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Dysphagia in patients with dementia: Alzheimer versus vascular
Suh MK, Kim H, Na DL.. Alzheimer disease and associated disorders, 2009-04-01
Topic: Risk, prevention and care in population studies
Plain-language summary
Patients with dementia develop dysphagia some time during the clinical course of their disease. The aim of this study was to compare the swallowing functions of the 2 most common types of dementia: Alzheimer disease (AD) and vascular dementia (VaD). Videofluoroscopic swallowing studies of the 2 patient groups were analyzed according to various oral, pharyngeal, and laryngeal variables of swallowing. The results indicate that there are some different patterns of swallowing disorders. The AD patients were significantly more impaired in "oral transit delay over 5 seconds" with liquids (chi2=7.065, df=1, P=0.008), whereas the VaD patients showed more deficits in "bolus formation and mastication" of semisolid food (chi2=4.64, df=1, P=0.039), "hyolaryngeal excursion" (chi2=4.102, df=1, P=0.043), "epiglottic inversion" (chi2=4.612, df=1, P=0.032), and "silent aspiration" (chi2=6.258, df=1, P=0.011). These results could indicate that the swallowing disorders of the AD group may result from sensory impairment in relation to dysfunctions in the temporoparietal areas, whereas the swallowing disorders of VaD group may primarily be caused by motor impairments due to disruptions in the corticobulbar tract. This study is noteworthy because it is one of the first attempts to differentiate between the swallowing symptoms of AD and VaD patients. A further study that includes patients with more severe degree of dementia (eg, patients over clinical dementia rating 3) might delineate additional discriminating swallowing patterns between the 2 dementia groups. In addition, a follow-up study exploring various kinematic characteristics of dysphagia would address physiologic issues of swallowing disorders as related to one of the most important clinical variables, laryngeal aspiration in the 2 dementia groups.
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APA 7th
Suh, M. K., Kim, H., & Na, D. L. (2009). Dysphagia in patients with dementia: Alzheimer versus vascular. Alzheimer disease and associated disorders. https://doi.org/10.1097/wad.0b013e318192a539
Vancouver
Suh MK, Kim H, Na DL. Dysphagia in patients with dementia: Alzheimer versus vascular. Alzheimer disease and associated disorders. 2009. doi:10.1097/wad.0b013e318192a539. PMID: 19474573.
BibTeX
@article{suh2009-19474573,
author = {Suh, M. K. and Kim, H. and Na, D. L.},
title = {{Dysphagia in patients with dementia: Alzheimer versus vascular}},
journal = {Alzheimer disease and associated disorders},
year = {2009},
doi = {10.1097/wad.0b013e318192a539},
pmid = {19474573},
url = {https://doi.org/10.1097/wad.0b013e318192a539}
}
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Key findings
- The results indicate that there are some different patterns of swallowing disorders.
- The AD patients were significantly more impaired in "oral transit delay over 5 seconds" with liquids (chi2=7.065, df=1, P=0.008), whereas the VaD patients showed more deficits in "bolus formation and mastication" of semisolid food (chi2=4.64, df=1, P=0.039), "hyolaryngeal excursion" (chi2=4.102, df=1, P=0.043), "epiglottic inversion" (chi2=4.612, df=1, P=0.032), and "silent aspiration" (chi2=6.258, df=1, P=0.011).
- These results could indicate that the swallowing disorders of the AD group may result from sensory impairment in relation to dysfunctions in the temporoparietal areas, whereas the swallowing disorders of VaD group may primarily be caused by motor impairments due to disruptions in the corticobulbar tract.
Study details
- Evidence strengthLow
How this study scored 36/100
Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people and randomized / blinded because the record does not state it. We have no data on journal's citation record, times cited, citations per year, impact for its field and year, cited by studies here, still being cited, senior author's track record, institution's track record and multicenter collaboration, so those were left out: it earned 21 of the 58 points we could judge it on, which is 36 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Alzheimer disease and associated disorders) |
| Journal's citation record | — / 4 | No journal record from OpenAlex — left out of this score |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 1 / 5 | 2009 — within 20 year(s) of the newest study here |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomized / blinded | 0 / 2 | No randomization or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | — / 7 | No citation count (not found in OpenAlex) — left out of this score |
| Citations per year | — / 5 | No citation count or no year — left out of this score |
| Impact for its field and year | — / 6 | No field-weighted citation impact (OpenAlex has none yet) — left out of this score |
| Cited by studies here | — / 6 | Not yet checked against this library's citation graph — left out of this score |
| Still being cited | — / 4 | No yearly citation counts — left out of this score |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | — / 3 | No institution listed in OpenAlex — left out of this score |
| Multicenter collaboration | — / 3 | Institutions not listed — left out of this score |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 19474573) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 21 / 58 | Scored on 11 of 20 parts. We have no data for the rest, so they are left out: 21 of the 58 points we could judge it on is 36 out of 100. |
| Total | 36 / 100 | — |
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