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Risk of Heart Failure Persists among preterm babies in their adulthood: Study
The past 30 years have seen major advances in the medical care of preterm neonates. For even the smallest and least mature infants (extremely preterm infants born <28 weeks' gestation), survival is approximately 90%. However, previous research has shown that the risk of developing early heart disease, including heart failure, are high among preterm babies in their early life.
In a recent study, researchers have reported that this risk is persistent among preterm babies even in their adulthood. The research has been published in the JAMA Pediatrics on April 05, 2021.
Results from previous studies suggest that survivors of preterm birth are at increased risk of hypertension, stroke, and cardiovascular mortality but not ischemic heart disease. Preterm birth was also associated with further alterations in cardiac structure and function in early life, but its association with new-onset HF in adulthood appears to be unknown. Therefore, Dr Casey Crump, MD, PhD and her team conducted a study to determine whether preterm birth is associated with increased risk of HF from childhood into mid-adulthood in a large population-based cohort.
It was a national cohort study conducted in Sweden with data from 1973 through 2015. The researchers included a total of 4 193 069 individuals, all singleton live births in Sweden during 1973 through 2014. The major outcome assessed was Heart failure, as identified from inpatient and outpatient diagnoses through 2015. The researchers also stratified their data by several measures of gestational age:
♦ Extremely preterm births (22-27 weeks),
♦ Moderately preterm births (28-33 weeks),
♦ Late preterm births (34-36 weeks) and early-term births (37-38 weeks).
Key findings of the study were:
- Among 85 million person-years of follow-up, the researchers identified 4158 persons with Heart failure.
- In this cohort, they found that preterm birth (gestational age <37 weeks) was associated with increased risk of HF at ages
♦younger than 1 year (adjusted HR [aHR], 4.49),
♦1 to 17 years (aHR, 3.42), and
♦18 to 43 years (aHR, 1.42) compared with full-term birth (gestational age, 39-41 weeks).
- They noted that the risk remained elevated after stratifying by each measure of gestational age among the adult cohort, as did the incidence of heart failure (per 100,000 person-years). However, they observed that both measures dropped with the longer gestational periods:
♦ Extremely preterm births: HR, 4.72; 31.7 cases,
♦ Moderately preterm births: HR, 1.93; 13.8 cases,
♦ Late preterm births: HR, 1.24; 8.7 cases,
♦ Early term births: HR, 1.09; 7.3 cases,
♦ Full-term births: 6.6 cases.
- They further noted that these associations persisted when excluding persons with structural congenital cardiac anomalies.
- They explained that these associations are linked to family history of preterm births and heart failure among those aged 18 to 43 years (but not <18 years).
- They noted that both male and female share a similar number of HF cases stemming from preterm birth.
The authors concluded, "In this large national cohort, preterm birth was associated with increased risk of new-onset HF into adulthood. Survivors of preterm birth may need long-term clinical follow-up into adulthood for risk reduction and monitoring for HF."
For further information:
https://jamanetwork.com/journals/jamapediatrics/article-abstract/2778224
Medical Dialogues Bureau consists of a team of passionate medical/scientific writers, led by doctors and healthcare researchers. Our team efforts to bring you updated and timely news about the important happenings of the medical and healthcare sector. Our editorial team can be reached at editorial@medicaldialogues.in.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751