Enhanced External Counterpulsation for Management of Postacute Sequelae of SARS-CoV-2 Associated Microvascular Angina and Fatigue: An Interventional Pilot Study

Table 2

Baseline characteristics related to postacute sequelae of SARS-CoV-2 (N = 10).

	n (%), unless otherwise stated
Contract COVID-19 infection
First wave	5 (50)
Second wave	4 (40)
Third wave	1 (10)
Admission to hospital	2 (20)
Microvascular dysfunction (MVD)	10 (100)
Verification of MVD through
Stress perfusion CMRI	10 (100)
IMR	7 (70)
IMR measurement
Mean (Sd, min-max)	63.6 (62.9, 21–184)
Grading of IMR
Normal, <25	2 (28.5)
Mild, 25–30	0
Moderate, 31–50	3 (43.0)
Severe, 51 or more	2 (28.5)
No data	3

CMRI, cardiac magnetic resonance imaging; IMR, index of microcirculatory resistance; MVD, microvascular dysfunction.