The medical community in Indonesia is intensifying its focus on Congenital Heart Disease (CHD), a condition where the exact etiology often remains elusive despite its significant impact on neonatal mortality. While the definitive causes of CHD—known locally as Penyakit Jantung Bawaan (PJB)—are not always identifiable, medical experts emphasize that several critical risk factors during pregnancy can be mitigated to reduce the incidence of children born with heart defects. Dr. Rizky Adriansyah, MKed, a pediatric specialist and Chairman of the Cardiology Coordination Unit of the Indonesian Pediatric Society (IDAI), recently highlighted that while the relationship between certain factors and CHD is not always one of direct cause-and-effect, public health initiatives must prioritize the management of known risks to safeguard fetal development.
Congenital Heart Disease refers to structural problems of the heart that are present at birth. These defects can affect the heart’s walls, valves, and blood vessels, potentially disrupting the normal flow of blood through the organ. According to dr. Rizky, recent medical literature and clinical observations in Indonesia have identified three primary risk factors that demand immediate attention: maternal infections, nutritional deficiencies, and the consumption of specific medications during pregnancy. By addressing these variables, health authorities believe a significant portion of CHD cases could be prevented or at least managed more effectively through early intervention.
The Triad of Preventable Risk Factors
During a recent webinar addressing pediatric cardiac health, dr. Rizky identified rubella infection, folic acid deficiency, and the use of anti-seizure medications as the three most discussed risk factors in modern medical literature. These factors interfere with the delicate process of organogenesis, the period during the first trimester when the fetus’s heart and other vital organs are being formed.
Rubella, or German measles, remains a significant concern in Indonesia. When a pregnant woman contracts the rubella virus, it can lead to Congenital Rubella Syndrome (CRS), which frequently manifests as heart defects, deafness, and cataracts in the newborn. The medical consensus suggests that the most effective way to prevent this is through pre-conception vaccination. Ensuring that women of childbearing age are immunized against rubella creates a protective barrier that prevents the virus from reaching the fetus during its most vulnerable stages of development.
Furthermore, the role of nutrition, specifically folic acid (Vitamin B9), cannot be overstated. Folic acid is essential for DNA synthesis and repair, and its deficiency has long been linked to neural tube defects. However, emerging research and clinical data increasingly point to its necessity in proper cardiac development. Dr. Rizky emphasized that maternal consumption of nutrient-rich foods and folic acid supplements is a cornerstone of prenatal care that can significantly lower the risk of CHD.
The third major factor involves the use of certain medications, such as those prescribed for epilepsy or seizures. Some anticonvulsant drugs are known teratogens, meaning they can interfere with fetal development. While expectant mothers with chronic conditions like epilepsy must manage their health, dr. Rizky noted the importance of medical supervision to adjust dosages or switch to safer alternatives during pregnancy to minimize the risk of cardiac malformations in the child.
Statistics and the Burden of Disease in Indonesia
The urgency of addressing CHD is underscored by sobering statistics. In Indonesia, data from 2017 indicates that CHD is the second leading cause of neonatal death, accounting for approximately 17 percent of 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 states that approximately one in every 100 newborns suffers from some form of CHD.
Of these cases, an estimated 25 percent are classified as "critical" CHD (CCHD). Critical cases are defined as those requiring surgical intervention or catheterization within the first year—and often the first days—of life to ensure survival. This equates to roughly two to four cases for every 1,000 live births. In a country as populous as Indonesia, these percentages translate into thousands of families affected every year, placing a significant strain on the national healthcare infrastructure.
Despite the high prevalence, dr. Rizky revealed a troubling gap in the healthcare system: less than 50 percent of CHD cases in Indonesia are currently handled or treated. This deficit is attributed to a multifaceted set of challenges, including limited access to specialized cardiac centers, a shortage of diagnostic equipment in remote regions, a lack of specialized medical human resources, and a general lack of public awareness regarding the symptoms of heart defects in infants.
