近年用羟苄麻黄硷治疗早产,并研究其对孕妇和新生儿的影响.盐酸羟苄麻黄硷是一种用于阻止早产的药物,是β-肾上腺素能兴奋剂,主要作用于β-肾上腺素能受体.通过周期的磷酸腺甙(AMP)调节钠、钾转移和钙离子的交换使子宫平滑肌松弛,副作用对孕妇的有心动过速、呼吸增加、震颤、高血糖、低血钾和烦躁、恶心、心悸等.严重的合并症是酸中毒和肺水肿.对胎儿主要是心动过速.作者用羟苄麻黄硷治疗37例早产孕妇.根据预产期、子宫和胎儿大小及超声波检查估计孕龄<36周需延迟分娩.临产规定为规律宫缩(间隔<10′,持续30″)伴随进行性宫颈扩张或宫颈已扩张>3cm In recent years, hydroxybes ephedrine treatment of preterm birth, and to study its impact on pregnant women and newborns. Hydroxybenzene ephedrine hydrochloride is a drug used to prevent premature birth, β-adrenergic stimulants, the main role in the β-adrenal gland Supranuclear can activate the smooth muscle relaxation of the uterus through the periodic AMP (adenosine monophosphate) (AMP) regulate the exchange of sodium, potassium and calcium ions, side effects on pregnant women with tachycardia, increased respiration, tremor, hyperglycemia, hypokalemia and Irritability, palpitations, etc. Serious comorbidities are acidosis and pulmonary edema. The fetus is mainly tachycardia. The authors used hydroxybenzene ephedrine treatment of 37 cases of premature pregnant women. According to the expected date of birth, uterus and fetal size and ultrasound examination estimated pregnancy Childbirth is delayed at <36 weeks of labor. Probability is defined as regular contractions (interval <10 ’for 30 ") with progressive cervical dilatation or cervical dilatation> 3 cm