruction, and assessment of the current support situation of parents of dying children. Further studies should examine the usefulness of Network Maps for the understanding of the caregivers' support needs and for the development of psychosocial interventional strategies by pediatric palliative care teams.

Allogeneic hematopoietic cell transplantation in Farber disease.

BACKGROUND: Farber disease (FD) is a rare, lysosomal storage disorder caused by deficient acid ceramidase activity. FD has long been considered a fatal disorder with death in the first three decades of life resulting either from respiratory insufficiency as a consequence of airway involvement or from progressive neurodegeneration because of nervous system involvement. Peripheral symptoms associated with FD, including inflammatory joint disease, have been described to improve relatively rapidly after hematopoietic cell transplantation (HCT). AIMS: To evaluate the disease-specific status and limitations in the long-term follow-up after HCT, investigate genotype/phenotype correlations and the benefit of allogeneic HCT in FD patients with nervous system involvement. PATIENTS AND METHODS: Transplant- and disease-related information of ten FD patients was obtained by using a questionnaire, physicians' letters and additional telephone surveys. ASAH1 gene mutations were identified to search for genotype/phenotype correlations. RESULTS: After mainly busulfan-based preparative regimens, all patients engrafted with one late graft loss. The inflammatory symptoms resolved completely in all patients. Abnormal neurologic findings were present pre-transplant in 4/10 patients, post-transplant in 6/10 patients. Mutational analyses revealed new mutations in the ASAH1 gene and a broad diversity of phenotypes without a genotype/phenotype correlation. With a median follow-up of 10.4 years, overall survival was 80% with two transplant-related deaths. CONCLUSION: Allogeneic HCT leads to complete and persistent resolution of the inflammatory aspects in FD patients. It appears to have no beneficial effect on progression of nervous system involvement. New mutations in the acid ceramidase gene were identified. A genotype/phenotype correlation could not be established.

Perinatal Palliative Care: A qualitative study evaluating the perspectives of pregnancy counselors.

BACKGROUND: A prenatal diagnosis of a life-limiting disease raises complex ethical, emotional, and medical issues. Studies suggest that 40%-85% of parents decide to continue the pregnancy if given the option of Perinatal Palliative Care. However, structured Perinatal Palliative Care programs are missing in many European countries. In Germany, parents have the right to free psychosocial support from pregnancy counseling services after the prenatal diagnosis of a life-limiting disease. AIM: We aimed to investigate whether German professional pregnancy counselors perceive the need for structured Perinatal Palliative Care and if so, how it should be conceived. DESIGN: This is a qualitative interview study with purposeful sampling. The interviews were analyzed with the coding method of Saldaña. SETTING/PARTICIPANTS: A total of 10 professionals from three different pregnancy counseling services participated in the study. RESULTS: The main topics raised by the professionals were as follows: (1) counseling and parental support during the decision-making process; (2) fragmented or missing support infrastructure for parents; and (3) challenges, hesitations, and barriers, particularly from the different stakeholders, regarding a Perinatal Palliative Care framework. They highlighted the importance of the integration of Perinatal Palliative Care in existing structures, a multi-professional approach, continuous coordination of care and education for all healthcare providers involved. CONCLUSION: A structured Perinatal Palliative Care program is considered as necessary by the pregnancy counselors. Future research should focus on (1) needs reported by concerned parents; (2) attitude and role of all healthcare providers involved; (3) strategies to include stakeholders in the development of Perinatal Palliative Care networks; and (4) outcome parameters for evaluation of Perinatal Palliative Care frameworks.

"Let's Bring Her Home First." Patient Characteristics and Place of Death in Specialized Pediatric Palliative Home Care.

