If you delivered a baby early, you may want to pay closer attention to your heart health. A study published in the journal Hypertension shows that a history of preterm birth (defined as a birth before the 37th week of pregnancy) may bring health risks for not only for baby, but for mom, too.
The study found that women who delivered a baby preterm were more likely to experience rising blood pressures later, compared to women who delivered closer to term. If they had this pattern, they were also more likely to show signs of coronary artery disease, which is associated with an increased risk of heart attack and stroke.
Because of the unique demands that pregnancy places on a woman’s body, it may serve as a stress test for a woman’s heart, says Dr. JoAnn E. Manson, the Michael and Lee Bell Professor of Women’s Health at Harvard Medical School. Pregnancy-related conditions (for example, gestational diabetes and pre-eclampsia) are known to raise a woman’s risk of developing cardiovascular disease. Preterm birth should now join that list, says Dr. Manson.
“I think this study adds to the mounting evidence that preterm birth is yet another complication of pregnancy that indicates a higher risk of cardiovascular disease in the mother,” she says.
The association between early birth and heart disease risk
The study looked at data from more than 1,000 mothers in several major US cities. Researchers divided the women into three categories — “low stable,” “moderate,” and “moderate increasing” — based on how their systolic blood pressure (the first number in a reading) changed over time. Women who had what was defined as “moderate increasing” blood pressure were 19% more likely to have delivered a baby early than women with “low stable” blood pressure. In addition, more than 38% of the “moderate increasing” group developed coronary artery calcifications (a marker for higher risk of future heart attack), seen on CT heart scans, compared with 12.2% of the “low stable” group. Women who had both a preterm delivery and “moderate increasing” blood pressure had more than double the risk of developing arterial calcifications, compared with women who delivered at term and had a lower blood pressure pattern.
The associations researchers found were stronger in women who experienced high blood pressure conditions during pregnancy, but were also found in women who did not. Interestingly, women who had a “moderate increasing” blood pressure pattern but delivered a full-term baby didn’t seem to have excess risk for artery calcifications.
But not all preterm births bring the same potential heart risks. The study authors found that a preterm birth alone wasn’t enough to raise risk. That happened only when women had both a preterm birth and a pattern of increasing blood pressure in the years that followed. This may be the case because there are other factors that can result in a preterm birth, such as carrying twins or other multiples, or having a physical problem with the cervix, says Dr. Manson. For women with such conditions, a preterm delivery would not be expected to reflect higher cardiovascular risks, says Dr. Manson.
If you gave birth early, pay attention to all heart disease risk factors
Having a preterm birth or other pregnancy-related complications doesn’t mean you are doomed to develop cardiovascular disease. Steps you can take to reduce your risk include the following:
- Discuss your pregnancy history with your doctor. Your doctor should be aware that you delivered preterm and should also know about any other pregnancy-related complications you had, such as gestational diabetes or pre-eclampsia — and should understand that it may raise your risk for future heart disease.
- Track your blood pressure. “Your blood pressure should be monitored closely, at least once a year, and preferably more often,” says Dr. Manson. Self-monitoring using a blood pressure machine monthly at home might also help you spot troubling trends early. Blood pressure should ideally remain below 120/80 mm Hg. If it rises above that level, discuss it with your doctor.
- Maintain a healthy diet and lifestyle. It’s been said a million times before, but eating a well-balanced diet rich in fruits, vegetables, and whole grains can help head off cardiovascular disease. Avoid excess sodium, red meat, and heavily processed foods whenever possible. And of course, don’t smoke, and make time to squeeze in regular exercise.
Bible verses for today’s meditation and inspiration: Matthew E. McLaren
Your beauty should not come from outward adornment, such as elaborate hairstyles and the wearing of gold jewelry or fine clothes. Rather, it should be that of your inner self, the unfading beauty of a gentle and quiet spirit, which is of great worth in God’s sight. 1 Peter 3:3-4 NIV
Above all else, guard your heart, for everything you do flows from it. Proverbs 4:23 NIV
As water reflects the face, so one’s life reflects the heart. Proverbs 27:19 NIV
May he give you the desire of your heart and make all your plans succeed. Psalm 20:4 NIV
The heart is deceitful above all things and beyond cure. Who can understand it? “I the Lord search the heart and examine the mind, to reward each person according to their conduct, according to what their deeds deserve.” Jeremiah 17:9-10 NIV
You will seek me and find me when you seek me with all your heart. Jeremiah 29:13 NIV
Let love and faithfulness never leave you; bind them around your neck, write them on the tablet of your heart. Then you will win favor and a good name in the sight of God and man. Proverbs 3:3-4 NIV
Trust in the Lord with all your heart and lean not on your own understanding; in all your ways submit to him, and he will make your paths straight. Proverbs 3:5-6 | NIV
Create in me a pure heart, O God, and renew a steadfast spirit within me. Psalm 51:10 NIV
But the Lord said to Samuel, “Do not consider his appearance or his height, for I have rejected him. The Lord does not look at the things people look at. People look at the outward appearance, but the Lord looks at the heart.” 1 Samuel 16:7 NIV
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