Increase of augmentation index (AIx@75): a promising tool for screening hypertensive pregnancy disorders

Table 2 Comparison of peripheral and central vascular pressures in the group of pregnant women with the control group

Peripheral blood pressure	Control (n = 77)	Pregnant Group (n = 77)	P-value
pSBP (mmHg)	115.50 ± 8.39	115.80 ± 9.84	0.8169^T
pDBP (mmHg)	75.84 ± 9.59	70.59 ± 8.23	0.0004^T*
pMAP (mmHg)	93.76 ± 8.46	90.30 ± 7.10	0.0618^T
pPP (mmHg)	39.64 ± 6.81	45.23 ± 9.43	< 0.0001^M*
Central blood pressure
cSBP (mmHg)	105.70 ± 8.42	104.00 ± 8.81	0.1916^M
cDBP (mmHg)	77.20 ± 9.58	72.29 ± 8.12	0.0008^T*
cMAP	86.70 ± 8.88	82.85 ± 7.76	0.0048^T*
cPP (mmHg)	28.55 ± 5.24	31.71 ± 7.04	0.0088^M*
Pulse pressure amplification	1.40 ± 0.13	1.44 ± 0.13	0.0953^T
Hemodynamic parameters
Stroke volume (ml)	61.81 ± 10.23	54.09 ± 8.43	< 0.0001^M*
Stroke volume index (ml/m²)	37.07 ± 6.71	31.52 ± 6.07	< 0.0001^T*
Cardiac output (l/min)	4.60 ± 0.46	4.54 ± 0.46	0.4824^M
Heart rate (bpm)	75.56 ± 10.18	84.74 ± 9.54	< 0.0001^T*
TVR (s*mmHg/ml)	1.24 ± 0.13	1.22 ± 0.10	0.1087^M
Cardiac index (l/min/m²)	2.76 ± 0.35	2.66 ± 0.33	0.0754^T
Aortic pulsatility	0.34 ± 0.081	0.39 ± 0.095	0.0006^M*
Arterial Stiffness indices
Pulse wave velocity (m/s)	4.97 ± 0.39	5.08 ± 0.45	0.1200^M
AIx@75 (%)	21.39 ± 6.43	27.61 ± 8.47	< 0.0001^T*
Reflexion coefficient (%)	58.53 ± 6.66	60.28 ± 6.43	0.983^T
Augmentation pressure (mmHg)	6.16 ± 2.21	7.50 ± 3.09	0.0129^M*

Data presented as mean ± standard deviation. SBP: Systolic blood pressure. DBP: Diastolic blood pressure. MAP: Mean arterial pressure. PP: Pulse pressure. TVR: Total vascular resistance. M means Mann-Whitney test and T means t-test. *p < 0.05 Pregnant group in relation to control group. Arterial stiffness as screening for gestational hypertensive disease

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