Svenningsen L, Lindemann R, Eidal K, Jensen O
Acta Obstet Gynecol Scand. 1987;66(2):165-9. doi: 10.3109/00016348709083041.
Fifty clinically indicated vacuum extractions were studied to evaluate a possible relationship between neurobehavioral abnormality, retinal hemorrhages and the tractive force used for delivery. A Vacuum Extractor Recorder (Type SF 30, Knick), was used to measure the forces necessary for delivery of the head. Infants delivered by the use of extensive tractive force showed no greater incidence of neuropathology than those delivered with less tractive force. The retinal hemorrhages were equally distributed among the infants, irrespective of the tractive force applied or the neurobehavioral assessment. The implication is that retinal hemorrhages cannot be used to evaluate the extent of cerebral influence after birth and that the main cause of neurobehavioral abnormality is the condition leading to the use of the vacuum extractor (VE).
对50例临床指征为需使用真空吸引术的病例进行了研究，以评估神经行为异常、视网膜出血与分娩时所用牵引力之间的可能关系。使用了一台真空吸引记录器（SF 30型，尼克斯公司）来测量娩出头部所需的力。使用较大牵引力娩出的婴儿，其神经病理学发生率并不高于使用较小牵引力娩出的婴儿。无论施加的牵引力或神经行为评估结果如何，视网膜出血在婴儿中分布均匀。这意味着视网膜出血不能用于评估出生后脑影响的程度，并且神经行为异常的主要原因是导致使用真空吸引器（VE）的状况。
