Clinical Measurements in Gastroenterology by David Evans

By David Evans

Royal London institution of drugs & Dentistry, U.K. First in a sequence of handbooks, created via 'The scientific size affiliates' of the British Society of Gastroenterology, devoted to elevating the criteria of methods and attempt analyses. DNLM: Gastrointestinal System--physiopathology.

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Sample text

As described by Logemann [ 7 ] , this manoeuvre physically narrows the inlet to the airway by bringing the tongue base over the laryngeal vestibule, thus protecting the airway. In cases where there is a delayed initiation of the swallow and premature leakage of the bolus, this manoeuvrealso widens the valleculae so that thebolus is held in thevalleculae rather than spinning directly into the larynx. Conversely, if the headis extended, it mechanically widens the laryngeal vestibule and narrows thevalleculae [51.

G. 5 cm to nares inR1 (Pig. 16b). g. 5 cm in R 1 (Fig. 16b). Chapter 3 et Length of sphincter from the distal margin to PIP. onents of the L Length of sphincter from thePIP to theproximal margin. The overall LOS length and intra-abdominal and intra-thoracic components shouldbe reported for each channel. This ismeasured at thesite of maximum intra-abdominal sphincter pressure (Fig. 18a,b). Relaxation is expressed numerically for each portlrecording site. Overall response is classifiedas being: complete; incomplete or partial; inconsistent; absent.

Time interval betweenthe onset and endof contraction 120 mmHg15 0 120 11 mmHg 0 120 6 " 7 " mmHg 0 120 2 mrnm 0 10 secs Fig. 30 The effect of rapid repetitive swallowing which inhibits oesophageal contractile activity. Thisis a normal phenomenon andillustrates the need for control of swallow frequency in the assessment of propagation. Pig. Solid state six sensor catheter; P-25is in the upperoesophagus, P-5is in the LOS and P in the stomach.

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