ブラクストン・ヒックス収縮
WordNet
- (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber) (同)muscular_contraction, muscle_contraction
- the act of decreasing (something) in size or volume or quantity or scope
- a word formed from two or more words by omitting or combining some sounds; "`wont is a contraction of `will not"; "`oclock is a contraction of `of the clock"
PrepTutorEJDIC
- 〈U〉〈C〉(…の)収縮,短縮《+『of』+『名』》 / 〈U〉(通貨・資金・支出などの)縮小,節減《+『of』+『名』》 / 〈U〉(いやなこと・よくないことを)身に負うこと,(悪習などが)身につくこと《+『of』+『名』》 / 〈C〉陣痛
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/07/16 15:43:25」(JST)
[Wiki en表示]
"Braxton Hicks" redirects here. For the music by Jebediah, see Braxton Hicks (album). For the English doctor, see John Braxton Hicks.
| Braxton Hicks contractions |
| Classification and external resources |
| Specialty |
Obstetrics |
| ICD-10 |
O47 |
| ICD-9-CM |
644.1 |
| DiseasesDB |
32873 |
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[edit on Wikidata]
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Braxton Hicks contractions, also known as prodromal labor or practice contractions, or false labor, are sporadic uterine contractions that sometimes start around six weeks into a pregnancy. However, they are not usually felt until the second trimester or third trimester of pregnancy.[1]
Contents
- 1 Symptoms
- 2 Cause
- 3 Alleviating factors
- 4 History
- 5 References
Symptoms
Braxton Hicks contractions are often infrequent, irregular, and involve only mild cramping.[1]
As pregnancy goes on Braxton Hicks contractions go from unnoticeable amounts of pain signals to irregular, infrequent cramping to strong frequent cramping and then finally labor pains.
Cause
Braxton Hicks contractions are a tightening of the uterine muscles for one to two minutes and are thought to be an aid to the body in its preparation for birth.[2] Not all expectant mothers feel these contractions. They are not thought to be part of the process of effacement of the cervix.
Alleviating factors
- Dehydration can make muscles spasm, bringing on a contraction, and is thought to be a factor in extended Braxton Hicks contractions. Adequate hydration can alleviate Braxton Hicks contractions.
- Rhythmic breathing may alleviate the discomfort of Braxton Hicks contractions.
- Lying down on the left side can help ease the pain of contractions.
- A slight change in movement sometimes makes the contractions disappear.
- A full bladder can sometimes trigger Braxton Hicks, so urination may end the contractions.
History
Braxton Hicks contractions are named after the English doctor who first described them. In 1872, John Braxton Hicks investigated the later stages of pregnancy and noted that many women felt contractions without being near birth.[3] This process was usually painless but caused women confusion as to whether or not they were going into actual labor. It has since been found that Braxton Hicks contractions are much less noticeable during exercise, whereas real contractions are noticeable during exercise.[citation needed]
References
- ^ a b Leah Hennen; Murray, Linda; Jim Scott (2005). The BabyCenter Essential Guide to Pregnancy and Birth : Expert Advice and Real-World Wisdom from the Top Pregnancy and Parenting Resource. Emmaus, Pa: Rodale Books. ISBN 1-59486-211-7.
- ^ Bhattacharya, Deepamala. "Braxton Hicks Contractions". Pregmed. Retrieved 15 February 2015.
- ^ Dunn PM (1999). "John Braxton Hicks (1823-97) and painless uterine contractions". Arch. Dis. Child. Fetal Neonatal Ed. 81 (2): F157–8. doi:10.1136/fn.81.2.F157. PMC 1720982. PMID 10448189.
