Hagay Z J, Mazor M, Leiberman J R, Piura B
Acta Obstet Gynecol Scand. 1986;65(5):513-5. doi: 10.3109/00016348609157398.
Marked decrease in fetal heart rate variability during labor was observed in a term fetus, borne by a mother with severe hypocalcemia due to idiopathic hypoparathyroidism and nutritional vitamin D deficiency. During the period of decreased baseline variability, fetal scalp pH was normal. A marked increase in fetal heart rate variability was observed within 5 minutes of intravenous administration of 1 gram calcium gluconate to the parturient. It seems that the recognition of the effect of maternal hypocalcemia on baseline fetal heart rate variability is important for accurate interpretation of fetal monitor tracing.
在一名足月胎儿分娩过程中，观察到其心率变异性显著降低。该胎儿的母亲患有特发性甲状旁腺功能减退症和营养性维生素D缺乏导致的严重低钙血症。在基线变异性降低期间，胎儿头皮pH值正常。在给产妇静脉注射1克葡萄糖酸钙后5分钟内，观察到胎儿心率变异性显著增加。看来，认识到母亲低钙血症对胎儿心率基线变异性的影响对于准确解读胎儿监护描记图很重要。
