Lo YK, Fu TC, Chen CP, Yuan SS, Hsu CC. Involvement of swallowing therapy is associated with improved long-term survival in patients with post-stroke dysphagia.
Eur J Phys Rehabil Med 2020;
55:728-734. [PMID:
31958220 DOI:
10.23736/s1973-9087.19.05893-3]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND
The effects of swallowing therapy (ST) on long-term clinical outcomes in patients with post-stroke dysphagia (PSD) remain unclear.
AIM
This study explores the effect of ST, initiated within 6 months of the stroke onset, on long-term pneumonia-free and overall survival rates in PSD patients.
DESIGN
Retrospective cohort study.
SETTING
Longitudinal Health Insurance Database.
POPULATION
The study included 2994 eligible PSD patients between 2005 and 2013.
METHODS
Among the scrutinized PSD patients, ST was initiated during the nasogastric intubation (NGI) period and was implemented by physician discretion. Therefore, subjects who underwent ST were classified into the ST-intervention (STI) group and those without ST were classified into the non-ST (NST) group. Propensity score matching (PSM) was used to match age, sex, pneumonia events during the NGI period, the Charlson comorbidity index, and the National Institutes of Health Stroke Scale between the two groups. We started to follow all selected PSD patients 6 months after the onset of stroke for four years. Multivariable adjusted Cox regression and Kaplan-Meier estimations were conducted to assess the effects of ST and the ST duration on pneumonia-free and overall survival.
RESULTS
Overall, 1497 PSD patients aged approximately 68 years in each group were selected in this study. The pneumonia-free survival rate in STI subjects was 57.4% and was significantly greater (P=0.003) than that (54.2%) in NST subjects during the follow-up (F/U). A significantly improved (P<0.0001) overall survival rate was observed in STI subjects (75.0%) compared to NST subjects (63.7%) during the F/U. In STI subjects, ST duration ≥ 1 month was significantly (P=0.009) associated with reduced pneumonia incidence compared to those with ST duration<1 month.
CONCLUSIONS
Participation of ST within 6 months of the stroke onset is associated with decreased pneumonia incidence and improved long-term survival in selected PSD patients. In the selected STI subjects, longer ST duration may be valuable in pneumonia prevention.
CLINICAL REHABILITATION IMPACT
This study reveals that ST initiated within 6 months of the stroke onset may be associated with improved long-term survival in selected PSD patients.
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