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Hyperhomocysteinemia: a risk factor for placental abruption or infarction
T A Goddijn-Wessel1, M G Wouters, E F van de Molen
1Department of Obstetrics and Gynaecology, University Hospital Nijmegen St. Radboud, The Netherlands.
Summary
Hyperhomocysteinemia, a condition of high homocysteine levels, is more prevalent in women experiencing placental abruption or infarction. This suggests a significant association between elevated homocysteine and adverse pregnancy outcomes.
Area of Science:
- Obstetrics and Gynecology
- Metabolic Medicine
- Nutritional Biochemistry
Background:
- Placental abruption and infarction are serious obstetric complications.
- Hyperhomocysteinemia is a metabolic condition linked to various vascular issues.
- Understanding the prevalence of hyperhomocysteinemia in these conditions is crucial for risk assessment.
Purpose of the Study:
- To determine the prevalence of hyperhomocysteinemia in women with a history of placental abruption or infarction.
- To investigate the association between homocysteine levels and placental complications.
Main Methods:
- A case-control study involving 84 women with placental abruption/infarction and 46 controls.
- Oral methionine loading test to assess homocysteine metabolism.
- Measurement of fasting and post-methionine plasma homocysteine.
- Assessment of vitamin status (folate, B12, B6).
Main Results:
- Hyperhomocysteinemia was diagnosed in 31% of women with placental abruption/infarction versus 9% in controls (P < 0.05).
- Lower median concentrations of folate, vitamin B12, and pyridoxal-5'-phosphate were observed in the study group.
- Higher fasting plasma homocysteine was noted in women experiencing these events in their first pregnancy.
Conclusions:
- Hyperhomocysteinemia is significantly associated with placental abruption or infarction.
- Vitamin deficiencies may play a role in the observed hyperhomocysteinemia.
- Further research is warranted to explore the causal relationship and potential interventions.