Table 1. Cardiac autonomic nervous system findings in patients with DM1.

Findings	Patients (n = 20)
Autonomic dysfunction	19 (95%)
Orthostatic hypotension	18 (90%)
Sympathetic dysfunction	15 (75%)
Vagal hyperactivity	13 (65%)
Vagal dysfunction	7 (35%)
Sympathetic hyperactivity	4 (20%)
Normal autonomic function	1 (5%)