Abstract
Background and aims: Acute illness might affect the swallowing function. However, there have been limited studies regarding dysphagia awareness in hospitalized patients, factors associated with dysphagia, and its outcomes. Methods: Consecutive patients in an internal medicine ward whom primary physicians prescribed oral diet were prospectively evaluated their swallowing problems by using a water swallow test (WST) and swallowing disturbance questionnaire (SDQ) within 48 hours after admission. Patients characteristics, nutritional status, readmission, and mortality rates were evaluated and compared between patients with and without impaired swallowing. Results: Among 131 enrolled patients (61 males, mean age 58±21 years), 20 patients (15.3%) had abnormal SDQ and 38 patients (29%) had abnormal WST. 19/20 patients with abnormal SDQ had abnormal WST while 19/38 patients with abnormal WST (50.0%) had abnormal SDQ. Patients with swallowing problems by either abnormal SDQ or WST were significantly older than those without (p<0.05). After adjusting for age, underlying neurological disorders (OR 2.96, 95%CI 1.03-8.47; p=0.04), admission diagnosis of pneumonia (OR 5.29, 95%CI 1.47-19.0, p=0.01), and moderate-to-severe malnutrition (OR 4.14, 95%CI 1.67-10.3, p=0.002) were significantly associated with abnormal WST, while malnutrition (OR 9.88, 95%CI 2.36-41.4; p=0.002) was independently associated with abnormal SDQ. For the follow-up period of 14 months, five patients (26.3%) who had abnormal SDQ/WST had aspiration pneumonia and 2 of them died while one patient with normal SDQ and WST (0.9%) had aspiration pneumonia (p<0.001). Conclusion: Dysphagia is an underrecognized problem in hospitalized patients. This problem was associated with underlying neurological diseases, malnutrition, the current diagnosis, and readmission due to pneumonia. Screening for dysphagia is recommended in hospitalized patients, particularly in patients at risk.