Skip to content
Congenital Heart Disease

Patent Ductus Arteriosus (PDA)

Persistent Fetal Blood Vessel Causing Abnormal Heart-Lung Circulation

Patent Ductus Arteriosus (PDA) is a congenital heart condition where a blood vessel (ductus arteriosus) that should close after birth remains open. This causes abnormal blood flow between the aorta and pulmonary artery, leading to increased lung circulation and strain on the heart.

Affects Blood Vessel
Cause Failure to Close
Progression Variable
Treatment Closure / Medications
Baby with Fast Breathing or Poor Weight Gain?

Early diagnosis can prevent long-term complications

+91
Confidential | Reviewed by cardiac specialists
What is Patent Ductus Arteriosus?
Open Ductus
Remains open after birth
Abnormal Flow
Aorta → Pulmonary artery
Lung Overload
Excess lung circulation
Continuous murmur + symptoms → Key diagnostic clue

Early diagnosis can prevent long-term complications.

Understanding

What is Patent Ductus Arteriosus?

Before birth:

  • Ductus arteriosus connects aorta and pulmonary artery

After birth:

  • It should close naturally

In PDA:

  • It remains open
  • Blood flows abnormally from aorta → lungs

This leads to:

  • Excess blood flow to lungs
  • Increased heart workload
  • Risk of heart failure
Warning Signs

Early Signs & Symptoms

Rapid Breathing
In Infants
Difficulty Feeding
In Infants
Poor Weight Gain
In Infants
Continuous murmur + symptoms → Key diagnostic clue
Risk Factors

Causes & Risk Factors

Cause

Congenital (present since birth)

Risk Factors
  • Premature birth
  • Low birth weight
  • Maternal infections
Progression

Disease Progression

Small PDA Often asymptomatic
Moderate PDA Symptoms develop
Large PDA Heart enlargement
End Stage Transplant needed

Small PDA

Often asymptomatic

May close spontaneously

Monitor

Moderate PDA

Symptoms develop

Treatment indicated

Closure Needed

Large PDA

Heart enlargement

Lung overcirculation

Urgent Closure

End Stage (Rare)

Irreversible damage

Transplant required

Transplant
Testing

Diagnosis & Tests

Echocardiography (key test)
ECG
Chest X-ray
Doppler studies

Early screening improves outcomes

Assess your child's heart health

Management

Treatment Options (Before Transplant)

1. Medical Treatment
  • Medications (in preterm infants)
2. Catheter-Based Closure
  • Minimally invasive device closure
3. Surgical Closure
  • In selected cases

When is Heart Transplant Needed?

Severe pulmonary hypertension develops

Advanced heart failure

Irreversible heart-lung damage

Early Closure Prevents Complications

Most cases are completely treatable

Important Consideration: Highly Treatable Condition

• Often detected early • Minimally invasive treatment available • Delay can cause complications

Treatment vs Transplant
PDA Closure

Stage: Early/Moderate • Goal: Close abnormal vessel • Outcome: Curative

Heart Transplant

Stage: Advanced • Goal: Replace heart • Outcome: Rare but life-saving

Overview

Heart Transplant Overview

Required Only in Rare Advanced Cases
Associated with Irreversible Damage
Good Outcomes in Selected Patients
Planning

Cost & Planning

Costs depend on:

Type of procedure (device vs surgery)
Age and condition of patient
Hospital & city

Download Guide

Congenital Heart Treatment & Transplant Guide

Free & confidential

Get Expert Help

Find Pediatric Cardiologists
Find Specialist
Explore Device Closure Centers
Access Verified Heart Transplant Centers

Patient Resources

Congenital heart disease guide
Feeding and nutrition plan
Growth monitoring chart
Post-procedure care checklist
Pre-transplant workup (rare cases)
Donor evaluation and legal documentation
These follow structured clinical and legal transplant protocols.

Frequently Asked Questions

Small PDAs may close spontaneously.

Yes, for moderate to large PDA.

Often not—device closure is common.

Patent Ductus Arteriosus is a common and treatable congenital heart condition.

Early diagnosis and closure ensure normal heart function. Stay informed. Act early.

Call WhatsApp Evaluate