• L B Guscoth and A M Cyna.
• Royal United Hospitals Bath, UK.
• Anaesthesia. 2022 Oct 1; 77 (10): 1113-1119.

AbstractRecent evidence suggests that how anaesthesia information is presented may influence patient treatment outcomes. We conducted an observational study of anaesthetic-based patient information leaflets across NHS Trusts in England for their nocebo terms vs. therapeutic terms, and how adverse effects were presented. In this study, 'nocebo' is wording that may predispose the patient to expect adverse events such as pain or nausea. Data were extracted and analysed for word frequency, weighted proportion and thematic analysis. In total, 42 patient information leaflets from 61 NHS Trusts were analysed. 'Pain' was the second most common word across the leaflets, median (IQR [range]) 0.82 (0.50-1.0 [0.12-1.47]) per 100 words, second only to 'anaesthesia'. In comparison, 'safe' was the most common positively valanced word which featured eight times less frequently than 'pain' 0.10 (0.07-0.18 [0.0-0.84]) and 'comfort' featured 16.5 times less than 'pain' 0.02 (0.0-0.05 [0.0-0.13]). Multiple examples of phrasing that could have potential nocebo effects included, 'you will need strong painkillers' suggesting 'strong pain' and the need for 'painkillers' rather than using therapeutic terms focusing on 'comfort', 'healing' and 'recovery'. Our results suggest a dominance of phrases with negative content in the presentation of anaesthesia information provided to patients. Clinicians need to be aware of inadvertent generation of nocebo-weighted vs. comfort-weighted communication with patients. Our study findings suggest an opportunity for more emphasis to be placed on therapeutic outcomes and effective mitigation strategies of anaesthesia risks to avoid potential unintended nocebo effects of anaesthesia information leaflets or websites.© 2022 Association of Anaesthetists.

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