Post-Traumatic Stress Symptoms in Hematopoietic Stem Cell Transplant Recipients

Hematopoietic stem cell transplantation (HCT) is an intensive and potentially curative therapy for patients with hematologic malignancies. Patients admitted for HCT experience a prolonged, isolating hospitalization and endure substantial physical and psychological symptoms. However, there is a paucity of research on the impact of HCT on post-traumatic stress disorder (PTSD) symptoms in transplant recipients. This secondary analysis of 250 patients who underwent autologous and allogeneic HCT examined PTSD using the PTSD Checklist-Civilian measured at 6 months after HCT. We used the Functional Assessment of Cancer Therapy-Bone Marrow Transplant, and the Hospital Anxiety and Depression Scale to assess quality of life (QOL) and depression and anxiety symptoms at the time of admission for HCT, week 2 during hospitalization, and 6 months after HCT. We used multivariate regression models to assess factors associated with PTSD symptoms. Given collinearity between QOL, depression, and anxiety symptoms, we modeled these separately. The rate of clinically significant PTSD symptoms at 6 months after HCT was 18.9% (39/206). Participants with clinically significant PTSD symptoms experienced hypervigilance (92.3%), avoidance (92.3%), and intrusion (76.9%) symptoms. Among patients without clinically significant PTSD symptoms, 24.5% had clinically significant hypervigilance symptoms and 13.7% had clinically significant avoidance symptoms. Lower QOL at time of HCT admission (B = -0.04, P = .004) and being single (B = -3.35, P = .027) were associated with higher PTSD symptoms at 6 months after HCT. Higher anxiety at time of HCT admission (B = 1.34, P <.001), change in anxiety during HCT hospitalization (B = 0.59, P =.006), and being single (B = -3.50, P = .017) were associated with higher PTSD symptoms at 6 months. In a separate model using depression, younger age (B = -0.13, P = .017), being single (B = -3.58, P = .018), and higher baseline depression symptoms were also associated with higher PTSD symptoms at 6 months (B = 0.97, P < .001). Approximately one fifth of patients undergoing HCT experience clinically significant PTSD symptoms at 6 months after transplantation. The prevalence of hypervigilance and avoidance symptoms are notable even among patients who do not have clinically significant PTSD symptoms. Interventions to prevent and treat PTSD symptoms in HCT recipients are clearly warranted.