Parameter | hrPDA n = 6 | no-hrPDA n = 16 |
p
|
|---|
Left-to-right shunt PDA | 6 | 6 | Â |
LA/Ao | 1.6 (1.4–1.8) | 1.3 (1.2–1.5) | .15 |
PDA_diameter/kgBW
|
1.6 (1.4–2.1)
|
0.6 (.6–.6)
|
ns
|
RI_ACA | .86 (.83–.89) | .77 (.75–.82) | .01 |
RI_CA | 1 (.86–1) | .77 (.71–.82) | .04 |
LVPEP/LVET | .26 (.21–.28) | .31 (.28–.33) | .09 |
VTI_Ao/VTI_PA | 1.5 (.97–1.9) | .9 (.84–1.0) | .08 |
- Values are median (interquartile range) or n; separated in hemodynamically relevant (hr) Patent ductus arteriosus (PDA) and no-hrPDA. Left atrium (LA), Aortic root (Ao), diameter of PDA, measured at its most constricted point, per kilogram of bodyweight (BW), Resistive indices (RI) in anterior cerebral artery (ACA) and celiac artery (CA), Left ventricular (LV) pre-ejection period (PEP) and ejection time (ET), Velocity time integral (VTI) and pulmonary artery (PA), bold: The ratio of VTI_Ao to VTI_PA was the only parameter not used in the definition of hrPDA, italic: PDA diameter/kgBW could rarely be measured (n = 6; 4 hrPDA and 2 no-hrPDA), statistical test: oneway-ANOVA or Welch-test, as appropriate
