Methods:-
The child required inotropic support of dobutamine,dopamine and epinephrine for which umbilical vein and artery catheterization was done. The neonate developed features of persistent pulmonary hypertension requiring him milronin and sildenafil. On 5th days of life, the neonate developed pale and cold peripheries and on examination bilateral femoral pulses were not palpable. Immediate ultrasound with doppler of the abdomen was done which showed echogenic focus measuring 0.27cm*0.9 cm in descending thoracic aorta likely thrombosis with 54% occlusion of descending thoracic aorta. Umbilical lines were removed immediately and enoxaparin along with iv antibiotics started. This child received enoxaparin for 4 weeks, inotropes for 8 days and antibiotics for 3 weeks.