Skip to main content

Table 2 AARs before and after the policy change

From: The effect of abolishing instructions to fast prior to contrast-enhanced CT on the incidence of acute adverse reactions

  AARs Incidence
Severity Types Before policy change (n = 43,927) After policy change (n = 14,676)
Overall    705 (1.60%) 205 (1.40%)
Allergy-like/hypersensitivity Mild Urticaria/itching/erythema 313 (0.71%) 103 (0.70%)
Moderate Bronchospasm 0 0
Facial/laryngeal edema 0 1 (0.01%)
Severe Hypotensive shock 25 (0.06%) 7 (0.05%)
Respiratory arrest 0 0
Cardiac arrest 0 0
Chemotoxic Mild Nausea 137 (0.31%) 26 (0.18%)*
Vomiting 55 (0.12%) 23 (0.16%)
Anxiety 175 (0.40%) 45 (0.31%)
Vasovagal reaction which resolve spontaneously 0 0
Moderate Vasovagal reaction 0 0
Severe Arrhythmia 0 0
Convulsion 0 0
  1. This classification was modified from ESUR guidelines on contrast media ver. 10.0 [5]
  2. *p = 0.006