Diagnostic Challenges and the Role of Early Screening
One of the primary hurdles in reducing CHD-related mortality is the delay in diagnosis. In many instances, infants are discharged from birthing centers appearing healthy, only to develop life-threatening symptoms days or weeks later. To combat this, the medical community is advocating for more rigorous screening protocols that can be performed quickly and affordably.
The use of pulse oximetry has emerged as a highly sensitive and cost-effective tool for early detection. By placing a sensor on the infant’s right hand and either foot (usually the left), healthcare providers can measure oxygen saturation levels. A significant discrepancy between the two readings, or overall low oxygen levels, can serve as a red flag for critical CHD. Dr. Rizky noted that this procedure is non-invasive and can be completed in less than five minutes, making it an ideal screening tool for midwives and general practitioners in primary health centers (Puskesmas).
In addition to oximetry, the traditional stethoscope remains a vital instrument. The presence of a heart murmur—an unusual sound heard between heartbeats—should prompt immediate further investigation. While not all murmurs indicate a defect, they are often the first clinical sign that a child needs an echocardiography, which is an ultrasound of the heart used to provide a definitive diagnosis.
Clinical Symptoms and Parental Awareness
For parents and primary caregivers, recognizing the clinical signs of CHD is essential for seeking timely medical help. One of the most common indicators is poor weight gain. Infants with heart defects often struggle to feed because the act of sucking and swallowing requires more energy than their compromised cardiovascular system can provide. This often leads to a cycle of fatigue and malnutrition.
In more severe or critical cases, symptoms may appear within the first 24 to 48 hours of life. These can include cyanosis (a bluish tint to the skin, lips, or fingernails caused by low oxygen), rapid breathing, and extreme lethargy. Because these symptoms can sometimes be subtle or mistaken for other neonatal issues, dr. Rizky and the IDAI are pushing for broader educational initiatives.
The "Sehatkan Jantung Anak Indonesia" (Healthy Indonesian Children’s Hearts) initiative, which includes a dedicated YouTube channel, serves as a digital resource for both parents and healthcare workers. This platform provides visual guides on how to perform screenings and what symptoms to watch for, bridging the information gap between specialized cardiologists and the general public.
Analysis of Implications and the Path Forward
The high rate of untreated CHD in Indonesia has profound implications for the country’s public health and economy. When heart defects are not caught early, children may suffer from chronic health issues, developmental delays, and a reduced quality of life. From an economic perspective, the cost of emergency surgeries and long-term care for advanced CHD is significantly higher than the cost of early screening and elective interventions.
The Indonesian government and health authorities face the challenge of decentralizing cardiac care. Currently, most specialized pediatric cardiac surgery is concentrated in major urban centers like Jakarta. For a family in a remote province, the logistical and financial barriers to accessing this care can be insurmountable. Expanding the capacity of regional hospitals to perform at least basic diagnostic procedures and initial stabilizations is a critical step in improving survival rates.
Furthermore, the integration of CHD screening into the standard "Newborn Screening" package is a policy move that many experts, including those within IDAI, advocate for. By making pulse oximetry a mandatory part of postnatal care, the healthcare system can identify critical cases before the infant leaves the hospital, ensuring that life-saving interventions are scheduled immediately.
The role of the "Bidan" or midwife is also central to this strategy. In many parts of Indonesia, midwives are the primary healthcare providers for childbirth. Empowering them with the training and tools to perform five-minute cardiac screenings could fundamentally shift the trajectory of CHD management in the country. As dr. Rizky suggested, if the frontline of healthcare is equipped to detect these issues early, the burden on tertiary hospitals can be better managed, and more lives can be saved.
In conclusion, while the origins of congenital heart disease may often be shrouded in biological complexity, the path toward reducing its impact is clear. It requires a combination of preventative maternal care—emphasizing vaccinations and nutrition—and a robust, decentralized screening system that identifies defects at the earliest possible stage. Through the continued efforts of organizations like IDAI and the dissemination of educational resources, Indonesia can move toward a future where every child born with a heart defect has a fair chance at a healthy and productive life. The focus must remain on the first 1,000 days of life, starting from conception, to ensure that the "heart of the nation" remains strong and resilient.
