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Role of lung ultrasound in diagnosing and differentiating transient tachypnea of the newborn and respiratory distress syndrome in preterm neonates

Srinivasan S
Srinivasan S
, 
Neeti Aggarwal
Neeti Aggarwal
, 
Sushma Makhaik
Sushma Makhaik
, 
Anupam Jhobta
Anupam Jhobta
, 
Sumala Kapila
Sumala Kapila
 y 
Rohit Bhoil
Rohit Bhoil
   | 08 feb 2022
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Article Category: Research paper
Publicado en línea: 08 feb 2022
Páginas: 1 - 5
Recibido: 20 nov 2021
Aceptado: 16 dic 2021
DOI: https://doi.org/10.15557/JoU.2022.0001
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© 2022 Srinivasan S, Neeti Aggarwal, Sushma Makhaik, Anupam Jhobta, Sumala Kapila, Rohit Bhoil, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

USG appearance of normal lung – which appears hypoechoic with visible pleural and A-lines. Curvilinear echogenic ribs are also seen, casting posterior acoustic shadowing
USG appearance of normal lung – which appears hypoechoic with visible pleural and A-lines. Curvilinear echogenic ribs are also seen, casting posterior acoustic shadowing

Fig. 2

Area of subpleural consolidation with air bronchograms
Area of subpleural consolidation with air bronchograms

Fig. 3

White out lung arising from 3-mm apart confluent B-lines and represents alveolar edema
White out lung arising from 3-mm apart confluent B-lines and represents alveolar edema

Fig. 4

Alveolar-interstitial syndrome, characterized by abnormal B-lines which are echogenic ring down artifacts, and are 7 mm apart arising from the pleural line and are representative of edema involving interlobular septa
Alveolar-interstitial syndrome, characterized by abnormal B-lines which are echogenic ring down artifacts, and are 7 mm apart arising from the pleural line and are representative of edema involving interlobular septa

Fig. 5

Double lung point sign, a sharp cutoff point arising due to more compact B-lines in lower and less compact B-lines in upper lung fields
Double lung point sign, a sharp cutoff point arising due to more compact B-lines in lower and less compact B-lines in upper lung fields

General information about patients in the two groups

Neonate groupGA (weeks)weight Birth (GMS)Gender (M/F)CS (n)
RDS (n = 50)31.3 ± 2.41511 ± 04928/2232
TTN (n = 50)33.0 ± 1.62030 ± 51031/1933

Distribution of ultrasound findings in the two groups

Ultrasound findingsRDS (n group = 50)TTN (n = group 50)p value
Consolidation bronchograms with air or fluid50 (100%)0<0.001*
Double lung point sign0 (0%)43 (86%)<0.001*
White out lungs (severe alveolar-interstitial syndrome)/Absent A-lines44 (88%)3 (6%)<0.001*
Interstitial syndrome06 (12%)47 (94%)<0.001*
Absence of spared areas50 (100%)3(6%)<0.001*
Pleural effusion bilateral – unilateral/09 (18%)05 (10%)>0.05**
Pleural line abnormalities50 (100%)50 (100%)>0.05**

USG findings in the TTN group

LUS findings in TTNObservations
SensitivitySpecificityPPVNPV
Double (DLP) sign lung point94.00%100%100%94.3%
Alveolar-syndrome interstitial94.0%88.0%88.7%93.6%
Pleural line abnormalities100%0%50%-
Absent White out A-lines/ lungs6.00%0%5.7%0%
Pleural effusion10.0%82.0%35.7%47.7%

USG findings in the RDS group

LUS findings in RDSObservations
SensitivitySpecificityPPVNPV
Consolidation or fluid bronchograms with air100%100%100%100%
White out lungs (severe alveolar-interstitial syndrome)/Absent A-lines88.0%94.0%93.6%88.7%
Absence of spared areas100%94.0%94.3%100%
Pleural line abnormalities100%0%50%-
Pleural effusion18.0%90.0%64.2%52.3%
eISSN:
2451-070X
Idioma:
Inglés
Calendario de la edición:
4 veces al año
Temas de la revista:
Medicine, Basic Medical Science, other
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