Skip to main content

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    
   < 100.000 cp/mL 4 (15.4) 8 (100.0) < 0.0001
   ≥100.000 cp/mL 22 (84.6) 0 (0.0)  
Gestational age    
   ≥37 weeks 10 (38.5) 4 (50.0) 0.69
   < 37 weeks 16 (61.5) 4 (50.0)  
Birth weight    
   ≥2,500 g 5 (19.2) 2 (25.0) 1.00
   < 2,500 g 21 (80.8) 6 (75.0)  
Respiratory problems at birth    
   No 21 (80.8) 6 (75.0) 1.00
   Yes 5 (19.2) 2 (25.0)  
Ventilatory assistance at birth    
   No 23 (88.5) 6 (75.0) 0.57
   Yes 3 (11.5) 2 (25.0)  
Severe bronchiolitis    
   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    
   No 9 (34.6) 4 (50.0) 0.68
   Yes 17 (65.4) 4 (50.0)  
Wheezes    
   No 12 (46.1) 5 (62.5) 0.69
   Yes 14 (53.9) 3 (37.5)  
Rales    
   No 4 (15.4) 2 (25.0) 1.00
   Yes 22 (84.6) 6 (75.0)  
Difficulties in feeding    
   No 13 (50.0) 3 (37.5) 0.69
   Yes 13 (50.0) 5 (62.5)  
Pneumonia at X-ray    
   No 8 (30.8) 4 (50.0) 0.41
   Yes 18 (69.2) 4 (50.0)  
  1. Percentages in parenthesis. P-value for comparison between groups, using chi-square or Fisher's exact test, as appropriate.