I’ve seen a ton of different posts and discussions about COVID-19 lately, so I thought it would be interesting to create a thread that includes my reasons to wait. I’m a microbiology professor and have been a science educator for years, so this stuff is my bread and butter. Now, I personally have chosen to wait, but I am taking the Emily Oster approach here: thinking about the data and presenting my case. You have different life circumstances, are a different age, and overall a different risk profile compared to me, so take this information and do what you will:
The total number of women who did need a ventilator was small, though, but the American College of Obstetricians and Gynecologists is now recommending counseling patients on this risk, see also: https://www.acog.org/clinical/clini...isory/articles/2020/03/novel-coronavirus-2019
2) There is a startling number of stillbirths happening.
In one study from St. George’s University Hospital, researchers found a significant increase in number of stillbirths. There is no evidence that any of the mothers had COVID-19 and none tested positive. This is probably evidence that there is a reduction in medical intervention that prevents stillbirths- moms are more hesitant to go to the hospital if they don’t feel movement, etc.
From: https://jamanetwork.com/journals/jama/fullarticle/2768389
3) COVID-19 patients show evidence of placental injury
In one study, women who tested positive were more likely to show increased issues with their placentas. Note that all mothers did have a live birth except for one. MVM stands for maternal vascular malperfusion, a form of placental damage normally associated with mothers with hypertension.
From: https://academic.oup.com/ajcp/article/154/1/23/5842018
Placentas with MVM are significantly associated with stillbirth.
From: https://obgyn.onlinelibrary.wiley.com/doi/10.1002/uog.16019
Placentas with MVM are associated with weight gain and lower birth rate in mothers with gestational diabetes.
From: https://pubmed.ncbi.nlm.nih.gov/28012449/
4) Fevers and other illnesses during pregnancy are associated with birth defects.
From: https://onlinelibrary.wiley.com/doi/full/10.1002/bdr2.1147
5) Previous pandemics have had life-long complications for babies in utero.
In one study, individuals where were in utero during the 1918 flu pandemic were associated with increased rates of cardiovascular disease, suggesting that placental damage or maternal illness may play a role in later-in-life health outcomes.
From: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2826837/
Now, this is only a REALLY short list of things. This disease has only even existed for 7 months- and more and more worrying symptoms and long-term consequences are being reported, which I won’t go into in this post. For me personally, this data suggests that waiting and collecting more data is the right approach for me. Will I try during the pandemic? I don’t know yet. I’m personally hopeful for a vaccine. This post doesn’t even touch the myriad of emotional reasons to wait or to try- and ultimately, that’s an immensely personal decision for everyone. I thought I would just help some people who maybe don’t know where to find the relevant information- or even start a conversation with their doctor. I’m NOT a doctor and this isn’t medical advice- this is just some information for you to use.
- Pregnant women who have COVID-19 are more likely to be hospitalized.
After adjusting for age, presence of underlying medical conditions, and race/ethnicity, pregnant women were significantly more likely to be admitted to the intensive care unit and receive mechanical ventilation. There was no difference in death rates (which may suggest that women who are pregnant are more likely to be admitted to the ICU for reasons relating to their pregnancy rather than their COVID status.)
The total number of women who did need a ventilator was small, though, but the American College of Obstetricians and Gynecologists is now recommending counseling patients on this risk, see also: https://www.acog.org/clinical/clini...isory/articles/2020/03/novel-coronavirus-2019
2) There is a startling number of stillbirths happening.
In one study from St. George’s University Hospital, researchers found a significant increase in number of stillbirths. There is no evidence that any of the mothers had COVID-19 and none tested positive. This is probably evidence that there is a reduction in medical intervention that prevents stillbirths- moms are more hesitant to go to the hospital if they don’t feel movement, etc.
