Table 10.

Display of median (IQR) changes in flow rates through the MCA compared to the time elapsed since the onset of COVID-19 in subjects.

Subjects after COVID-19 Infection
Relative Change in Value after BHT and Value at Rest (%)	40 Days	300 Days	p *
PSV	15(11–20)	16 (11–18)	0.211
EDV	18 (16–24)	17 (14–22)	0.037
MV	25 (21–28)	22 (20–26)	0.015
RI	1.5 (−0.5–1.9)	1.4 (−0.6–2.1)	0.691
PI	3.1 (1.7–3.5)	3.3 (1.9–3.7)	0.199

Legend: BHT—breath-holding test, PSV—peak systolic velocity, EDV—end-diastolic velocity, MV—mean flow velocity, RI—resistance index, PI—pulsatility index. * Wilcoxon signed-rank test.