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rdf:type |
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lifeskim:mentions |
umls-concept:C0007874,
umls-concept:C0012356,
umls-concept:C0012359,
umls-concept:C0032961,
umls-concept:C0032979,
umls-concept:C0086418,
umls-concept:C0441722,
umls-concept:C1514873,
umls-concept:C1546857,
umls-concept:C1556066,
umls-concept:C1619636
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pubmed:issue |
6
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pubmed:dateCreated |
1992-12-16
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pubmed:abstractText |
Cervical resistance to dilatation was measured in 76 patients undergoing first trimester legal abortion; a specially designed force-sensing instrument was used. No correlation between cervical resistance and patient age or gestational age was found. Increasing parity and earlier legal abortions were significantly correlated with a lowering of the cervical resistance. In patients dilated to 11 mm a lowering of resistance was noted suggesting a tear in cervical tissue.
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pubmed:keyword |
http://linkedlifedata.com/resource/pubmed/keyword/Abortion, Induced,
http://linkedlifedata.com/resource/pubmed/keyword/Abortion, Legal,
http://linkedlifedata.com/resource/pubmed/keyword/Abortion Seekers,
http://linkedlifedata.com/resource/pubmed/keyword/Abortion Seekers, Repeated,
http://linkedlifedata.com/resource/pubmed/keyword/Cervical Dilatation,
http://linkedlifedata.com/resource/pubmed/keyword/Cervical Laceration,
http://linkedlifedata.com/resource/pubmed/keyword/Clinical Research,
http://linkedlifedata.com/resource/pubmed/keyword/Demographic Factors,
http://linkedlifedata.com/resource/pubmed/keyword/Developed Countries,
http://linkedlifedata.com/resource/pubmed/keyword/Diseases,
http://linkedlifedata.com/resource/pubmed/keyword/Equipment And Supplies,
http://linkedlifedata.com/resource/pubmed/keyword/Europe,
http://linkedlifedata.com/resource/pubmed/keyword/Family Planning,
http://linkedlifedata.com/resource/pubmed/keyword/Fertility,
http://linkedlifedata.com/resource/pubmed/keyword/Fertility Control, Postconception,
http://linkedlifedata.com/resource/pubmed/keyword/Fertility Measurements,
http://linkedlifedata.com/resource/pubmed/keyword/Northern Europe,
http://linkedlifedata.com/resource/pubmed/keyword/Parity,
http://linkedlifedata.com/resource/pubmed/keyword/Population,
http://linkedlifedata.com/resource/pubmed/keyword/Population Dynamics,
http://linkedlifedata.com/resource/pubmed/keyword/Research Methodology,
http://linkedlifedata.com/resource/pubmed/keyword/Research Report,
http://linkedlifedata.com/resource/pubmed/keyword/Scandinavia,
http://linkedlifedata.com/resource/pubmed/keyword/Surgical Equipment,
http://linkedlifedata.com/resource/pubmed/keyword/Sweden,
http://linkedlifedata.com/resource/pubmed/keyword/Treatment
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0141-5425
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
14
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
527-9
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pubmed:dateRevised |
2006-11-15
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pubmed:otherAbstract |
PIP: In Sweden, physicians measured cervical resistance to dilatation in 76 women with a first trimester pregnancy who came to Danderyds Hospital of the Karolinska Institute to undergo legal abortion. They did not prepare the cervix before the abortion. They used Pratt dilators complete with a pressure transducer to dilate the cervix 9-11 mm. They dilated the cervix to 9 mm in women of gestational age no more than 10 weeks and to 11 mm in women of 11 weeks gestational age. Cervical resistance was not associated with either patient age or gestational age. Reduced cervical resistance was significantly associated with increasing parity. Women who had had a previous legal abortion experienced less cervical resistance than those who had never had a previous abortion. Cervical resistance increased up to a diameter of 10 mm and fell for the 11 mm dilator, suggesting a tear in cervical tissue. These findings indicated that physicians should ideally conduct first trimester abortions before the 11th week of pregnancy to keep from dilating the cervix to more than 9 mm. The researchers recommended that their colleagues should soften the cervix preoperatively in nulliparous patients and in all late first trimester abortions.
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pubmed:meshHeading |
pubmed-meshheading:1434578-Abortion, Legal,
pubmed-meshheading:1434578-Aging,
pubmed-meshheading:1434578-Cervix Uteri,
pubmed-meshheading:1434578-Dilatation and Curettage,
pubmed-meshheading:1434578-Female,
pubmed-meshheading:1434578-Gestational Age,
pubmed-meshheading:1434578-Humans,
pubmed-meshheading:1434578-Parity,
pubmed-meshheading:1434578-Pregnancy,
pubmed-meshheading:1434578-Pregnancy Trimester, First
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pubmed:year |
1992
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pubmed:articleTitle |
Forces required for dilatation of human cervix in first trimester of pregnancy.
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pubmed:affiliation |
Department of Obstetrics and Gynaecology, Karolinska Institute, Danderyds Hospital, Sweden.
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pubmed:publicationType |
Journal Article,
Comparative Study
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