What is the treatment for persistent pulmonary hypertension (PPH)?

Administering oxygen to maintain a normal PaO2 according to the requirements determined by blood gases.
Leaving the patient at zero regimen by mouth while the FiO2 is close to 0.40 and the respiratory rate is above 70 per minute.
Using volume support and/or vasoactive drugs to maintain a systemic pressure above the estimated pulmonary pressure.
Administering surfactant endotracheally, associated with the use of iNO in newborns with PPH, has shown usefulness in reducing the mortality rate or ECMO.
Using extracorporeal membrane oxygenation (ECMO) has shown special efficacy in lung conditions associated with PPH in newborns.
Identifying and correcting hypoglycemia, hypocalcemia, and polycythemia.
Maintaining a neutral thermal environment and adequate blood pressure.