CAJ | 학술논문

目的：观察健康孕晚期胎儿产前和产后主肺动脉血流量正常范围，探讨其可能的变化机制。方法按不同孕产阶段，将315例受检者分为三组，孕晚期（32～40周）为A组，产后1 d为B组，产后28 d为C组，分别测量主肺动脉的管径（the main pulmonary artery peak，DMPA）、速度时间积分（the velocity time integral，VTI）、流量（the main pulmonary artery flow， QMPA），将三组对比并进行统计学分析。结果健康孕晚期胎儿、产后1 d及产后28 d新生儿两两比较：主肺动脉的管径[孕晚期（0．694±0．087） cm，产后1 d为（0．805±0．050） cm，产后28 d为（0．910±0．050） cm]、速度时间积分、流量差异均有统计学意义（P＜0．05）。结论管径不随年龄增加需警惕主肺动脉发育不良等情况；流量增加显著，需警惕继发性肺动脉高压；流量增加不显著，需警惕引起肺血流量减少的原发性及继发性疾病。
목적：관찰건강잉만기태인산전화산후주폐동맥혈류량정상범위，탐토기가능적변화궤제。방법안불동잉산계단，장315례수검자분위삼조，잉만기（32～40주）위A조，산후1 d위B조，산후28 d위C조，분별측량주폐동맥적관경（the main pulmonary artery peak，DMPA）、속도시간적분（the velocity time integral，VTI）、류량（the main pulmonary artery flow， QMPA），장삼조대비병진행통계학분석。결과건강잉만기태인、산후1 d급산후28 d신생인량량비교：주폐동맥적관경[잉만기（0．694±0．087） cm，산후1 d위（0．805±0．050） cm，산후28 d위（0．910±0．050） cm]、속도시간적분、류량차이균유통계학의의（P＜0．05）。결론관경불수년령증가수경척주폐동맥발육불량등정황；류량증가현저，수경척계발성폐동맥고압；류량증가불현저，수경척인기폐혈류량감소적원발성급계발성질병。
Objective To observe the change in main pulmonary artery blood flow between fetuses in the third trimester and neonates , and study the normal range and the change mechanism , providing basis for the early identification of neonatal disease . Methods The 315 objects were divided into three groups , fetuses in the third trimester (32-40 weeks) in group A, one day after birth in the group B , 28 days after birth in the group C .DMPA, VTI, QMPA were recorded for statistical analysis .Results The differ-ences in DMPA(in the third trimester:(0.694 ±0.087) cm,one day after birth:(0.805 ±0.050) cm,28 days after birth:(0.910 ± 0.050)cm,VTI[in the third trimester:(10.245 ±1.016) cm,one day after birth:12.604 ±0.969 cm、28 days after birth:15.297 ± 1.129 cm]、QMPA [in the third trimester:(471.665 ±45.553) cm3/min,one day after birth:(857.730 ±76.584) cm3/min、28 days after birth:(1166.575 ±100.456) cm3/min)between the group A and group B, group B and group C, group A and group C were sta-tistically significant (P<0.05).Conclusions Attention should be paid to the pulmonary hypoplasia if the diameter of the main pul-manary does not increase following the age .Be cautious of secondary pulmonary hypertension if the blood flow increases so obviously and of other diseases if the blood flow does not increase normally .