amniotic band

羊膜索

関

amniotic band syndrome

WordNet

1. a stripe or stripes of contrasting color; "chromosomes exhibit characteristic bands"; "the black and yellow banding of bees and wasps" (同)banding, stria, striation
2. an adornment consisting of a strip of a contrasting color or material (同)banding, stripe
3. bind or tie together, as with a band
4. a driving belt in machinery
5. a restraint put around something to hold it together
6. a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body)
7. a thin flat strip or loop of flexible material that goes around or over something else, typically to hold it together or as a decoration
8. a range of frequencies between two limits
9. instrumentalists not including string players
10. 100 bani equal 1 leu in Moldova
11. 100 bani equal 1 leu in Romania
12. prohibit especially by legal means or social pressure; "Smoking is banned in this building"
13. an official prohibition or edict against something (同)banning, forbiddance, forbidding
14. forbid the public distribution of ( a movie or a newspaper) (同)censor
15. marked with bands or strips of contrasting color or texture; "a banded rock"
16. characterized by a band of especially white around the body; "banded cattle"
17. identified with a band especially around a leg; "kept watch for the return of their banded birds"
18. of or related to the amnion or characterized by developing an amnion; "amniotic membrane" (同)amnionic, amnic

PrepTutorEJDIC

1. 『帯』,『バンド』,ひも,(おけの)たが / (色の)すじ,しま / 周波数 / …‘に'バンドを付ける
2. (人の)『一隊』,『一団』,一群《+『of』+『名』》 / 『楽隊』,バンド / …'を'一隊(一団)にする / 団結する《+『together』》,(…と)一団になる《+『with』+『名』》
3. (法による)(…に対する)『禁止』,禁制(prohibition)《+『on』+『名』》 / (世論などの)反対,非難 / (教会の)破門 / (法律や社会的圧力によって)…'を'『禁ずる』,禁止する

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/03/08 03:58:35」(JST)

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Amniotic band syndrome
A baby's hand affected by amniotic band syndrome
Classification and external resources
ICD-10	P02.8
ICD-9	762.8
OMIM	217100
DiseasesDB	32457
MedlinePlus	001579
eMedicine	orthoped/561
MeSH	D000652

Amniotic band constriction (also known as "amniotic band syndrome", "ADAM complex", "Amniotic band sequence", "Congenital constriction bands" and "Pseudoainhum") is a congenital disorder caused by entrapment of fetal parts (usually a limb or digits) in fibrous amniotic bands while in utero.

§Signs and symptoms

The constriction of appendages by amniotic bands may result in:

1. Constriction rings around the digits, arms and legs
2. Swelling of the extremities distal to the point of constriction (congenital lymphedema)
3. Amputation of digits, arms and legs (congenital amputation)

A strong relationship between ABS and clubfoot (also called "talipes") exists. A 31.5% of associated clubfoot deformity and ABS can be correlated with 20% occurring bilaterally. Other abnormalities found with ABS include: clubhands, cleft lip, and/or cleft palate, and hemangioma.

Decreased fetal movement could be a sign of a serious problem which may include ABS. It is rare but possible for the membrane to become wrapped around the placenta or the neck of the baby in the womb causing strangulation and death.

§Cause

To explain the cause of ABS, there are two main theories.

The amniotic band theory is that ABS occurs due to a partial rupture of the amniotic sac. This rupture involves only the amnion; the chorion remains intact. Fibrous bands of the ruptured amnion float in the amniotic fluid and can encircle and trap some part of the fetus. Later, as the fetus grows but the bands do not, the bands become constricting. This constriction reduces blood circulation, hence causes congenital abnormalities. In some cases a complete "natural" amputation of a digit(s) or limb may occur before birth or the digit(s) or limbs may be necrotic (dead) and require surgical amputation following birth.

The vascular disruption theory: Because the constricting mechanism of the amniotic band theory does not explain the high incidence of cleft palate and other forms of cleft defects occurring together with ABS, this co-occurrence suggests an "intrinsic" defect of the blood circulation.

