Table 1.

Characteristics of the Study Patients (N = 74)

	CRPS Patients, No. (%)
Mean age, y [SD]	43.2 [14.0]
Female gender	63 (85.1)
Unable to complete tilt table due to pain	8 (10.8)
Positive tilt table (of completers)	28 (42.4)
Unprovoked positive	4 (14.3)
Pretest symptoms
No symptoms	46 (62.2)
Only presyncopal symptoms	10 (13.5)
Any syncopal symptoms	18 (24.3)
During HUTT
Mean maximum heart rate [SD]	111.3 [21.8]
Mean maximum SBP [SD]	128.0 [15.9]
Mean maximum DBP [SD]	83.8 [9.9]
Mean heart rate—Holter monitor	82.5 (10.1)
Abnormal 2‐D echocardiogram	1/56 (1.8%)

Abbreviations: 2‐D, 2‐dimensional; DBP, diastolic blood pressure; SBP, systolic blood pressure; SD, standard deviation.