CONTEXT: Specialized pediatric palliative home care (SPPHC) is the main pediatric palliative care structure in Germany. Detailed data on patient characteristics and care are sparse. Describing this population in terms of diagnoses and care needs is essential for further development of palliative care services for these patients. OBJECTIVES: We asked whether the population at our center 1) was representative compared with national mortality statistics; 2) showed differences in the clinical course among the four diagnostic categories established by the Association for Children with Terminal Conditions/Royal College of Paediatrics and Child Health; and 3) was different to published populations in pediatric palliative care regarding diagnoses, care, and place of death. METHODS: Retrospective single center chart analysis of 212 consecutive patients on SPPHC (2009-2015). RESULTS: Main International Statistical Classification of Diseases and Related Health Problems, 10th Revision groups were nervous system, congenital abnormalities, neoplasia, and metabolic disease, reflecting the mortality statistics for patients one to 20 years. Thirty-six percent of patients were assigned to ACT-3, 34% to ACT-4, 26% to ACT-1, and 4% to ACT-2. ACT-1 patients mostly needed high-intensity care for short durations, ACT-4 patients showed long survival times with mostly intermittent care. Seventy-five percent of patients showed nervous system involvement. Eighty-four percent died at home, 12% in hospital, and 4% in a hospice, with 96% dying at their preferred place. CONCLUSION: Our data on SPPHC show 1) significant differences between Association for Children with Terminal Conditions/Royal College of Paediatrics and Child Health groups in terms of care needs and survival; 2) a high prevalence of children with neurological problems; and 3) a large majority of children dying at home.

"Hope for the best, prepare for the worst": A qualitative interview study on parents' needs and fears in pediatric advance care planning.

BACKGROUND: Pediatric advance care planning is advocated by healthcare providers because it may increase the chance that patient and/or parent wishes are respected and thus improve end-of-life care. However, since end-of-life decisions for children are particularly difficult and charged with emotions, physicians are often afraid of addressing pediatric advance care planning. AIM: We aimed to investigate parents' views and needs regarding pediatric advance care planning. DESIGN: We performed a qualitative interview study with parents of children who had died from a severe illness. The interviews were analyzed by descriptive and evaluation coding according to Saldaña. SETTING/PARTICIPANTS: We conducted semi-structured interviews with 11 parents of 9 children. Maximum variation was sought regarding the child's illness, age at death, care setting, and parent gender. RESULTS: Parents find it difficult to engage in pediatric advance care planning but consider it important. They argue for a sensitive, individualized, and gradual approach. Hope and quality of life issues are primary. Parents have many non-medical concerns that they want to discuss. Written advance directives are considered less important, but medical emergency plans are viewed as necessary in particular cases. Continuity of care and information should be improved through regular pediatric advance care planning meetings with the various care providers. Parents emphasize the importance of a continuous contact person to facilitate pediatric advance care planning. CONCLUSION: Despite a need for pediatric advance care planning, it is perceived as challenging. Needs-adjusted content and process and continuity of communication should be a main focus in pediatric advance care planning. Future research should focus on strategies that facilitate parent engagement in pediatric advance care planning to increase the benefit for the families.

Medical indication regarding life-sustaining treatment for children: Focus groups with clinicians.

BACKGROUND: Decisions about medical indication are a relevant problem in pediatrics. Difficulties arise from the high prognostic uncertainty, the decisional incapacity of many children, the importance of the family, and conflicts with parents. The objectivity of judgments about medical indication has been questioned. Yet, little is known about the factors pediatricians actually include in their decisions. AIM: Our aims were to investigate which factors pediatricians apply in deciding about medical indication, and how they manage conflicts with parents. DESIGN: We performed a qualitative focus group study with experienced pediatricians. The transcripts were subjected to qualitative content analysis. SETTING/PARTICIPANTS: We conducted three focus groups with pediatricians from different specialties caring for severely ill children/adolescents. They discussed life-sustaining treatment in two case scenarios that varied according to diagnosis, age, and gender. RESULTS: The decisions about medical indication were based on considerations relating to the individual patient, to the family, and to other patients. Individual patient factors included clinical aspects and benefit-burden considerations. Physicians' individual views and feelings influenced their decision-making. Different factors were applied or weighed differently in the two cases. In case of conflict with parents, physicians preferred solutions aimed at establishing consensus. CONCLUSION: The pediatricians defined medical indication on a case-by-case basis and were influenced by emotional reasoning. In contrast to prevailing ethico-legal principles, they included the interests of other persons in their decisions. Decision-making strategies should incorporate explicit discussions of social aspects and physicians' feelings to improve the transparency of the decision-making process and reduce bias.

