Biomaterial Database

Preoperative cervical dilatation: a trial of laminaria tents and prostaglandin F2 alpha gel. 1986

N D Morris, and G I McCallum, and L Hammond

Surgical damage to the cervix in patients undergoing termination of pregnancy may be responsible for serious complications in subsequent pregnancies. Sixty nulliparous women undergoing first trimester termination of pregnancy were randomly allocated to 3 treatment groups, one using laminaria tents preoperatively, one using intracervical PGF2 alpha gel preoperatively and one using no pretreatment. Results showed clear benefits in the laminaria group, in terms of achieving preoperative cervical dilatation and ease of further operative dilatation. Laminaria tents were superior to PGF2 alpha gel which was, in turn, superior to no pretreatment. There were no differences in blood loss or postoperative complications among the 3 groups. Laminaria tents provide a cheap, effective and safe method of reducing the risk of cervical damage in women undergoing surgical termination of pregnancy.

UI	MeSH Term	Description	Entries
D007795	Laminaria	A genus of BROWN ALGAE in the family Laminariaceae. Dried pencil-like pieces may be inserted in the cervix where they swell as they absorb moisture, serving as osmotic dilators.	Kjellmaniella,Laminaria Tents,Saccharina,Laminaria Tent
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
D011300	Preoperative Care	Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed)	Care, Preoperative,Preoperative Procedure,Preoperative Procedures,Procedure, Preoperative,Procedures, Preoperative
D011460	Prostaglandins F	(9 alpha,11 alpha,13E,15S)-9,11,15-Trihydroxyprost-13-en-1-oic acid (PGF(1 alpha)); (5Z,9 alpha,11,alpha,13E,15S)-9,11,15-trihydroxyprosta-5,13-dien-1-oic acid (PGF(2 alpha)); (5Z,9 alpha,11 alpha,13E,15S,17Z)-9,11,15-trihydroxyprosta-5,13,17-trien-1-oic acid (PGF(3 alpha)). A family of prostaglandins that includes three of the six naturally occurring prostaglandins. All naturally occurring PGF have an alpha configuration at the 9-carbon position. They stimulate uterine and bronchial smooth muscle and are often used as oxytocics.	PGF
D011897	Random Allocation	A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects.	Randomization,Allocation, Random
D002584	Cervix Uteri	The neck portion of the UTERUS between the lower isthmus and the VAGINA forming the cervical canal.	Cervical Canal of the Uterus,Cervical Canal, Uterine,Ectocervix,Endocervical Canal,Endocervix,External Os Cervix,External Os of the Cervix,Uterine Cervical Canal,Cervix,Cervixes,Uterine Cervix,Canal, Endocervical,Canal, Uterine Cervical,Cervix, External Os,Cervix, Uterine,Endocervical Canals,Uterine Cervical Canals
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
D004106	Dilatation	The act of dilating.	Dilation,Dilatations,Dilations
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man