Structural heart disease

What Is Structural Heart Disease?

Structural heart disease is a broad term referring to abnormalities in the heart’s valves, walls, or chambers, as distinct from problems affecting the coronary arteries or the heart’s electrical system. It encompasses a wide range of conditions, some present from birth and others that develop gradually over the course of a lifetime.¹

The category includes congenital defects such as holes between heart chambers, acquired valve disease affecting how blood flows through the heart, and structural weakening or thickening of the heart muscle itself. What unites these conditions is that the physical architecture of the heart, rather than its blood supply or rhythm alone, is the primary problem.¹

Advances in catheter based treatment have transformed this field over the past two decades. Many conditions that once required open heart surgery can now be treated through minimally invasive procedures performed with a catheter threaded through a blood vessel, dramatically changing recovery time and expanding treatment options for patients who previously faced significant surgical risk.²

Catheter based interventional cardiology procedures for structural heart disease have experienced remarkable evolution, transforming the management of complex cardiovascular diseases.
National Center for Biotechnology Information

Types of Structural Heart Disease

Congenital heart defects represent one major category, including atrial septal defects and ventricular septal defects, both of which involve an abnormal opening between heart chambers that allows blood to flow where it normally should not. Patent foramen ovale, a small opening that most people are born with but that typically closes on its own shortly after birth, is another common congenital finding.³

Acquired valve disease makes up a second major category, encompassing conditions such as aortic stenosis, in which the aortic valve narrows and restricts blood flow out of the heart, along with various forms of valve regurgitation, in which a valve fails to close properly and allows blood to leak backward.¹

Cardiomyopathy, a disease affecting the heart muscle itself, forms a third category, in which the muscle becomes abnormally thick, stiff, or weakened, altering the heart’s overall shape and function even when the valves and chamber walls are otherwise structurally intact.¹

Symptoms

Symptoms of structural heart disease vary enormously depending on which structure is affected and how severely. Some conditions, particularly mild congenital defects or early valve disease, produce no symptoms at all and are discovered only incidentally, often through a heart murmur heard during a routine exam.³

More significant structural problems typically produce symptoms related to reduced cardiac efficiency, including shortness of breath, fatigue, and reduced exercise tolerance. Fluid retention, manifesting as swelling in the legs or abdomen, can occur when the heart’s structural abnormality leads to congestion within the circulatory system.¹

Some structural abnormalities, particularly certain congenital defects, can present in infancy with feeding difficulties, poor growth, or visible bluish discoloration of the skin, while others may remain silent for decades before symptoms eventually emerge in adulthood.³

Causes

Congenital structural heart defects arise during fetal heart development, and in most cases, no specific cause can be identified. Known contributing factors include maternal diabetes, certain medications or alcohol use during pregnancy, and folate deficiency, along with a range of genetic syndromes that specifically affect heart formation.³

Acquired structural heart disease, which develops later in life, often results from long standing conditions that place ongoing strain on the heart’s valves or muscle. High blood pressure, prior heart attacks, infections affecting the heart valves, and age related degeneration of valve tissue are among the most common contributing causes.⁴

Chronic low grade inflammation has emerged as an important underlying mechanism connecting many traditional risk factors to the structural changes seen in conditions such as valve calcification and cardiomyopathy, offering a unifying explanation for how conditions like diabetes and high blood pressure gradually reshape the heart over time.⁴

Risk Factors

High blood pressure, diabetes, metabolic syndrome, and obesity are among the most significant risk factors for developing acquired structural heart disease later in life, each contributing to gradual changes in the heart’s valves, chambers, and muscle tissue.⁴

Certain medications known to be toxic to heart tissue, along with inherited genetic variants associated with cardiomyopathy, can substantially raise the likelihood of developing structural changes in the heart independent of the more common lifestyle related risk factors.⁴

For congenital forms of structural heart disease, a family history of heart defects, certain genetic syndromes, and specific maternal health conditions or exposures during pregnancy all raise the likelihood that a baby will be born with a structural heart abnormality.³

Complications

Left unaddressed, structural heart disease can progressively strain the heart, leading to heart failure as the muscle struggles to compensate for an abnormal valve, an unusual blood flow pattern, or a weakened chamber wall over time.¹

Certain structural abnormalities also increase the risk of dangerous heart rhythm disturbances, since abnormal chamber size or muscle thickness can disrupt the heart’s normal electrical pathways, in some cases raising the risk of sudden cardiac death in specific high risk patients.⁵

Depending on the specific condition, structural heart disease can also raise the risk of blood clot formation, stroke, pulmonary hypertension, and, in the case of certain valve abnormalities, an increased susceptibility to infection of the heart valve tissue itself.¹

Treatment

Treatment for structural heart disease depends entirely on the specific condition, its severity, and the patient’s overall health, ranging from careful monitoring alone for mild or asymptomatic cases to definitive procedural intervention for more significant abnormalities.²

Transcatheter interventions have become a mainstay treatment option for many forms of structural heart disease, including catheter based aortic valve replacement, mitral and tricuspid valve repair, closure of atrial septal defects or patent foramen ovale, and left atrial appendage occlusion, all performed without the need for open heart surgery in appropriately selected patients.²

