1/21/2024 0 Comments Normal heartbeat of newborn babyMays continued to take oral heart medicine and was monitored three times a week by a specialist near home, and the hydrops completely resolved. “We had to do it several times to get the dose high enough in the fetus to correct the SVT,” Dr. Several procedures (the direct injection to the baby through the uterus) were needed until she was 28 weeks, when the baby’s heart rate returned to a normal range permanently. They did the first injection when Mays was 22 weeks along. “This allowed the baby to absorb the medication more effectively.” We thus performed a direct injection of the heart medication into the baby’s abdomen using a thin needle inserted into the uterus guided by an ultrasound,” Dr. “Because of the hydrops and heart failure, the baby did not receive enough medication through mom. Mays’ care team decided to deliver the heart medication directly to the baby while also removing the excess fluid. Since the baby was not responding to the medicine Mays was taking, her medical team needed to do something else to lower the baby’s heart rate and to remove the dangerous excess fluid. Goodnight says, and because Mays’ baby was very premature, delivery was not a good option either. Up to half of the babies born with hydrops due to abnormal heart rhythm do not survive, Dr. If hydrops is left untreated, it can be life-threatening. There are various causes of hydrops, including an abnormal heart rhythm that impairs heart function, which is what led to hydrops for Mays’ baby. In addition, Mays’ baby started to develop hydrops fetalis, a condition in which large amounts of fluid build up in tissues and organs, causing extensive swelling. “Rarely, though, that is not enough to help the baby’s heart rate.” “Treatment for fetal SVT is usually to give the mom medications that cross the placenta and treat the fetus,” says UNC Health maternal-fetal medicine doctor William Goodnight, MD. Usually, giving heart medication to the mom will correct the baby’s heart rate and allow it to continue to grow and avoid preterm birth. “I was there for two weeks and nothing changed.” “We went up there, and they put me on a heart medication and monitored me,” Mays says. Mays’ medical team at UNC Health, which included pediatric cardiology, pediatric pharmacy and maternal-fetal medicine specialists, hoped that would be the case for her baby. Helping Baby’s Heart in Uteroįetal SVT, which occurs while a baby is still in the womb, is rare and if persistent, can be life-threatening to the baby and require treatment. A relatively common heart condition in adults and children, SVT is an irregularly fast or erratic heartbeat (arrhythmia) that affects the heart’s upper chambers. Mays’ baby had a condition called supraventricular tachycardia (SVT). The specialist told her to immediately go see the maternal-fetal medicine specialists at UNC Health. There, she learned her baby’s heart rate was 270-a normal heart rate for a baby in the womb is between 120 and 160. An ultrasound revealed that Mays’ baby had a very rapid heart rate, and she was referred to a maternal-fetal specialist near her hometown of Southern Pines, North Carolina. doi:10.When Kimberly Mays was about 20 weeks pregnant with her second child, she began to feel faint and overheated. Evaluation and management of bradycardia in neonates and children. doi:10.1038/pr.2016.43īaruteau AE, Perry JC, Sanatani S, Horie M, Dubin AM. Clinical associations of immature breathing in preterm infants: part 1-central apnea. Merck Manual Professional Version.įairchild K, Mohr M, Paget-Brown A, et al. What is the "normal" fetal heart rate? PeerJ. Pildner von Steinburg S, Boulesteix AL, Lederer C, et al. Challenges in Treating Low Blood Pressure in Preterm Infants. Gestational-age-specific reference ranges for blood pressure in pregnancy: findings from a prospective cohort. Macdonald-Wallis C, Silverwood RJ, Fraser A, et al.
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