Listening to parents: The role of symptom perception in pediatric palliative home care.

OBJECTIVE: This study analyzes symptom perception by parents and healthcare professionals and the quality of symptom management in a pediatric palliative home care setting and identifies which factors contribute to a high quality of palliative and end-of-life care for children. METHODS: In this retrospective, cross-sectional study, parents were surveyed at the earliest three months after their child's death. All children were cared for by a specialized home pediatric palliative care team that provides a 24/7 medical on-call service. Questionnaires assessed symptom prevalence and intensity during the child's last month of life as perceived by parents, symptom perception, and treatment by medical staff. The responses were correlated with essential palliative care outcome measures (e.g., satisfaction with the care provided, quality-of-life of affected children and parents, and peacefulness of the dying phase). RESULTS: Thirty-eight parent dyads participated (return rate 84%; 35% oncological disorders). According to parental report, dyspnea (61%) and pain (58%) were the dominant symptoms with an overall high symptom load (83%). Pain, agitation, and seizures could be treated more successfully than other symptoms. Successful symptom perception was achieved in most cases and predicted the quality of symptom treatment (R 2, 0.612). Concordant assessment of symptom severity between parents and healthcare professionals (HCPs) improved the satisfaction with the care provided (p = 0.037) as well as the parental quality-of-life (p = 0.041). Even in cases with unsuccessful symptom control, parents were very satisfied with the SHPPC team's care (median 10; numeric rating scale 0-10) and rated the child's death as highly peaceful (median 9). Significance of the results: The quality and the concordance of symptom perception between parents and HCPs essentially influence parental quality-of-life as well as parental satisfaction and constitute a predictive factor for the quality of symptom treatment and palliative care.

Pediatric advance care planning from the perspective of health care professionals: a qualitative interview study.

BACKGROUND: Pediatric advance care planning differs from the adult setting in several aspects, including patients' diagnoses, minor age, and questionable capacity to consent. So far, research has largely neglected the professionals' perspective. AIM: We aimed to investigate the attitudes and needs of health care professionals with regard to pediatric advance care planning. DESIGN: This is a qualitative interview study with experts in pediatric end-of-life care. A qualitative content analysis was performed. SETTING/PARTICIPANTS: We conducted 17 semi-structured interviews with health care professionals caring for severely ill children/adolescents, from different professions, care settings, and institutions. RESULTS: Perceived problems with pediatric advance care planning relate to professionals' discomfort and uncertainty regarding end-of-life decisions and advance directives. Conflicts may arise between physicians and non-medical care providers because both avoid taking responsibility for treatment limitations according to a minor's advance directive. Nevertheless, pediatric advance care planning is perceived as helpful by providing an action plan for everyone and ensuring that patient/parent wishes are respected. Important requirements for pediatric advance care planning were identified as follows: repeated discussions and shared decision-making with the family, a qualified facilitator who ensures continuity throughout the whole process, multi-professional conferences, as well as professional education on advance care planning. CONCLUSION: Despite a perceived need for pediatric advance care planning, several barriers to its implementation were identified. The results remain to be verified in a larger cohort of health care professionals. Future research should focus on developing and testing strategies for overcoming the existing barriers.

Specialized home palliative care for adults and children: differences and similarities.

