Objective: To study the early diagnosis value of lung ultrasound for Transient tachypnea of the newborn(TTN).Methods: 80 cases of neonates with dyspnea admitted to neonatology department of Huadu District People Hospital of Guangzhou from April 2019 to December 2019 were selected. According to the clinical diagnosis results

the neonates were divided into TTN group (n=57) and Respiratory distress syndrome (RDS) group (n=23).Results: The proportions of abnormal pleural line

white lung sign

double lung point

AIS and pulmonary consolidation compared between TTN group and RDS group with no statistically significant differences(P>0.05).The sensitivity

specificity

positive predictive value

negative predictive value and accuracy of lung ultrasound in early diagnosis of TTN were respectively94.74%

95.65%

98.18%

88.00% and 95.00% .The sensitivity

specificity

positive predictive value

negative predictive value and accuracy of X-ray in early diagnosis of TTN were respectively 84.21%

82.61%

92.31%

67.86%

83.75%

the sensitivity

specificity

positive predictive value

negative predictive value of lung ultrasound in early diagnosis of TTN were higher than X-ray

but the difference was no statistically significant (P>0.05)

the accuracy of lung ultrasound in early diagnosis of TTN was obviously higher than X-ray

compared with statistically significant differences between both(P<0.05).Conclusion:Early diagnosis value of lung ultrasound for neonatal TTN is significant

it is worthy of clinical application.