Characteristics of patients and radionuclide angiography derived left ventricular filling parameters of 17 patients with lone atrial fibrillation (AF) direct post cardioversion compared to 17 normal controls (mean (SD))
| Control (n=17) | Lone AF (n=17) | |
|---|---|---|
| *p<0.05 v control; **p<0.01 v control; ***p<0.001 v control. | ||
| †For AF patients: after cardioversion. | ||
| AFF, additional filling fraction; DF, diastasis filling fraction; EDF, early diastolic filling fraction; EDV, end diastolic volume; FS, fractional shortening; FV, filling volume; LA (AP), left atrium apical view; LA (LA), left atrium long axis; LVEDD, left ventricular end diastolic diameter; LVESD, left ventricular end systolic diameter; LVEF, left ventricular ejection fraction; PFR, peak filling rate; TPFR, time to peak filling rate. | ||
| Age (years) | 57 (11) | 65 (13)* |
| Sex (male/female) | 7/10 | 11/6 |
| Atrial fibrillation duration (median, range, days) | – | 135 (60–1215) |
| Echocardiography (mm) | ||
| LVEDD | 48 (5) | 45 (5) |
| LVESD | 29 (4) | 27 (2) |
| FS (% of LVEDD) | 39 (6) | 39 (5) |
| LA (LA) | 35 (6) | 42 (5)* |
| LA (AP) | 51 (2) | 61 (7)** |
| Heart rate (per min)† | 66 (8) | 67 (11) |
| Electrocardiography | ||
| PR interval (ms)† | 165 (19) | 215 (22)*** |
| QRS width (ms)† | 91 (9) | 90 (21) |
| Systolic blood pressure (mm Hg)† | 137 (14) | 120 (13) |
| Diastolic blood pressure (mm Hg)† | 84 (7) | 66 (7)*** |
| Radionuclide angiography | ||
| LVEF (% of EDV)† | 61 (5) | 58 (5) |
| PFR (FV/s) | 3.28 (0.64) | 3.81 (0.67)* |
| TPFR (ms) | 199 (42) | 155 (44)** |
| EDF (%FV) | 67 (7) | 69 (6) |
| DF (%FV) | 14 (7) | 18 (5) |
| AFF (%FV) | 31 (5) | 24 (6)** |