§Diagnosis

Amniotic band syndrome is often difficult to detect before birth as the individual strands are small and hard to see on ultrasound. Often the bands are detected indirectly because of the constrictions and swelling upon limbs, digits, etc. Misdiagnosis is also common, so if there are any signs of amniotic bands, further detailed ultrasound tests should be done to assess the severity. 3D ultrasound and MRI can be used for more detailed and accurate diagnosis of bands and the resulting damage/danger to the fetus.

§Treatment

In rare cases, if diagnosed in utero, fetal surgery may be considered to save a limb which is in danger of amputation or other deformity. This typically would not be attempted if neither vital organs nor the umbilical cord were affected. This operation has been successfully performed on fetuses as young as 22 weeks. The surgery took place at Melbourne's Monash Medical Centre in Australia and is believed to be the earliest surgery of its type, as surgeons usually hold off on operating until the woman is in week 28 of gestation. There are also several facilities in the United States that have performed successful amniotic band release surgery.

Treatment usually occurs after birth and where plastic and reconstructive surgery is considered to treat the resulting deformity. Plastic surgery ranges from simple to complex depending on the extent of the deformity. Physical and occupational therapy may be needed long term.

Prosthetics may help some ABS sufferers to live more functional lives. The price and complexity of these prosthetics vary dramatically, but advances in 3-D printing have helped to increase the availability of artificial fingers while reducing their cost of production.

§Prognosis

Amniotic Band Syndrome, 26 Year old Male

The prognosis depends on the location and severity of the constricting bands. Every case is different and multiple bands may be entangled around the fetus.

Bands which wrap around fingers and toes can result in syndactyly or amputations of the digits. In other instances, bands can wrap around limbs causing restriction of movement resulting in clubbed feet. In more severe cases, the bands can constrict the limb causing decreased blood supply and amputation. Amniotic bands can also sometimes attach to the face or neck causing deformities such as cleft lip and palate. If the bands become wrapped around the head or umbilical cord it can be life threatening for the fetus.

The number of cases of miscarriage that can be attributed to ABS is unknown, although it has been reported that it may be the cause of 178 in 10,000 miscarriages.

§Prevention

Amniotic band syndrome is considered an accidental event and it does not appear to be genetic or hereditary, so the likelihood of it occurring in another pregnancy is remote. The cause of amnion tearing is unknown and as such there are no known preventative measures.

§Epidemiology

Amniotic banding affects approximately 1 in 1,200 live births. It is also believed to be the cause of 178 in 10,000 miscarriages. Up to 50% of cases have other congenital anomalies including cleft lip, cleft palate, and clubfoot deformity. Hand and finger anomalies occur in up to 80%.

§People living with ABS

Among the more notable people living with ABS are:

• Sophie Wells, British member Paralympics dressage team
• Gina Casillas, US volleyball player
• Ian T. Jamison, US artist
• Anna Johannes, US Paralympic swimmer
• Jean-Jacques Machado, 7th degree red-and-black belt in Brazilian Jiu-Jitsu
• Monica Price, - a case study of a young woman born with amniotic band syndrome

§See also

• List of cutaneous conditions
• Ainhum

§References

• Walter JH, Goss LR, Lazzara AT (1998). "Amniotic band syndrome". The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons 37 (4): 325–33. doi:10.1016/s1067-2516(98)80070-7. PMID 9710786. 
• Light TR, Ogden JA (1993). "Congenital constriction band syndrome. Pathophysiology and treatment". The Yale journal of biology and medicine 66 (3): 143–55. PMC 2588858. PMID 8209551. 

§External links

• -Indian ABS Awareness
• amnioticbandsyndrome.com - Information, Photos, Personal Stories of ABS
• UCSF Fetal Treatment Center: Amniotic Band Syndrome
• SuperHands Kids and Heroes Support Group for parents of kids with upper limb differences
• Cincinnati Children's Hospital Fetal Care Center resources- one of the locations that has performed amniotic band release surgery
• Support and information for families dealing with fetal syndromes such as amniotic band syndrome
• Monica - a case study of a young woman born with amniotic band syndrome

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

• 1. 続発性羊膜帯 amniotic band sequence
• 2. 先天性奇形に対するアプローチ approach to congenital malformations
• 3. 口唇口蓋裂の病因、出生前診断、産科マネージメント、および再発 etiology prenatal diagnosis obstetrical management and recurrence of orofacial clefts
• 4. 胎児腹壁破裂および総排泄腔外反症 body stalk anomaly and cloacal exstrophy
• 5. 臍帯卵膜付着と前置血管 velamentous umbilical cord insertion and vasa previa

English Journal

• Three- and four-dimensional HDlive rendering images of normal and abnormal fetuses: pictorial essay.

