Table 4 Associations between sinoatrial block and different variables in infants with bronchiolitis and RSV infection.
From: Altered cardiac rhythm in infants with bronchiolitis and respiratory syncytial virus infection
Variable | Patients with sinoatrial block (n = 26) | Patients without sinoatrial block (n = 8) | P |
|---|---|---|---|
RSV viral load | Â | Â | Â |
   < 100.000 cp/mL | 4 (15.4) | 8 (100.0) | < 0.0001 |
   ≥100.000 cp/mL | 22 (84.6) | 0 (0.0) |  |
Gestational age | Â | Â | Â |
   ≥37 weeks | 10 (38.5) | 4 (50.0) | 0.69 |
   < 37 weeks | 16 (61.5) | 4 (50.0) |  |
Birth weight | Â | Â | Â |
   ≥2,500 g | 5 (19.2) | 2 (25.0) | 1.00 |
   < 2,500 g | 21 (80.8) | 6 (75.0) |  |
Respiratory problems at birth | Â | Â | Â |
   No | 21 (80.8) | 6 (75.0) | 1.00 |
   Yes | 5 (19.2) | 2 (25.0) |  |
Ventilatory assistance at birth | Â | Â | Â |
   No | 23 (88.5) | 6 (75.0) | 0.57 |
   Yes | 3 (11.5) | 2 (25.0) |  |
Severe bronchiolitis | Â | Â | Â |
   No | 23 (88.5) | 8 (100.0) | 1.00 |
   Yes | 3 (11.5) | 0 (0.0) |  |
Rectal temperature ≥38°C |  |  |  |
   No | 21 (80.7) | 6 (75.0) | 0.98 |
   Yes | 5 (19.2) | 2 (25.0) |  |
Dyspnea | Â | Â | Â |
   No | 9 (34.6) | 4 (50.0) | 0.68 |
   Yes | 17 (65.4) | 4 (50.0) |  |
Wheezes | Â | Â | Â |
   No | 12 (46.1) | 5 (62.5) | 0.69 |
   Yes | 14 (53.9) | 3 (37.5) |  |
Rales | Â | Â | Â |
   No | 4 (15.4) | 2 (25.0) | 1.00 |
   Yes | 22 (84.6) | 6 (75.0) |  |
Difficulties in feeding | Â | Â | Â |
   No | 13 (50.0) | 3 (37.5) | 0.69 |
   Yes | 13 (50.0) | 5 (62.5) |  |
Pneumonia at X-ray | Â | Â | Â |
   No | 8 (30.8) | 4 (50.0) | 0.41 |
   Yes | 18 (69.2) | 4 (50.0) |  |