Ahuja G L, Willoughby M L, Kerr M M, Hutchison J H
Br Med J. 1969 Sep 27;3(5673):743-5. doi: 10.1136/bmj.3.5673.743.
Nine out of 232 infants on whom the vacuum extractor was employed developed subaponeurotic haemorrhage and two of these infants died. In a further 78 infants born by vacuum extraction, all of whom received intramuscular vitamin K(1), four sustained subaponeurotic haemorrhage and one died. This type of haemorrhage was not encountered in over 12,000 infants born by other methods. Its relationship to vacuum extraction was found to be significantly more frequent when the thrombotest level was 10% or below of normal adult activity. It is suggested that infants born by vacuum extraction and with a thrombotest level of 10% or below might be protected from subaponeurotic haemorrhage by the transfusion of fresh frozen plasma.
在使用真空吸引器的232例婴儿中，有9例发生了帽状腱膜下出血，其中2例婴儿死亡。在另外78例通过真空吸引分娩的婴儿中，所有婴儿均接受了肌肉注射维生素K1，有4例发生帽状腱膜下出血，1例死亡。在超过12,000例通过其他方法分娩的婴儿中未发现这种类型的出血。当凝血酶试验水平为正常成人活性的10%或更低时，发现其与真空吸引的关系明显更频繁。有人提出，对于通过真空吸引分娩且凝血酶试验水平为10%或更低的婴儿，输注新鲜冰冻血浆可能预防帽状腱膜下出血。
