Exploration of pulse wave analysis under reactive hyperemia and close to an arteriovenous fistula: a comparative analysis

Table 3 Hyperemic versus physiological state

_reac/phys	Mixed Collective n = 62		Healthy n = 23		Kidney1 n = 39		Comparison (Healthy/Kidney1)
_reac/phys	Median (min/max)	p	Median (min/max)	p	Median (min/max)	p	P
∆A2 [relative amplitude*s]	0.00979 (-0.00986/0.03944)	< 0.001	0.01877 (-0.00706/0.03705)	< 0.001	0.00705 (-0.00986/0.03944)	< 0.001	< 0.001
∆m2 [relative amplitude/s]	0.00039 (-0.00033/0.00168)	< 0.001	0.00052 (0.00025/0.00168)	< 0.001	0.00029 (-0.00033/0.00080)	< 0.001	< 0.001
∆T_max [ms]	21.6 (-33.3/125.5)	< 0.001	23.5 (-33.3/115.7)	0.001	19.6 (-23.5/125.5)	< 0.001	0.347
∆V_max [cm/s]	74.2 ( -46.1/154.0)	< 0.001	94.6 (36.2/154.0)	< 0.001	63.4 (-46.1/122.4)	< 0.001	0.002
∆V_diast [cm/s]	45.2 (16.60/98.5)	< 0.001	58.9 (39.1/98.5)	< 0.001	37.8 (16.6/93.9)	< 0.001	< 0.001

Abbreviations: reac/phys the hyperemic/physiological state, A2/m2 AUC/mean slope of the normalized pressure pulse curve between the systolic maximum and the end of systole, T_max time point of systolic maximum, V_max/V_diast maximum/diastolic flow velocity, ∆ indicating parameter inter-state difference (reac/phys), p p-value for inter-state testing, P p-value for inter-collective testing, Healthy collective of young vascular healthy individuals, Kidney1 collective of patients with chronic kidney disease and fistula

ISSN: 1471-2261