• Hata T, Hanaoka U, Tenkumo C, Sato M, Tanaka H, Ishimura M.SourceDepartment of Perinatology and Gynecology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan, toshi28@med.kagawa-u.ac.jp.
• Archives of gynecology and obstetrics.Arch Gynecol Obstet.2012 Dec;286(6):1431-5. doi: 10.1007/s00404-012-2505-1. Epub 2012 Aug 7.
• BACKGROUND: Our objective is to present our experience of normal embryonic development and fetal anatomy and fetal anomalies reconstructed employing the three-dimensional (3D) and four-dimensional (4D) HDlive rendering mode.METHODS: A total of 18 normal embryos and fetuses and 21 abnormal fetuses (o
• PMID 22868950

• Association between maternal age and birth defects of unknown etiology - United States, 1997-2007.

• Gill SK, Broussard C, Devine O, Green RF, Rasmussen SA, Reefhuis J; and the National Birth Defects Prevention Study.SourceNational Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia; Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia.
• Birth defects research. Part A, Clinical and molecular teratology.Birth Defects Res A Clin Mol Teratol.2012 Dec;94(12):1010-8. doi: 10.1002/bdra.23049. Epub 2012 Jul 23.
• BACKGROUND: Birth defects affect 3% of babies born, and are one of the leading causes of infant mortality. Both younger and older maternal age may pose increased risks for certain birth defects. This study assessed the relationship between maternal age at the estimated delivery date and the risk for
• PMID 22821755

Japanese Journal

• Abnormal first-trimester fetal nuchal translucency and amniotic band syndrome

• HIGUCHI Takayuki,TANAKA Mamoru,KURODA Keiko,YABUNO Akira,KIM Seon Hye,ASAI Satoshi,IWATA Sokichi,MIYAKOSHI Kei
• Journal of medical ultrasonics : official journal of the Japan Society of Ultrasonics in Medicine 39(3), 177-180, 2012-07-15
• NAID 10030811730

• 口唇口蓋裂を合併した羊膜破裂シークエンスの2例

• 氷見 和巳,瀬崎 晃一郎,山崎 安晴 [他]
• 北里医学 41(2), 123-125, 2011-12
• NAID 40019192595

• 羊膜索症候群による両側 Tessier No. 3 顔面裂の治療経験

• 南村 愛,櫻井 淳,黒澤 紀子,長谷川 宏美
• 日本頭蓋顎顔面外科学会誌 = Journal of the Japan Society of Cranio-Maxillo-Facial Surgery 26(4), 350-356, 2010-12-25
• NAID 10027725220

Related Links

• amniotic band syndrome

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• Amniotic band syndrome: MedlinePlus Medical Encyclopedia

Amniotic band syndrome (ABS) is a group of birth defects that result when strands of the amniotic sac detach and wrap around parts of the baby in the womb. The defects may affect the face, arms, legs, fingers, or toes.

Related Pictures

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★リンクテーブル★

リンク元	「羊膜索症候群」「羊膜索」
関連記事	「band」「ban」「banding」「amniotic」

「羊膜索症候群」

　　[★]

英

amniotic band syndrome

関

羊膜索 amniotic band、シモナルト帯

• 羊膜破裂を原因とする胎児奇形

「羊膜索」

　　[★]

英

amniotic band

同

シモナール糸 Simonart thread

関

シモナルト帯

「band」

　　[★]

• n.

• バンド、帯、バンド形成する
• 桿状核球 桿状核好中球

関

banding、cingulum、zona、zonae、zone

　 　 　 　 　 　 　 　 　 　 　 　

「ban」

　　[★]

• n.

• 禁止

• v.

• 禁止する

関

abstinent、forbid、interdict、prohibit、prohibition、prohibitive

　 　 　 　 　 　

「banding」

　　[★]

• n.

• バンド形成、結紮、絞扼

関

band、ligate、ligation、strangulation

「amniotic」

　　[★]

• adj.

• 羊水の

関

amniotic fluid