Sunday, August 27, 2017

Trying to Understand Stillbirths


Stillbirths affects 1% of all pregnancies in US, amounting to nearly 24,000 deaths every year. Recent advances in medicine has brought down the neonatal and infant mortality considerably in last decade, but the decline is still birth rate is very slow.

A lack of understanding of the mechanisms behind it coupled with inability to predict stillbirth has prevented significant improvement in stillbirths’ rate.

Although altered fetal growth and placental abnormalities are strongest predictors of stillbirths but all patients with placental abnormalities do not end up in stillbirths, reflecting our lack of understanding of this interrelationship.

This population based case control study included 613 women who had stillbirths and 1747 women who had live births and who consented to placental pathological examination from 59 hospitals in 5 geographic areas in the U.S.

Study was published online August 18, 2017 in Journal PloS one.
About 15 placental pathologies were most prevalent in women with stillbirths and fetal growth abnormalities.

Out of 15, ten were also associated with fetal growth retardations. These are: single umbilical artery; velamentous insertion; terminal villous immaturity; retroplacental hematoma; parenchymal infarction; intraparenchymal thrombus; avascular villi; placental edema; placental weight; ratio birth weight/placental weight)

The other 5 (acute chorioamnionitis of placental membranes; acute chorioamionitis of chorionic plate; chorionic plate vascular degenerative changes; perivillous, intervillous fibrin, fibrinoid deposition; fetal vascular thrombi in the chorionic plate) resulted in stillbirths without altered fetal growth.  

Terminal villous hypoplasia was equally common in live born and still born fetuses with altered fetal growth.

Maternal factors associated with still births were gestational hypertension/pre-eclampsia (20% versus 11%, p<0.001), hypertension before pregnancy (11% versus 5%, p<0.001), and pregestational diabetes (7% versus 2%, p<0.001)

Fetal factors associated with still births were congenital malformations (13% versus 3%, p<0.001), lower birth weight (median 1,949 versus 3,321 grams, p<0.001), and lower GA (median 33 versus 39 weeks, p<0.001).

The study results suggest that different mechanisms exist for disruption in placental function and the results vary according to timing of gestation. An acute insult results in still births but no fetal growth alterations while a chronic, low level insult results in fetal growth retardation which may end up in still births.

Some of these placental findings can be diagnosed with prenatal ultrasound and pregnancies managed accordingly, Similarly, birth weight to placental weight ratio could be estimated antenatally by ultrasound and those pregnancies with abnormal ratio and at risk of stillbirths could benefit from early  term delivery.

Access the abstract, Full Text.


2 comments:

  1. I found out, that taking herbal treatment is the best to get rid of hpv as soon as i feel the symptoms of hpv is appearing, i took the healing process by contacting Dr onokun for natural treatment it works wonders, amazingly ever since I had the herbal treatment i have not feel these horrible disease anymore and my doc told me the virus is gone, i am glad i finally got cured out from this horrible disease. every hpv or herpes patients should also get in touch with this herbalist Dr to get ride of these disease forever his email address; dronokunherbalcure@gmail.com

    ReplyDelete
  2. Do you know that there is a great herbal doctor who can cure any deadly disease like herpes, hiv/aids, cancer, syphilis, madness, hepatitis b, STD e.t.c. well my main purpose of wACriting this to the whole world is about the great deeds DR ODOMA  did for me. I was diagnosed of a deadly disease called HIV/AIDS since the year 2000, ever since then i have been taking medications on till i met a great herbal doctor. though i never believed in Herb medicine, i saw many testimonies on how he cured so many people and i decided to contact him. so i contacted him through his email, he gave me a form to fill, i filled it and send it back to him and then he told me that he would require some items to prepare a herbal medicine for me. i did'nt know were to find the items, and he told me that the only alternative is to help me get the items and he helped me purchase the items from the items seller. i promised my self to do anything to get cured, so i sent him the money and he prepared a medicine for me and he told me how i will be taking it. he asked me to have faith and believed in him which i did, 7 days latter he asked me to go for a check-up, when i did the check-up i was tested HIV Negative. All thanks to DR ODOMA. if you are passing through suffering and hardship and you need a way out , i advice you kindly contact him via his email on    drodomasolutionhome20@gmail.com  . you can also WhatsApp +2348100649947
    he is a specialist in all kind of sickness and he can bring your EX back with his great spell.

    CURES,CASTING SPELL
    HIV/AIDS,
    CANCER,
    HERPES,
    HEPATITIS B AND C,
    HERB FOR PREGNANCY,
    PROTECTION,
    EX BACK,
    GOOD LUCK,
    PROMOTION,
    ETC.
    EMAIL: drodomasolutionhome20@gmail.com
    or whatsapp +2348100649947

    ReplyDelete