Congenital Heart Disease (CHD), known locally in Indonesia as Penyakit Jantung Bawaan (PJB), remains a significant medical challenge that accounts for a substantial portion of infant mortality rates. While the precise etiology of many congenital heart defects remains elusive to the global medical community, healthcare experts emphasize that several modifiable risk factors during pregnancy can be addressed to reduce the incidence of children born with these life-threatening conditions. Dr. Rizky Adriansyah, MKed, a prominent pediatric specialist and the Chairperson of the Cardiology Coordination Unit of the Indonesian Pediatric Association (IDAI), recently highlighted the critical nature of prenatal care and early detection in a public webinar aimed at increasing national health awareness.
The complexity of CHD lies in its developmental nature; it occurs during the intricate process of fetal heart formation, often before a woman even realizes she is pregnant. According to Dr. Rizky, while a direct cause-and-effect relationship is difficult to isolate in every individual case, there are three primary risk factors that have gained significant attention in recent medical literature: maternal infections, nutritional deficiencies, and the consumption of specific medications during pregnancy. These factors can disrupt the delicate biological signaling required to form the heart’s chambers, valves, and vessels.
Identifying Key Risk Factors and Preventive Measures
The first major risk factor identified by medical professionals is the Rubella infection, commonly referred to as German Measles. When a pregnant woman contracts Rubella, the virus can cross the placental barrier and interfere with the development of the fetus’s organs, a condition known as Congenital Rubella Syndrome (CRS). Heart defects are a hallmark of CRS. To combat this, the Indonesian government and health organizations have been aggressive in promoting the Rubella vaccine. Dr. Rizky noted that ensuring a mother is immunized before pregnancy is perhaps the most effective way to prevent infection-related CHD.
The second factor is the deficiency of folic acid (Vitamin B9). Folic acid is essential for DNA synthesis and repair, playing a foundational role in the growth of the neural tube and the cardiovascular system. In many developing regions, including parts of Indonesia, maternal malnutrition remains a hurdle. Supplementation and the consumption of folic-acid-rich foods—such as leafy greens, legumes, and fortified grains—are cited as mandatory components of a healthy pregnancy.
Thirdly, the use of certain medications, particularly anticonvulsants used to treat seizures, has been linked to an increased risk of heart defects. Dr. Rizky emphasized that while these medications are often necessary for the mother’s health, they must be managed under strict medical supervision to balance the risks to the fetus. Historically, lifestyle factors such as maternal smoking and alcohol consumption were viewed as the primary culprits. However, clinical data shows that many mothers who abstain from these substances still give birth to children with CHD, indicating that the spectrum of risk is much broader than previously understood.
The Statistical Burden of CHD in Indonesia
The scale of the CHD crisis in Indonesia is reflected in alarming mortality statistics. Data from 2017 indicates that CHD is the second leading cause of neonatal death in the country, contributing to 17 percent of all fatalities in the first month of life, surpassed only by complications related to prematurity. This aligns with global trends reported by the World Health Organization (WHO), which estimates that one out of every 100 newborns suffers from some form of congenital heart disease.
Of these cases, approximately 25 percent are classified as "critical" CHD. Critical CHD (CCHD) requires surgical intervention or catheterization within the first year—and often the first days—of life to ensure survival. In the Indonesian context, this translates to roughly two to four critical cases for every 1,000 live births. Given Indonesia’s high birth rate, this represents thousands of infants annually who require immediate, specialized cardiac care.
Despite the prevalence of the condition, the treatment gap in Indonesia remains a significant concern. Dr. Rizky revealed that less than 50 percent of CHD cases in the country are handled effectively. This shortfall is attributed to a combination of factors: geographical barriers in an archipelagic nation, a lack of specialized diagnostic equipment in rural areas, a shortage of pediatric cardiologists and specialized nurses, and a general lack of public awareness regarding the early signs of heart distress in infants.
Advancements in Early Detection and Diagnosis
The window for intervention in CHD cases is narrow. Delayed diagnosis is currently one of the most pressing issues facing the Indonesian healthcare system. To address this, medical experts are advocating for the widespread adoption of simple, cost-effective screening methods that can be performed shortly after birth.
One of the most effective tools currently available is the pulse oximetry test. This non-invasive procedure involves placing a small sensor on the newborn’s right hand and either foot to measure oxygen saturation levels in the blood. Dr. Rizky described this method as highly sensitive, rapid, and affordable. A significant discrepancy in oxygen levels or a consistently low reading can serve as an early warning sign of a heart defect, prompting immediate referral for an echocardiography—an ultrasound of the heart that provides a definitive diagnosis.
Furthermore, the traditional use of the stethoscope remains a vital first line of defense. The presence of a heart murmur—a swishing or whistling sound caused by turbulent blood flow—should immediately alert healthcare providers to the possibility of a structural defect. Clinical symptoms in older infants often include poor weight gain, as the heart must work significantly harder to pump blood, leaving the infant with little energy for feeding and growth. In critical cases, symptoms such as cyanosis (a bluish tint to the skin, lips, or fingernails) may appear within the first 24 to 48 hours of life.
Empowering Healthcare Workers and the Community
Recognizing the limitations of specialized medical infrastructure, the IDAI is focusing on empowering frontline healthcare workers, such as midwives and general practitioners in community health centers (Puskesmas). Dr. Rizky noted that a basic heart screening can be completed in less than five minutes. By training midwives to perform oximetry and recognize clinical symptoms, the healthcare system can significantly improve the rate of early detection.
To support this educational push, the IDAI has utilized digital platforms to reach both professionals and the general public. The YouTube channel "Sehatkan Jantung Anak Indonesia" (Heal the Hearts of Indonesian Children) serves as a repository for educational content, teaching parents and local health workers how to identify signs of heart trouble and when to seek specialist care. This democratization of medical knowledge is seen as a vital step in reducing the "referral lag" that often results in infants arriving at specialized hospitals in a state of advanced heart failure.
Implications for Public Policy and the Future of Cardiac Care
The struggle to manage CHD in Indonesia highlights broader systemic issues within the national healthcare framework. The centralization of advanced cardiac facilities in major cities like Jakarta leaves families in remote provinces at a disadvantage. For many, the cost of travel and the logistical challenges of seeking care in the capital are insurmountable, even if the medical procedures themselves are covered by national health insurance (JKN).
The analysis of the current situation suggests that the Indonesian government must prioritize the decentralization of pediatric cardiac services. This involves not only the procurement of echocardiography machines for regional hospitals but also a long-term investment in human resources. Training more pediatric cardiologists and cardiac surgeons is essential to closing the 50 percent treatment gap mentioned by Dr. Rizky.
Furthermore, the economic implications of untreated CHD are profound. Infants who do not receive timely intervention may suffer from chronic health issues, placing a long-term burden on the healthcare system and reducing the future productivity of the nation’s youth. Conversely, children who receive early surgery often go on to lead full, healthy, and productive lives.
In conclusion, while the causes of Congenital Heart Disease remain complex and partially unknown, the path forward for Indonesia involves a clear, multi-pronged strategy. This includes aggressive prenatal vaccination and nutrition programs, the standardization of newborn heart screenings across all birth facilities, and a concerted effort to expand specialized medical capacity beyond the island of Java. As Dr. Rizky Adriansyah and the IDAI emphasize, the prevention of CHD complications must begin during pregnancy; once a child is born, the focus must shift immediately to rapid detection and life-saving intervention. Through increased awareness and improved medical access, Indonesia can aim to lower the 17 percent neonatal mortality rate and ensure a healthier future for its youngest citizens.
