Management of neonatal pulmonary hypertension-a survey of neonatal intensive care units in India

BMC Pediatrics

Table 2 Screening and diagnosis

Characteristic	Responses N	Percentage%
Most common predictors of PPHN (n = 118)
Labile oxygen saturations	101	85.5
Pre and post ductal saturation difference	91	77.1
High FiO2 requirements in a respiratory supported neonate	86	72.9
Discrepancy between chest Xray findings and degree of hypoxemia	46	39
Most common screening tools for diagnosis of PPHN (n = 118)
Echocardiography	94	79.7
Arterial blood gas	75	63.6
Oxygenation Index	69	58.5
Chest X-Ray	48	40.7
Most commonly utilized criteria for severity of PPHN (n = 118)
Echocardiography	92	78
FiO2 requirement	59	50
Oxygenation Index	54	45.8
Specific echocardiographic criteria used to diagnose PPHN (n = 106)^a
TR jet with PASP > 35 mmHg	52	51
Intra-ventricular septal flattening	51	50
Shunt pattern across PDA	49	48
TR jet with PASP > 25 mmHg	15	14.7
Intra-atrial shunt direction	14	13.7
Pulmonary artery acceleration time	13	12.7
Frequency of echocardiography in a diagnosed case (n = 106)^a
No fixed frequency	46	43.4
Daily until improvement	30	28.3
Alternate days until improvement	16	15.1
No follow up scan after diagnosis	14	13.2

Abbreviations: PPHN persistent pulmonary hypertension of newborn, FiO2 fraction of inspired oxygen, TR tricuspid regurgitation, PASP pulmonary arterial systolic pressure, PDA patent ductus arteriosus
^aNumber of responses received for that question

ISSN: 1471-2431