Table 2 Comparisons of the clinical and echocardiographic characteristics of patients included in the two surveys (2003 versus 2010) of electrical cardioversion
Characteristic | 2003 survey (n = 436) | 2010 survey (n = 397) | P |
|---|---|---|---|
Mean ± SD or n (%) | Mean ± SD or n (%) | ||
Age; years | 65 ± 11 | 64 ± 11 | 0.03 |
Age; >70 years | 170 (39) | 119 (30) | 0.008 |
Male gender | 296 (68) | 285 (72) | 0.19 |
Weight; kg | 78.2 ± 13 | 80.9 ± 14 | 0.01 |
Height; cm | 167 ± 9 | 168 ± 9 | 0.14 |
Body surface area; m2 | 1.86 ± 0.19 | 1.90 ± 0.19 | 0.006 |
Hypertension | 222 (51) | 222 (56) | 0.14 |
Diabetes mellitus | 57 (13) | 75 (19) | 0.04 |
Previous embolism | 46 (12) | 29 (7) | 0.02 |
NYHA Class ≥ II | 135 (31) | 175 (44) | 0.0001 |
Left atrial size | 45.4±6.3 | 45.4±6.8 | 0.95 |
Left atrial dilatation (>50mm) | 61 (14) | 67 (17) | 0.42 |
Left ventricular hypertrophy | 113 (26) | 119 (30) | 0.21 |
LVEF (%) | 58 ± 14 | 56 ± 14 | 0.02 |
LVEF <30% | 8 (2) | 19 (5) | 0.05 |
Previous electrical cardioversion | 65 (15) | 87 (22) | 0.009 |
Duration of AF >1 year | 48 (11) | 59 (15) | 0.35 |
Anti-arrhythmic drugs | 327(78) | 296 (76) | 0.39 |
Amiodarone: | 268 (64) | 247 (62) | |
Ic: | 39 (9) | 32 (9) | |
Sotalol: | 9 (2) | 5 (1) | |
Others: | 11 (3) | 12 (3) | |
ACE inhibitor/ARB | 197 (45) | 197 (50) | 0.12 |