Table 6.
ECG abnormalities, different from Long QTc, were detected in subjects identified by neonatal ECG screening.
| Single ECG Abnormality | Patients, No. (% of Total) | Multiple ECG Abnormality | Patients, No. (% of Total) |
|---|---|---|---|
| Right bundle branch focal block | 983 (54.5) | Right bundle branch focal block + Right ventricular prevalence | 61 (30.8) |
| Left axial deviation | 166 (9.2) | Right bundle branch focal block + Left axial deviation | 26 (13.1) |
| Nonspecific abnormalities of ventricular repolarization | 128 (7.1) | Right bundle branch focal block + Nonspecific alterations of repolarization | 8 (4.0) |
| Ventricular extrasystole | 83 (4.6) | Right bundle branch focal block + Supraventricular extrasystole | 6 (3.0) |
| Supraventricular extrasystole | 82 (4.5) | Right bundle branch focal block + Ventricular extrasystole | 6 (3.0) |
| Complete right bundle branch block | 66 (3.7) | Right bundle branch focal block + High voltages of QRS | 5 (2.5) |
| High-voltage QRS | 46 (2.5) | Right bundle branch focal block + PQ at upper limits | 5 (2.5) |
| Ventricular pre-excitation | 32 (1.8) | Right bundle branch focal block + Negative T wave | 2 |
| Increased P wave amplitude | 28 (1.5) | Right bundle branch focal block + Inf Q waves | 2 |
| FP at upper limits | 27 (1.5) | Right bundle branch focal block + Right ventricular head + Left axial deviation | 2 |
| Low QRS voltages | 20 (1.1) | Right bundle branch focal block + Sinus tachycardia | 2 |
| Tachycardia sinusale | 20 (1.1) | Blocco focale di branca dx + Deviazione assiale sx + Extrasistolia sopraventricolare | 1 |
| Bradicardia sinusale relativa | 18 (1.0) | Right bundle branch focal block + Supraventricular extrasystole + Ventricular extrasystole | 1 |
| FP at lower limits | 16 (0.9) | Right bundle branch focal block + Ventricular parasystole | 1 |
| AV conduction at the upper limits | 10 (0.6) | Right bundle branch focal block + Right ventricular prevalence + PQ at lower limits | 1 |
| Positive T | 10 (0.6) | Right branch focal block + Migrant steplight | 1 |
| Ectopic atrial rhythm | 9 (0.5) | Right bundle branch focal block + Right ventricular and atrial prevalence | 1 |
| Positive T wave | 8 0.4) | Right bundle branch focal block + Right ventricular prevalence + PQ at upper limits | 1 |
| Migrant step marker | 8 (0.4) | TOTAL Right bundle branch focal block | 132 (66.7) |
| Right axial deviation | 7 (0.4) | Right ventricular head + left axial deviation | 17 (8.6) |
| Left front hemiblock | 5 (0.3) | Right ventricular head + Deep Q waves | 7 (3.5) |
| Delayed right intraventricular conduction | 4 (0.2) | Right ventricular prevalence + PR at the experimental limits | 6 (3.0) |
| Respiratory sinus arrhythmia | 3 (0.2) | Right ventricular head + High QRS voltages | 4 (2.0) |
| ST elevation | 3 (0.2) | Right ventricular prevalence + Nonspecific abnormalities of ventricular repolarization | 4 (2.0) |
| Negative T | 3 (0.2) | Right ventricular prevalence + Ventricular extrasystole | 4 (2.0) |
| Dextrocardia | 2 (0.1) | Right ventricular head + Low QRS voltages | 4 (2.0) |
| QTc and PQ at the lower limits | 2 (0.1) | Right ventricular prevalence + Nonspecific abnormalities of ventricular repolarization | 3 (1.5) |
| Ventricular hyperkinetic arrhythmia | 1 | Right ventricular prevalence + Supraventricular extrasystole | 3 (1.5) |
| Appearance S1-Q3 | 1 | Right ventricular prevalence + PQ at upper limits | 2 (1.0) |
| AV dissociation | 1 | Right ventricular head + Appearance S1-Q3 | 1 |
| Right atrial engagement | 1 | Right ventricular prevalence + AV conduction at upper limits | 1 |
| Increased amplitude P waves | 1 | TOTAL Right ventricular prevalence | 56 (28.3) |
| Septal Q waves | 1 | Supraventricular extrasystole + Ventricular extrasystole | 7 (3.5) |
| Flat T waves | 1 | Ventricular pre-excitation + Right bundle branch focal block | 2 (1.0) |
| AV conduction extension | 1 | Ventricular pre-excitation + Right ventricular head | 2 (1.0) |
| qR in inferolateral site | 1 | TOTAL Ventricular pre-excitation | 4 (2.0) |
| Biventricular overloads | 1 | Left axial deviation + Sinus tachycardia | 1 |
| Signs of bi-atrial engagement | 1 | Left front hemiblock + Left axial deviation | 1 |
| Right overload | 1 | Biventricular hypertrophy + Supraventricular extrasystole | 1 |
| Right ventricular overload | 1 | PQ at lower limits + Supraventricular extrasystole | 1 |
| Diphasic T | 2 (0.1) | FP at lower limits + Probable junctional rhythm in migrant stepper | 1 |
| Paroxysmal supraventricular tachycardia | 1 | Ventricular pre-excitation + Supraventricular extrasystole | 1 |
| Total | 1805 | Migrant steplight + Supraventricular extrasystole | 1 |
| TOTAL | 198 |
Congenital heart diseases and/or valvulopathies.