Subject(s)
Folic Acid/poisoning , Pregnancy Complications/chemically induced , Adolescent , Adult , Female , Folic Acid/administration & dosage , Humans , Infant, Newborn , Male , Poisoning , Pregnancy , Pregnancy Outcome , Pregnancy Trimester, Second , Pregnancy Trimester, Third , Suicide, AttemptedABSTRACT
OBJECTIVE: To identify the teratogenic risk of large doses of various drugs taken by women in attempting suicide. METHODS: This population-based, prospective, epidemiologic study involved 559 women with pregnancy verified by a serum pregnancy test who were admitted to the toxicologic inpatient clinic in Budapest responsible for providing health services to chemically poisoned individuals from a population of 3 million. Each self-poisoned woman was matched for age and gestational age with a control selected from among participants in periconceptional care. RESULTS: Two of 559 self-poisoned pregnant women died. One hundred seventy-eight infants born to mothers who poisoned themselves during pregnancy either were examined personally or had appropriate medical data available. After excluding eight infants with fetal alcohol syndrome born to heavy-drinking mothers, the rate of congenital abnormalities in study infants (9.0%) did not significantly exceed the rate of control infants (6.1%). Thus, no teratogenic effect of drugs used for self-poisoning could be identified, even though large doses of drugs were used in 27 cases between the 3rd and 8th weeks of fetal development. This sample was not large enough to evaluate single drugs separately. CONCLUSION: Drugs taken by women in attempting suicide do not seem to pose a risk for structural birth defects in the offspring.
Subject(s)
Abnormalities, Drug-Induced/epidemiology , Poisoning/complications , Suicide, Attempted , Abnormalities, Drug-Induced/etiology , Abnormalities, Multiple/chemically induced , Abnormalities, Multiple/epidemiology , Adult , Case-Control Studies , Female , Fetal Alcohol Spectrum Disorders/epidemiology , Humans , Hungary/epidemiology , Infant, Newborn , Male , Pregnancy , Pregnancy Complications/psychology , Prospective Studies , Risk FactorsABSTRACT
In the lymphatic vessels in the heart of the pig are structures that influence and determine the direction of the flow of the lymph. These flow-directing structures include simple invaginations of the vessel walls, single-valvulate valves, and double-valvulate valves. The anatomy, frequency, and placement of these structures vary according to differences in the forces maintaining lymph flow. The histology and fine structure of these valves is similar to those of the mesenterium.