Term C-section →
TTN; premature, perinatal distress →
NRDS
CXR Findings in TTN:
CXR Findings in NRDS:
| Diagnosis | Transient tachypnea of the newborn (TTN) | Respiratory distress syndrome | Persistent pulmonary hypertension |
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| Pathophysiology | Alveolar fluid not cleared properly at birth | Alveolar collapse and atelectasis due to lack of surfactant | Right to left shunting due to high pulmonary vascular resistance resulting in hypoxia |
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| Clinical features | Tachypnea resolves by day 2 | Respiratory distress (premature birth) | Tachypnea and cyanosis |
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| Chest x-ray | Perihilar linear streaking bilaterally | Ground glass (reticulogranular), air bronchograms, decreased lung volumes | Clear lung fields, decreased pulmonary vascularity |
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