Heart Health During Pregnancy: A Critical Warning for Women’s Long-Term Wellness

The Hidden Dangers of Pregnancy-Related Heart Complications

As we observe American Heart Month, medical experts are sounding an important alarm about a health issue that doesn’t get nearly enough attention: the connection between heart problems during pregnancy and long-term cardiovascular risks for women. While pregnancy is often celebrated as a joyful time in a woman’s life, it can also serve as a revealing window into her future heart health. The statistics are sobering—cardiovascular disease has become the number one cause of pregnancy-related deaths in the United States, according to the American College of Obstetricians and Gynecologists. Even more concerning is that experiencing heart issues during pregnancy can dramatically increase a woman’s lifetime risk of serious cardiovascular problems, including stroke, heart attack, and chronic high blood pressure, by 60% or more depending on the specific complication. Dr. Jennifer Haythe, a cardiologist and director of the cardio-obstetric program at Columbia University Irving Medical Center, puts it simply but powerfully: “Pregnancy is like a stress test on the heart.” This nine-month journey puts extraordinary demands on a woman’s cardiovascular system, and for some women, it reveals underlying problems that might otherwise have gone undetected for years.

Understanding How Pregnancy Challenges the Heart

To understand why pregnancy poses such significant cardiovascular challenges, it’s important to recognize the remarkable changes a woman’s body undergoes during these nine months. The heart and blood vessels don’t just continue working as usual—they undergo substantial structural and functional transformations to meet the demands of supporting both mother and growing baby. The heart must pump significantly more blood throughout the body, and the entire cardiovascular system essentially recalibrates itself for this enormous task. For women with existing heart conditions—whether diagnosed or unknown—these changes can unmask problems that weren’t apparent before. During pregnancy and the peripartum period (the time immediately before and after giving birth), women with cardiovascular disease may become much more symptomatic, experiencing warning signs that shouldn’t be ignored.

Beyond pre-existing conditions, pregnancy itself can trigger new heart-related problems. Gestational hypertension and pre-eclampsia are conditions unique to pregnancy that cause dangerous spikes in blood pressure. Gestational diabetes, another pregnancy-specific condition, can affect how the body processes sugar and contribute to cardiovascular stress. Perhaps most concerning is cardiomyopathy, a condition where the heart muscles struggle to pump blood efficiently. This can develop during pregnancy or reveal itself during this time if it existed beforehand. All of these conditions put additional strain on a cardiovascular system that’s already working overtime, creating a perfect storm for both immediate and long-term health consequences.

The Alarming Trend: Rising Deaths and Changing Demographics

The numbers paint a troubling picture of maternal health in America. Over the past three decades, pregnancy-related deaths have surged by a staggering 140%, according to the American Heart Association. This isn’t just a small uptick—it represents a fundamental shift in the safety of pregnancy and childbirth in the United States. One significant factor driving this increase is the changing demographics of motherhood. Women are waiting longer to have children than previous generations, and this shift in timing has profound implications for heart health during pregnancy. During the same thirty-year period that saw pregnancy-related deaths skyrocket, the average age of first-time mothers rose from about 21 years old to approximately 27.5 years old. While there are many good reasons women choose to delay motherhood—pursuing education, establishing careers, achieving financial stability—this trend comes with increased cardiovascular risks.

As Dr. Haythe explains, older mothers face a compound challenge: “Women are having children much later, and so they are at increased risk for heart disease because they tend to have more risk factors. Because they’re older, they may have underlying hypertension, diabetes, high cholesterol, obesity, a sedentary lifestyle.” These risk factors don’t develop overnight—they accumulate over years of living, and by the time a woman reaches her late twenties, thirties, or forties, they can create a dangerous foundation when combined with the stress of pregnancy. The statistics bear this out dramatically: women over 40 years old face a heart disease-related maternal death risk that is thirty times greater than women under 20. This isn’t meant to discourage women from having children later in life, but rather to emphasize the critical importance of heart health awareness and medical monitoring for all pregnant women, particularly those in older age groups.

