What Is ASD (Atrial Septal Defect)? Why Early Treatment Matters
Dr. Nikhila Pachani, Consultant Interventional Cardiologist at Backbone Medicity Hospital, Rajkot, recently shared an important health awareness message about Atrial Septal Defect (ASD) — a congenital heart condition that often goes unnoticed for years.
What Is an Atrial Septal Defect?
The heart has four chambers. A wall called the septum separates the left side from the right side. In a person with ASD, there is a hole in this wall between the two upper chambers (the atria). This means blood that has already picked up oxygen from the lungs can leak back to the wrong side of the heart, making the heart work harder than it should.
ASD is a congenital heart defect, which means a person is born with it. Some small holes close on their own in early childhood. However, larger holes that stay open need medical attention.
What Happens If ASD Is Left Untreated?
If an ASD is not treated in time, the extra workload on the heart can slowly cause serious problems, including:
- Heart failure — the heart becomes too weak to pump blood effectively
- Arrhythmias — irregular heartbeats that can cause palpitations or dizziness
- Pulmonary arterial hypertension — high blood pressure in the lungs, which can eventually lead to a severe condition called Eisenmenger syndrome
- Reduced exercise capacity and breathlessness over time
These complications can develop gradually, which is why many people do not realise they have a problem until it becomes serious.
Why Early Detection and Treatment Help
Diagnosing ASD early — through a simple, non-invasive echocardiogram (heart ultrasound) — allows doctors to monitor the defect and plan treatment at the right time. Thanks to advances in interventional cardiology, many ASDs today can be closed without open-heart surgery. A minimally invasive catheter-based procedure is used to place a small device that seals the hole from inside the heart.
Treating ASD early helps:
- Prevent long-term damage to the heart and lungs
- Restore normal blood flow
- Improve quality of life and long-term heart health
Who Should Get Checked?
If you or a family member has been told about a heart murmur, experiences unexplained breathlessness, or has a history of congenital heart problems, it is worth speaking to a cardiologist. Children and young adults with these symptoms especially should not delay evaluation.
If you or someone you know has been diagnosed with ASD or has concerns about a congenital heart condition, consult a qualified cardiologist to understand the right treatment plan for you.