Traditional open heart surgery remains an important option, particularly for complex congenital defects, certain valve conditions not well suited to catheter based repair, or cases requiring simultaneous treatment of multiple structural problems. Medication also plays a supportive role for many patients, managing symptoms and reducing strain on the heart alongside definitive structural treatment.¹

Prevention

Congenital structural heart disease cannot generally be prevented, though prenatal care that manages maternal health conditions such as diabetes and avoids known harmful exposures during pregnancy can reduce risk to some degree.³

Acquired structural heart disease is more amenable to prevention through management of the same cardiovascular risk factors responsible for many other forms of heart disease, including controlling blood pressure, managing diabetes and cholesterol, maintaining a healthy weight, and avoiding tobacco use.⁶

For people already diagnosed with a mild structural abnormality, regular follow up with echocardiography allows physicians to track the condition over time and intervene before it progresses to a stage associated with significant symptoms or serious complications.¹

Why Visual Communication Matters for Structural Heart Disease

Structural heart disease covers an enormous range of conditions, and explaining the physical architecture of the heart, how a valve or chamber wall differs from normal, and how a catheter based device can repair that structure from within, depends heavily on clear visual explanation that most patients cannot get from words alone.¹

Device manufacturers, structural heart programs, and patient education organizations rely on precise illustration and animation to explain the many conditions that fall under this umbrella and the growing range of treatment options available for each.

• Illustrating the anatomy of common structural conditions, including septal defects, valve disease, and cardiomyopathy
• Animating transcatheter procedures used to treat structural abnormalities without open heart surgery
• Comparing surgical and catheter based treatment approaches for patient education
• Explaining how structural abnormalities affect blood flow and overall heart function
• Visualizing diagnostic imaging used to identify and monitor structural heart conditions
• Supporting clinical training across the full range of structural heart interventions

How Biotic Artlab Supports Structural Heart Disease Communication

Our team works with structural heart device manufacturers, cardiac surgery programs, and healthcare organizations to create precise, engaging visuals that make this broad and complex field understandable for patients, clinicians, and industry audiences.

• Custom 3D animations of congenital defects, valve disease, and cardiomyopathy
• Detailed illustrations of transcatheter and surgical treatment procedures
• Patient facing educational materials explaining diagnosis and treatment pathways
• Clinical training content for structural heart and cardiac surgery teams
• Regulatory and investor facing visuals explaining device mechanism of action
• Conference presentations and marketing materials for structural heart audiences

Frequently Asked Questions

What is the difference between structural heart disease and coronary artery disease?

Coronary artery disease affects the blood vessels supplying the heart muscle, while structural heart disease affects the heart’s valves, walls, or chambers directly. A person can have either condition alone or both at the same time.¹

Can structural heart disease be present without symptoms?

Yes. Many structural abnormalities, particularly mild congenital defects or early valve disease, cause no symptoms and are discovered incidentally, often through a heart murmur found during a routine physical exam.³

Is surgery always required for structural heart disease?

No. Many conditions can now be treated with minimally invasive, catheter based procedures that avoid the need for open heart surgery, though traditional surgery remains necessary for certain complex or advanced cases.²

Are all structural heart conditions present from birth?

No. While congenital defects are present at birth, many structural heart conditions, including most valve disease and cardiomyopathy, develop gradually later in life due to factors such as high blood pressure, aging, or prior heart damage.⁴

How is structural heart disease diagnosed?

Echocardiography is the primary imaging tool used to visualize the heart’s structure and detect abnormalities in the valves, chamber walls, or overall heart shape, often supplemented by additional imaging depending on the specific condition suspected.¹

Can lifestyle changes help prevent structural heart disease?

For acquired forms of structural heart disease, yes. Managing blood pressure, diabetes, and cholesterol, maintaining a healthy weight, and avoiding tobacco all reduce the risk of developing many forms of valve disease and cardiomyopathy over time.⁶

Have a Project in Mind? Contact Us.

If you are developing training materials, patient education content, or marketing visuals related to structural heart disease or its treatment, our team can help translate the science into visuals that are both accurate and easy to understand. Contact us at info@biotic-artlab.com or get in touch through our contact form to discuss your project.

References

1. National Center for Biotechnology Information. Structural Heart Diseases.
2. National Center for Biotechnology Information. Transcatheter Structural Heart Interventions in the Acute Setting, An Emerging Indication.
3. National Center for Biotechnology Information. Congenital Heart Disease, Types, Pathophysiology, Diagnosis, and Treatment Options.
4. National Center for Biotechnology Information. From Risk Factors to Structural Heart Disease, the Role of Inflammation.
5. National Center for Biotechnology Information. Optimal Strategies for Mitigating Sudden Cardiac Death Risk in At Risk Patients With Structural Heart Disease.
6. National Center for Biotechnology Information. Towards Optimal Cardiovascular Health, A Comprehensive Review of Preventive Strategies.

Disclaimer: This page provides general educational information and is not a substitute for diagnosis, treatment, emergency care, or individualized advice from a qualified healthcare professional.