Egge K, Lyng G, Maltau J M
Acta Ophthalmol (Copenh). 1980 Apr;58(2):231-6. doi: 10.1111/j.1755-3768.1980.tb05715.x.
The present study shows the frequency and severity of retinal haemorrhages in 200 newborn, of which 100 were delivered spontaneously, 51 delivered by vacuum extractor and 49 by forceps. The incidence of retinal haemorrhages was highest in the vacuum group (50%), lowest in the forceps group (16%), while the spontaneously delivered children showed an incidence of 41%. The incidence of severe retinal haemorrhages was about five times higher in the vacuum group than in both forceps and control groups. The authors propose a quantitative grading of the haemorrhages. The purpose has been to obtain a better way of relating the haemorrhages to mode of delivery and probably also to relate retinal haemorrhages to possible brain damage.
本研究显示了200名新生儿视网膜出血的频率和严重程度，其中100名是自然分娩，51名是通过真空吸引器助产，49名是通过产钳助产。视网膜出血的发生率在真空吸引器组最高（50%），在产钳组最低（16%），而自然分娩的儿童发生率为41%。严重视网膜出血的发生率在真空吸引器组比产钳组和自然分娩组高出约五倍。作者提出了对出血进行定量分级的方法。目的是找到一种更好的方法，将出血情况与分娩方式联系起来，并且可能还将视网膜出血与可能的脑损伤联系起来。
