Thoracic fluid content (TFC) using electrical cardiometry versus lung ultrasound in the diagnosis of transient tachypnea of newborn

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2024年3月15日

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Nagwa Mohamed Abd EL-Fattah,
Heba Saied EL-Mahdy,
Manal Fathy Hamisa,
Ashraf Mohamed Ibrahim

摘要

This study aimed to evaluate TFC by EC versus lung ultrasound (LUS) findings for diagnosing and follow-up of TTN in late preterm and term neonates. This prospective observational study was conducted on 80 neonates with gestational age ≥ 34 weeks. TTN group included 40 neonates diagnosed with TTN, and no lung disease (NLD) group included 40 neonates without respiratory distress. LUS and EC were performed within the first 24 h of life and repeated after 72 h. There was a statistically significant increase in TFC in TTN group on D1 [48.48 ± 4.86 (1 KOhm⁻¹)] compared to NLD group [32.95 ± 4.59 (1 KOhm⁻¹)], and then significant decrease in TFC in D3 [34.90 ± 4.42 (1 KOhm⁻¹)] compared to D1 in the TTN group. There was a significant positive correlation between both TFC and LUS with Downes’ score, TTN score, and duration of oxygen therapy in the TTN group.

Conclusion: Both LUS and TFC by EC provide good bedside tools that could help to diagnose and monitor TTN. TFC showed a good correlation with LUS score and degree of respiratory distress.

What is Known:

• Transient tachypnea of the newborn (TTN) is the most common cause of respiratory distress in newborns.

• TTN is a diagnosis of exclusion, there are no specific clinical parameters or biomarker has been identified for TTN.

What is New:

• Thoracic fluid content (TFC) by electrical cardiometry is a new parameter to evaluate lung fluid volume and could help to diagnose and monitor TTN and correlates with lung ultrasound score.