Sandberg K, Sjöqvist B A, Hjalmarson O, Olsson T
Acta Paediatr Scand. 1986 May;75(3):470-6. doi: 10.1111/j.1651-2227.1986.tb10232.x.
With the aim of extending previous studies showing differences in lung function after birth between infants delivered vaginally (VD) and by Caesarean section (CS) we investigated lung volumes, ventilation, efficiency of ventilation, and lung mechanics in 24 healthy, full term infants with no clinical signs of respiratory disease, 12 after VD and 12 after CS. Measurements were made on two occasions: 2 and 26 hours after birth. At 2 hours no differences in any measured quantity were found between the groups. The only difference found 24 hours later was that the average thoracic gas volume (TGV), was lower in infants after CS than after VD. The difference in functional residual capacity was, however, not significant. This means that the difference in TGV, previously also found by other workers, did not affect the ventilated air space. Our results do not support the theory of general inferiority in lung performance after birth in healthy, full term infants without respiratory disease delivered by CS.
为了扩展先前的研究，该研究表明经阴道分娩（VD）和剖宫产（CS）的婴儿出生后肺功能存在差异，我们调查了24名无呼吸道疾病临床症状的健康足月婴儿的肺容积、通气、通气效率和肺力学，其中12名经阴道分娩，12名剖宫产。在出生后2小时和26小时两个时间点进行测量。在2小时时，两组之间在任何测量指标上均未发现差异。24小时后发现的唯一差异是，剖宫产婴儿的平均胸腔气体容积（TGV）低于经阴道分娩的婴儿。然而，功能残气量的差异并不显著。这意味着先前其他研究人员也发现的TGV差异并未影响通气的空气空间。我们的研究结果不支持剖宫产出生的无呼吸道疾病的健康足月婴儿出生后肺功能普遍较差的理论。
