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Revista Cubana de Obstetricia y Ginecología
On-line version ISSN 1561-3062
Abstract
MARTINEZ BARREIRO, Luis Armando and HERRERA LEON, Lorenzo. Fetal survival according to maternal genesial history. Rev Cubana Obstet Ginecol [online]. 2008, vol.34, n.1, pp. 0-0. ISSN 1561-3062.
OBJECTIVE: to determine the level of the expulsion risks and of the permanence in the uterus of the product of conception, according to the previous genesial history of the mother. METHODS: the universe of study was composed of all the deliveries expelled during 2003, with 22 or more weeks of gestation in Granma province. The information was obtained from the databases of live births and perinatal deaths of the National Statistics Office and the National Statistics Division of the Ministry of Public Health. Life tables were designed according to the result of pregnancy, for which it was necessary the construction of pregnancy cohorts according to the previous genesial history of the mother. This procedure allowed to have risk curves of expulsion of vital events (live birth, fetal death) by gestational age and permanence in the uterus. The latter was used as a potential measure of fetal development. RESULTS: the level of the risk curves of expulsion of the still births increases as the pregnant woman has a greater number of events in her previous genesial history; however, this level for the case of live births is not affected by this history. CONCLUSIONS: in general terms, the formation of fetuses that will be live births is fairly independent from the genesial history of the mother, whereas that of those that will be born dead in still births presents marked differences according to that tory.
Keywords : Fetal permanence; vital events; expulsion risk.