F-ERG監(jiān)測正常嬰兒及ROP患兒視網(wǎng)膜功能發(fā)育的應(yīng)用研究
[Abstract]:Flash electroretinogram (f-ERG) reflects the comprehensive response of the retina to light stimulation. It is a clinical evaluation of the entire retinal function status of ganglion cells. It has a good diagnostic significance for extensive retinopathy. Premature infants and low birth weight infants are born with systemic organ function. Poor retinal function development is not mature. With the development of perinatal medicine and pediatrics, the survival rate of premature infants and low birth weight infants is obviously improved. The incidence of retinopathy of prematurity (ROP) in premature infants is also rising in China. Good visual quality is an important content of healthy development of infants. Production and ROP lesions affect the maturation of retinal function. It is urgent to understand the development of retina function in premature infants and children with ROP. Infants can not express visual abnormalities actively, and mild visual dysfunction can not be found by common examination. F-ERG can be performed in infants' sleep state, with objectivity, noninvasive, reproducibility and other advantages. Therefore, it is an objective tool for evaluating the function of the retina objectively. It has been reported that retina function in prematurely and ROP children is lagging behind normal foot months. However, there is no ERG response to ROP in children with different months of age, with no fundus lesions and normal feet, and the longitudinal observation of him with age. The developmental trend of retinal ERG is reported in comparison with adults.
Objective: To observe the influence of preterm birth factors and mild ROP lesions on retinal functional development in infants and to compare the retinal function development in children with ROP, prematurely prematurely and full-term infants.
Methods: 1 fundus examination: from November 2008 to October 2009, the newborns of the fundus examination were conducted in our center. (1) the birth weight of the newborn was less than 2500g (2) the birth weight was 37 weeks to 42 weeks, the body weight was more than 2500g, and the length of the body was more than 47cm. There was no malformation and no malformation. Living born newborns of the disease (3) adults aged 23~44 years old and healthy volunteers without ocular and other parts of the body. Direct or indirect ophthalmoscope and Retcam II wide area digital retina detection system were used to carry out fundus examination. Through fundus examination, the experimental group was divided into ROP (+) group, ROP (-) group, normal foot month control group and In healthy adult control group, the fundus of.ROP (+) group was followed up until the lesion subsided and peripheral retina vascularization.
2 ERG examination: the ROP (+) group, the ROP (-) group and the normal foot month control group were corrected for 40 weeks (equivalent to 0 months), 53 weeks (equivalent to 3 months) and 65 weeks (equivalent to 6 months) for f-ERG examination, and the healthy adult control group was examined once by f-ERG.
3 the results of the examination were recorded and the SPSS13.0 system software was used for statistical analysis. All groups were tested for normality and variance homogeneity, which were normal distribution and homogeneity of variance, and the two groups were compared by variance analysis LSD.
Results: 1 fundus examination results: in ROP (+) group, 30 cases (male 20, female 10), 17 cases of binocular ROP and 3 case of single eye ROP, 8 cases of ROP in the female baby, 2 cases of ROP. and ROP (+) in 55 eyes, among which 34 eyes were 3 zone I, 21 eyes were 3 District II, and all the diseases were less than.3 months in the range of 20. In the.ROP (-) group, 30 cases (male 22, female 8) were not detected in the group of 60 eyes. 15 cases in the normal foot moon control group were 30 eyes (9 men and 6 women). The adult control group had 30 eyes (5 and 10 cases) in the adult control group, and the eye fundus lesions were not found.
2 ERG examination results
Comparison of 2.1 ROP (+) group with normal term infant control group
0 months: there was no significant difference between the a wave latency and the OPs wave number of the cone reaction between the two groups. There was no statistical significance (P value =0.1150.01). The rod reaction, the a wave amplitude of the cone reaction, the visual pole reaction, the b wave latency and amplitude of the cone reaction, the maximum mixing reaction a, the b wave latency and amplitude, and the OPs amplitude waves were obviously different (P values were 0.01), and were statistically significant. Significance;
3 months: the maximum mixing reaction a, b wave, the b wave latency of the cone reaction and the number of OPs wave numbers have no significant difference (P value is 0.01), and there is no statistical significance. The b wave of the optic rod reaction, the a wave latency and amplitude of the cone reaction, the maximum mixing reaction a, the b wave and the cone reaction b wave amplitude, and the OPs wave amplitude are obviously different (all P values are 0.01), having series The significance of learning.
6 months: two groups of rod reaction b wave, cone reaction a, b wave latency and amplitude, the maximum mixing reaction a, b wave amplitude and OPs wave number, no significant difference (P value is 0.01), no statistical significance. The maximum mixed reaction a, b wave latency and OPs wave amplitude difference is more obvious (P value is 0.01), with statistical significance.
Comparison of 2.2 ROP (-) group with normal term infant control group
0 months: there was no significant difference between the two groups of cones a, the latency of B wave and the number of OPs wave numbers (the P value was 0.01). There was no statistical significance. The cone reaction a, the amplitude of B wave, the b wave of the optic rod reaction, the maximum mixing reaction a, the b wave latency and amplitude, and the significant difference of the OPs wave amplitude (P 0.01), had statistical significance.
