ABSTRACT
Objective:To design a replaceable corneal scaler and explore its effect on improving the positive detection rate of corneal bacteria and the cure rate of patients with infectious keratitis.Methods:Totally 100 patients with infectious keratitis treated in the Eye&Ent Hospital of Fudan University in Shanghai from June 2020 to October 2021 were conveniently selected as the application object, 50 patients from June 2020 to January 2021 were selected as the control group, and 50 patients from February 2021 to October 2021 were selected as the experimental group. The control group used the traditional corneal scalpel for corneal scraping, and the experimental group used the replaceable corneal scalpel for corneal scraping. The positive detection rate of bacteria, the cure rate of patients as of the date of data collection, the comfort status of patients and the operation difficulty score of medical staff were compared between the two groups.Results:The 28 cases (56%) were positive in the experimental group, and 30 cases (60%) were cured as of the date of data collection; 16 cases (32%) were positive in the control group and 18 cases (36%) were cured as of the date of data collection. The difference between the two groups was statistically significant ( χ2=-2.47, -2.20, all P<0.05). The score of comfort in the experimental group was (83.92 ± 6.40) and that in the control group was (54.04 ± 10.69). The difference between the two groups was statistically significant ( t=17.14, P<0.01). The operation difficulty score of medical staff in the experimental group was (1.46 ± 0.54) and that of medical staff in the control group was (3.24 ± 0.72). The difference between the two groups was statistically significant ( t=-13.50, P<0.01). Conclusions:The use of replaceable corneal scalpel can not only improve the positive detection rate of patients, improve the treatment effect of patients, improve the comfort and satisfaction of patients, but also improve the work efficiency of medical staff and reduce the operational risk of medical staff, so as to improve the real professional value of medical staff.
ABSTRACT
Objective To observe the effect of local curettage combined with ointment in fistula applying in refractory apical fistula.Methods 56 cases of patients with refractory apical fistula one month after faultless root cannal therapy divided into group A and B by lottery,with 28 cases in each group.Local curettage combined with ointment in fistula applying in group A,and no processing applying in group B.One year fellow up was given to every patient to compare the effect between the two groups.Results All the 28 cases of patients with refractory apical fistu-la were recovering in three months.The improvement rate was 100%,recovery rate 100%,and the mean time of fistula disappearing was (0.5 ±0.1)months,time of shadow around root tip disappearing (2.5 ±0.7)months.Four cases in group B were improved in three months,three cases in six months and one case in nine months,with two cases recove-ring.The improvement rate was 28.57%,recovery rate was 7.14%,and the mean time of fistula disappearing was (5.0 ±0.7)months,time of shadow around root tip disappearing (9.4 ±1.0)months.The improvement rate in group A was higher than that in group B (χ2 =33.749,P<0.05),recovery rate in group A was higher than that in group B (χ2 =49.727,P<0.05).The mean time of fistula disappearing in group A was shorter than that in group B (t=3.081,P<0.05),mean time of shadow around root tip disappearing in group A was shorter than that in group B (t=5.042,P<0.05).Conclusion It was effective to apply local curettage combined with ointment in fistula applying in refractory apical fistula,and it is worthy of clinical popularization.