Trial reportNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2022
Accuracy of Dysphagia Standard Assessment (DSA®) bedside screening test: a flowchart for patient eligibility.
Trial report in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 2 citations in OpenAlex.
- Pharmacological and speech-language pathology management of dysphagia in patients with myasthenia gravis.Naunyn-Schmiedeberg's archives of pharmacology · 2026Review
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10 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundOropharyngeal dysphagia (OD) screening tests have improved patient management; however, the complex applicability and high percentage of false negatives do not allow these tests to be considered completely reliable if not supported by an instrumental investigation. The aim of the present study is to evaluate an OD screening test, the Dysphagia Standard Assessment (DSA®) with different volumes and viscosities. MATERIALS AND
methodsProspective study of 72 patients evaluated for suspected OD through a double-blind methodology conducted by two operators. All patients underwent fiberoptic endoscopic evaluation of swallowing (FEES) as a reference test and a separate DSA® test. DSA® was performed by administering boluses with different viscosities, with the signal of interruption of the test being: onset of the cough reflex, wet voice after swallowing, and/or desaturation of O2 ≥ 5%. The Penetration-Aspiration Scale (PAS) was evaluated by FEES. The cut-off identified to diagnose OD was PAS ≥ 3.
resultsThe test showed an accuracy of 82%, a sensitivity of 0.93 (95% C.I. 0.84-0.97), and a specificity of 0.78 (95% C.I. 0.67-0.87); positive predictive value 0.55 (95% C.I. 0.43-0.67); negative predictive value 0.97 (95% C.I. 0.90-0.99), positive likelihood ratio 4.37 (95% C.I. 3.6-5.2); likelihood negative ratio 0.08 (95% C.I. 0.06-0.09).
conclusionsAccording to the preliminary results, the test showed good outcomes in determining the presence or absence of OD with a wide spectrum of applicability with some limitations that could be overcome by the selection of a target population. For this reason, a flowchart to address patient eligibility was developed.
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