Pediatric anesthesia & critical care

Paediatric perioperative hypersensitivity: the performance of the current consensus formula and the effect of uneventful anaesthesia on serum tryptase

BJA OpenPublished Diagnostic accuracy study

Authors' conclusion

This is the first study suggesting the need for an adjusted formula in children to identify perioperative mast cell activation as tryptase is significantly lowered during uneventful anaesthesia.

Study context

Population
Children with suspected perioperative hypersensitivity (POH) from four reference centres in Belgium, France, and Denmark, and children with uneventful anaesthesia96 uneventful GA, 94 suspected POH
Comparison
New paediatric formula vs Current consensus formula
Outcome
Identification of mast cell activation in paediatric POH
Methodological detailsprospective control cohort, retrospective POH cohort, multicentre, 100 repeated five-fold cross-validation
  • Prospective control cohort
  • Retrospective POH cohort
  • Multicentre
  • 100 repeated five-fold cross-validation

Performance

As reported in the abstract

Test or modelSensitivitySpecificity
New paediatric formula53.2%96.9%
Current consensus formula31.9%— not stated in the abstract

Sensitivity

New paediatric formula53.2%
Current consensus formula31.9%

Specificity

New paediatric formula96.9%
Current consensus formula— not stated in the abstract

— not stated in the abstract

  • New paediatric formula vs Current consensus formula: P < 0.001

Further findings

Sensitivity, subpopulation with culprit identified (subgroup)

P = 0.008

Sensitivity

Sensitivity, grade 3-4 reactions (subgroup)

P < 0.001

Sensitivity

Internally cross-validated performance of new paediatric formula
53.3% · sensitivity · specificity 93.3%

Serum tryptase change during uneventful anaesthesia · 60-90 min after induction

Median decrease in serum tryptase
0.41 μg L-1 (−15.9%; P<0.001)

Original publication

Paediatric perioperative hypersensitivity: the performance of the current consensus formula and the effect of uneventful anaesthesia on serum tryptase. BJA Open. Published 17 January 2024. doi:10.1016/j.bjao.2023.100254

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