Biomaterial Database

The influence of aspirin on the course of induced midtrimester abortion. 1976

J R Niebyl, and D A Blake, and L S Burnett, and T M King

Prostaglandins appear to mediate the uterine contractions of abortion and labor, and aspirin has been shown to be an inhibitor of prostaglandin synthesis. In this double-blind, placebo-controlled, prospective, and randomized study, aspirin was administered orally in doses of 600 mg. every 6 hours to patients undergoing induced midtrimester abortions with hyperosmolar urea and oxytocin augmentation. The mean injection-abortion interval was significantly prolonged by aspirin in nulliparous patients (aspirin 32.3 +/- 3.3 hr. vs. placebo 21.5 +/- 3.5 hr.) and no aspirin-treated nullipara aborted in less than 18 hours. There was no significant difference between treatment groups in the mean injection-abortion interval in the multiparous patients at the dose of aspirin used. The effectiveness of aspirin in the prolongation of the injection-abortion interval has potential therapeutic implications for the treatment of premature labor.

UI	MeSH Term	Description	Entries
D007752	Obstetric Labor, Premature	Onset of OBSTETRIC LABOR before term (TERM BIRTH) but usually after the FETUS has become viable. In humans, it occurs sometime during the 29th through 38th week of PREGNANCY. TOCOLYSIS inhibits premature labor and can prevent the BIRTH of premature infants (INFANT, PREMATURE).	Preterm Labor,Labor, Premature,Premature Labor,Premature Obstetric Labor,Labor, Premature Obstetric,Labor, Preterm
D010298	Parity	The number of offspring a female has borne. It is contrasted with GRAVIDITY, which refers to the number of pregnancies, regardless of outcome.	Multiparity,Nulliparity,Primiparity,Parity Progression Ratio,Parity Progression Ratios,Ratio, Parity Progression,Ratios, Parity Progression
D010919	Placebos	Any dummy medication or treatment. Although placebos originally were medicinal preparations having no specific pharmacological activity against a targeted condition, the concept has been extended to include treatments or procedures, especially those administered to control groups in clinical trials in order to provide baseline measurements for the experimental protocol.	Sham Treatment
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011262	Pregnancy Trimester, Second	The middle third of a human PREGNANCY, from the beginning of the 15th through the 28th completed week (99 to 196 days) of gestation.	Midtrimester,Pregnancy, Second Trimester,Trimester, Second,Midtrimesters,Pregnancies, Second Trimester,Pregnancy Trimesters, Second,Second Pregnancy Trimester,Second Pregnancy Trimesters,Second Trimester,Second Trimester Pregnancies,Second Trimester Pregnancy,Second Trimesters,Trimesters, Second
D002986	Clinical Trials as Topic	Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.	Clinical Trial as Topic
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000028	Abortion, Induced	Intentional removal of a fetus from the uterus by any of a number of techniques. (POPLINE, 1978)	Embryotomy,Abortion (Induced),Abortion Failure,Abortion History,Abortion Rate,Abortion Technics,Abortion Techniques,Abortion, Drug-Induced,Abortion, Rivanol,Abortion, Saline-Solution,Abortion, Soap-Solution,Anti-Abortion Groups,Fertility Control, Postconception,Induced Abortion,Previous Abortion,Abortion Failures,Abortion Histories,Abortion Rates,Abortion Technic,Abortion Technique,Abortion, Drug Induced,Abortion, Previous,Abortion, Saline Solution,Abortion, Soap Solution,Abortions (Induced),Abortions, Drug-Induced,Abortions, Induced,Abortions, Previous,Abortions, Rivanol,Abortions, Saline-Solution,Abortions, Soap-Solution,Anti Abortion Groups,Anti-Abortion Group,Drug-Induced Abortion,Drug-Induced Abortions,Embryotomies,Failure, Abortion,Failures, Abortion,Group, Anti-Abortion,Groups, Anti-Abortion,Histories, Abortion,History, Abortion,Induced Abortions,Postconception Fertility Control,Previous Abortions,Rate, Abortion,Rates, Abortion,Rivanol Abortion,Rivanol Abortions,Saline-Solution Abortion,Saline-Solution Abortions,Soap-Solution Abortion,Soap-Solution Abortions,Technic, Abortion,Technics, Abortion,Technique, Abortion,Techniques, Abortion
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths