Usefulness of citric cough test for screening of silent aspiration in subacute stroke patients: a prospective study

Archives of Physical Medicine and Rehabilitation
Anna Guillén-SolàEster Marco

Abstract

To detect silent aspiration in a homogeneous sample of stroke patients using the citric acid cough test. Prospective study. Public university tertiary hospital. Consecutive subacute stroke patients (N=134; 74 men, 60 women; mean age ± SD, 62.2±11.9y; 11.7±9.9d after stroke) who had complained of dysphagic symptoms, referred for rehabilitation from December 2010 to October 2012. All patients were administered a citric acid cough test and underwent a videofluoroscopic swallowing study (VFSS). A reduced or an absent response on the citric acid cough test was considered when cough peaks were ≤4. A control group of healthy volunteers was also screened. The citric acid cough test results were compared with the VFSS results, which were used as a criterion standard. There were 36 patients with a positive citric acid cough test, of which the VFSS revealed penetration in 14 cases (38.9%), aspiration in 5 (13.9%), silent aspiration in 5 (13.9%), and normality in 12 patients (33.3%). The sensitivity and specificity indexes for the reliability of citric acid cough test as a screening method for silent aspiration in comparison with the VFSS were .19 and .71, respectively. Other comparisons were made between silent aspirators (Penetration Asp...Continue Reading

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Citations

Nov 27, 2015·Archives of Physical Medicine and Rehabilitation·Shou-Wei YueLei Chu
Mar 20, 2016·Journal of Critical Care·Molly KallesenMaggie-Lee Huckabee
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Feb 26, 2020·Dysphagia·James A Curtis, Michelle S Troche
Jul 22, 2019·Pulmonary Pharmacology & Therapeutics·Emma WallacePhoebe Macrae

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