Application of situational simulation drill in training of nurses on prevention and treatment of venous thromboembolism / 中国实用护理杂志

Objective:To investigate the effect of situational simulation drill in nurses training on prevention and treatment of venous thromboembolism (VTE).Methods:Totally 120 nurses in 1-3 years from a tertiary general hospital were selected to participate in the training for prevention and treatment of venous thromboembolism. They were divided into intervention group and control group according to the number of single and double packet ward. A total of 62 nurses in the single wards were selected as the intervention group, and a total of 58 nurses in the double wards were selected as the control group. The control group and the intervention group were trained on the prevention and treatment of venous thromboembolism by traditional teaching method and scenario simulation drill, and the effect was evaluated by Kirkpatrick Model.Results:After training, intervention group training object theory examination score, operation assessment score, clinical nursing work assessment score, and nurses ability to scale score (83.79±6.85), (87.00±4.57), (7.90±0.62), (79.03±8.24) respectively, were higher than the control group (80.67±7.90), (84.02±4.70), (7.21±0.72), (70.86±11.59), the score comparison difference was statistically significant ( t values were -3.660-5.670, P < 0.05); The satisfaction of the training object to the teaching plan, teaching content and teaching form in the intervention group was 88.71% (55/62), 87.10% (54/62) and 87.10% (54/62), which were all higher than the control group 74.14% (43/58), 72.41% (42/58) and 68.97% (40/58), with statistically significant differences ( χ2 values were 4.250, 4.038, 5.804, P<0.05). Conclusion:The application of situational simulation drill in the nursing training of prevention and treatment of VTE is helpful to improve the theoretical skills and clinical work ability of nurses in the prevention and treatment of VTE, and to increase the satisfaction of nurses with the training.

Synthesis of a nano-antibacterial inorganic filler containing a quaternary ammonium salt with long chain alkyl and its effect on dental resin composites / 华西口腔医学杂志

<p><b>OBJECTIVE</b>This study aimed to synthesize a novel nano-antibacterial inorganic filler that contains a quaternary ammonium salt with long chain alkyl and to report the antibacterial property of dental resin composites.</p><p><b>METHODS</b>A novel nano-antibacterial inorganic filler that contains a quaternary ammonium salt with long chain alkyl was synthesized based on previous research. The antibacterial property of the filler was measured. The surface of the novel nano-antibacterial inorganic filler was modified by a coupling agent to achieve a good interfacial bonding between the filler and the resin matrix. Infrared spectrum analysis was carried out. The modified novel nano-antibacterial inorganic fillers were then incorporated into the dental resin matrix. The dispersion of the fillers was observed and compared with those incorporated into Tetric N-Ceram, a commercial resin composite, under a scanning electron microscope. Streptococcus mutans was used in testing the antibacterial property of the dental resin composites.</p><p><b>RESULTS</b>A quaternary ammonium salt with a long chain alkyl was successfully grafted onto the surface of nano-silica particles. The novel nano-antibacterial inorganic filler that contains quaternary ammonium salt with a long chain alkyl showed stronger antibacterial efficacy than the antibacterial inorganic filler that contains quaternary ammonium salt with a short chain alkyl. The modified novel antibacterial inorganic fillers displayed a homogeneous dispersion in the resin composite bulk and combined closely with the resin matrix, similar to the Tetric N-Ceram. The resin composites that contain novel antibacterial inorganic fillers showed stronger antibacterial effect on Streptococcus mutans compared with the control group.</p><p><b>CONCLUSION</b>The novel nano-antibacterial inorganic filler that contains a quaternary ammonium salt with long chain alkyl showed a strong antibacterial property. It also exhibited good compatibility with the dental resin matrix after undergoing coupling treatment.</p>

Study on synthesis on a novel nano-antibacterial inorganic filler and its antibacterial property / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To synthesize a novel nano-antibacterial inorganic filler and provide a new way to give dental composite resin antibacterial property.</p><p><b>METHODS</b>Quaternary ammonium iodide N,N,N-trimethyl-3-(trimethoxysilyl) propan-1-aminium iodide were organically synthesized firstly and then the N,N,N-trimethyl-3-(trimethoxysilyl) propan-1-aminium iodide was grafted to the nano-silica particle to synthesize the antihacterial inorganic fillers nano-silica particle grafted with quaternary ammonium salt. All the products were analyzed and identified by infrared spectrum analysis. Then Streptococcus mutans were chosen as experimental object to analysis the antibacterial property of nanoantibacterial inorganic filler.</p><p><b>RESULTS</b>Quaternary ammonium salt was grafted to the surface of nano-silica particles successfully by infrared spectrum analysis. Compared with the control group, the nano-silica particle grafted with quaternary ammonium salt had a strong bactericidal effect on Streptococcus mutons (P < 0.01).</p><p><b>CONCLUSION</b>The nano-silica particle grafted with quaternary ammonium salt has a strong antibacterial property and could be used to improve dental composite resin antibacterial property.</p>