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- W1996620164 abstract "I am curious about the reasons that prompted the twin editorials on dexamethasone for postoperative nausea and vomiting (PONV) in September's edition of Anaesthesia 1, 2, especially ‘the case against’ raised by Drs Hartle & Bartlett 2. A number of published articles over the last 15 years provide evidence that a single prophylactic dose of the potent corticosteroid dexamethasone can safely reduce the likelihood of sickness after general anaesthesia. The use of dexamethasone as an antiemetic is recommended in the Royal College of Anaesthetists' 2012 Basic Level Training guide 3 and in the Association of Paediatric Anaesthetists of Great Britain and Ireland's 2008 guidelines 4. In Reading, since 2004, we have used a PONV protocol based on Apfel et al.'s simplified scoring system of four factors (female sex, history of motion sickness or PONV, non-smoking and use of postoperative opioids) 5; patients with any one of these are prescribed prophylactic antiemetics if they undergo general anaesthesia, and those with any three receive total intravenous anaesthesia (TIVA), rather than volatile agents. Dexamethasone has been the inexpensive first-line choice, partly because it enhances the patients' mood, but also because it is a superior antiemetic to propofol TIVA in the first 24 hours postoperatively 6. The combination of dexamethasone and ondansetron remains a popular choice for female non-smokers. Admissions for PONV after day-case surgery are rare. We have not seen gastric ulceration or psychiatric disturbance. A single dose of dexamethasone is administered to diabetics with prolonged PONV that interferes with oral intake of food, without disturbance of their blood sugar control. On visiting Kehlet's group in Copenhagen, we learned that widespread use of dexamethasone was not associated with any increase in postoperative infection in arthroplasty patients. Neither editorial mentioned that use of dexamethasone as a prophylactic antiemetic lies outside the manufacturer's marketing authorisation. The General Medical Council advises doctors to use drugs that are licensed for a particular indication in preference to those that lack a marketing authorisation for that purpose. In advocating elective treatment with a drug that is ‘off-label’, specific informed consent should be sought from the patient pre-operatively 7. The Royal College of Anaesthetists helpfully provide written information to this end, that can be provided for patients at pre-operative assessment clinics or by direction to the website 8." @default.
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- W1996620164 date "2013-11-12" @default.
- W1996620164 modified "2023-09-27" @default.
- W1996620164 title "Guidelines and use of dexamethasone for postoperative nausea and vomiting" @default.
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- W1996620164 doi "https://doi.org/10.1111/anae.12513" @default.
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