Two cases of polycystic ovary syndrome with onset of severe ovarian hyperstimulation syndrome following controlled ovarian stimulation with aromatase inhibitors for fertility preservation before breast cancer treatment

Taiwan J Obstet Gynecol. 2021 Sep;60(5):931-934. doi: 10.1016/j.tjog.2021.07.028.

Abstract

Objective: The risks of ovarian hyperstimulation syndrome (OHSS) involve high estrogen (E2) levels. We report two breast cancer patients with polycystic ovarian syndrome who underwent fertility preservation and had severe OHSS; their E2 levels were lowered using aromatase inhibitors (AI).

Case reports: A 36-year-old woman underwent controlled ovarian stimulation (COS) with AI and cryopreserved 10 blastocysts. She was hospitalized with OHSS (E2 = 139.1 pg/mL). She improved with infusion alone. A 31-year-old woman underwent COS with AI and cryopreserved 8 blastocysts. She was hospitalized for OHSS (E2: 429 pg/mL). Her vascular endothelial growth factor (VEGF) levels were high (62 pg/mL) at 8 days after the procedure. She needed hospitalization for 9 days. The planned adjuvant therapy was delayed for a week in both cases.

Conclusion: Elevated VEGF levels should be considered as a risk factor of OHSS even if E2 levels are low with AI treatment.

Keywords: Aromatase inhibitors; Estrogens; Fertility preservation; Ovarian hyperstimulation syndrome; Polycystic ovary syndrome.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Aromatase Inhibitors / adverse effects
  • Aromatase Inhibitors / therapeutic use*
  • Breast Neoplasms / drug therapy
  • Female
  • Fertility Agents, Female / therapeutic use*
  • Fertility Preservation / methods*
  • Fertilization in Vitro
  • Humans
  • Infertility, Female / drug therapy*
  • Infertility, Female / etiology
  • Ovarian Hyperstimulation Syndrome / chemically induced*
  • Ovarian Hyperstimulation Syndrome / etiology
  • Ovulation Induction / adverse effects*
  • Ovulation Induction / methods
  • Polycystic Ovary Syndrome / complications*
  • Polycystic Ovary Syndrome / drug therapy
  • Vascular Endothelial Growth Factor A

Substances

  • Aromatase Inhibitors
  • Fertility Agents, Female
  • Vascular Endothelial Growth Factor A