BMJ2mon
Peak systolic to end diastolic flow velocity ratio is associated with ductal patency in infants below 32 weeks of gestation
Echo parameters revealed that ductal size on colour Doppler (2.5 mm vs 1.5 mm, p=0.003), end diastolic flow velocity (57 m/s vs 147 m/s, p<0.001) and peak systolic to end diastolic flow velocity ratio ...