Reprint of: Long-Term Survivorship after Hematopoietic Cell Transplantation: Roadmap for Research and Care

Linking the Center for International Blood and Marrow Transplant Research Registry to the California Cancer Registry and California Hospital Patient Discharge Data

Advances in hematopoietic cell transplantation (HCT) have substantially improved patient survival, increasing the importance of studying outcomes and long-term adverse effects in the rapidly growing population of HCT survivors. Large-scale registry data from the Center for International Blood and Marrow Transplant Research (CIBMTR) are a valuable resource for studying mortality and late effects after HCT, providing detailed data reported by HCT centers on transplantation-related factors and key outcomes. This study was conducted to evaluate the robustness of CIBMTR outcome data and assess health-related outcomes and healthcare utilization among HCT recipients. We linked data from the CIBMTR for California residents with data from the population-based California Cancer Registry (CCR) and hospitalization information from the California Patient Discharge Database (PDD). In this retrospective cohort study, probabilistic and deterministic record linkage used key patient identifiers, such as Social Security number, ZIP code, sex, birth date, hematologic malignancy type and diagnosis date, and HCT type and date. Among 22,733 patients registered with the CIBMTR who underwent autologous or allogeneic HCT for hematologic malignancy between 1991 and 2016, 89.0% were matched to the CCR and/or PDD (n = 17,707 [77.9%] for both, n = 1179 [5.2%] for the CCR only, and n = 1342 [5.9%] for the PDD only). Unmatched patients were slightly more likely to have undergone a first autologous HCT than an allogeneic HCT (12.6% versus 9.0%), to have a larger number of missing linkage identifiers, and to have undergone HCT prior to 2010. Among the patients reported to the CIBMTR who matched to the CCR, 85.7% demonstrated concordance of both hematologic malignancy type and diagnosis date across data sources. This linkage presents unparalleled opportunities to advance our understanding of HCT practices and patient outcomes.

Social support as a moderator of healthcare adherence and distress in long-term hematopoietic cell transplantation survivors

BACKGROUND

Treatment with hematopoietic cell transplantation (HCT) has potentially severe effects on physical and psychosocial functioning. Poor social support has been linked with physical morbidity and mortality as well as psychological distress in HCT survivors. This study tested a theory-driven hypothesis that social support buffers adverse effects of health stressors of comorbidities and graft-versus-host disease (cGVHD) on distress and adherence to recommended healthcare among long-term HCT survivors.

METHODS

This cross-sectional study analyzed baseline data from a randomized controlled trial in adult survivors 3-18 years post-HCT. Data included medical records and patient-reported outcomes including cancer and treatment distress (CTXD), healthcare adherence (HCA), comorbidity index, cGVHD, ENRICHD Social Support Instrument (ESSI), Social Activity Log, and Health Self-Efficacy. We tested hypothesized models for HCA and CTXD using blocked hierarchical linear regressions.

RESULTS

Among the 781 HCT survivors completing baseline assessment, 38% had > 3 comorbidities, 8% had moderate-severe cGVHD, 30% reported low social support, 30% reported elevated distress, and 49% reported low healthcare adherence. Social support and self-efficacy were directly related to both adherence and distress. Regression models supported the hypothesized moderated relationships for distress but not for healthcare adherence.

CONCLUSIONS

The two tested models confirm that the health stressors of comorbidities and cGVHD are moderated by better social support and self-efficacy in their associations with lower distress but without moderating effects for healthcare adherence.

IMPLICATIONS FOR CANCER SURVIVORS

Social support and self-efficacy confer protective benefits on healthcare adherence and psychological distress. Interventions are needed that focus on maintaining social networks or finding new networks if necessary.

CLINICAL TRIAL REGISTRATION NUMBER

NCT00799461.

Parental Posttraumatic Growth After Pediatric Hematopoietic Stem Cell Transplant

Little is known about the development of posttraumatic growth among parents of children with serious advanced disease. The purpose of this study is to describe parental posttraumatic growth 100 days after pediatric stem cell transplant. This is a cross-sectional, descriptive study of 24 parents, approximately 100 days after their children received stem cell transplant. Participants reported environmental, personal, and disease characteristics and completed measures of distress, coping, rumination, and posttraumatic growth. Evidence of parental posttraumatic growth was described in each of 5 dimensions (relating to others, new possibilities, personal strength, spiritual change, and appreciation of life). Posttraumatic growth was positively associated with parental distress, disengagement coping, and rumination measures (r = 0.44-0.47, P < .05). Appreciation of life demonstrated the strongest associations with distress and rumination (r = 0.53-0.61, P < .01). Curvilinear relationships were observed for the association of distress, disengagement coping, and involuntary engagement with posttraumatic growth (P < .05). Study results highlight opportunities for palliative care nurses and clinicians to facilitate opportunities to support parent posttraumatic growth during treatment for children's advanced disease.

