RESUMEN
AlM: To investigate the refractive status of the preschool children in Xiantao, Hubei Province in order to find out the abnormal refraction error beyond the physiological range. METHODS: ln this cross - sectional study, we investigated preschool children in kindergartens and the scattered ones were 12 716 ( 25 432 eyes ) ranging from 6mo ~ 6 years old. 1 581 children ( 3 162 eyes ) were diagnosed ametropia by Suresight refractive screening instrument, which were confirmed again after mydriasis optometry. RESULTS: The incidence rate of ametropia in preschool children in Xiantao was 12. 4%, and statistics showed no significant difference between boys and girls (P>0. 05), but had differences of morbility rate among each age group (P CONCLUSlON: The incidence rate of ametropia decreases with age increasing in the preschool children from 6mo~6 years old, which imply preschool children should have mydriasis optometry in order to find out amblyopia and other congenital eye disease.
RESUMEN
<p><b>OBJECTIVE</b>To investigate the protective effects of puerarin against myocardial injury in patients with hypertension during perioperational period.</p><p><b>METHODS</b>Thirty-four patients with hypertension underwent general anesthesia were randomly divided into the control group and the puerarin group, 500mg puerarin was given to the puerarin group 1hr before anesthesia induction by venoclysis and to the control group, normal saline was given instead. The concentration of serum cardiac troponin I (cTnI) and isoenzyme of creatine kinase containing M and B subunits (CK-MB) were measured before anesthesia induction and 2 hrs after operation respectively.</p><p><b>RESULTS</b>The serum concentration of cTnI and CK-MB were insignificantly different in the two groups before induction, the two indexes increased in different degrees (P <0.01) 2 hrs after operation in both groups, but the increments in the puerarin group were significantly lower than those in the control group (P< 0.01).</p><p><b>CONCLUSION</b>Stress of operation and anesthesia could induce myocardial injury in patients with hypertension, which can be prevented by puerarin medicated during perioperational period.</p>