2008
DOI: 10.1097/mlg.0b013e318165e324
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Nasal Pepsin Assay and pH Monitoring in Chronic Rhinosinusitis

Abstract: A higher incidence of pharyngeal acid reflux events was found in patients with CRS (29 of 33, 88%) compared with the control patients (11 of 20, 55%). The difference was statistically significant (P = .01). The fluorometric pepsin assay was correlated to the results of 24-hour dual-probe monitoring for LPR diagnosis with a 100% sensitivity and 92.5% specificity. These data suggest that an association between CRS and LPR is present and that the detection of pepsin in nasal lavage fluid may provide a noninvasive… Show more

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Cited by 85 publications
(85 citation statements)
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“…However, a higher frequency of LPR determined by means of dual-channel 24-hour pH monitoring was found in a group of patients with CRS who had persistent CRS symptoms despite endoscopic sinus surgery 50 and a similarly higher frequency of LPR by pH monitoring and fluorometric pepsin assay of nasal secretions was found in a population of patients with CRS undergoing sinus surgery compared with a control group. 51 However, there are no controlled studies demonstrating improvement of CRS by means of antireflux therapy.…”
Section: Humoral or Innate Immune Deficiencymentioning
confidence: 99%
“…However, a higher frequency of LPR determined by means of dual-channel 24-hour pH monitoring was found in a group of patients with CRS who had persistent CRS symptoms despite endoscopic sinus surgery 50 and a similarly higher frequency of LPR by pH monitoring and fluorometric pepsin assay of nasal secretions was found in a population of patients with CRS undergoing sinus surgery compared with a control group. 51 However, there are no controlled studies demonstrating improvement of CRS by means of antireflux therapy.…”
Section: Humoral or Innate Immune Deficiencymentioning
confidence: 99%
“…Neither the Pincus et al 412 nor the DiBaise et al 413 study had a control group. Ozmen et al 414 showed a higher prevalence of pharyngeal reflux events (29/33) and positive nasal pepsin assay (26/33) in medically refractory CRS patients, as compared to controls (11/20 for each). Loehrl et al 415 found positive pharyngeal pH probes in 19 of 20 surgically refractory CRS patients, and positive nasal pepsin assays were found in all 5 patients tested.…”
Section: S55mentioning
confidence: 99%
“…The authors concluded that salivary pepsin assay might be a non-invasive method to assess for proximal reflux. While, Ozmen et al found 100% sensitivity and 92.3% specificity for pepsin assay in nasal lavage fluid in chronic rhinosinusitis patients [94], Printza et al did not demonstrate any peptic activity in 93 LPR patients' saliva samples [95]. Employing western blot technique for sputum and salivary pepsin samples in patients with extraesophageal reflux, Kim et al reported sensitivity and specificity of 89 and 68%, respectively based on the pH monitoring results [96].…”
Section: Diagnostic Considerationmentioning
confidence: 96%