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以往曾报导50例胎儿阵发性室上心搏过速(PST),直至数年前,仍然认为胎儿能耐受这种心律不齐,但近期报导指出,PST可致胎儿及新生儿严重心功不全。另外,某些并无血型不合的严重水肿儿的死亡很可能由于心律不齐所致的心功不全。过去报导伴随PST的最高胎心率为300次/分(Hochberg等,1976)。胎心率持续超过230次/分时则胎儿处境危险(Vallerius与Jacobsen,1978)。毛地黄应该是胎儿PST的合适治疗,但妊娠期长期用药的效果尚无经验。地高辛可通过胎盘到达胎儿,并发现胎儿与母亲血内的药物浓度几乎一样
In the past, 50 cases of fetal paroxysmal supraventricular tachycardia (PST) were reported, and a few years ago, the fetus was still considered to be able to tolerate such arrhythmia. However, recent reports have pointed out that PST can cause serious heart attacks in the fetus and newborn Gong incomplete. In addition, some children with severe edema without blood group deaths are likely due to cardiac arrhythmia caused by heart failure. It has been reported in the past that the maximum fetal heart rate with PST is 300 beats per minute (Hochberg et al., 1976). Fetal heart rate continued to exceed 230 beats / minute when the fetus at risk (Vallerius and Jacobsen, 1978). Foxglove should be the appropriate treatment of fetal PST, but the effect of long-term use of pregnancy is not yet experience. Digoxin can reach the fetus through the placenta, and found that the drug concentration in the fetus and mother’s blood is almost the same