Anne Riches

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BACKGROUND Upper gastrointestinal endoscopy is frequently performed on unsedated subjects. Pharyngeal anaesthesia is thought to improve patient tolerance to the procedure but the optimum dose of anaesthesia is not known. The aim of this study was to assess the benefits of low-dose vs. high-dose topical anaesthesia in unsedated gastroscopy. METHODS One(More)
BACKGROUND AND STUDY AIMS Upper gastrointestinal endoscopy is performed without sedation in many countries. Unsedated patients experience more discomfort during endoscopy than sedated patients, but few studies have examined factors which could be modified to minimize discomfort during the procedure. We assessed the effect of endoscope diameter on patient(More)
Oxygen is prescribed for hypoxaemic patients to increase alveolar oxygen tension and decrease the effort of breathing. Although principally life saving, in certain circumstances it can be lethal if prescribed and/or administered incorrectly. To ensure safe, effective delivery of oxygen, health professionals dealing with the administration, titration and(More)
The British Thoracic Society (BTS) guidelines for noninvasive ventilation (NIV) provide overwhelming evidence that NIV is effective in supporting patients with acute hypercapnic respiratory failure (AHRF) (BTS, 2002). AHRF, which causes a rise in carbon dioxide levels and a fall in pH, is common in patients presenting with acute exacerbations of chronic(More)
The main objective when treating hypoxia (a deficiency of oxygen in the tissues) and hypercapnia (a high concentration of carbon dioxide in the blood) is to give sufficient oxygen to ensure that the patient is safe and his or her condition does not deteriorate. However, while giving too little oxygen can result in hypoxia, which can result in death,(More)
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