tility of a modified laryngeal mask airway (LMA) called the LMA GASTRO (Trademark) for upper gastrointestinal endoscopic procedures

Royal Hobart Hospital0 个研究点目标入组 292 人开始时间: 2016年10月20日最近更新: 2020年1月13日

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•ASA I –II, older than 18 years of age, fasted at least 6 hours for solids and 2 hours for clear liquids, undergoing elective upper gastro-intestinal endoscopic procedures requiring deep sedation

•Patients at significant risk of pulmonary aspiration will be excluded based on anaesthetic clinical judgment after performing a clinical risk assessment. The clinical risk assessment will be performed based on patient history (focussing particularly on risk factors for aspiration) and physical examination to establish the risk of aspiration prior to enrolment. Possible risk factors for aspiration include:
•1. Increased gastric content: delayed gastric emptying including lap band in situ, gastric hyper secretion, overfeeding, lack of fasting (less than six hours solids and two hours for clear fluid).
•2. Increased tendency to regurgitate: symptomatic or uncontrolled gastro-oesophageal reflux, oesophageal strictures, Zenker Diverticulum, achalasia.
•3. Laryngeal incompetence: Emergency surgery, head injuries, cerebral infarct, neuromuscular disorders (Parkinson’s disease, Gullian Barre), muscular dystrophies (cerebral palsy, cranial neuropathies)

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