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Pathology of pregnancy, childbirth and the puerperium (O, 630–679)
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| Pregnancy |
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Pregnancy with
abortive outcome
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- Ectopic pregnancy
- Abdominal pregnancy
- Cervical pregnancy
- Interstitial pregnancy
- Ovarian pregnancy
- Molar pregnancy
- Miscarriage
- Stillbirth
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Oedema, proteinuria and
hypertensive disorders
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- Gestational hypertension
- Pre-eclampsia
- Eclampsia
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Other, predominantly
related to pregnancy
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Digestive system
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- Acute fatty liver of pregnancy
- Gestational diabetes
- Hepatitis E
- Hyperemesis gravidarum
- Intrahepatic cholestasis of pregnancy
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|
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Integumentary system /
dermatoses of pregnancy
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- Gestational pemphigoid
- Impetigo herpetiformis
- Intrahepatic cholestasis of pregnancy
- Linea nigra
- Prurigo gestationis
- Pruritic folliculitis of pregnancy
- Pruritic urticarial papules and plaques of pregnancy (PUPPP)
- Striae gravidarum
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Nervous system
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Blood
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- Gestational thrombocytopenia
- Pregnancy-induced hypercoagulability
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Maternal care related to the
fetus and amniotic cavity
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- amniotic fluid
- Oligohydramnios
- Polyhydramnios
- Braxton Hicks contractions
- chorion / amnion
- Amniotic band syndrome
- Chorioamnionitis
- Chorionic hematoma
- Monoamniotic twins
- Premature rupture of membranes
- Obstetrical hemorrhage
- placenta
- Circumvallate placenta
- Monochorionic twins
- Placenta praevia
- Placental abruption
- Twin-to-twin transfusion syndrome
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| Labor |
- Amniotic fluid embolism
- Cephalopelvic disproportion
- Dystocia
- Fetal distress
- Locked twins
- Obstetrical hemorrhage
- placenta
- Preterm birth
- Postmature birth
- Umbilical cord prolapse
- Uterine rupture
- Vasa praevia
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| Puerperal |
- Breastfeeding difficulties
- Lactation failure
- Galactorrhea
- Fissure of the nipple
- Breast engorgement
- Diastasis symphysis pubis
- Peripartum cardiomyopathy
- Postpartum depression
- Postpartum thyroiditis
- Puerperal fever
- Puerperal mastitis
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| Other |
- Concomitant conditions
- Diabetes mellitus
- Systemic lupus erythematosus
- Thyroid disorders
- Maternal death
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UpToDate Contents
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English Journal
- When it hurts I think: Now the baby dies. Risk perceptions of physical activity during pregnancy.
- Hanghøj S1.
- Women and birth : journal of the Australian College of Midwives.Women Birth.2013 Sep;26(3):190-4. doi: 10.1016/j.wombi.2013.04.004. Epub 2013 May 25.
- BACKGROUND: A decrease in the level of physical activity from pre-pregnancy to pregnancy seems to be a general problem, despite the obvious health benefits of physical activity. Quantitative studies indicate that pregnant women's fears might explain why they reduce their level of physical activity,
- PMID 23711581
- From Braxton Hicks to preterm labour: the constitution of risk in pregnancy.
- MacKinnon K1, McIntyre M.
- The Canadian journal of nursing research = Revue canadienne de recherche en sciences infirmières.Can J Nurs Res.2006 Jun;38(2):56-72.
- With the recent introduction of preterm birth prevention programs there has been a shift in our understanding of what the presence of contractions during pregnancy means and a reconstituting of risk in ways that position increasing numbers of women at risk for preterm birth. This paper highlights th
- PMID 16871850
- Antenatal sonographic detection of an unusual placental lake under the cord insertion.
- Has R1, Yüksel A, Günay S, Aydinhan E, Ozgün T.
- Archives of gynecology and obstetrics.Arch Gynecol Obstet.2005 Jan;271(1):59-61. Epub 2004 Aug 7.
- PRESENTATION: We detected an unusual placental lake under the membranes between the two lobes of a placenta bilobate with a turbulent blood flow in it. This was an extraordinary maternal lake: simply the accumulation of maternal blood inside the intervillous space in an area where villous structures
- PMID 15309400
Related Links
- Learn what Braxton Hicks contractions feel like, how they’re different from true labor, ways to ease pain and discomfort, and when to call your doctor. ... This Internet site provides information of a general nature and is designed for ...
- Braxton Hicks are called practice contractions, but here's what you need to know. ... Some moms say that they only experience Braxton Hicks contractions when moving around and they cease when mom sits down. Calling your ...
★リンクテーブル★
[★]
- 短縮、収縮。(筋肉の)収縮、攣縮。(医)(腎・肝・膀胱などの)萎縮
- 縮小。制限。(通貨・資金などの)制限、回収、縮小。不況
- (数)縮小、縮約。省略算。(文法)縮約、短縮
- 負債を作ること、病気にかかること、癖のつくこと
- 交わり/約束を結ぶこと(of)