RV	Right ventricle
iNO	Inhaled nitric oxide
ARDS	Acute respiratory distress syndrome
CPB	Cardiopulmonary bypass
ECMO	Extracorporeal membrane oxygenation
NO	Nitric oxide
NOS	Nitric oxide synthases
cGMP	Cyclic guanosine monophosphate
PVR	Pulmonary vascular resistance
PPHN	Persistent pulmonary hypertension of the newborn
CHD	Congenital heart disease
LCOS	Low cardiac output syndrome
PH	Pulmonary hypertension
metHb	methaemoglobin
ICU	Intensive care unit
NICU	Neonatal intensive care unit
mPAP	Mean pulmonary artery pressure
PAP	Pulmonary artery pressure
PAH	Pulmonary arterial hypertension
sGC	Soluble guanylate cyclase
PDE5	Phosphodiesterase type 5
FiO2	Fraction of inspired oxygen
MAP	Mean airway pressure
PaO2	Partial pressure of arterial oxygen
SpO2	Peripheral oxygen saturation
V/Q	Ventilation/perfusion ratio
RCT	Randomized controlled trial
CI	Confidence interval
RR	Risk ratio
IQR	Interquartile range
PE	Pulmonary embolism
AKI	Acute kidney injury
OI	Oxygenation index
HFOV	High-frequency oscillatory ventilation
HFJV	High-frequency jet ventilation
LV	Left ventricle
VSD	Ventricular septal defect
AVSD	Atrioventricular septal defect