cephalopelvic disproportion

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a lack of the proper relationship between two elements or factors.
cephalopelvic disproportion abnormally large size of the fetal skull in relation to the maternal pelvis, leading to difficulties in delivery.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

cephalopelvic disproportion (CPD),

a condition in which the fetal head is too large to traverse the maternal pelvis.
Farlex Partner Medical Dictionary © Farlex 2012

cephalopelvic disproportion

Obstetrics A structural and functional disparity between the fetus and the birth canal which makes vaginal delivery difficult or impossible. See Birth canal, Dystocia.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

ceph·a·lo·pel·vic dis·pro·por·tion

(sef'ă-lō-pel'vik dis'prŏ-pōr'shŭn)
A condition in which the fetal head is too large to traverse the maternal pelvis, causing arrest of labor.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Cephalopelvic disproportion (CPD)

The condition in which the baby's head is too large to fit through the mother's pelvis.
Mentioned in: Cesarean Section
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
A new predictor of cephalopelvic disproportion? J Obstet Gynaecol.
We determined the normal values for the pelvic parameters ACD, OCD, DCD and ISD, using CT because they are the most important for diagnosing cephalopelvic disproportion. DCD and ISD are usually the ones subjectively examined by finger palpation during labor.
Sagittal suture overlap in cephalopelvic disproportion: blinded and non-participant assessment.
Because of the overlap in the clinical definition of cephalopelvic disproportion, failure to progress, and dystocia, these diagnoses were grouped together into a single category called "cephalopelvic disproportion/dystocia."
One study of over 25,000 women in England showed that prolonged second stages of labor were associated with an increased incidence of postpartum hemorrhage and infection, possibly caused by an increased risk of operative deliveries.[1] Other studies have demonstrated that women who use epidural anesthesia during labor have a higher rate of operative deliveries, malposition, cesarean section for dystocia or cephalopelvic disproportion, and a need for pitocin augmentation.[14,15] Operative vaginal deliveries and cesarean sections increase maternal morbidity, especially the incidence of postpartum hemorrhage, mortality, cost, days in hospital, days off work, and total days of discomfort.
Causes of obstructed labour were cephalopelvic disproportion superimposed by lack of transport facilities and traditional family taboos against seeking medical advice.
With patients who are more at risk for decreased uterine contractility (BJOG 2007;114:343-8), abnormal and dysfunctional labor patterns, gestational diabetes, and cephalopelvic disproportion, it should be no surprise that cesarean delivery is on the rise.
Patient's claim Protracted labor and slow descent of the baby indicated cephalopelvic disproportion. A cesarean section should have been performed.
-- Fetal weight estimates based on ultrasound are not useful in determining which women with a history of C-section due to cephalopelvic disproportion should undergo a trial of labor, results of a large retrospective study suggest.
Look at the million women a year in this culture who are sectioned for cephalopelvic disproportion (CPD) and failure to progress (FTP), or who are told they have to have vacuum extractions or forceps deliveries--they were just responding to the commands they were given!
Common features of a labor complicated by pneumomediastinum have been thought to include nulliparity, a prolonged 2nd stage that requires strenuous pushing,[9] and cephalopelvic disproportion or dystocia.[2,7] An analysis of data from 187 cases confirmed that most women were primiparas but had a normal mean length of labor and fetal size.[10]
Out of the 129 cases of gestational diabetes mellitus, the indication for cesarean section was foetal distress in 39 cases, obstructed labour and cephalopelvic disproportion in 14 cases, antepartum haemorrhage in 5 cases, failure of induction in 8 cases and elective cesarean in 11 cases.