Objective To evaluate the effect of Dermlin,an inorganic activity induced skin wound dressing,in combination with a nano-silver dressing,on chronic diabetic foot ulcer.Methods A total of 93 elderly diabetic patients with chronic foot ulcer were recruited and randomly assigned into the treatment group and the control group.In additional to routine systemic and topical treatment for both groups,the treatment group was given a combination of Dermlin and nano silver dressngs,while for the control group,iodophor gause was used to cover the ulcer.The two groups were compared on ulcer grading,wound healing time and positive rate of bacterial culture.Results The wound healing time in the treatment group was significantly shorter than that in the control group [(41.6±2.7) d vs.(61.9±2.9) d,t=-35.09,P=0.000].Positive rates of bacterial culture for the treatment group at admission,14 d after admission and 28 d after admission were 88.46％,23.07％ and 15.38％,respectively,in contrast to 88.89％,59.26％ and 40.74,respectively,for the control group at the same time points (x2 =0.01,6.88,7.34,P=0.065,0.008,0.006).The rate of effectiveness for the control group was 63.83％ (30/47),clearly lower than the 82.61％ for the treatment group (38/46) (x2=4.17,P=0.035).The patients' foot ulcers were graded using the Wagner system.In the treatment group,27 patients with grade 2 ulcers showed an 88.89％effectiveness rate (24/27),considerably higher than the rate of 67.86％ in the control group (18/28)(x2=4.60,P=0.032).For grade 3 ulcers,the effectiveness rate was 73.86％ (14/19) for the treatment group and 63.15％ for the control group (12/19),with no statistical difference between the two groups (x2=0.49,P=0.364).Conclusions The combination of Dermlin and Nanosilver can promote healing for grade 2 chronic diabetic foot ulcers,but has no obvious effect on grade 3 ulcers.

With basic medicine teaching faculty becoming younger,it is still in accordance with the traditional training mode about training the young teachers' experimental skills, which brings about some problems such as nonstandard basic operation, weak basic knowledge, lack of systematic skills training and relative lack of research.In practice,we strengthen the basic skills of young teachers through skills training and assessment, focus on the cultivation of young teachers' basic quality by paying attention to theoretical teaching skills and experimental skills; guide teachers to emphasize experimental skills through holding ex-perimental skills competition; promote teachers' experimental skills by integrating the subject research into experiment practice which proved that the experimental skills and teaching level of young teachers get sig-nificantly improved.

Recurrence of acute clinical symptoms in inflammatory bowel disease often leads to increase of unplanned readmission rate,thus the disease burden of patients and the shortage of medical resources are aggravated.This article reviews the summary in unplanned readmissions of inflammatory bowel disease pa-tients,influencing factors and risk prediction models aiming at providing a basis to early identify the risk of unplanned readmissions,formulate the nursing decision as early as possible and reduce the medical burden.