Testosterone serum levels are not predictive of maternal virilization in hyperreactio luteinalis

Area of Science:

• Reproductive Endocrinology
• Obstetrics and Gynecology

Background:

• Hyperreactio luteinalis (HL) is a pregnancy-specific condition characterized by elevated testosterone.
• Maternal virilization occurs in approximately 30% of HL cases, but the correlation with testosterone levels is unquantified.

Purpose of the Study:

• To identify a testosterone cut-off level for predicting maternal virilization in HL.
• To assess the relationship between circulating testosterone concentrations and maternal virilization in HL.

Main Methods:

• A literature search was conducted for studies reporting serum testosterone levels and maternal virilization status in HL.
• Serial steroid levels were analyzed using Liquid chromatography-tandem mass spectrometry (LC-MS/MS) in a single HL case.

Main Results:

• Thirty-one cases met the inclusion criteria, revealing significant overlap in testosterone levels between virilized and non-virilized women.
• Reported testosterone ranges were 6.2–37.3 nmol/l for asymptomatic women and 13.7–197.5 nmol/l for virilized women.
• Peak testosterone in the reported case was 120.3 nmol/l, with limited information on analytical methods used across studies.

Conclusions:

• Current data suggest that circulating testosterone levels cannot reliably predict maternal virilization in HL.
• Discrepancies in analytical methods hinder result comparability; LC-MS/MS is recommended for testosterone measurement.