Women are disproportionately effected by the complications and disease outcome of COVID-19 compared to men.

Gender-specific conditions have the potential to worsen the heart and lung damage caused by this virus. COVID-19 is a vascular disease. Women, compared to men, have smaller blood vessels, which can become dysfunctional and affect the body’s ability to deliver oxygen and nutrients to the heart. This microvascular dysfunction leads to ischemia which results in plaque erosion, clot formation and a potential cardiovascular event, such as a heart attack or stroke.

Other risk factors include polycystic ovarian disease, early onset puberty and the fact that women have higher incidences of autoimmune disease–putting them at risk for cytokine storms (hyper-responses of the immune system). Even though males have higher plasma levels of immune cytokines (immune cells called to the site of infection), women with higher levels of these cytokines were associated with worse disease progression and outcome than men.

The risks to women who have had problem pregnancies (preeclampsia, gestational diabetes) and women going through menopause are also notable. Estrogen helps prevent cardiovascular disease, and as their estrogen levels decline, menopausal women experience a higher likelihood of developing heart disease. Depression increases the risk of heart attack in women by 50% although researchers are unsure why. Severe shock can also take its toll on women. Broken heart syndrome, or takotsubo cardiomyopathy can cause fatal heart damage to mostly menopausal and postmenopausal women who have undergone a sudden stress such as losing a spouse, a car accident or being a victim of a violent crime.

Effective therapy and prevention is needed which starts with educating women in knowing their risks.

Gender differences for increased heart disease were already in place before COVID-19, but it is important to understand the increased risk factors for women that present themselves due to the nature of this virus.

https://www.nature.com/articles/s41586-020-2700-3

 

 

As legalization of marijuana spreads, 7% of pregnant women in the U.S. are using this unregulated drug to help reduce morning sickness. But is it safe?

In some states that legalize marijuana, dispensaries can be as common as coffee shops. Like smoking cigarettes or alcohol consumption, anyone over the age of 21 can easily walk into a store and buy a variety of compounds recreationally for their own use. But there are risks to be aware of, especially for pregnant women. Are the people behind the counter knowledgable enough to give sound advice to pregnant women seeking medical advice?

A study at the University of Colorado looked into the type of information being provided by staff members of marijuana dispensaries. Investigators posed as 8-week pregnant patients and called 465 dispensaries which resulted in useful information from 400 locations. Investigators asked employees if they had products that were “safe for morning sickness.” Other questions were about any known risks to the mother or baby with taking these products and whether they should check with their own health care provider. Results were: 69% of staff members recommended marijuana products for morning sickness, and 36% said that it was safe to use in pregnancy. Only 32% recommended that the patient check with her physician, but after prompting, 81% eventually recommended it.

This may not be happening in every state, but this study gives you a glimpse of how many pregnant women are likely not asking their provider for advice on the safety of using marijuana for morning sickness. But instead are seeking medical advice from marijuana sales people who not only have a conflict of interest and lack of medical knowledge but also a lack of cautionary approach on the topic.

Currently marijuana products contain from 0.3% tetrahydrocannabinol (THC) up to 15% and, even some concentrations up to more than 50% THC. THC acts on CB1 receptors that have psychotropic effects. Cannabidiol (CBD) acts through its effects on serotonin and not CB1 receptors for the most part. Cannabis, the marijuana plant, contains up to 100 cannabinoids with the two that we most know about described above. Dependence and addiction affects about 9% of users. This is compared to 15% of the population addicted to alcohol. This can lead to the risk of addiction to the newborn, let alone other potential consequences of cannabinoid exposure in utero.

There have been studies showing that children exposed in utero to cannabis performed more poorly in visual problem solving, motor coordination, had attention deficits and childhood sleep problems for up to a decade compared to unexposed children. Yes, thats right. According to a University of Colorado, Boulder study and lead author John Hewitt, director of CU’s Institute for Behavioral  Genetics, marijuana use can impact children’s sleep long term!!

Other potential effects include increased risk of stillbirth, low birth weight (if using cannabis more than once per week) and  preterm labor (those using cannabis and smoking cigarettes). A few older studies have not shown any differences in adverse outcomes with pregnant users vs nonusers. With marijuana products not being regulated and not knowing the specific ratios of THC/CBD,  it can be very confusing to know what may harm mother and/or baby.

One thing for sure, marijuana use has not been proven to be safe in pregnancy. It is recommended not to use cannabis products during pregnancy-whether for recreational or medical purposes. Consult your practitioner about other safe and effective natural options for nausea and vomiting of pregnancy.

The medical use of cannabis is legal with physician prescription in  35 states. The recreational use is legal in 14 states.

Even though the use of cannabis is federally illegal, some of its derivative compounds have been approved by the Food and Drug Administration fo prescription use. For non-prescription use, cannabidiol derived from industrial hemp is legal at the federal level, but legality and enforcement varies by state. This map can identify what your state laws are regarding the use of marijuana  State map of marijuana.

References: https://disa.com/map-of-marijuana-legality-by-state

Dicson, B, et al. Recommendations from cannabis dispensaries about first-trimester cannabis use. Obstet Gynecol. 2018;131: 1031-1038.

Hudson, T. Marijuana in Pregnancy-Please Don’t. Townsend Letter. Women’s Health Update. Feb/March 2019. p. 30-33.

 

About 6- 15% of myocardial infarctions (heart attacks) are associated with nonobstructive coronary disease on angiography. This means that far less than 50% of heart attacks are due to blocked arteries. Also, these types of heart attacks occur more commonly in women.

A multinational study was done in which investigators enrolled 170 women with myocardial infarction with nonobstructive coronary arteries (MINOCA). These women were scheduled to undergo cardiac magnetic resonance imaging (MRI) and coronary optical coherence tomography (OCT). The OCT test uses infrared light to acquire cross-sectional images of the coronary artery using an intravascular catheter. This allows it to have a higher resolution than intravascular ultrasound.

In 145 women who underwent OCT, 67 had a possible or definite culprit lesion, such as plaque rupture or layered plaque. In 116 women who had an MRI, 62 had an ischemic (reduced blood flow) pattern of abnormalities and 24 had a nonischemic pattern, such as myocarditis or nonischemic cardiomyopathy (heart disease causing an enlarged heart). Overall,  A cause for MINOCA was identified in 98 women, with an ischemic etiology in 74, and nonischemic in 24 women.

This study shows the benefit of using multiple imaging tests to identify the mechanism of MINOCA in most cases. It showed almost two thirds of cases related to an ischemic cause, despite the absence of severe obstructive coronary disease by angiography. Women tend to have microvascular disease which affects them four times more than men. They also have different symptoms of myocardial infarction than men. Both genders can exhibit symptoms of chest pain or discomfort but women are more likely to experience shortness of breath, nausea/vomiting and back or jaw pain. It’s best for physicians to order multimodality imaging especially for women with these symptoms to prevent the progression of a heart attack.

Reference: Reynolds, HR et al. Coronary optical coherence tomography and cardiac magnetic resonance imaging to determine underlying causes of MINOCA in women. Circulation 2020 Nov 14; [e-pub]. (https://doi.org/10.1161/CIRCULATIONHA.120.052008).