Will these defects close spontaneously?

• Perimembranous VSD, 5 mm: it can become smaller or close spontaneously, especially if restrictive, but a 5 mm VSD in a very small preterm baby is not automatically “small.” Perimembranous defects have potential for spontaneous closure, particularly when small. It needs serial echocardiographic follow-up.
  Sabiston Textbook of Surgery, perimembranous VSD section.
• Ostium secundum ASD, 5 mm: may decrease in size or close during infancy, but 5 mm requires follow-up. In neonates, some apparent ASDs can also represent a stretched patent foramen ovale, so echo review is important.
• Mild TR: often is not important by itself, but the estimated TR jet velocity, right-sided pressures, septal position, and pulmonary pressures must be assessed.

Why the current respiratory distress matters

• prematurity-related lung disease, including RDS or TTN
• sepsis/pneumonia
• apnea, hypothermia, hypoglycemia, anemia
• pulmonary hypertension
• aspiration or feeding-related problems

Practical advice now

1. Manage in NICU/SNCU or hospital, not as outpatient.
2. Repeat detailed echocardiography by pediatric cardiologist, specifically documenting:
   • VSD location, true diameter, Doppler gradient and shunt volume
   • chamber enlargement, especially LA/LV
   • pulmonary artery pressure and signs of pulmonary hypertension
   • whether the “ASD” is a true secundum ASD versus PFO
   • PDA, arch/coarctation assessment, ventricular function, and TR mechanism.
3. Evaluate respiratory distress fully: pre/postductal oxygen saturation, blood gas, chest radiograph, glucose, CBC/infection assessment as clinically indicated.
4. Monitor carefully: respiratory rate/work of breathing, saturation, urine output, daily weight, feeds, liver size, perfusion, and signs of heart failure.
5. Nutrition is important: use expressed breast milk if possible. If tachypneic or tiring with feeds, oral feeds may be unsafe and the team may use paced, gavage, or IV support temporarily.
6. Do not start diuretics, ACE inhibitors, fluid restriction, or oxygen targets solely from the echo report. These depend on examination, radiograph, blood gases, renal function, and whether there is actual pulmonary overcirculation/heart failure.

Seek immediate escalation if

Advice for parents/caregivers

Go to the emergency department immediately if any danger sign occurs

Breathing

• Fast breathing: 60 or more breaths per minute when calm
• Chest pulling in between or below the ribs
• Grunting/noisy breathing, repeated pauses in breathing, or gasping
• Blue lips, tongue, or face
• Oxygen saturation low if you have been advised to monitor it
• Breathing becomes worse during feeds

Feeding and growth

• Refuses feeds or takes much less than usual
• Tires, sweats, coughs/chokes, or becomes breathless during feeding
• Vomits repeatedly, especially green vomit
• Fewer wet diapers or urine markedly reduced
• Not gaining weight, or losing weight after the initial expected early newborn weight loss

Activity and circulation

• Very sleepy, floppy, difficult to wake, weak cry, or unusually irritable
• Baby moves only after stimulation or is not moving normally
• Pale, grey, mottled, cold hands/feet, or poor perfusion
• Enlarged-looking abdomen or puffiness/swelling around eyes, feet, or body

Infection or neurological signs

• Temperature 38°C or higher, or below 35.5°C
• Seizure/abnormal jerking, staring spells, or repeated abnormal movements
• Umbilical redness spreading to skin, pus, bad smell, or bleeding
• Yellow colour rapidly increasing, deep yellow palms/soles, or baby too sleepy to feed

Day-to-day care

• Keep baby warm, preferably skin-to-skin kangaroo mother care only when the treating team says the baby is stable.
• Give expressed breast milk as advised. If baby is breathing fast or tires during feeds, ask the team about safe feeding methods. Do not force-feed.
• Give feeds exactly as advised and avoid plain water, gripe water, honey, or home remedies.
• Strict hand hygiene for everyone handling the baby. Avoid visitors with cough, cold, fever, or diarrhea.
• Ensure prescribed vaccines, supplements, and follow-ups are on time.
• Keep a daily record of feed volume/duration, urine/stool, breathing symptoms, and weight if measured reliably.
• Do not give diuretics, antibiotics, cough medicines, or herbal remedies without the neonatal/pediatric team.

Cardiology follow-up