Leste at Ryggleie gir økt fare for dødfødsel

[AnonymBruker]

Hvis jeg forsto det rett så gjelder dette særlig 3. trimester, selv bare 1/2 time påvirket barnet..men merker man selv når man er kommet til tiden der det ikke er bra.. er i uke 18, og ligger titt ofte på ryggen- særlig når jeg  slapper av, ser tv - men også av og til når jeg sover..

Anonymkode: 38309...101

[AnonymBruker]

Når man ligger på ryggen som høygravid kan en stor blodåre komme i klem, men da vil du merke ubehag før baby merker noe sånn jeg forsto det. Det er ikke farlig å ligge på sofaen på ryggen så lenge det er mest komfortabelt for deg

Anonymkode: 9ba6a...070

[AnonymBruker]

Ja, før siste semesteret gjorde jeg vant til å ligge på høyre og venstre side. Skummelt det der og mirakel med et levende barn som blir født. Da tenker jeg på alt som plutselig kan gå galt.

Anonymkode: 25282...c3e

[AnonymBruker]

AnonymBruker skrev (1 time siden):

Hvis jeg forsto det rett så gjelder dette særlig 3. trimester, selv bare 1/2 time påvirket barnet..men merker man selv når man er kommet til tiden der det ikke er bra.. er i uke 18, og ligger titt ofte på ryggen- særlig når jeg  slapper av, ser tv - men også av og til når jeg sover..

Anonymkode: 38309...101

Vena cava-syndrom. Du blokkerer en blodåre som babyen trenger inn til morkaken. Alle har ikke dette, det er om du selv blir svimmel av å ligge på ryggen at det er et problem. Jeg våknet av at jeg sov mye på ryggen i første svangerskap, da var det ikke noe problem. I dette svangerskapet kan jeg ikke ligge på ryggen, kroppen sier ifra.

Forøvrig er magen så tung i tredje trimester at man ikke orker å ligge på ryggen ofte. Men man skal være ganske nøye med å ikke ligge så mye på ryggen hele svangerskapet, fordi babyen kan plassere seg feil i bekkenet - noe som gjør fødselen og barnets skruing ut mer vanskelig.

Så ha som prinsipp at du ligger på siden på sofaen, og ikke sitt bakoverlent i sofaen heller. Sitt på rumpeballene.

 

Anonymkode: 27e69...25f

[Gjest 96erjente]

Sannsynligvis orker du ikke ligge så mye på ryggen når du kommer lenger ut i svangerskapet😅 

[AnonymBruker]

Les Expect Better av Emily Oster. Hun har analysert faktiske data bak en del slike gravidmyter:

Basic advice: You're not supposed to sleep on your back. The theory is that as the uterus get larger (beyond 20 weeks or so), it can compress an important blood vessel. This decreases mom’s blood pressure, and can reduce blood flow to the placenta and baby. That this occurs is something we know from physiology. What is the more relevant question for you is whether there is any evidence that this actually has risks for the baby. If you wake up on your back, should you worry?  

As it turns out, the best evidence suggests no.

There are various ways one can try to figure this out. The first is to interrogate the basic biology. That is: wince there is a clear biological mechanism (reduced blood flow) we could actually test to see how important that is. How much is blood flow really restricted? 

In one very nice study of this, researchers made women lie on their back and measure the blood flow to the uterus. They found that lying down has no particularly bad impact on blood flow.  A couple of women in that study became uncomfortable, but felt better when they changed positions. The authors conclude that some women might be uncomfortable sleeping on their back, but if you are not one of them, you should feel fine about it. 

This paper was included as part of a review article about the topic. Their conclusion, which I think is clear and succinct, is as follows:

'".. advising women to sleep or lie exclusively on the left side is not practical and is irrelevant to the vast majority of patients. Instead, women should be told that a small minority of pregnant women feel faint when lying flat. Women can easily determine whether lying flat has this effect on them, and most will adopt a comfortable position that is likely to be a left supine position or variant thereof. ...since finding a comfortable position in bed in late pregnancy is not easy, physicians should refrain from providing impractical advice."

This review above concluded that the no-back-sleeping recommendation doesn’t make sense. When I was making this decision with Penelope, that was where the bulk of the evidence lay. 

But between Penelope’s birth and Finn’s, a study came out which showed a link between maternal sleep position and stillbirth.

The method in this study is straightforward. The researchers identified women who had a recent stillbirth, and interviewed them about their behaviors while pregnant. They also spoke to some women who had a healthy baby. The idea is to look for what behaviors differ in the two groups, and then conclude that those behaviors might have contributed to the stillbirth.

It turns out that sleeping on the back or the right side was associated with a higher rate of stillbirth. The effect is large: the stillbirth rate was about twice as high for women sleeping on their back. This study wasn’t perfect. The sample size is small and the researchers were testing a lot of different theories, not just sleep position. 

Most importantly: the underlying method in this study is a “case-control” approach — finding cases in which something bad happened, and then identifying a set of controls without this outcome. Women who had stillbirth in this sample were identified after the stillbirth, and asked about their behaviors while they were pregnant. This type of retrospective approach can generate recall bias, in which (for example) grieving mothers over-report non-recommended sleeping behaviors, perhaps in search of an explanation for their loss. 

In 2019, a new study — one not subject to this concern — came out on this topic. The key innovation in this study was that it was prospective. They recruited 8,706 women who were pregnant, and had them complete questionnaires in the first trimester and early in the third trimester about their sleep position. They then observed what happened, and coded whether there were any “adverse outcomes” in the pregnancy. This included stillbirth, but also infants who were small for gestational age or had other issues. 

The authors find no association between any adverse outcomes and sleep position either at the first visit in early pregnancy or the third visit in mid-pregnancy. Very unfortunately, there were some stillbirths and there were many more less serious complications, but these did not seem to be linked to sleep position.

Putting this together with the evidence at the top of this section on minimal changes in blood flow, along with the conclusions of that review article, the bulk of the evidence seems to reject the link between sleep position and stillbirth or other negative outcomes. It seems likely that the association we see in the case-control data is an effect of reporting. In the end, if back sleeping is comfortable for you (realistically, for most women it eventually becomes uncomfortable) the best data suggests it is fine.

Anonymkode: 1461f...54f

[AnonymBruker]

Jeg ville ikke tatt det som er klippet og limt inn over for god fisk sånn uten videre, med mindre det er publisert i The Lancet eller lignende. 
Da jeg var gravid med yngste sov jeg best på ryggen. Da jeg var på svangerskapskontroll mot slutten hadde babyen lav hjerterytme. Legen ba meg da legge meg sidelengs og målte hjerterytmen på nytt, og da var den normal. Jeg fikk beskjed om å ikke ligge på ryggen av denne grunn. 

Anonymkode: a4150...bee

[AnonymBruker]

AnonymBruker skrev (2 timer siden):

Jeg ville ikke tatt det som er klippet og limt inn over for god fisk sånn uten videre, med mindre det er publisert i The Lancet eller lignende. 
Da jeg var gravid med yngste sov jeg best på ryggen. Da jeg var på svangerskapskontroll mot slutten hadde babyen lav hjerterytme. Legen ba meg da legge meg sidelengs og målte hjerterytmen på nytt, og da var den normal. Jeg fikk beskjed om å ikke ligge på ryggen av denne grunn. 

Anonymkode: a4150...bee

Tilsvarende erfaring her og fikk samme beskjed av sykehusoverlegen når jeg var på tilvekstkontroll med barnet mitt. Dette var på poliklinikken for risikosvangerskap, så velger å tro at vedkommende kunne sine saker.

Anonymkode: 4cefa...8dd