The incidence of stillbirth was significantly higher during the pandemic period (n = 16 [9.31 per 1000 births]; none associated with COVID-19) than during the prepandemic period (n = 4 [2.38 per 1000 births]) (difference, 6.93 per 1000 births [95% CI, 1.83-12.0]; P = .01) (Table 2), and the incidence of stillbirth was significantly higher when late terminations for fetal abnormality were excluded during the pandemic period (6.98 per 1000 births vs 1.19 in the prepandemic period; difference, 5.79 [95% CI, 1.54-10.1]; P = .01). There were no significant differences over time in births before 37 weeks’ gestation, births after 34 weeks’ gestation, neonatal unit admission, or cesarean delivery.
From: https://jamanetwork.com/journals/jama/fullarticle/2768389
3) COVID-19 patients show evidence of placental injury
In one study, women who tested positive were more likely to show increased issues with their placentas. Note that all mothers did have a live birth except for one. MVM stands for maternal vascular malperfusion, a form of placental damage normally associated with mothers with hypertension.
Relative to controls, COVID-19 placentas show increased prevalence of decidual arteriopathy and other features of MVM, a pattern of placental injury reflecting abnormalities in oxygenation within the intervillous space associated with adverse perinatal outcomes. Only 1 COVID-19 patient was hypertensive despite the association of MVM with hypertensive disorders and preeclampsia. These changes may reflect a systemic inflammatory or hypercoagulable state influencing placental physiology.
From: https://academic.oup.com/ajcp/article/154/1/23/5842018
Placentas with MVM are significantly associated with stillbirth.
From: https://obgyn.onlinelibrary.wiley.com/doi/10.1002/uog.16019
Placentas with MVM are associated with weight gain and lower birth rate in mothers with gestational diabetes.
From: https://pubmed.ncbi.nlm.nih.gov/28012449/
4) Fevers and other illnesses during pregnancy are associated with birth defects.
Maternal report of cold or flu with fever was significantly associated with 8 birth defects (anencephaly, spina bifida, encephalocele, cleft lip with or without cleft palate, colonic atresia/stenosis, bilateral renal agenesis/hypoplasia, limb reduction defects, and gastroschisis) with elevated adjusted odds ratios ranging from 1.2 to 3.7. Maternal report of cold or flu without fever was not associated with any of the birth defects studied.
From: https://onlinelibrary.wiley.com/doi/full/10.1002/bdr2.1147
5) Previous pandemics have had life-long complications for babies in utero.
In one study, individuals where were in utero during the 1918 flu pandemic were associated with increased rates of cardiovascular disease, suggesting that placental damage or maternal illness may play a role in later-in-life health outcomes.
Prenatal exposure to the 1918 influenza pandemic (Influenza A, H1N1 subtype) is associated with ≥20% excess cardiovascular disease at 60 to 82 years of age, relative to cohorts born without exposure to the influenza epidemic, either prenatally or postnatally (defined by the quarter of birth), in the 1982–1996 National Health Interview Surveys of the USA. Males showed stronger effects of influenza on increased later ischemic heart disease than females. Adult height at World War II enlistment was lower for the 1919 birth cohort than for those born in adjacent years, suggesting growth retardation. Calculations on the prevalence of maternal infections indicate that prenatal exposure to even uncomplicated maternal influenza may have lasting consequences later in life. These findings suggest novel roles for maternal infections in the fetal programming of cardiovascular risk factors that are independent of maternal malnutrition.
From: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2826837/
Now, this is only a REALLY short list of things. This disease has only even existed for 7 months- and more and more worrying symptoms and long-term consequences are being reported, which I won’t go into in this post. For me personally, this data suggests that waiting and collecting more data is the right approach for me. Will I try during the pandemic? I don’t know yet. I’m personally hopeful for a vaccine. This post doesn’t even touch the myriad of emotional reasons to wait or to try- and ultimately, that’s an immensely personal decision for everyone. I thought I would just help some people who maybe don’t know where to find the relevant information- or even start a conversation with their doctor. I’m NOT a doctor and this isn’t medical advice- this is just some information for you to use.