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- W1597478849 abstract "We would like to report an unusual incident that could have resulted in life-threatening airway obstruction. A middle-aged woman was scheduled for elective removal of a metal plate from her right leg. She was admitted on the day of the surgery having followed the usual pre-operative starvation guidelines. Anaesthesia was induced with propofol and fentanyl. A size 3 laryngeal mask was inserted and the patient was allowed to breathe spontaneously. Anaesthesia and surgery proceeded uneventfully. At the end of the operation, the laryngeal mask was removed only to find a piece of chewing gum adherent to the upper surface of the cuff (Figure 1). The piece of chewing gum pressed against the upper surface of the laryngeal mask airway. On questioning the patient postoperatively, it transpired that a friend had advised her to chew a piece of chewing gum before her operation as this would help alleviate the discomfort of a dry mouth. At some time during the pre-operative period she had carefully manoeuvred the chewing gum into the upper buccal vestibule and subsequently become unaware of its presence. There are two important issues to be addressed. The first is that should we include the chewing of gum as part of the fasting rules and therefore should it form part of our pre-operative checklist? Bonner [1] described how overindulgence in chewing gum during the pre-operative fasting period in a 19-year-old woman had resulted in the regurgitation of 500 ml of clear fluid of neutral pH. Maltby [2] suggested that the problem might not be due to regurgitation of gastric contents but rather that the laryngeal mask caused saliva to pool in the mouth and pharynx. Dubin and colleagues [3] allowed groups of patients to chew sugarless gum either during the period prior to admission to the operating theatre suite or until immediately before induction of anaesthesia. The results were compared with control groups. They found no difference between the three groups in terms of gastric volume or pH, and also concluded there was no relationship between gastric content and the length of time from gum discard to induction of anaesthesia. In a similar study, though, Soreide et al. [4] found that sugar-free chewing gum increased gastric fluid volumes in a group of female nonsmokers compared with controls. They recommended that the chewing of gum should not occur on the morning of surgery. The other point relates to the danger of aspiration of the chewing gum itself. If pre-operative enquiry reveals that the patient has been chewing gum, ensure that they have neither concealed it in one of the various fossae or folds in their mouth, nor swallowed it. The withholding of such information (voluntarily or otherwise) can lead to potentially dangerous incidents during anaesthesia. On a final note, with sales of chewing gum in the UK in 1998 reaching £230 million, and with an expected rise of about 8% this year (Wrigleys, personal communication), can we foresee this as a real potential problem for the future?" @default.
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- W1597478849 date "1999-11-01" @default.
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- W1597478849 title "A sticky situation" @default.
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- W1597478849 doi "https://doi.org/10.1046/j.1365-2044.1999.01200.x" @default.
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