European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2022
The diagnostic value of pepsin concentration in saliva for laryngopharyngeal reflux disease.
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Yu Lei, Li Rui, Du Linnan, Zhao Yuliang
Аннотация
OBJECTIVE: To explore the diagnostic efficacy of pepsin concentration in saliva for laryngopharyngeal reflux (LPR) disease.
METHODS: In this study, we recruited 40 participants with abnormal sensation of throat into the study who visited our hospital from March 2020 to December 2020. The 24 h multichannel intraluminal impedance and pH monitoring (24 h MII-pH), reflux symptom index (RSI) and reflux finding score (RFS), pepsin concentration in saliva were collected. The Cohen's kappa test and receiver-operating characteristic (ROC) curves were performed to determine and compare the sensitivity and specificity of five diagnostic methods: RSI; RFS, pepsin concentration, RSI + RFS, RSI + RFS + pepsin concentration.
RESULTS: The area under the curve (AUC) of RSI, RFS, pepsin concentration, RSI + RFS, RSI + RFS + pepsin concentration were 0.767, 0.733, 0.870, 0.750,0.867, respectively. That is, the pepsin concentration has maximum AUC (the cutoff point is 219.47 (ng/mL); the sensitivity and 1-specificity is 0.300, 0.933, respectively.). The positive predictive value was 90.3% (28/31), and the negative predictive value was 77.8% (7/9). The Cohen's kappa coefficients of the five diagnostic subgroups were: RSI 0.486 (95% CI 0.207-0.764, P = 0.001); RFS 0.333 (95% CI 0.021-0.644, P = 0.032); RSI + RFS: 0.517 (95% CI 0.205-0.829, P = 0.001); pepsin concentration: 0.699 (95% CI 0.379-0.931, P = 0.001); RSI + RFS + pepsin concentration: 0.500 (95% CI 0.181-0.819, P < 0.001).
CONCLUSION: The pepsin concentration has the maximum AUC area and highest consistency with the 24 h MII-pH. Therefore, it has certain value in the screening and diagnosis of diseases related to LPR disease.
METHODS: In this study, we recruited 40 participants with abnormal sensation of throat into the study who visited our hospital from March 2020 to December 2020. The 24 h multichannel intraluminal impedance and pH monitoring (24 h MII-pH), reflux symptom index (RSI) and reflux finding score (RFS), pepsin concentration in saliva were collected. The Cohen's kappa test and receiver-operating characteristic (ROC) curves were performed to determine and compare the sensitivity and specificity of five diagnostic methods: RSI; RFS, pepsin concentration, RSI + RFS, RSI + RFS + pepsin concentration.
RESULTS: The area under the curve (AUC) of RSI, RFS, pepsin concentration, RSI + RFS, RSI + RFS + pepsin concentration were 0.767, 0.733, 0.870, 0.750,0.867, respectively. That is, the pepsin concentration has maximum AUC (the cutoff point is 219.47 (ng/mL); the sensitivity and 1-specificity is 0.300, 0.933, respectively.). The positive predictive value was 90.3% (28/31), and the negative predictive value was 77.8% (7/9). The Cohen's kappa coefficients of the five diagnostic subgroups were: RSI 0.486 (95% CI 0.207-0.764, P = 0.001); RFS 0.333 (95% CI 0.021-0.644, P = 0.032); RSI + RFS: 0.517 (95% CI 0.205-0.829, P = 0.001); pepsin concentration: 0.699 (95% CI 0.379-0.931, P = 0.001); RSI + RFS + pepsin concentration: 0.500 (95% CI 0.181-0.819, P < 0.001).
CONCLUSION: The pepsin concentration has the maximum AUC area and highest consistency with the 24 h MII-pH. Therefore, it has certain value in the screening and diagnosis of diseases related to LPR disease.