Bland R D, Bressack M A, McMillan D D
Am J Obstet Gynecol. 1979 Oct 1;135(3):364-7. doi: 10.1016/0002-9378(79)90706-3.
To test the prevailing concept that drainage of fetal lung liquid begins after birth, we measured extravascular lung water content of 47 fetal rabbits born at term gestation, with or without prior labor. Rabbits born after labor, either vaginally or operatively, had less water in their lungs than those delivered by cesarean section without preceding labor; there was no difference in lung water content between rabbits born vaginally or operatively after labor. These results suggest that reduction in the volume of fetal lung liquid in rabbits normally begins before birth and depends on the experience of labor, not the mode of delivery.
为了验证胎儿肺液在出生后才开始排出这一普遍观点，我们测量了47只足月妊娠出生的胎兔的血管外肺含水量，这些胎兔有的经过了分娩，有的没有。经阴道或手术分娩的胎兔，其肺内的水分比未经分娩直接剖宫产出生的胎兔少；经阴道或手术分娩的胎兔之间，肺含水量没有差异。这些结果表明，兔胎儿肺液量的减少通常在出生前就开始了，并且取决于分娩经历，而非分娩方式。
