Prevalence and Incidence of Abruptio Placentae
Abruptio Placentae Prevalence: Book Excerpts
Prevalence/Incidence of Abruptio Placentae: Online Medical Books
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for more information about the prevalence and/or incidence of Abruptio Placentae.
Premature rupture of membranes:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Although the cause of PROM is unknown, malpresentation and contracted pelvis commonly accompany the rupture. Predisposing factors may include:
❑ poor nutrition and hygiene, and lack of proper prenatal care
❑ incompetent cervix (perhaps as a result of abortions)
❑ increased intrauterine tension due to hydramnios or multiple pregnancies
❑ defects in the amniochorial membranes’ tensile strength
❑ uterine infection.
PROM occurs in nearly 10% of all pregnancies over 20 weeks’ gestation.
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Source: Professional Guide to Diseases (Eighth Edition), 2005
Premature labor:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
The possible causes of premature labor are many; they may include premature rupture of the membranes (occurs in 30% to 50% of premature labors), preeclampsia, chronic hypertensive vascular disease, hydramnios, multiple pregnancy, placenta previa, abruptio placentae, incompetent cervix, abdominal surgery, trauma, structural anomalies of the uterus, infections (such as rubella or toxoplasmosis), congenital adrenal hyperplasia, and fetal death.
Other important provocative factors include:
❑ Fetal stimulation: Genetically imprinted information tells the fetus that nutrition is inadequate and that a change in environment is required for well-being; this provokes onset of labor.
❑ Oxytocin sensitivity: Labor begins because the myometrium becomes hypersensitive to oxytocin, the hormone that normally induces uterine contractions.
❑ Myometrial oxygen deficiency: The fetus becomes increasingly proficient in obtaining oxygen, depriving the myometrium of the oxygen and energy it needs to function normally, thus making the myometrium irritable.
❑ Maternal genetics: A genetic defect in the mother shortens gestation and precipitates premature labor.
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Source: Professional Guide to Diseases (Eighth Edition), 2005
Premature Thelarche:
Premature Thelarche - epidemiology
(The 5-Minute Pediatric Consult)
60% of cases noted between 6 months and 2 years of age
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
About prevalence and incidence statistics:
The term 'prevalence' of Abruptio Placentae usually refers to the estimated population
of people who are managing Abruptio Placentae at any given time.
The term 'incidence' of Abruptio Placentae refers to the annual diagnosis rate,
or the number of new cases of Abruptio Placentae diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.
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