Buck R H, Joubert S M, Norman R J
Department of Chemical Pathology, University of Natal Medical School, Durban, Congella, Republic of South Africa.
Fertil Steril. 1988 Nov;50(5):752-5. doi: 10.1016/s0015-0282(16)60310-2.
The value of a single serum progesterone (P) assay in the diagnostic work-up of suspected ectopic pregnancy was investigated in 89 patients with ectopic pregnancy and 27 patients with incomplete abortion. Reference values for P in the blood were obtained from 77 patients with normal intrauterine pregnancies in the first trimester. With the use of a discriminatory level of 63 nmol/l (20 ng/ml), sensitivity of 92%, specificity of 84%, positive predictive index of 90%, and negative predictive index of 87% were achieved. Addition of pelvic ultrasound further improved the diagnostic accuracy. It is concluded that serum P measurement offers a valuable adjunct to existing methods of diagnosis of ectopic pregnancy.
对89例异位妊娠患者和27例不全流产患者进行了研究,以探讨单次血清孕酮(P)检测在疑似异位妊娠诊断检查中的价值。从77例孕早期宫内妊娠正常的患者中获取了血液中P的参考值。使用63 nmol/l(20 ng/ml)的鉴别水平,灵敏度为92%,特异性为84%,阳性预测指数为90%,阴性预测指数为87%。盆腔超声检查的加入进一步提高了诊断准确性。结论是,血清P检测为现有的异位妊娠诊断方法提供了有价值的辅助手段。