Zech, N.H., Netzbandt, P. and Zech, H. (2005) Development of Severe Ovarian Hyperstimulation Syndrome after Inadvertent Stimulation with a Gonadotropin-Releasing Hormone Agonist and Human Menopausal Gonadotropin in a Pre-Existing Early Pregnancy. Fertility and Sterility, 84, 1745.
https://doi.org/10.1016/j.fertnstert.2005.05.069

has been cited by the following article:

• TITLE: Case Report of Ectopic Pregnancy during Controlled Ovarian Stimulation without Oocytes Harvested and Late Ovarian Hyperstimulation Syndrome

  AUTHORS: Hui Lin, Wen He, Jie Lv, Chanlin Han, Li Sun, Jianping Ou, Liuhong Cai

  KEYWORDS: In-Vitro Fertilization, Ectopic Pregnancy, Controlled Ovarian Stimulation, Gonadotropin-Releasing Hormone Agonist

  JOURNAL NAME: Advances in Reproductive Sciences, Vol.6 No.3, August 17, 2018

  ABSTRACT: Here we reported a rare case of misdiagnosed ectopic pregnancy (EP) due to unintended ovulation during controlled ovarian stimulation (COS) in GnRH agonist cycle, resulting in no oocytes harvested and late hyper-stimulation syndrome (OHSS). The patient was a 33-year old primary infertile woman due to male’s factors and underwent her second in vitro fertilization (IVF) cycle using GnRH agonist protocol, and no oocytes harvested on ovum picked-up (OPU) day. The start of gonadotropin usage was on day 8th of her period, and the P level increased rapidly and strangely high from day 8th after gonadotropin usage. The E2 level and follicles grew normally but finally no oocytes harvested. She was diagnosed as late ovarian hyper-stimulation syndrome (OHSS) 7 days after OPU. 20 days after OPU, no menstruation come and a positive urine test of hCG were reported. And the patient was diagnosed as EP by laparoscopy. In conclusion, rapidly increased P level, no oocyte retrieval and late onset of OHSS should be very important clues to diagnose this misdiagnosed EP.