Effectiveness of participatory-action-research to put in practice evidence at a nursing onco-hematology unit.

The aim was to evaluate the effectiveness of evidence implementation through participatory-action research (PAR). A prospective quasi-experimental design with two non-equivalent and non-concurrent groups (2006 and 2008) was adopted. The research was conducted at the bone marrow transplant unit of a tertiary-level Spanish hospital. To put the evidence in practice, PAR was adopted as an "intervention studied". The dependent variables were: professional performance and patient outcomes (psycho-emotional area and adverse effects). In total, 125 patients were recruited (1(st) period=56; 2(nd) period=69). The results in the second period show significant improvements in professional performance in terms of the quality of the registers of signs and symptoms. In the psycho-emotional area, the psycho-social adjustment improved significantly; without caregiver burden or satisfaction showing any clear tendencies. Among the adverse effects, catheter-related thrombosis and catheter-related infection improved significantly; there were no significant differences in the level of pain or mucositis. Through the PAR, evidence could be put in practice and the outcomes under analysis could be improved.