PMC7758650_01
Suprasternal ductal cut echocardiogram showing PDA measuring 3 mm in external diameter with L-R shunt. Abbreviations: PDA, patent ductus arteriosus; RPA, right pulmonary artery; LPA, left pulmonary artery; DA, ductus arteriosus.
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Initial echocardiogram (ECHO) on second day of life (DOL) revealed a very large PDA with an internal diameter of 2.9 mm (Figure 1), closed FO, enlarged LA with marked bulging of atrial septum into the right atrium (RA) (Figure 2), hyperdynamic left ventricle (LV), and global hypertrophy with low-velocity pulsatile flow profile through the PDA.
Subcostal coronal view of the right atrium (RA) and left atrium (LA). Note bulging of atrial septum into the right atrium outlined with arrows.
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Initial echocardiogram (ECHO) on second day of life (DOL) revealed a very large PDA with an internal diameter of 2.9 mm (Figure 1), closed FO, enlarged LA with marked bulging of atrial septum into the right atrium (RA) (Figure 2), hyperdynamic left ventricle (LV), and global hypertrophy with low-velocity pulsatile flow profile through the PDA.
Parasternal short axis M-mode of left ventricle. Note hypertrophy of anterior right ventricular wall, interventricular septum, and posterior wall of left ventricle.
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L-R shunting (Figure 4). LA/aorta ratio ranged from 1.6 to 2.6 with bulging of LA septum into RA, LV shortening fraction ranged from 44% to 59%, and ejection fraction ranged from 78% to 93% (Figure 3).
Doppler flow pattern of the patent ductus arteriosus, showing low-velocity pulsatile flow with left to right shunting.
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L-R shunting (Figure 4). LA/aorta ratio ranged from 1.6 to 2.6 with bulging of LA septum into RA, LV shortening fraction ranged from 44% to 59%, and ejection fraction ranged from 78% to 93% (Figure 3).