Rhythmic data and 24-hour ECG- Holter results
| Characteristics . | Patients . |
|---|---|
| Corrected QT on surface ECG (ms) | 417 ± 29 |
| Corrected QT, >440 ms, n (%) | 24 (18) |
| Heart rate (bpm) | 72 ± 13 |
| Antiarrhythmic and anticoagulation medication, n (%) | 45 (35) |
| Beta-blockers | 43 (33) |
| Cordarone | 5 (4) |
| Flecaine | 4 (3) |
| Anticoagulation for AF history | 15 (12) |
| Indication for beta-blockers, n = 45, n (%) | |
| Antianginal | 5 (11) |
| Atrial hyperexcitability | 22 (49) |
| Ventricular hyperexcitability | 8 (18) |
| Dilated heart disease | 11 (24) |
| LV obstruction | 3 (7) |
| Arterial hypertension | 4 (9) |
| AA, n (%) | 34 (26) |
| Detail | |
| History of paroxysmal AF, n (%) | 11 (8) |
| Permanent or persistent AF, n (%) | 5 (4) |
| 24-Holter results | |
| Total PACs per 24 h, n = 125 | 34 (5-229), (min 0; max 25 204) |
| PAC of >720 per 24 h, n = 125 | 17 (14) |
| Episodic runs of ≥20 PACs | 6 (5) |
| ESVEA, n (%), n = 125 | 20 (16) |
| ESVEA without previous history of AF, n = 125 | 16 (13) |
| AF, n (%) | 7 (5) |
| New diagnosis of AF, n (%) | 2 (2) |
| Ventricular data | |
| Ventricular arrhythmia, n (%) | 26 (20) |
| Characteristics . | Patients . |
|---|---|
| Corrected QT on surface ECG (ms) | 417 ± 29 |
| Corrected QT, >440 ms, n (%) | 24 (18) |
| Heart rate (bpm) | 72 ± 13 |
| Antiarrhythmic and anticoagulation medication, n (%) | 45 (35) |
| Beta-blockers | 43 (33) |
| Cordarone | 5 (4) |
| Flecaine | 4 (3) |
| Anticoagulation for AF history | 15 (12) |
| Indication for beta-blockers, n = 45, n (%) | |
| Antianginal | 5 (11) |
| Atrial hyperexcitability | 22 (49) |
| Ventricular hyperexcitability | 8 (18) |
| Dilated heart disease | 11 (24) |
| LV obstruction | 3 (7) |
| Arterial hypertension | 4 (9) |
| AA, n (%) | 34 (26) |
| Detail | |
| History of paroxysmal AF, n (%) | 11 (8) |
| Permanent or persistent AF, n (%) | 5 (4) |
| 24-Holter results | |
| Total PACs per 24 h, n = 125 | 34 (5-229), (min 0; max 25 204) |
| PAC of >720 per 24 h, n = 125 | 17 (14) |
| Episodic runs of ≥20 PACs | 6 (5) |
| ESVEA, n (%), n = 125 | 20 (16) |
| ESVEA without previous history of AF, n = 125 | 16 (13) |
| AF, n (%) | 7 (5) |
| New diagnosis of AF, n (%) | 2 (2) |
| Ventricular data | |
| Ventricular arrhythmia, n (%) | 26 (20) |
The ordinal data are reported as mean ± standard deviation when they have a normal distribution or as median (Q1-Q3) when they do not have a normal distribution, and nominal data are presented as absolute value and percentage.
LVH, left ventricular hypertrophy; max, maximum; min, minimum; PAC, premature atrial complex; Q, quartile; .