Evaluation of swallowing function by two screening tests in primary COPD

Ohta, Kazunori; Murata, Kazuhisa; Takahashi, Toshiaki; Minatani, Shinobu; Sako, Shunji; Kanada, Yoshikiyo

doi:10.1183/09031936.00016909

Cited by 16 publications

(11 citation statements)

References 5 publications

(9 reference statements)

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“…In 1987, Coelho et al applied video fluoroscopy for the first time to demonstrate that COPD patients suffered from dysphagia and aspiration. These findings were confirmed in other studies that also reported dysphagia and aspiration commonly occurred in COPD patients . Our earlier study showed that nearly one third of recovering AECOPD patients aspirated saliva while in the supine position.…”

Section: Discussionsupporting

confidence: 90%

“…These findings were confirmed in other studies that also reported dysphagia and aspiration commonly occurred in COPD patients. [5][6][7][8][9][10][11] Our earlier study showed that nearly one third of recovering AECOPD patients aspirated saliva while in the supine position. Moreover, aspiration was significantly correlated with the number of one-year episodes of the AECOPD.…”

Section: Discussionmentioning

confidence: 99%

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Effects of exercise‐induced dyspnoea on the aspiration rate among patients with acute exacerbation of chronic obstructive pulmonary disease

Chen

et al. 2019

Clinical Respiratory J

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Purpose To use radionuclide imaging to investigate silent aspiration among patients recovering from an acute exacerbation of chronic obstructive pulmonary disease (AECOPD). We also evaluated the effects of exercise‐induced dyspnoea on silent aspiration in COPD patients. Patients and methods Recovering AECOPD patients admitted to the First Affiliated Hospital of Guangzhou Medical University between December 2013 and December 2015 were selected for the radionuclide aspiration test along with healthy volunteers of similar age. Aspiration‐negative AECOPD patients were randomized into two subgroups. Patients in group A performed symptom‐limited incremental cycle exercise test. Patients in group B were resting on the exercise bicycles. Aspiration‐negative healthy volunteers performed symptom‐limited incremental cycle exercise test (group C). Three groups performed a radionuclide aspiration test 30 min after exercise. Results The silent aspiration rates among recovering AECOPD patients and healthy volunteers were 44.19% (57/129) and 0 (0/18) (P = 0.00). The aspiration rates in groups A and B were 33.33% (10/30) and 23.33% (7/30), (P = 0.39) and groups A and C were 33.33% (10/30) and 0% (0/12), (P = 0.04). Conclusion Recovering AECOPD patients had significantly higher silent aspiration rates than healthy volunteers of similar age. The evidence is not strong enough to support the patients with exercise‐induced dyspnoea‐increased aspiration rate.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Effects of exercise‐induced dyspnoea on the aspiration rate among patients with acute exacerbation of chronic obstructive pulmonary disease

Chen

et al. 2019

Clinical Respiratory J

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“…The poor concordance between the results of SSPT and other screening tests (Table ) also indicates the possibility that SSPT is not useful in the otherwise healthy COPD population. Indeed, Ohta et al have shown that the RSST may be more sensitive in detecting dysphagia in patients with mild COPD; however, they did not show the relationships between RSST results and COPD exacerbation. The cutoff value of RSST swallow frequency for COPD may be different from that for cerebral stroke patients.…”

Section: Discussionmentioning

confidence: 90%

Repetitive saliva swallowing test and water swallowing test may identify a COPD phenotype at high risk of exacerbation

Yoshimatsu

Tobino

Sueyasu

et al. 2019

Clinical Respiratory J

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Introduction Patients with chronic obstructive pulmonary disease (COPD) are known to present with dysphagia from an early stage. Dysphagia leads to swallowing‐related complications, in turn leading to COPD exacerbation. Dysphagia screening is recommended; however little is known of its utility in detecting a COPD phenotype at risk for exacerbation. The simple swallowing provocation test (SSPT), considered to be a standard screening test, requires specific equipment, physician skill and patient discomfort. Objectives The aim of this study was to find an easier and less invasive measure to screen for dysphagia in patients with COPD. Methods We retrospectively reviewed patients with COPD who were screened for dysphagia [Repetitive saliva swallowing test (RSST), water swallowing test (WST), SSPT and a questionnaire] from June to November 2016. The patients were classified into two groups according to the presence of COPD exacerbation in the past 3 years (ie, exacerbation and non‐exacerbation group), and the dysphagia screening results were compared between the groups. Results Of the 80 cases included, 42 had 1 or more exacerbations in the past 3 years (exacerbation group), and 38 had none (non‐exacerbation group). Statistically significant differences between the groups were observed in the RSST, and vocal change in the WST (P < 0.05). There were no significant differences between the groups in the results of SSPT, COPD stage and other clinical status. Conclusions Compared to the SSPT, RSST and WST may be more appropriate screening methods in patients with COPD. A prospective study is necessary for further assessment.

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“…Ohta et al [39] investigated the swallowing function before exacerbation of COPD when it was at a mild stage by performing the simple two-step swallowing provocation test (STS-SPT) and the repetitive saliva swallowing test (RSST). Sixty-four patients with COPD were divided into three groups: mild, moderate and severe.…”

Section: Studies Performed In the 2000smentioning

confidence: 99%