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. 2020 Jan 21;8(1):e14327. doi: 10.14814/phy2.14327

Table 2.

Changes in LV diastolic function and aortic stiffness assessed by mitral valve pulse flow and tissue Doppler

Parameter Day 1 Day 3 Week 1 Week 2 Week 4 Week 8 Overall time effect
MV E vel ( mm/s)
Control 336 ± 15 449 ± 21 542 ± 19 658 ± 20 920 ± 39 1,035 ± 30  
Hypoxia 314 ± 22 524 ± 16 541 ± 24 703 ± 26 847 ± 38 868 ± 32* p = .000
MV A vel (mm/s)
Control 436 ± 17 493 ± 30 475 ± 21 459 ± 17 575 ± 20 646 ± 30  
Hypoxia 408 ± 22 596 ± 20 545 ± 20 528 ± 25 619 ± 25 650 ± 35 p = .000
LV LW E’ vel (mm/s)
Control 13.3 ± 1.6 13.6 ± 1.2 16.4 ± 0.6 20.3 ± 1.0 44.3 ± 2.4 52.9 ± 2.8  
Hypoxia 9.5 ± 0.7 12.3 ± 0.6 14.4 ± 0.5 26.0 ± 1.7* , a 36.6 ± 2.9 52.6 ± 3.5 p = .000
LV LW A’ vel (mm/s)
Control 18.8 ± 1.9 18.4 ± 1.4 19.9 ± 0.8 19.4 ± 1.3 39.2 ± 2.0 46.4 ± 2.5  
Hypoxia 16.7 ± 1.0 18.9 ± 0.7 21.2 ± 0.5 29.8 ± 0.8* 43.4 ± 3.4 65.3 ± 5.0* p = .000
LV LW E’/A’ vel
Control 0.70 ± 0.02 0.73 ± 0.02 0.83 ± 0.03 1.08 ± 0.06 1.14 ± 0.04 1.16 ± 0.05  
Hypoxia 0.58 ± 0.03 0.65 ± 0.03 0.68 ± 0.02* 0.89 ± 0.08 0.85 ± 0.02* 0.82 ± 0.03* p = .000
AOd‐PWV (m/s)
Control 2.9 ± 0.2 2.4 ± 0.1 2.1 ± 0.1 2.2 ± 0.1 3.6 ± 0.2 3.9 ± 0.2  
Hypoxia 12.2 ± 0.3.1* 9.6 ± 1.4* 8.6 ± 2.5* 3.6 ± 0.3* 4.5 ± 0.5 5.4 ± 0.3* p = .000

AOd‐pulse wave velocity (PWV) at the diaphragm; MV‐mitral valve; LV LW‐left ventricle lateral wall, vel‐peak velocity. All data are presented as mean ± SE. Highlighted variables represent those with differences between prenatal hypoxia‐exposed and control pups at specific ages.

a

No statistical difference when the effect of litter was incorporated into the analysis.

*

p < .008 for differences between hypoxia exposed and control pups at a given age.