We read with great interest the excellent and comprehensive review [1] on point-of-care neonatal ultrasound. Due to the breadth of the topic and the high speed of its evolution, the authors might have overlooked a couple of issues concerning lung ultrasound, a rapidly expanding topic [2], which readers deserve to know:

The authors rightfully underline that tension pneumothorax is indeed one of the most rewarding applications of lung ultrasound in adult emergency medicine. Unlike reported by them [1], recent neonatal data are indeed available both as a case report [3] and as a published, prospective study [4].

The diagnostic accuracy for transient tachypnea of the double lung point has been recently questioned in the large series by Liu, et al. [5], where sensitivity was only 49.5%. To solve this clinically relevant question, another prospective study is currently underway by the same international consortium of scientists called NeoLUS (Neonatal Lung UltraSound) who published the pneumothorax data .

1. Rath C, Suryawanshi P. Point of care neonatal ultrasound - Head, lung, gut and line localization. Indian Pediatr. 2016:53:889-99.

2. Raimondi F, Cattarossi L, Copetti R. Point-of-care chest　ultrasound　in the neonatal intensive care unit: An Italian perspective. Neoreviews. 2014;15:e2-6.

3 Migliaro　F, Sodano A, Capasso L,　Raimondi　F. Lung ultrasound-guided emergency pneumothorax needle aspiration in a very preterm infant. BMJ Case Rep. 2014; 　doi:10.1136/bcr-2014-206803.

4 Raimondi　F, Rodriguez Fanjul J, Aversa S, Chirico G, Yousef N, De Luca D, et al. Lung Ultrasound in the Crashing Infant (LUCI) Protocol Study Group. Lung ultrasound for diagnosing pneumothorax in the critically ill neonate. J Pediatr. 2016;175:74-8.

5. Liu　J, Chen XX, Li XW, Chen SW, Wang Y, Fu W. Lung　ultrasonography　to diagnose transient tachypnea of the　newborn. Chest. 2016;149:1269-75.