Characteristics of patients with chronic atrial fibrillation undergoing internal cardioversion attempts using a pulmonary artery/right atrium vector with two different catheter systems
| Internal cardioversion | |||
|---|---|---|---|
| Balloon catheter (group A) | Two catheter system (group B) | ||
| Number of patients | 32 | 42 | |
| Age | 60 (10) | 57 (8) | |
| Male/female ratio | 26/6 | 33/9 | |
| Body weight (kg) | 75 (13) | 78 (14) | |
| Height (cm) | 173 (11) | 176 (10) | |
| Left atrial size (mm) | 59 (6) | 61 (6) | |
| Underlying heart disease | |||
| Coronary artery disease | 7 | 9 | |
| Hypertension | 9 | 9 | |
| Valvar | 6 | 8 | |
| Dilated cardiomyopathy | 4 | 7 | |
| Hypertrophic cardiomyopathy | 0 | 1 | |
| Lone atrial fibrillation | 5 | 7 | |
| Miscellaneous | 1 | 1 | |
| Duration of current episode of AF (months) | 10.6 (6.2) | 9.7 (7.5) | |
| Range (months) | 0.5–16 | 0.5–34 | |
| Previous unsuccessful attempts of pharmacological conversion (number of patients) | 19 | 26 | |
Values are mean (SD). No signficant difference between groups for any parameter.