Undergoing in vitro fertilization using frozen embryos is linked to a greater risk of hypertensive disorders, including preeclampsia, during pregnancy.
The new study looked at data on 4.5 million pregnancies in Norway from 1988 through 2015. The group included 4.4 million naturally conceived pregnancies and compared them to just over 78,000 IVF pregnancies conceived using a fresh embryo and about 18,000 using a frozen embryo. About 33,000 of the pregnancies were in women who had more than one pregnancy.in the U.S. born in 2020 were the result of assisted reproductive technology, which includes IVF.
Exactly why using a frozen embryo increases a woman’s risk of a hypertensive disorder remains unclear, but one hypothesis is the absence of a temporary organ called the corpus luteum. “In artificial frozen transfers, that corpus luteum is bypassed. But in fresh transfers, it’s still present,” Petersen said.published in Hypertension in 2019 found that women who conceive without a corpus luteum have a higher risk of preeclampsia. It also found that the risk of preeclampsia was elevated in women who had a frozen transfer but not in those who received a fresh embryo during IVF.
Deutschland Neuesten Nachrichten, Deutschland Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
Frozen embryos linked to increased risk of hypertensive disorders during pregnancy, study findsA study of 4.5 million women found that risk went up when frozen embryos were used, compared to fresh embryos.
Weiterlesen »
Does Exercise Reduce Risk for Gestational Diabetes?Physicalactivity early in pregnancy may decrease the risk of gestational diabetes and reduce the increased risk of the condition among women with a genetic predisposition, according to new research. ObGynTwitter MedTwitter
Weiterlesen »
US teens are drinking, smoking less but vaping, using marijuana more, study findsCannabis use increased among all groups during the 28-year study period, but especially among teen workers, the researchers said.
Weiterlesen »
Increased Risk of COVID-19 Infection Linked to Excess Weight Not High Blood SugarHigh pre-pandemic BMI is associated with a greater risk of COVID-19 infection and long COVID, but there was little evidence that high blood sugar levels or diabetes increase the risk.
Weiterlesen »
COVID-19 Linked to Increased Alzheimer's RiskCOVID-19 has been linked to a significantly increased risk for new-onset Alzheimer's disease. However, researchers are quick to note that study provides no evidence of causation.
Weiterlesen »