28th Aching 2008
Placenta prelying
Placenta prelying — such arrangement of a placenta in the bottom department of a uterus at which the placenta in full or in part closes an internal part of the channel of a neck of a uterus (an internal pharynx). If the placenta edge is located near to an internal pharynx (on distance less than 6 sm), but does not reach it, such condition is called as a low arrangement of a placenta.
The main reasons conducting to placentae, — a pathology of a mucous membrane of a uterus owing to inflammatory processes, abortions, pathological sorts, infantility, anomalies of development of a uterus, (located under a mucous membrane) uterus myomas. egg thus does not find necessary conditions for implantation in the top segment of a uterus (that is observed in norm) owing to what it falls to a uterus bottom (its bottom segment).
At full prelying of a placenta the bleeding arises in terms of 25-30 weeks and repeats more often, than at its partial prelying. At partial prelying of a placenta the bleeding can arise for the first time only during sorts. The bleeding arises owing to partial placentae.
The bleeding at placentae arises suddenly, is not accompanied by painful sensations, quite often arises at full rest and even during a dream, periodically repeats, that leads to an anaemia (anaemia).
It is possible to confirm the diagnosis of prelying of a placenta by means of ultrasonic inspection which allows to define the placenta location in a uterus cavity.
Placenta prelying — such arrangement of a placenta in the bottom department of a uterus at which the placenta in full or in part closes an internal part of the channel of a neck of a uterus (an internal pharynx). If the placenta edge is located near to an internal pharynx (on distance less than 6 sm), but does not reach it, such condition is called as a low arrangement of a placenta.
The main reasons conducting to placentae, — a pathology of a mucous membrane of a uterus owing to inflammatory processes, abortions, pathological sorts, infantility, anomalies of development of a uterus, (located under a mucous membrane) uterus myomas. egg thus does not find necessary conditions for implantation in the top segment of a uterus (that is observed in norm) owing to what it falls to a uterus bottom (its bottom segment).
At full prelying of a placenta the bleeding arises in terms of 25-30 weeks and repeats more often, than at its partial prelying. At partial prelying of a placenta the bleeding can arise for the first time only during sorts. The bleeding arises owing to partial placentae.
The bleeding at placentae arises suddenly, is not accompanied by painful sensations, quite often arises at full rest and even during a dream, periodically repeats, that leads to an anaemia (anaemia).
It is possible to confirm the diagnosis of prelying of a placenta by means of ultrasonic inspection which allows to define the placenta location in a uterus cavity.
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