Puranik B M, Kurhade G A, Kaore S B, Patwardhan S A, Kher J R
Department of Physiology, Government Medical College, Nagpur.
Indian J Physiol Pharmacol. 1995 Apr;39(2):135-9.
Peak expiratory flow rates (PEFR) were measured in 60 pregnant women aged 20-28 years (average 24 yrs) height between 130-160 cm (average 154.5 cm), each month beginning from 3rd month of gestation and also 8-10 weeks postpartum using, Wright's Peak Flow Meter. The PEFR declined from 329.12 +/- 4.40 lpm in 3rd month to 286.22 +/- 3.81 lpm in 9th month of gestation and increased to 347.86 +/- 2.93 lpm in postpartal period. A similar, declining trend is also observed in other Indian studies. However, the values are lower than those observed in Europeans. Also no change in PEFR during pregnancy was observed in an European study. The PEFR in our study regressed at a rate of 6.68 lpm/month of gestation and 5.49 lpm/kg increase in weight throughout pregnancy. The correlation with forced vital capacity (FVC) and forced expiratory volume in first second (FEV1) is non-significant throughout pregnancy. The anaemic pregnant women showed lower PEFR when compared with PEFR of nonanaemic pregnant women, but showed a similar declining trend throughout pregnancy.
使用赖特峰流速仪，对60名年龄在20 - 28岁（平均24岁）、身高在130 - 160厘米（平均154.5厘米）的孕妇进行了呼气峰值流速（PEFR）测量。从妊娠第3个月开始，每月测量一次，产后8 - 10周也进行测量。PEFR从妊娠第3个月的329.12 +/- 4.40升/分钟下降到第9个月的286.22 +/- 3.81升/分钟，产后又增加到347.86 +/- 2.93升/分钟。在其他印度研究中也观察到了类似的下降趋势。然而，这些数值低于欧洲人的观测值。在一项欧洲研究中，妊娠期间未观察到PEFR有变化。在我们的研究中，整个孕期PEFR以每月6.68升/分钟的速度下降，体重每增加1千克下降5.49升/分钟。整个孕期，PEFR与用力肺活量（FVC）和第1秒用力呼气量（FEV1）的相关性不显著。与非贫血孕妇的PEFR相比，贫血孕妇的PEFR较低，但在整个孕期呈现出相似的下降趋势。
