Nausea, vomiting and thyroid function before and after induced abortion in normal pregnancy

Area of Science:

• Endocrinology
• Reproductive Medicine
• Obstetrics

Background:

• Thyroid function exhibits trimester-specific variations during pregnancy.
• Early pregnancy hormonal shifts, including hCG-beta, may impact maternal thyroid status.

Purpose of the Study:

• To evaluate thyroid function changes in early pregnancy.
• To assess the relationship between thyroid hormones, hCG-beta, and gestational emesis.
• To observe thyroid function normalization after pregnancy termination.

Main Methods:

• Assessed serum Free T4, TSH, and hCG-beta levels before and after induced abortion in normal pregnant women.
• Correlated thyroid hormone levels with hCG-beta and the presence of nausea and vomiting.
• Monitored thyroid function recovery 7-10 days post-abortion.

Main Results:

• Significant increases in Free T4 and decreases in TSH were observed before abortion, particularly in women with nausea/vomiting.
• These thyroid alterations were associated with elevated serum hCG-beta levels.
• Thyroid function normalized, and hCG-beta levels decreased significantly 7-10 days after induced abortion.

Conclusions:

• Maternal thyroid function in early pregnancy is influenced by serum hCG-beta concentration.
• Elevated hCG-beta may contribute to thyroid changes and induce gestational emesis.
• Induced abortion leads to the normalization of thyroid function and reduction in hCG-beta.