Olsen T G, Hubert P R, Nycum L R
David Grant Medical Center, Travis Air Force Base, California, USA.
Obstet Gynecol. 2001 Nov;98(5 Pt 1):843-5. doi: 10.1016/s0029-7844(01)01585-x.
Analysis of serum beta-hCG aids diagnosis and treatment of intrauterine pregnancies, ectopic gestations, and gestational trophoblastic neoplasia. beta-hCG concentrations are specific for trophoblastic tissue, thus are rarely questioned.
An 18-year-old nullipara had bleeding and a positive beta-hCG. Ultrasound identified no pregnancy. She passed tissue and stopped bleeding. Serum beta-hCG remained elevated despite uterine curettage and three courses of methotrexate. Results of urine beta-hCG were negative, as was reference laboratory serum assay. A 31-year-old nullipara had a spontaneous abortion, but serum beta-hCG remained elevated. Uterine curettage found secretory endometrium, yet elevated serum beta-hCG persisted. Urine beta-hCG was negative, as was reference laboratory serum assay.
Patients with histories incongruent with serum beta-hCG findings should have urine beta-hCG analysis.
血清β-人绒毛膜促性腺激素(β-hCG)分析有助于诊断和治疗宫内妊娠、异位妊娠及妊娠滋养细胞肿瘤。β-hCG浓度对滋养层组织具有特异性,因此很少受到质疑。
一名18岁未生育女性出现阴道出血且β-hCG呈阳性。超声检查未发现妊娠迹象。她排出组织物后出血停止。尽管进行了刮宫术及三个疗程的甲氨蝶呤治疗,但血清β-hCG仍持续升高。尿β-hCG结果为阴性,参考实验室血清检测结果同样为阴性。一名31岁未生育女性发生自然流产,但血清β-hCG仍持续升高。刮宫术发现为分泌期子宫内膜,但血清β-hCG升高仍持续存在。尿β-hCG为阴性,参考实验室血清检测结果亦为阴性。
血清β-hCG检查结果与病史不符的患者应进行尿β-hCG分析。