[Echocardiographic recognition of endarteritis of the pulmonary artery in patent ductus arteriosus].

We described the echocardiographic signs of pulmonary endarteritis and the importance of Doppler study in three patients with patent ductus arteriosus. The diagnosis and follow-up of this complication with noninvasive study would avoid the exposure of the patient to danger of dislodging the vegetations with the catheter, during invasive procedures.