Diabetes, Heart and Cardiovascular Diseases News Chronicle.  Diabetes, Cardiovascular and Heart Diseases
 Article 250
    Published on September 20, 2017

Post-term and birth weight predictive of survival in infants with congenital heart disease (CHD)

A study done by researchers to estimate long-term survival chances of newborns with congenital heart disease (CHD) shows survival chances in infants can be predicted with their birth weight. A congenital heart disease is also known as a congenital heart anomaly or a congenital heart defect. The study shows the best survival chances for five years will be for those congenital heart disease (CHD) infants born post-term with the most body weight. The study shows poorer chances for lighter (or lightweight, low-weight) and preterm (also early term or early birth) babies. Authors say a born baby with congenital heart disease (CHD) require complex life-saving surgeries in the infant stage and they also require lifetime follow up.

Researchers analyzed data of 5,070 babies born between 1985 and 2003 from the Northern Congenital Abnormality Survey (NorCAS) registry. The NorCAS registry records congenital disorders (or birth defects) among infants born to the residents of the North of England. The analytical study results show

Survival up to age Survival Chances
Up to age 5 years 87.1%
Up to age 10 years 86.7%
Up to age 20 years 85.2%

Other findings were

  • Percentage of born babies at term (born between 37 to 42 weeks of pregnancy) with isolated congenital heart disease (CHD) and with an average birth weight was 53.7 percent
  • The highest five-year survival rate of 97.7 percent among post-term babies with high birth weight
  • The lowest five-year survival rate of 78.8 percent among preterm babies with low birth weight

They also found that survival rate increases as the babies grow. The risk of mortality decreases by seven percent with a year increase in age. Researchers think that reasons for the decrease in mortality were due to new surgical innovations such as Fontan procedure, arterial switch operation and advancements in neonatal (newborn children) care.

Post-term birth weight survival with congenital heart disease CHD anomaly or defect.

Lead author of the study was Dr. Kate E. Best, PhD, from the Institute of Health & Society, Newcastle University United Kingdom. The study findings were published on July 21, 2017, in the Journal of the American Heart Association. Title of the article was "Survival, by Birth Weight and Gestational Age, in Individuals With Congenital Heart Disease: A Population-Based Study."

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Preterm : Also known as an early term or early birth babies. Baby born before 37 weeks of pregnancy.

Early birth : Please see preterm.

Post-term : Also known as prolonged pregnancy and refers to the baby born beyond 42 weeks of pregnancy.

Arterial switch : Also known as a Jatene procedure or arterial switch operation is an open heart surgical procedure.

Fontan procedure : Also known as Fontan-Kreutzer procedure is a surgical procedure used in children with single ventricle (univentricular) heart.

Congenital heart disease : Congenital heart disease is a heart structure problem at birth. Some risk factors are overweight or obesity in the mother, poor nutritional food consumption, alcohol consumption, tobacco usage, born baby biological parents are being closely related, Rubella (also known as three-day measles or German measles) infection during pregnancy.

Congenital heart anomaly : Please see congenital heart disease.

Congenital heart defect : Please see congenital heart disease.



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