3 months: the maximum mixed reaction a wave between the two groups, the cone reaction a, the latency and amplitude of the b wave and the number of OPs wave numbers (P value is 0.01), no statistical significance. The b wave of the optic rod reaction, the maximum mixing reaction b wave latency and amplitude, and the amplitude difference of OPs wave are obvious (P values are 0.01), and have statistical significance.
6 months: the rod reaction b wave, the maximum mixing reaction and the cone reaction a, the amplitude of the b wave, the cone reaction a, the b wave latency and the OPs wave number are not different (P value is 0.01), and there is no statistical significance. The b wave of the rod reaction, the maximum mixing reaction a, the b wave latency and OPs wave amplitude (P values are 0.01), have statistical significance.
Comparison between the 2.3 ROP (+) group and the ROP (-) group
0 months: two groups of cones a, b wave incubation period, OPs wave number and amplitude no significant difference (P value is 0.01), no statistical significance. Cone reaction a, b wave amplitude; the rod reaction b wave, the maximum mixed reaction a, b wave latency and amplitude difference is more obvious (P value is 0.01). Latent period extension, amplitude decrease, with statistical significance.
3 months: the a wave incubation period and b wave amplitude of the maximum mixing reaction between the two groups; the cone reaction a, the latency and amplitude of the b wave and the OPs wave number (P value 0.01) are not statistically significant. The b wave latency and amplitude of the optic rod reaction, the A wave amplitude and the b wave latent period of the maximum mixing reaction, and the amplitude difference of the OPs wave are more obvious (P 0.01). The period is prolonged and the amplitude is reduced, with statistical significance.
6 months: the b wave of the two groups, the maximum mixing reaction and the cone reaction a, the latency and amplitude of B wave and the number of OPs wave numbers were not different (P values were both 0.01). There was no statistically significant difference in amplitude of.OPs wave (P value 0.01). The latency period was prolonged, and the amplitude was reduced, with statistical significance.
Comparison between the 2.4ROP (+) group and the adult control group
Two groups of 0 months, 3 months b wave latency of rod reaction, maximum mixed reaction and cone reaction a, B latency difference is obvious (P value is 0.01); 6 months, there is no significant difference (P value 0.01).0 months, 3 months and 6 months, the pole reaction b wave amplitude of 13.01%, 23.96% and 44.71% of adults, a wave amplitude 24.37%, 42.20, 42.20, 42.20, 42.20, 42.20 % and 72.08%, B waves 22.13%, 42.81% and 69.03%; cone reaction a wave amplitude 32.69%, 48.50% and 67.75%, B waves 26%, 42.02% and 58.70%; OPs wave amplitude, respectively, to adults 15.01%, 23.66% and 30.03%., respectively.
Comparison between the 2.5 ROP (-) group and the adult control group
Two groups of 0 months, 3 months b wave latency of rod reaction, maximum mixed reaction and cone reaction a, B latency difference is obvious (P value is 0.01); 6 months, there is no significant difference (P value 0.01).0 months, 3 months and 6 months, the pole reaction b wave amplitude of 15.91%, 28.35% and 44.57% of adults, a wave amplitude 33.05%, 49.49, 49.49, 49.49, 49.49, 49.49 % and 61.63%, B waves 30.19%, 45.56% and 69.66%; cone reaction a waves 40.67%, 52.52% and 64.19%, B waves 31.17%, 43.10% and 57.78%; OPs wave amplitude reached 13.22%, 26.13%, and 35.29%. in adults, respectively.
2.6 longitudinal comparison of normal term group and adult control group
In the two groups, the latency of B wave in 0 months and 3 months, the maximum mixed reaction and the cone reaction a, the difference in the latency of B was obvious (P value was 0.01); 6 months, there was no obvious difference in the latency of each wave (all P values were 0.01).0 months, 3 months and 6 months, and the amplitude of the b wave of the rod reaction reached 26.80%, 33.80% and 45.43% in adults and the amplitude of a wave of the maximum mixing reaction reached adult. 41.90%, 53.50% and 69.81%, B waves 35.90%, 54.95% and 73.36%; the a wave amplitude of the cone reaction reaches 53.45%, 59.70% and 67.26% in adults, and the B waves are 37.54%, 50.26% and 63.90%; the amplitude of the OPs wave reaches the 17.96%, 30.83%, and 39.08%. of the adult, respectively.
Conclusion: 1 preterm delivery and ROP lesions all prolong the latency of ERG reaction, decrease the amplitude, especially the rod response and Ops. Preterm and ROP lesions have an effect on the retinal function.
With the regression of ROP lesion and the development of premature infants, the latency and amplitude of ERG were similar to those of full-term infants except Ops at 6 months.
There is a great difference between the ERG and the adult after the birth of 3 feet, and the latency of each reaction is close to the adult level at 6 months, but the amplitude of the amplitude is still lower than that of the adult.ERG, and the amplitude of the amplitude is still lagging behind the incubation period.
4 F-ERG is an appropriate method to examine the function of the retina in infants.
【學(xué)位授予單位】:河北醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2010
【分類號(hào)】:R774.1
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