子痫前期是指孕20周后出现高血压和尿蛋白量≥0.3g/24h,伴或不伴多器官受损。大多数子痫前期发生在妊娠20周以后和/或分娩后48h内。表现为高血压和蛋白尿等典型临床表现[1]。然而,有些子痫前期并不出现上述典型表现,也不在上述时间段内出现,这些病例称为不典型子痫前期[2]。患者在妊娠20周以前或分娩48h以后发病,出现子痫前期症状、体征和实验室检查特征,但缺乏典型的高血压和蛋白尿。这些患者的临床表现可以根据子痫前期的发病机制解 Preeclampsia refers to the emergence of hypertension and urinary protein after 20 weeks of pregnancy ≥ 0.3g / 24h, with or without multiple organ damage. Most preeclampsia occurs within 20 weeks of gestation and / or within 48 hours of delivery. The performance of hypertension and proteinuria and other typical clinical manifestations [1]. However, some of the pre-eclampsia does not appear the typical performance, nor in the above period of time, these cases are called atypical preeclampsia [2]. The patient developed symptoms 20 weeks before or 48 hours after childbirth, presenting with symptoms, signs and laboratory tests of preeclampsia but lacking typical hypertension and proteinuria. The clinical manifestations of these patients can be based on the pathogenesis of preeclampsia