Research Article

Chinese Medicine Shensongyangxin Is Effective for Patients with Bradycardia: Results of a Randomized, Double-Blind, Placebo-Controlled Multicenter Trial

Table 1

Basic characteristics of study population.

GroupsTrial group ( )Control group ( )

Gender M/F ( )60/5547/57
Height (cm)
Weight (kg)
Systolic blood pressure (mmHg)
Diastolic blood pressure (mmHg)
Heart rate (bpm)
QT interval (ms)
Left ventricular ejection fraction (%)
Left ventricular end diastolic dimension (mm)
NYHA class, (%)
 I95 (82.6)86 (82.7)
 II20 (17.4)18 (17.3)
Hypertension, (%)37 (32.2)32 (30.8)
Ischemic heart disease, (%)32 (27.8)39 (37.5)
Diabetes mellitus (%)6 (5.2)7 (6.7)
History of bradycardia (%)13 (11.3)7 (6.7)
Types of bradycardia (%)
 Sinus bradycardia, sinus pauses64 (55.7)65 (62.5)
 Atrioventricular block11 (9.6)8 (7.7)
 Bradycardia-tachycardia syndrome40 (34.8)31 (29.8)