TABLE 3.

Studies showing that reduced response to adrenergic stimulation is correlated with cardiac adverse outcome in patients with idiopathic DCM.

Paper	Non-responders, responders	Outcome measured	Follow up time	Adverse events (responders)	Adverse events (non-responders)
(84)	38, 33	Cardiac mortality	60 mo	9%	42%
(85)	11, 10	Δ LVEF, Δ LV sphericity	6 mo	0%	45%
(86)	11, 7	Δ LVEF improvement	15 mo	0%	36%
(87)	83, 103	Cardiac mortality	15 mo	3%	25%
(88)	89, 43	Mortality and/or hospitalization	40 mo	16%	49%
(89)	13, 24	Cardiac mortality	60 mo	34%	76%
(90)	15, 28	Mortality and/or hospitalization	23–67 mo	11%	67%

Data partially based on Waddington (81).