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Clinical significance of laryngopharyngeal reflux in patients with chronic obstructive pulmonary disease.

Abstract：

BACKGROUND:Although chronic obstructive pulmonary disease (COPD) is closely associated with gastroesophageal reflux disease (GERD), the clinical significance of laryngopharyngeal reflux (LPR) is not fully understood in COPD. METHODS:Prospective cohorts were established among 118 patients with COPD from March 2013 to July 2014. Thirty-two age-matched and sex-matched normal controls, who had routine health check-ups during the study period, were included. Laryngopharyngeal reflux finding scores (RFS) and reflux symptom index (RSI) for LPR were subjected to association analysis with severity and acute exacerbation of COPD during the 1-year follow-up. RESULTS:The mean age of patients enrolled in the study was 69.2±8.8 years, with 93.2% being male. Positive RFS (>7) and RSI (>13) were observed in 51 (42.5%) and six patients (5.0%), respectively. RFS and RSI were significantly higher in patients with COPD than in normal, healthy patients (P<0.001). RFS was significantly correlated with residual volume/total lung capacity (%, P=0.048). Scores for diffuse laryngeal edema, erythema, and hyperemia were significantly higher in the high-risk group (Global Initiative for Chronic Obstructive Lung Disease classification C and D; P=0.025 and P=0.049, respectively), while RSI was significantly higher in the more symptomatic group (Global Initiative for Chronic Obstructive Lung Disease classification B and D; P=0.047). RSI and RFS were significant predictors for severe acute exacerbation of COPD (P=0.03 and P=0.047, respectively), while only RSI was associated with severity of dyspnea. CONCLUSION:Laryngeal examination and evaluation of laryngeal reflux symptom could be a surrogate clinical indicator related to severe acute exacerbation of COPD. Further studies of LPR in COPD patients should be considered.

journal_name

Int J Chron Obstruct Pulmon Dis

journal_title

International journal of chronic obstructive pulmonary disease

authors

Jung YH,Lee DY,Kim DW,Park SS,Heo EY,Chung HS,Kim DK

doi

10.2147/COPD.S84337

subject

Has Abstract

pub_date

2015-07-15 00:00:00

pages

1343-51

eissn

1176-9106

issn

1178-2005

pii

copd-10-1343

journal_volume

10

pub_type

杂志文章

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