The Incidence of Post Stroke Pneumonia and the Use of Modified Water Swallowing Test in Acute Stroke Patients


  • ธันยพร สุขพงษ์ไทย Maharat Nakhon Ratchasima Hospital


dysphagia screening, modified water swallowing test, post stroke pneumonia


Background and Objective: Dysphagia is a common problem after stroke which may lead stroke patients to have a potential for life-threatening complications such as pneumonia. Therefore, the universal screening of swallowing function is recommended. This study aims to evaluate a result of modified water swallowing test (MWST) applied in stroke units and incidence of pneumonia after stroke.

Materials and Methods: Data were collected from the Maharat Nakhon Ratchasima stroke registry between January 1, 2017 to December 31, 2017.

Results: A total of 98 patients were enrolled, of these 64 (69.4%) patients were documented MWST and 34 (34.7%) patients were not. In the documented group, 45 (71.4%) patients met the MWST screening criteria, 25 (55.6%) patients passed and 20 (44.4%) patients failed the screening test but only 3 (5.3%) patients were referred for a rehabilitation program. Incidence of aspiration pneumonia was 73.5 % (72 of 98 patients). In a group of patients who were screened by MWST, pneumonia was found in 85% (17 of 20 patients) of patients with MWST score 1-4 (failed) and 60% (15 of 25 patients) with MWST score 5 (passed).

Conclusion: Most stroke patients have dysphagia screening but only a few patients who failed screening were referred for swallowing rehabilitation program. The further expansion of the screening strategies, and management is necessary to reduce post stroke pneumonia.



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How to Cite

สุขพงษ์ไทย ธ. The Incidence of Post Stroke Pneumonia and the Use of Modified Water Swallowing Test in Acute Stroke Patients. J Thai Stroke Soc [Internet]. 2019 Dec. 23 [cited 2024 Jul. 25];18(3):16. Available from:



Original article