Anencephalus and spina bifida.
نویسندگان
چکیده
منابع مشابه
Anencephalus, Spina Bifida, twins, and teratoma.
The twin pairs with spina bifida and or anencephalus collected from the literature by Rogers and Weatherall (1976) form the basis for an argument that the apparent rarity of dizygous twins concordant for these malformations may be due to the breakdown of the interamniotic partition and a subsequent fetus-fetus interaction. It is suggested that this may lead to complete or partial destruction of...
متن کاملAnencephalus and spina bifida in Belfast (1964-1968).
AT the beginning of this century in Belfast, the infant mortality rate was 153 per 1,000 livebirths; by 1970, the rate had fallen to 28 per 1,000 livebirths (Elwood, 1973). On the other hand, the contribution of congenital malformations to the infant death rate has altered only slightly and it is reasonable to assume that as mortality and morbidity continue to fall the relative importance of co...
متن کاملFactors associated with anencephalus and spina bifida in Belfast.
A high incidence of major malformations of the central nervous system has been reported from both Northern Ireland (Stevenson, Johnston, Stewart, and Golding, 1966) and the Irish Republic (Coffey and Jessop, 1957). These studies, however, were based on hospital births only, leaving some doubt as to whether these high frequencies are real or partly due to preselection of such cases for managemen...
متن کاملIncidence of anencephalus, spina bifida, and hydrocephalus related to birth rank and maternal age.
Several investigators have stressed the importance of genetic factors in the aetiology of malformations of the central nervous system, and some have even advanced hypotheses describing the genetic mechanisms involved. Such hypotheses are speculative, and the role of environmental events should continue to receive evaluation. Association of characteristics of the offspring with birth order or wi...
متن کاملThe composition of drinking water and the prevalence of anencephalus and spina bifida in New Zealand.
A study was conducted in a cohort of New Zealand births on the prevalence of anencephalus and spina bifida in relation to various chemical elements in the drinking water. Cases were ascertained from national infant mortality and late fetal death records, and public hospital records and consisted of still and live births (of 28 or more weeks gestation) during 1978-1982 with anencephalus or spina...
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ژورنال
عنوان ژورنال: BMJ
سال: 1969
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.5653.381-a