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lack of proportion; imbalance among the parts of something

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(大きさ・数・量などの)不均衡;(二者間の)不釣り合い《+『between』+『名』》;〈C〉不釣り合いな物

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/11/20 15:12:00」(JST)

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Cephalo-pelvic disproportion exists when the capacity of the pelvis is inadequate to allow the fetus to negotiate the birth canal. This may be due to a small pelvis, a nongynecoid pelvic formation, a large fetus, an unfavorable orientation of the fetus, or a combination of these factors. Certain medical conditions may distort pelvic bones, such as rickets or a pelvic fracture, and lead to CPD.

Transverse diagonal measurement has been proposed as a predictive method.^[1]

References

^ Liselele HB, Boulvain M, Tshibangu KC, Meuris S (August 2000). "Maternal height and external pelvimetry to predict cephalopelvic disproportion in nulliparous African women: a cohort study". BJOG 107 (8): 947–52. doi:10.1111/j.1471-0528.2000.tb10394.x. PMID 10955423.

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1. 正常分娩および遷延分娩、分娩停止 overview of normal labor and protraction and arrest disorders
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3. 正常な陣痛および分娩のメカニズム mechanism of normal labor and delivery
4. Urinary incontinence and pelvic organ prolapse associated with pregnancy and childbirth
5. 帝王切開出産後の分娩経路の選択 choosing the route of delivery after cesarean birth

English Journal

Outcomes of pregnancy with gestational diabetes mellitus.

Srichumchit S1, Luewan S2, Tongsong T1.
International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.Int J Gynaecol Obstet.2015 Dec;131(3):251-4. doi: 10.1016/j.ijgo.2015.05.033. Epub 2015 Aug 28.
OBJECTIVE: To compare pregnancy outcomes between women with gestational diabetes mellitus (GDM) and those with low-risk pregnancies during implementation of the GDM practice guideline.METHODS: In a retrospective study, data were compared between women with singleton pregnancies complicated by GDM an
PMID 26372349

Pubic Symphysis Rupture and Separation During Pregnancy.

Shnaekel KL1, Magann EF2, Ahmadi S3.
Obstetrical & gynecological survey.Obstet Gynecol Surv.2015 Nov;70(11):713-8. doi: 10.1097/OGX.0000000000000247.
OBJECTIVE: The aim of this study was to determine the risk factors, clinical and radiologic criteria for diagnosis, and management of this unusual complication of pregnancy.METHODS: A PubMed and Web of Science search was undertaken with no limitations on the number of years searched.RESULTS: There w
PMID 26584720

Determination of Frequency of Gynecoid Pelvis by Three-dimensional Computed Tomography in Non-pregnant Multiparous Women.

Salk I, Cetin M, Salk S, Cetin A.
Medical principles and practice : international journal of the Kuwait University, Health Science Centre.Med Princ Pract.2015 Sep 3. [Epub ahead of print]
OBJECTIVE: <br>To determine the frequencies of gynecoid and non-gynecoid pelvic types in non-pregnant multiparous women with three-dimensional (3D) computed tomography (CT) pelvimetry. We also intended to determine the value of classical criteria and measured parameters for prediction of gynec
PMID 26334957