• pharynx
  • In the pharynx, raised Intrabolus pressure (IBP) with a steep intrabolus pressure gradient on HRM identifies clinically significant resistance to flow in the region of the upper oesophageal sphincter. (bmj.com)
  • In simple words, when there is excessive pressure within the lower pharynx, the weakest portion of the pharyngeal wall balloons out, forming a diverticulum which may reach several centimetres in diameter. (wikipedia.org)
  • Esophageal rupture in Boerhaave syndrome is thought to be the result of a sudden rise in internal esophageal pressure produced during vomiting, as a result of neuromuscular incoordination causing failure of the cricopharyngeus muscle (a sphincter within the pharynx) to relax. (wikipedia.org)
  • proximal
  • 7. The implantable device of claim 1 , wherein the device defines a proximal end, a distal end, and a midsection, and wherein strut arms disposed adjacent the proximal and distal ends are longer than strut arms disposed at the midsection. (google.es)
  • perfusion
  • Only 60 percent of volume was recovered with the duodenal aspiration tube, suggesting that marker perfusion to correct for distal loss of secretion is important to accurately quantify volume. (wikipedia.org)
  • Barrett
  • In addition to his work on oesophageal disease, Barrett also worked with Leonard Dudgeon, Professor of Pathology at the University of London, on the cytology of sputum in the diagnosis of pulmonary malignancy. (wikipedia.org)
  • symptoms
  • Other symptoms may include nighttime cough or recurrent pneumonia caused by food passing into the lower airways. (thefreedictionary.com)
  • Furthermore it provides reference values for future clinical studies to assess the clinical utility of including high viscosity fluids in HRM investigation of patients with oesophageal symptoms. (bmj.com)
  • pressure
  • Pressure variations in the lower esophageal sphincter will be measured continuously during the whole study. (clinicaltrials.gov)
  • There are studies showing that opioids given iv/im, in the vein or in the muscle, may decrease the pressure in the lower esophageal sphincter and hereby increase the risk of aspiration. (clinicaltrials.gov)
  • BT lowers anal pressure by preventing acetylcholine release from nerve terminals while topical nitrates act by donating nitric oxide (NO). The aims of the present study were to compare the therapeutic effect and lowering action on internal anal sphincter pressure of BT injection and local application of isosorbide dinitrate (ID) compared with BT given alone, in patients with chronic anal fissure (CAF) refractory to treatment with ID. (biomedsearch.com)
  • A series of anal pressure measurements, including resting basal pressure and resting pressure following topical ID (1.25, 2.5, and 3.75 mg), was carried out both before and two weeks after 20 U of BT injection into the internal anal sphincter. (biomedsearch.com)
  • Low frequency vibrations are detected by the lateral line system of sense organs that run along the length of the sides of fish, and these respond to nearby movements and to changes in water pressure. (wikipedia.org)
  • severe
  • The classic history of esophageal rupture is one of severe retching and vomiting followed by excruciating retrosternal chest and upper abdominal pain. (wikipedia.org)
  • Gastrointestinal
  • In upper gastrointestinal series examinations, the barium sulfate is mixed with water and swallowed orally, whereas in the lower gastrointestinal series (barium enema), the barium contrast agent is administered as an enema through a small tube inserted into the rectum. (wikipedia.org)
  • Barium enema examinations are used to study the large intestine and rectum and are classified as lower gastrointestinal series. (wikipedia.org)
  • This delineates the embryonic borders between the foregut and midgut, and is also the division commonly used by clinicians to describe gastrointestinal bleeding as being of either "upper" or "lower" origin. (wikipedia.org)
  • The lower gastrointestinal tract includes most of the small intestine and all of the large intestine. (wikipedia.org)
  • mechanism
  • One postulated mechanism concerns a vagally-mediated oesophageal-tracheobronchial reflex with airway sensory nerve activation and tachykinin release. (bmj.com)
  • Subsequent
  • 5 Subsequent studies in adults with asthma have confirmed that oesophageal acidification increases respiratory resistance and bronchial hyper-responsiveness. (bmj.com)
  • muscle
  • Its smooth muscle is innervated by involuntary nerves (sympathetic nerves via the sympathetic trunk and parasympathetic nerves via the vagus nerve) and in addition voluntary nerves (lower motor neurons) which are carried in the vagus nerve to innervate its striated muscle. (wikipedia.org)
  • Laimer's diverticulum is formed in Laimer's triangle (located inferior to the cricopharyngeus in the posterior midline above the confluence of the longitudinal layer of esophageal muscle). (wikipedia.org)
  • Laimer's triangle is covered only by the circular layer of esophageal muscle. (wikipedia.org)
  • The exact demarcation between the upper and lower tracts is the suspensory muscle of the duodenum. (wikipedia.org)
  • occur
  • In contrast, the term Boerhaave syndrome is reserved for the 10% of esophageal perforations which occur due to vomiting. (wikipedia.org)
  • respiratory
  • 4 As an alternative, a vagally-mediated oesophageal-tracheobronchial reflex (the reflex theory) was first postulated because oesophageal acidification was shown to increase respiratory resistance in dogs, which could be ablated with bilateral vagotomy. (bmj.com)
  • injection
  • The improved potency of ID on MARP after BT injection suggests a primary cholinergic tonus dominance in some patients and not, as previously claimed, anal sphincter insensitivity to nitrates. (biomedsearch.com)
  • study
  • The aim of this study was to compare oesophageal function with 200 ml high viscosity versus low viscosity liquid swallows in the physiologic, upright seated, position. (bmj.com)
  • significantly lower
  • When comparing prognostic factors between successful and unsuccessful treatment groups, the mean value for 4sIRP in the unsuccessful treatment group was significantly lower than that in the successful treatment group (P (ovid.com)
  • Left
  • Pain can occasionally radiate to the left shoulder, causing physicians to confuse an esophageal perforation with a myocardial infarction. (wikipedia.org)