Is it really PPHN? Think before starting sildenafil!

The use of sildenafil has become a common practice in neonatal intensive care unit on clinical ground, because opinion by Pediatric Cardiologist is usually not available especially in peripheral centers. We consider it essential to share our experience that severe pulmonary arterial hypertension can be due to some unusual hemodynamics or extremely rare structural causes which do not require pulmonary vasodilator therapy.