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AIM: To explore the prevalence and influencing factors of poor vision among 3 014 primary school students in Wucheng District, Jinhua City, in order to provide evidence for the intervention measures of poor vision.METHODS: Using a cross-sectional study, a self-designed questionnaire was done, including general conditions and influencing factors of vision. The international standard logarithmic visual acuity chart was used for visual acuity detection. The risk factors that were statistically significant among the single factor groups were used as independent variables for multivariate Logistic regression analysis.RESULTS: A total of 1 367 students with poor vision were detected, the detection rate was 45.36%, among which mild poor vision rare was 26.08%; moderate rate was 11.51%; and severe rate was 7.76%. Multivariate Logistic regression analysis showed that senior grades, parental myopia, daily insufficient sleep and outdoor activity, overuse of electronics or computers and no eye exercise were risk factors for poor vision.CONCLUSION: The rate of poor vision among the primary school students was severe, schools should take measures to improve and prevent students' poor vision by increasing outdoor activity time, correcting poor reading and writing posture, and reducing the time spent on electronic products.
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OBJECTIVE:To explore the effect of prophylactic use of vitamin B6 with chlorpheniramine on the adverse reactions in fundus fluorescein angiography (FFA). METHODS:326 patients with FFA were randomly divided into observation group and control group. Observation group was orally given Vitamin B6 tablet 10 mg 30 min before angiography+Chlorpheniramine maleate tablet 4 mg;control group was orally given Metoclopramide tablet 10 mg+Chlorpheniramine maleate tablet 4 mg. The occurrence time and incidence of adverse reactions in 2 groups were observed and correlation analysis was conducted. RESULTS:There was no significant difference in the occurrence time of adverse reactions between 2 groups(P>0.05);the incidence of adverse reactions in observation group was significantly lower than control group,the difference was statistically significant(P0.05). CONCLUSIONS:Prophylactic use of vitamin B6 with chlorphenir arnine can reduce the occurrence of adverse reactions in FFA.
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Objective To compare the changes in fibrinogen (Fib), C-reactive protein (CRP) and left atrial (LA) size between patients with atrial flatter (AFL) and those with atrial fibrillation (AF) to explore the relations among them. Methods We selected 53 AF patients (including 16 cases of paroxymal AF, 13 of persistent AF and 24 of permanent AF) and 18 patients with AFL; the control group consisted of 32 cases of sinus rhythm (SR). In all the patients, ECG or Horter and UCG were conducted; Fib and CRP were measured. The levels of the above indexes in AF group, AFL group and subgroups were compared with each other, and with those in the control group. Correlation analysis between CRP and LA size was made. Results Fib, CRP and LA size in AF group were significantly different from those in AFL and SR groups, but did not differ between the latter two groups. So did other parameters among the three groups. CRP in persistent AF and permanent AF differed significantly from that in AFL, SR and paraxymal AF. LA size in the groups of persistent AF differed from that in SR group, but there was no difference between those in persistent AF and AFL groups. LA size in permanent AF was significantly different from that in AF, AFL and SR. Positive significant linear correlations were found between CRP and LA size in AF (r=0.33). Conclusion Hypercoagulable state exists in AF; the AF. Positive correlation exists between LA size and inflammatory reaction; there is no hypercoagulable state in AFL.
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0.05). However, monocrotaline significantly increased WT% and WA% of pulmonary arterioles (WT:39.1%?2.8% vs 50.8%?3.1%, WA:51.2%?3.0% vs 74.5%?2.9%, P