The Long Shadow: How Pregnancy Complications Affect Future Health

Perhaps one of the most underappreciated aspects of pregnancy-related heart problems is how they continue to affect women’s health long after their babies are born. The metabolic stress and vascular changes associated with pregnancy complications don’t simply disappear once pregnancy ends—they leave lasting impacts on the cardiovascular system that can manifest years or even decades later. Research shows clear connections between pregnancy complications and increased risks of heart failure, heart attacks, and strokes later in life, though scientists are still working to understand exactly why these links exist. The data is particularly striking for women who experienced hypertensive disorders during pregnancy. These women face a two-to-four-fold higher risk of developing chronic hypertension ten or more years down the road compared to women who had normal blood pressure throughout their pregnancies. This represents a massive increase in risk that could potentially be managed or even prevented with proper awareness and medical care.

Dr. Anais Hausvater, a cardiologist and co-director of the cardio-obstetrics research program at NYU Langone Health, emphasizes the importance of ongoing monitoring: “If you had any pregnancy outcomes like preeclampsia, like hypertensive disorders of pregnancy, like gestational diabetes, you should be evaluated for your cardiovascular risk assessment, and you should be followed for cardiovascular risk assessment every year.” This isn’t optional healthcare—it’s essential preventive medicine that could save lives. Unfortunately, many women don’t realize that their pregnancy complications have implications for their long-term health, and many doctors don’t adequately connect a patient’s obstetric history with her current cardiovascular risk profile. This gap in awareness and care needs to close if we’re going to address the rising tide of heart disease in women.

Prevention and Early Intervention: A Message of Hope

Despite these sobering statistics and warnings, there is genuinely good news in this story. According to the Centers for Disease Control and Prevention, approximately 80% of pregnancy-related deaths—including those caused by heart-related complications—are preventable. That’s a remarkable and hopeful statistic that should motivate both women and their healthcare providers to take action. The key to prevention lies in early and comprehensive prenatal care, regular monitoring throughout pregnancy, and—critically—timely follow-up care in the weeks, months, and years after giving birth. Dr. Hausvater particularly emphasizes that heart health attention shouldn’t be limited to older mothers or women with known risk factors. Even young women should focus on their cardiovascular health before conception, throughout pregnancy, and in the postpartum period. “We know that the earlier you start to optimize your heart health, the lower your risk,” she explains. “And pregnancy and postpartum can be a really ideal time where women are hooked in with the medical system to kind of establish and start to make those changes.”

This perspective reframes pregnancy not just as a time of vulnerability, but as an opportunity—a window when women are naturally more engaged with healthcare and therefore more receptive to making positive lifestyle changes. Whether it’s improving diet, increasing physical activity (as appropriate during pregnancy), managing stress, monitoring blood pressure, or addressing other risk factors, the pregnancy period and the months following it offer a unique chance to establish healthier patterns that can last a lifetime. The medical community needs to embrace this opportunity by ensuring that cardiovascular screening and counseling become standard parts of prenatal and postpartum care.

Your Obstetric History Matters: A Lifetime Perspective on Women’s Heart Health

The final and perhaps most important message from experts is one that every woman—and every healthcare provider—needs to internalize: your gynecologic and obstetric history is not separate from your overall medical history. As Dr. Haythe states clearly, “Your gynecologic and obstetric history is an integral part of your medical history. It should not be overlooked or forgotten when you see your doctor.” Too often, there’s a disconnect between a woman’s experience during pregnancy and her ongoing healthcare in subsequent years. A woman might see an obstetrician during pregnancy who notes concerning blood pressure readings or other warning signs, but this information doesn’t always make it into her primary care records or get flagged as important for her long-term cardiovascular monitoring. Years later, when she’s seeing a different doctor for a routine checkup or a new health concern, that critical history might not even come up.

Breaking down these silos in healthcare is essential. Women need to be proactive in sharing their pregnancy histories with all their healthcare providers, and doctors need to ask about and pay attention to these histories as important predictors of future health risks. If you experienced preeclampsia, gestational diabetes, gestational hypertension, or any other pregnancy complication, make sure every doctor you see knows about it. This information should be as prominently featured in your medical record as your family history of heart disease or your cholesterol numbers. For healthcare systems and providers, this means developing better protocols for tracking women’s health across the lifespan, ensuring that information from pregnancy gets incorporated into long-term risk assessments and prevention strategies. As we observe American Heart Month and think about cardiovascular health, let’s remember that for women, heart health begins not just in middle age or when symptoms appear, but potentially during pregnancy—and the knowledge and care received during that time can make all the difference for decades to come.