Frequency, Characteristics and Risk Factors of Aggressive Incidents in a Paediatric Rehabilitation Setting: A Prospective Survey.

Aim: Aggressive incidents (AI) are a serious concern in health care and can have negative effects on the physical and emotional well-being staff. This study aimed to determine frequency, characteristics and risk factors for aggressive behavior.Methods: AI were recorded during six months by the staff in a pediatric rehabilitation clinic using the evaluation form for AI (EVA). Patients were divided into the study group (patients who were involved in AI) and controls.Results: 14/105 (13%) of patients were involved in 79 AI. 0.44 AI per day occurred. Most often AI occurred on Mondays and 98% included physical, 22% verbal aggression. Most frequent target (43%) were nurses, followed by therapists (31.6%).Significant risk factors for AI were: previous aggressive behavior (p = .038), lower cognitive and higher mobility sub-scores in the WeeFIM. Conclusion: Findings emphasize the magnitude of AI in pediatric rehabilitation and thus the importance of implement preventive strategies.Abbreviations: ADL: Activity of daily living; AI: Aggressive Incidents; CFCS: Communication Function Classification System; EVA: Recording aggressive incidents (Erfassung von Aggressionsereignissen); GMFCS: Gross Motor Function Classification System; MACS: Manual Ability Classification System; SOAS-R: Staff Observation of Aggression Scale-Revised; WeeFIM: Functional Independence Measure for Children; WPV: Workplace violence.

Bcl-2 transfected HaCaT keratinocytes resist apoptotic signals of ceramides, tumor necrosis factor alpha and 1 alpha, 25-dihydroxyvitamin D(3).

During the last few years increasing evidence has shown that sphingolipid metabolites are highly bioactive compounds that play important roles in cellular regulation. The induction of ceramide signalling in primary human keratinocytes and HaCaT keratinocytes has recently been demonstrated using 1 alpha,25-dihydroxyvitamin D(3). The data obtained indicate that approximately one-third of the proapoptotic effect of 1 alpha,25-dihydroxyvitamin D(3) is mediated by an intracellular ceramide increase induced via tumor necrosis factor. expression and autocrine stimulation of sphingomyelin hydrolysis. In the present study the role of bcl-2 in this process was investigated. HaCaT keratinocytes were transfected with bcl-2 and the effects of C(2)-ceramide, tumor necrosis factor alpha and 1 alpha,25-dihydroxyvitamin D(3) on HaCaT keratinocytes stably overexpressing bcl-2 were determined. Apoptosis was measured by detection of soluble DNA-histone complexes using the ELISA technique. In situ analysis of apoptotic cells was also carried out by detecting phosphatidylserine flip using the annexin V method and by detecting DNA fragmentation using the TUNEL assay. The results obtained showed that apoptosis induced by C(2)-ceramide, tumor necrosis factor alpha or 1 alpha,25-dihydroxyvitamin D(3) occurred in a vector-transfected clone but not in a bcl-2-transfected HaCaT clone. This indicates the important role of bcl-2 in the regulation of ceramide-mediated signalling pathways in human keratinocytes and supports the involvement of ceramide as a signalling molecule in 1 alpha,25-dihydroxyvitamin D(3)-induced biological responses.