Pholcodine consumption increases the risk of perioperative anaphylaxis to neuromuscular blocking agents: the ALPHO case-control study
ABSTRACT Background Neuromuscular blocking agents (NMBAs) are the leading cause of perioperative anaphylaxis (POA), most reactions being IgE mediated. Allergic sensitization induced by environmental exposure to other quaternary ammonium-containing compounds, such as pholcodine, has been suggested. The aim of this study was to assess the relationship between pholcodine exposure and NMBA-related POA.Methods ALPHO is a multicentre case-control study, comparing pholcodine exposure within a year before anaesthesia between patients with NMBA-related POA (cases) and control patients with uneventful anaesthesia. Each case was matched to two controls by age, sex, type of NMBA, geographic area, and season. Pholcodine exposure was assessed by a self-administered questionnaire and pharmaceutical history retrieved from pharmacy records. The diagnostic values of anti-pholcodine and anti-quaternary ammonium specific IgE (sIgE) were also evaluated.Results Overall, 167 cases were matched with 334 controls. NMBA-related POA was significantly associated with pholcodine consumption (OR =4.2; CI95% 2.3-7.0) and occupational exposure to quaternary ammoniums (OR = 6.1; CI95% 2.7-13.6). Anti-pholcodine and anti-quaternary ammonium sIgEs had a high negative predictive value (99.9%) but a very low positive predictive value (< 3%) for identifying NMBA-related POA.Conclusion Patients exposed to pholcodine 12 months prior to NMBA exposure have a significantly higher risk of a NMBA-related POA. The low positive predictive values of pholcodine and quaternary ammonium sIgEs precludes their use to identify a population with a high risk of NMBA-related POA. The strong association of NMBA-related POA with occupational exposure suggests that other environmental factors may also lead to sensitization to NMBAs..
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Preprint| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
bioRxiv.org - (2022) vom: 16. Dez. Zur Gesamtaufnahme - year:2022 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
Mertes, Paul Michel [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| doi: |
10.1101/2022.12.12.22283353 |
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| PPN (Katalog-ID): |
XBI03817135X |
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| 520 | |a ABSTRACT Background Neuromuscular blocking agents (NMBAs) are the leading cause of perioperative anaphylaxis (POA), most reactions being IgE mediated. Allergic sensitization induced by environmental exposure to other quaternary ammonium-containing compounds, such as pholcodine, has been suggested. The aim of this study was to assess the relationship between pholcodine exposure and NMBA-related POA.Methods ALPHO is a multicentre case-control study, comparing pholcodine exposure within a year before anaesthesia between patients with NMBA-related POA (cases) and control patients with uneventful anaesthesia. Each case was matched to two controls by age, sex, type of NMBA, geographic area, and season. Pholcodine exposure was assessed by a self-administered questionnaire and pharmaceutical history retrieved from pharmacy records. The diagnostic values of anti-pholcodine and anti-quaternary ammonium specific IgE (sIgE) were also evaluated.Results Overall, 167 cases were matched with 334 controls. NMBA-related POA was significantly associated with pholcodine consumption (OR =4.2; CI95% 2.3-7.0) and occupational exposure to quaternary ammoniums (OR = 6.1; CI95% 2.7-13.6). Anti-pholcodine and anti-quaternary ammonium sIgEs had a high negative predictive value (99.9%) but a very low positive predictive value (< 3%) for identifying NMBA-related POA.Conclusion Patients exposed to pholcodine 12 months prior to NMBA exposure have a significantly higher risk of a NMBA-related POA. The low positive predictive values of pholcodine and quaternary ammonium sIgEs precludes their use to identify a population with a high risk of NMBA-related POA. The strong association of NMBA-related POA with occupational exposure suggests that other environmental factors may also lead to sensitization to NMBAs. | ||
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