Parent Caregiving Experiences and Posttraumatic Growth Following Pediatric Hematopoietic Stem Cell Transplant

Background: Parents of children recovering from hematopoietic stem cell transplant (HSCT) experience significant distress due to unpredictable and potentially life-threatening complications. Distress is heightened by intensive caregiving parents provide the child during the first 100 days after HSCT. Management of distress and adaptation to caregiving responsibilities may be enhanced if parents find benefit in their experiences through posttraumatic growth (PTG), yet little is known about how parents' experiences after HSCT foster PTG. This study aimed to explore how parents experience caregiving and PTG 100 days after children's HSCT. Methods: Thirty-one parents completed semi-structured interviews ∼100 days after children received HSCT. Results: Four major themes emerged from the data to describe parent experiences after HSCT: (1) psychosocial and healthcare contextual factors; (2) cognitive, affective, and social support reactions to HSCT; (3) problem-based, emotion-based, and cognitive coping strategies; and (4) PTG. Discussion: Results increase the understanding of how parents' experiences and caregiving responsibilities contribute to PTG. These findings may guide future research to understand how these experiences influence PTG. Nurses are integral to the parents' experiences. Future work should focus on nursing interventions that enhance positive reinterpretation of parents' experiences after their children's HSCT.

The haematopoietic stem cell transplant survivors' sense of coherence about their experiences: a qualitative study

PURPOSE

To explore the experiences of haematopoietic stem cell transplant survivors attending the long-term follow-up unit.

METHODS

A descriptive qualitative study of eight post-haematopoietic stem cell transplant survivors which were interviewed guided by the sense of coherence framework. Thematic analysis was used to extract meaningful explication of the survivors' experiences.

RESULTS

The post-haematopoietic stem cell transplant survivors interviewed were five females and three males with age ranging from 27 to 67 years and had the stem cell transplant between 4 and 20 years. Three main themes emerged from the data including (1) comprehending the experience, (2) acknowledging the meaningfulness of the experience and (3) managing threats to a new life after the transplant. The experiences of post-haematopoietic stem cell transplant survivors were initially difficult but they were able to make re-adjustments to their new life by reconciling with their new identity, refocusing on meaningful activities, strengthening their resilience and navigating the healthcare system.

CONCLUSION

In spite of the difficulties faced by the survivors, they were able to face the challenges and made adjustment in a positive light by focusing on the valuable aspects of their experiences. Health care practitioners need to continually support them throughout their survivorship journey no matter how long it takes. Any long-term follow-up unit is a step in the right direction to meet the complex needs of the survivors by integrating and adapting clinical guidelines into routine oncologic and transplant care so that survivors are not lost in transition following treatment.

Sexual function in long-term male lymphoma survivors after high-dose therapy with autologous stem-cell transplantation

Reduced sexual function may have negative implications on health related quality of life among lymphoma survivors. A national cross-sectional study among long-term lymphoma survivors after high-dose therapy with autologous stem-cell transplantation auto-SCT treated during 1987-2008 was conducted in 2012-2014. The current study explored sexual functioning among these survivors. Sixty-six percent (n = 159) of eligible men with complete questionnaire data were included, median age was 55 years. The Brief Sexual Function Inventory (BSFI) was used to assess sexual function and sexual satisfaction, compared with age-matched controls. In addition, sexual problems were defined based on predetermined cutoff values for BSFI domain scores. Sexual drive and erections firm enough to have sexual intercourse were reported to be present only a few days or less last month among 30% and 41% of survivors, respectively. Sexual satisfaction was reported by 39% of survivors. The survivors had significantly lower scores on all BSFI domains and an increased risk of problems with sexual drive and erection compared with controls. In multivariable models, cardiovascular disease was significantly associated with worse erectile function, while age > 55 years, chronic fatigue, and physical inactivity were significantly associated with lower sexual functioning overall. Chronic fatigue and anxiety were related to lower sexual satisfaction.