OBJECTIVE: To compare the provision of specialized home palliative care (SHPC) by the adult and pediatric SHPC teams at the Munich University Hospital. METHODS: All patients treated by one of the SHPC teams and their primary caregivers were eligible for the prospective nonrandomized survey. We analyzed the demographics, the underlying diseases, duration and impact of SHPC on symptom control and quality of life (QOL) as well as the caregivers' burden and QOL. RESULTS: Between April 2011 and June 2012, 100 adult and 43 pediatric patients were treated consecutively; 60 adults (median age, 67.5 years; 55% male) and 40 children (median age, 6 years, 57% male) were included in the study. Oncologic diseases were dominant only in the adult cohort (87 versus 25%, p<0.001). The median period of care was higher in the pediatric sample (11.8 versus 4.3 weeks; NS). Ninety-five percent of adult and 45% of pediatric patients died by the end of the study (p<0.001), 75% and 90% of them at home, respectively. The numbers of significant others directly affected by the patient's disease was higher in children (mean 3.4 versus 1.2; p<0.001). The QOL of adult patients and children (p<0.05 for both), as well as of their primary caregivers (p<0.001 for both) improved during SHPC, while the caregivers' burden was lowered (p<0.001 for both). CONCLUSIONS: Our results show important differences in several clinically relevant parameters between adults and children receiving SHPC. This should assist in the development of age-group specific SHPC concepts that effectively address the specific needs of each patient population.

Comparison of horse and rabbit antithymocyte globulin in immunosuppressive therapy for refractory cytopenia of childhood.

Refractory cytopenia of childhood is the most common subtype of myelodysplastic syndrome in children. In this study, we compared the outcome of immunosuppressive therapy using horse antithymocyte globulin (n=46) with that using rabbit antithymocyte globulin (n=49) in 95 patients with refractory cytopenia of childhood and hypocellular bone marrow. The response rate at 6 months was 74% for horse antithymocyte globulin and 53% for rabbit antithymocyte globulin (P=0.04). The inferior response in the rabbit antithymocyte globulin group resulted in lower 4-year transplantation-free (69% versus 46%; P=0.003) and failure-free (58% versus 48%; P=0.04) survival rates in this group compared with those in the horse antithymocyte globulin group. However, because of successful second-line hematopoietic stem cell transplantation, overall survival was comparable between groups (91% versus 85%; P=ns). The cumulative incidence of relapse (15% versus 9%; P=ns) and clonal evolution (12% versus 4%; P=ns) at 4 years was comparable between groups. Our results suggest that the outcome of immunosuppressive therapy with rabbit antithymocyte globulin is inferior to that of horse antithymocyte globulin. Although immunosuppressive therapy is an effective therapy in selected patients with refractory cytopenia of childhood, the long-term risk of relapse or clonal evolution remains. (ClinicalTrial.gov identifiers: NCT00662090).

Hematopoietic stem cell transplantation in children and young adults with secondary myelodysplastic syndrome and acute myelogenous leukemia after aplastic anemia.

Secondary myelodysplastic syndrome and acute myelogenous leukemia (sMDS/sAML) are the most serious secondary events occurring after immunosuppressive therapy in patients with aplastic anemia. Here we evaluate the outcome of hematopoietic stem cell transplantation (HSCT) in 17 children and young adults with sMDS/sAML after childhood aplastic anemia. The median interval between the diagnosis of aplastic anemia and the development of sMDS/sAML was 2.9 years (range, 1.2 to 13.0 years). At a median age of 13.1 years (range, 4.4 to 26.7 years), patients underwent HSCT with bone marrow (n = 6) or peripheral blood stem cell (n = 11) grafts from HLA-matched sibling donors (n = 2), mismatched family donors (n = 2), or unrelated donors (n = 13). Monosomy 7 was detected in 13 patients. The preparative regimen consisted of busulfan, cyclophosphamide, and melphalan in 11 patients and other agents in 6 patients. All patients achieved neutrophil engraftment. The cumulative incidence of grade II-IV acute graft-versus-host disease (GVHD) was 47%, and that of chronic GVHD was 70%. Relapse occurred in 1 patient. The major cause of death was transplant-related complication (n = 9). Overall survival and event-free survival at 5 years after HSCT were both 41%. In summary, this study indicates that HSCT is a curative therapy for some patients with sMDS/sAML after aplastic anemia. Future efforts should focus on reducing transplantation-related mortality.