Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/10435
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dc.contributor.authorWong, I.-
dc.contributor.authorOmari, T.-
dc.contributor.authorMyers, J.-
dc.contributor.authorRees, G.-
dc.contributor.authorNair, S.-
dc.contributor.authorJamieson, G.-
dc.contributor.authorWormald, P.-
dc.date.issued2004-
dc.identifier.citationThe Laryngoscope, 2004; 114(9):1582-1586-
dc.identifier.issn0023-852X-
dc.identifier.issn1531-4995-
dc.identifier.urihttp://hdl.handle.net/2440/10435-
dc.descriptionCopyright © 2004 The American Laryngological, Rhinological & Otological Society-
dc.description.abstract<h4>Objective</h4>To determine the prevalence of acid reflux into the nasopharynx in patients with chronic sinusitis.<h4>Study design</h4>Prospective study of patients presenting to a specialist rhinology practice with chronic sinusitis.<h4>Methods</h4>Forty patients with chronic sinusitis underwent ambulatory 24 hour pH testing. The mean age of the patients was 56.3 years (25 Female, 15 Male). The studies were performed using a specially developed bifurcated 4 channel pH probe, incorporating 2 circumferential sensors positioned at the naso- and hypo-pharynx, and 2 unidirectional sensors positioned at the proximal and distal esophagus.<h4>Results</h4>The circumferential band sensors yielded a stable recording largely free of artefact allowing meaningful recordings to be obtained from thirty-seven patients. Twelve patients (32.4%) were diagnosed with gastroesophageal reflux. A total of 809 reflux episodes were recorded. Of these, 596 (73.7%) reached the distal esophagus, with 187 (23.1%) and 24 (3.0%) reaching the proximal esophagus and hypopharynx respectively. Only 2 episodes (0.2%) were recorded in the nasopharynx. This occurred in 2 of 37 patients (5%).<h4>Conclusions</h4>Acid reflux into the nasopharynx is a rare event in patients with chronic sinusitis even though a significant proportion (32.4%) have abnormal 24 hour pH studies. It is likely that alternative mechanisms other than direct acid contact are involved in the pathogenesis of chronic sinusitis.-
dc.language.isoen-
dc.publisherLippincott Williams & Wilkins-
dc.source.urihttp://dx.doi.org/10.1097/00005537-200409000-00015-
dc.subjectHumans-
dc.subjectGastroesophageal Reflux-
dc.subjectSinusitis-
dc.subjectChronic Disease-
dc.subjectGastric Acidity Determination-
dc.subjectMonitoring, Ambulatory-
dc.subjectRisk Factors-
dc.subjectProspective Studies-
dc.subjectReproducibility of Results-
dc.subjectElectrodes-
dc.subjectSignal Processing, Computer-Assisted-
dc.subjectAdult-
dc.subjectAged-
dc.subjectMiddle Aged-
dc.subjectFemale-
dc.subjectMale-
dc.titleNasopharyngeal pH monitoring in chronic sinusitis patients using a novel four channel probe-
dc.typeJournal article-
dc.identifier.doi10.1097/00005537-200409000-00015-
pubs.publication-statusPublished-
dc.identifier.orcidOmari, T. [0000-0001-5108-7378]-
dc.identifier.orcidMyers, J. [0000-0003-2157-7098]-
dc.identifier.orcidWormald, P. [0000-0001-7753-7277]-
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