Wednesday December 12, 2018

Study: Smoking During Pregnancy can Cause Hearing Loss in Baby

Children who were exposed to tobacco smoke during pregnancy and second-hand smoke at 4 months had a 2.4 times increased relative risk

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Pregnancy is safe for breast cancer survivors: Experts. Pixabay
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If you are planning to start motherhood, quit smoking, say researchers. Exposing your baby to tobacco smoke during pregnancy or after the birth may cause hearing impairment in them.

According to the researchers, babies who were exposed to smoking during pregnancy had a 68 per cent increased relative risk of developing hearing problems.

“This study clearly shows that preventing exposure to tobacco smoke during pregnancy and postnatally may reduce the risk of hearing problems in children,” said Koji Kawakami from the Kyoto University in Japan.

The study, published in the journal Pediatric and Perinatal Epidemiology, included data from 50,734 children aged 3 years.

Representational image.
Representational image. Pixabay

Out of the group, 3.8 per cent were exposed to smoking only during pregnancy, 3.9 per cent were exposed only to second-hand smoke at 4 months and 0.9 per cent were exposed to tobacco smoke during pregnancy and at 4 months.

The results showed that the prevalence of hearing impairment among babies aged three who were exposed to smoke was 4.6 per cent while those exposed to only second-hand smoke at 4 months had a 30 per cent increased relative risk.

Also Read: Research Shows Smoking Affects Leg Muscles

Children who were exposed to tobacco smoke during pregnancy and second-hand smoke at 4 months had a 2.4 times increased relative risk.

“The findings remind us of the need to continue strengthening interventions to prevent smoking before and during pregnancy and exposure to second-hand smoke in children,” Kawakami added. (IANS)

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First Successful Case Of Womb Transplant in Brazil

In the Brazilian case, the recipient had been born without a uterus due to a condition called Mayer-Rokitansky-Küster-Hauser syndrome. The donor was 45 and died of a stroke.

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Womb Transplant
Medical team hold the first baby born via uterus transplant from a deceased donor at the hospital in Sao Paulo, Brazil. VOA

A woman in Brazil who received a womb transplanted from a deceased donor has given birth to a baby girl in the first successful case of its kind, doctors reported.

The case, published in The Lancet medical journal, involved connecting veins from the donor uterus with the recipient’s veins, as well as linking arteries, ligaments and vaginal canals.

It comes after 10 previously known cases of uterus transplants from deceased donors – in the United States, the Czech Republic and Turkey – failed to produce a live birth.

The girl born in the Brazilian case was delivered via caesarean section at 35 weeks and three days, and weighed 2,550 grams (nearly 6 lbs), the case study said.

Dani Ejzenberg, a doctor at Brazil’s Sao Paulo University hospital who led the research, said the transplant – carried out in September 2016 when the recipient was 32 – shows the technique is feasible and could offer women with uterine infertility access to a larger pool of potential donors.

Womb
. The woman’s previously fertilized and frozen eggs were implanted after seven months and 10 days later she was confirmed pregnant.. Pixabay

The current norm for receiving a womb transplant is that the organ would come from a live family member willing to donate it.

“The numbers of people willing and committed to donate organs upon their own deaths are far larger than those of live donors, offering a much wider potential donor population,” Ejzenberg said in a statement about the results.

She added, however, that the outcomes and effects of womb donations from live and deceased donors have yet to be compared, and said the technique could still be refined and optimised.

The first baby born after a live donor womb transplant was in Sweden in 2013. Scientists have so far reported a total of 39 procedures of this kind, resulting in 11 live births.

Experts estimate that infertility affects around 10 to 15 percent of couples of reproductive age worldwide. Of this group, around one in 500 women have uterine problems.

Before uterus transplants became possible, the only options to have a child were adoption or surrogacy.

Infants, baby, WOmb
The case, published in The Lancet medical journal, involved connecting veins from the donor uterus with the recipient’s veins. Pixabay

In the Brazilian case, the recipient had been born without a uterus due to a condition called Mayer-Rokitansky-Küster-Hauser syndrome. The donor was 45 and died of a stroke.

Also Read: Pregnancy is Possible For Survivors of Breast Cancer

Five months after the transplant, Ejzenberg’s team wrote, the uterus showed no signs of rejection, ultrasound scans were normal, and the recipient was having regular menstruation. The woman’s previously fertilized and frozen eggs were implanted after seven months and 10 days later she was confirmed pregnant.

At seven months and 20 days – when the case study report was submitted to The Lancet – the baby girl was continuing to breastfeed and weighed 7.2 kg (16 lb). (VOA)