What do systematic reviews say?

Intervention not reported

The intervention showed no clear difference in total duration of mechanical ventilation (days) (low certainty).

• Endothelin receptor antagonists for persistent pulmonary hypertension in term and late preterm infants 2016 · Cochrane Headline outcomes only
  no estimate extracted
  37 participants
  Low

Intervention not reported

• Endothelin receptor antagonists for persistent pulmonary hypertension in term and late preterm infants 2016 · Cochrane Headline outcomes only
  no estimate extracted
  21 participants
  Low