Table 4.

Impact of the coronavirus outbreak on routine clinic operations of centers in states with a high reported incidence of COVID-19 relative to a low reported incidence

	Low COVID-19 Incidence		High COVID-19 Incidence
	Before	After	Before	After
Clinic visits
Typical number of weekly outpatient visits, median (IQR)	35 (25–50)	25 (6–40)	30 (20–40)	9 (5–20)
Centers with routine formal telephone visits, n (%)	1 (4)	18 (72)	3 (9)	30 (91)
Centers with routine video-enabled visits, n (%)	2 (8)	22 (88)	3 (9)	32 (97)
Testing, n (%)	n = 23 responding		n = 32 responding
Centers obtaining fewer echocardiograms	Ref	20 (87)	Ref	30 (94)
Of these, centers with 60–99% reduction		10 (50)		20 (67)
Of these, centers with total cessation		2 (10)		3 (10)
Centers obtaining fewer RHCs	Ref	21 (91)	Ref	28 (88)
Of these, centers with 60–99% reduction		11 (52)		23 (82)
Of these, centers with total cessation		3 (14)		1 (4)
Centers obtaining fewer CTPAs	Ref	13 (57)	Ref	22 (69)
Of these, centers with 60–99% reduction		4 (31)		14 (64)
Of these, centers with total cessation		2 (15)		3 (14)
Centers obtaining fewer $\dot{\mathrm{V}}/\dot{\mathrm{Q}}$ scans	Ref	22 (96)	Ref	28 (88)
Of these, centers with 60–99% reduction		8 (36)		15 (54)
Of these, centers with total cessation		6 (27)		6 (21)
Centers who have switch to Q scans only	Ref	12 (52)	Ref	9 (28)
Treatment, n (%)	n = 23 responding		n = 33 responding
Centers limiting new oral therapy prescriptions	Ref	5 (22)	Ref	5 (15)
Of these, centers with 60–99% reduction		1 (20)		1 (20)
Of these, centers with total cessation		0 (0)		0 (0)
Centers limiting new i.v./s.c. prescriptions	Ref	6 (26)	Ref	11 (33)
Of these, centers with 60–99% reduction		1 (17)		4 (36)
Of these, centers with total cessation		2 (33)		1 (9)
Centers with fewer transplant referrals	Ref	4 (17)	Ref	11 (33)
Of these, centers with 60–99% reduction		1 (25)		1 (9)
Of these, centers with total cessation		1 (25)		2 (18)

Definition of abbreviations: COVID-19 = coronavirus disease; CTPA = computed tomographic pulmonary angiogram; IQR = interquartile range; i.v. = intravenous; Q = perfusion; Ref = referent; RHC = right heart catheterization; s.c. = subcutaneous; $\dot{\mathrm{V}}/\dot{\mathrm{Q}}$ = ventilation–perfusion.