Table 1.

Best evidence studies describing the initial presenting manifestation of cardiac sarcoidosis

Reference	Patient group	Main initial presentation
		AVB	VT	HF	SCD	Others
Ekstrom et al.15	Nationwide registries (1998-2015), n = 351	42	14	17	14	14
Nordenswan et al.16	Nationwide registries (1988-2015), n = 325	44	13	15	14	14
Fussner et al.12	2 academic medical centres in Minnesota and Calgary (1994-2014), n = 91∗	34	24	52	N/A	15
Kandolin et al.9	22 hospitals in Finland (1988-2012), n = 110	44	28	18	5	6
Kandolin et al.10	Single centre (2000-2010), n = 55	47	29	16	4	4

Data are given in percentages.

AVB, atrioventricular block; HF, heart failure; N/A, not available; SCD, sudden cardiac death; VT, ventricular tachycardia.

^∗Twenty patients had more than 1 feature at presentation.