A term neonate is noticed for turning blue while feeding and turning pink while crying. What is the most appropriate approach? A. Give oxygen B. Perform an ECHO C. Continue breast feeding D. Put a NG tube E. Perform a chest x ray
Reading File
Finding Sources
Searching the Web
choanal atresia neonate cyanosis feeding crying diagnosis NG tube
Reading File
Answer: D. Put a NG tube
Why this presentation points to Choanal Atresia
The scenario describes the classic paradoxical (cyclical) cyanosis of bilateral choanal atresia:
| Situation | What happens | Why |
|---|---|---|
| Feeding | Baby turns blue | Neonates are obligate nasal breathers. Feeding requires closing the mouth, forcing nasal breathing - but the choanae (posterior nasal openings) are blocked, so no air enters |
| Crying | Baby turns pink | Crying forces mouth breathing, bypassing the obstruction and restoring oxygenation |
Why NG tube is the correct first step (Answer D)
Passing a size 6-Fr nasogastric (or suction) catheter through each nostril into the nasopharynx (~32 mm) is the standard bedside diagnostic test. If the tube cannot be passed through either nostril, bilateral choanal atresia is confirmed.
This single maneuver is simultaneously:
- Diagnostic - confirms the obstruction
- Therapeutic - an oral airway or orogastric tube can then bypass the obstruction for feeding
Per Cummings Otolaryngology: "The diagnosis of choanal atresia is made clinically by failure to pass a 6-F catheter through the nose into the nasopharynx." - Cummings Otolaryngology Head and Neck Surgery
Why the other options are wrong
- A. Give oxygen - Oxygen won't help if the obstruction is mechanical; the baby can already oxygenate when crying (mouth open). This does not diagnose or treat the cause.
- B. Perform an ECHO - ECHO is useful when a cardiac defect is suspected. Here the cyanosis is relieved by crying (which worsens cardiac cyanosis - e.g., in TGA crying doesn't reliably relieve cyanosis). ECHO is not the first step.
- C. Continue breastfeeding - Dangerous; the baby becomes cyanotic during feeding. This must not continue without establishing a safe airway/feeding route.
- E. Chest X-ray - Not the first-line investigation for this presentation; it would not reveal choanal atresia.
Key additional points
- Bilateral choanal atresia is an otolaryngologic emergency in neonates
- ~50% of cases are associated with CHARGE syndrome (Coloboma, Heart defects, Atresia choanae, Retardation of growth, Genital abnormalities, Ear abnormalities)
- After confirming the diagnosis, an oropharyngeal airway (McGovern nipple or Guedel airway) is placed immediately to secure breathing; feeding is established via orogastric tube until definitive surgical repair (transnasal endoscopic approach)
- CT scan is then obtained to confirm and characterize the atresia (bony vs. mixed bony-membranous)
The answer is D - Passing an NG tube confirms the diagnosis at the bedside and guides immediate management.
A newborn with 32 wks of PoG was intubated due to SDLD. Suddenly detoriated with increase O2 demand for 15mins. O/E R/S chest expansion and air entry was reduced.What is the next step in management? A. Commence bag ventilation B. Re-intubation C. Needle thoracentesis D. Suctioning of ET tube E. Offer urgent chest x-ray
Finding Sources
Finding Sources
Searching the Web
ventilated neonate sudden deterioration unilateral reduced air entry DOPE pneumothorax needle thoracentesis management
Finding Sources
Finding Sources
Finding Sources
Finding Sources
Reading Web Page
https://www.safercare.vic.gov.au/best-practice-improvement/c…
Answer: C. Needle Thoracentesis
Clinical Reasoning - Why This Is Tension Pneumothorax
The key features of this scenario all point in one direction:
| Feature | Significance |
|---|---|
| 32-week preterm on ventilator | High-pressure ventilation in stiff, fragile lungs = major risk for air leak |
| SDLD (Surfactant Deficiency Lung Disease / RDS) | The underlying disease itself + mechanical ventilation = highest risk group for pneumothorax |
| Sudden deterioration | Pneumothorax is a sudden event; gradual worsening suggests other causes |
| Increased O2 demand over 15 mins | Progressive tension build-up |
| Reduced chest expansion + reduced air entry on RIGHT side only | Unilateral - the hallmark of pneumothorax, NOT tube displacement (which causes bilateral changes or right mainstem shift) |
This is a tension pneumothorax - a life-threatening emergency where air accumulates under pressure in the right pleural space, collapsing the lung and shifting the mediastinum.
Why the Answer is C - Needle Thoracentesis
In an unstable, ventilated neonate, tension pneumothorax requires immediate decompression without waiting for imaging. The correct next step is:
Emergency needle thoracentesis - insert a 21-23G butterfly needle/angiocath at the 2nd intercostal space, midclavicular line (or 4th-5th ICS, mid-axillary line) on the affected side, just above the upper border of the rib (to avoid the neurovascular bundle). Immediate release of air confirms the diagnosis and is life-saving.
As the UCSF neonatal guidelines state: "In an acute emergency, needle aspiration should be performed if the baby's cardiopulmonary status is unstable."
After emergency needle decompression, a chest drain (ICC) is then inserted for definitive management, followed by a chest X-ray to confirm position.
Why the Other Options Are Wrong
-
A. Bag ventilation - Bagging a patient with tension pneumothorax pushes MORE air into the pleural space under pressure. This is actively harmful and would worsen the tension physiology.
-
B. Re-intubation - The ETT is already in place. Unilateral reduced air entry (right side) is not consistent with tube displacement (which would cause absent sounds on the LEFT if the tube slipped into the right mainstem bronchus). Re-intubating delays treatment of the actual problem.
-
D. Suctioning of ET tube - Suctioning addresses tube blockage/obstruction (the "O" in DOPE). Obstruction causes bilateral reduced air entry, not unilateral. This is not the diagnosis here.
-
E. Chest X-ray - In a clinically unstable, deteriorating neonate, there is no time for imaging. Waiting for an X-ray in tension pneumothorax can be fatal. Treat first, image after.
The DOPE Framework for Intubated Neonatal Deterioration
When a ventilated neonate suddenly deteriorates, systematically work through:
| Letter | Problem | Finding | Action |
|---|---|---|---|
| D | Displacement | Absent sounds left/right mainstem | Re-intubate |
| O | Obstruction | Bilateral reduced entry, high PIP | Suction ETT |
| P | Pneumothorax | Unilateral reduced entry + expansion | Needle thoracentesis |
| E | Equipment failure | Vent alarm, circuit disconnect | Check circuit |
This scenario maps directly to P - Pneumothorax, making C (Needle Thoracentesis) the correct immediate next step.
This is a shared conversation. Sign in to Orris to start your own chat.