Grieving Children' Death in an Intensive Care Unit: Implementation of a Standardized Process.

Background: The grief that accompanies witnessing the death of a child puts health care professionals at risk of secondary trauma, burnout, and turnover when left unaddressed. Objective: Support staff well-being and promote resiliency. Methods: Descriptive implementation of a structured, peer-to-peer bereavement support program for intensive care unit (ICU) staff at a tertiary children's hospital. Results: Thirty-five virtual sessions were held over the period of one year.Through these sessions, participants shared perspectives and normalized reactions, and explored potential coping strategies. Post-session feedback surveys demonstrated the negative impact of a death on the personal or work life of ICU staff. Additionally, nearly all reported some level of burnout. Conclusions: The sessions were feasible and positively impacted staff coping and well-being. Barriers and facilitators to session attendance, as well as suggestions for improvement, were also explored. Implications for practice and future research are discussed. No clinical trial registration is applicable.

Poldip2 knockdown inhibits vascular smooth muscle proliferation and neointima formation by regulating the expression of PCNA and p21.

Polymerase delta-interacting protein 2 (Poldip2) is a multi-functional protein with numerous roles in the vasculature, including the regulation of cell apoptosis and migration, as well as extracellular matrix deposition; however, its role in VSMC proliferation and neointimal formation is unknown. In this study, we investigated the role of Poldip2 in intraluminal wire-injury induced neointima formation and proliferation of vascular smooth muscle cells in vitro and in vivo. Poldip2 expression was observed in the intima and media of human atherosclerotic arteries, where it colocalized with proliferating cell nuclear antigen (PCNA). Wire injury of femoral arteries of Poldip2+/+ mice induced robust neointimal formation after 2 weeks, which was impaired in Poldip2+/‒ mice. PCNA expression was significantly reduced and expression of the cell cycle inhibitor p21 was significantly increased in wire-injured arteries of Poldip2+/‒ animals compared to wild-type controls. No difference was observed in apoptosis. Downregulation of Poldip2 in rat aortic smooth muscle cells significantly reduced serum-induced proliferation and PCNA expression, but upregulated p21 expression. Downregulation of p21 using siRNA reversed the inhibition of proliferation induced by knockdown of Poldip2. These results indicate that Poldip2 plays a critical role in the proliferation of VSMCs.