Defining Physical Properties of Fluids for Dysphagia Evaluation and Treatment

Robbins, JoAnne; Nicosia, Mark A.; Hind, Jacqueline; Gill, Gary D.; Blanco, Roberto; Logemann, Jeri A.

doi:10.1044/sasd11.2.16

Cited by 68 publications

(47 citation statements)

References 7 publications

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“…Baseline viscosity measures of liquids were all below 10 cP at a shear rate of 50 s )1 , similar to other reported findings and consistent with the definition of a ''thin'' liquid [20,21].…”

Section: Methodssupporting

confidence: 79%

“…The most common application of this type of measurement is the quantification of a fluidÕs viscosity when compared to either a target performance or when compared against another fluid. For example, similar Brookfield instrumentation was used in developing target viscosities for the standardization of nectar-thick and honey-thick barium products that are used during videofluoroscopic evaluations of swallowing [21].…”

Section: Measurement Proceduresmentioning

confidence: 99%

See 1 more Smart Citation

Viscosity Measurements of Nectar- and Honey-thick Liquids: Product, Liquid, and Time Comparisons

et al. 2005

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This study compared the viscosity (thickness) of five different liquids thickened to nectar- or honey-like consistencies with a variety of thickening products. Samples were prepared using manufacturer guidelines and viscosity was measured at the recommended time to thicken (standard) and also after 10 and 30 min. Centipoise (cP) measurements of the samples were compared across products and within product lines for each level of thickness at all three time periods. Statistical analysis showed that the viscosity of a nectar- or honey-like liquid was highly dependent on the type of thickening product and the time it was allowed to thicken. Variability in viscosity measurements also was noted within a product line for thickening various liquids. Results are discussed in relation to the National Dysphagia Diet guidelines for nectar- and honey-like consistencies.

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Section: Methodssupporting

confidence: 79%

Section: Measurement Proceduresmentioning

confidence: 99%

Viscosity Measurements of Nectar- and Honey-thick Liquids: Product, Liquid, and Time Comparisons

et al. 2005

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“…Conversely, mechanical soft or pureed textures are prescribed to facilitate safe and efficient bolus transfer for patients who have difficulty manipulating solid or particulate food textures [4,5]. Nonetheless, little empirical evidence exists to support or guide the use of texture modifications as an intervention for dysphagia [6]. A recent initiative, launched by a working group of the American Dietetic Association, has proposed the adoption of standard terminology and rheological boundaries for four classes of liquid consistency: thin, nectar-thick, honey-thick, and spoon-thick [7].…”

mentioning

confidence: 99%

Influence of Bolus Consistency on Lingual Behaviors in Sequential Swallowing

Steele

Lieshout

2004

Dysphagia

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Thickened liquids are a commonly recommended intervention for dysphagia. Previous research has documented differences in temporal aspects of bolus transit for paste versus liquid consistencies; however, the influence of liquid viscosity on tongue movements during swallowing remains unstudied. We report an analysis of the influence of bolus consistency on lingual kinematics during swallowing. Electromagnetic midsagittal articulography was used to trace tongue body and dorsum movement during sequential swallows of three bolus consistencies: thin, nectar-thick, and honey-thick liquids. Rheological profiling was conducted to characterize viscosity and density differences among six liquids (two of each consistency). Eight healthy volunteers participated; four were in a younger age cohort (under age 30) and four were over the age of 50. The primary difference observed across the liquids of interest was a previously unreported phenomenon of sip-mass modulation; both flavor and density appeared to influence sip-sizing behaviors. Additionally, significantly greater variability in lingual movement patterns was observed in the older subject group. Systematic variations in lingual kinematics related to bolus consistency were restricted to the variability of downward tongue dorsum movement. Otherwise, the present analysis failed to find empirical evidence of significant modulations in tongue behaviors across the thin to honey-thick consistency range.

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“…In the present study there is a significant statistical difference before swallow therapy and after therapy of NOMS & PAS scores and the (96.7%) of patient was got discharged on soft diet along with thin liquids among which few are suggested to continue the swallow maneuver and few are not [23,24]. Patient who has received both active and passive exercises along with compensatory strategies and showed good improvement.…”

Section: Swallow Maneuversmentioning

confidence: 65%

"Impact of Aspiration and Early Swallow Therapy in Acute Stroke Patients"

K¹

2017

OARA

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The study focuses on role of early swallow therapy in acute stroke patients. Materials and methods:We enrolled 112 acute stroke patients from December 2015-January 2016, among which 91 patients had swallowing difficulty as assessed on fifth day of stroke onset. Impact of type of stroke, size/site of lesion on swallowing difficulty was also assessed. All patients with base GCS-E4M6 VT/V5 were included. Swallowing scoring was done as per National Outcomes Measurements System (NOMS) 8-point Penetration Aspiration scale (PAS). The patients who had aspiration on fifth day received 30 minutes of swallowing therapy for three consecutive days. After three days of therapy swallowing was re-evaluated.Results: Out of 112 of acute stroke patients 91 (81.25%) patients had dysphagia out of which aspiration was present in 66 (72.5%) patients in their initial swallow evaluation. We couldn't find any significant impact of Age, Gender, and Type of stroke, Size/Site of lesion on dysphagia/Aspiration. All patients had significant swallowing improvement after therapy on NOMS 8-point PAS (P<0.001). When comparing the result from Day 5 to Day 45 follow up, we found significant improvement in patients eating solid and thickliquidsaftertherapy(p<0.001). Conclusion:Early swallow therapy is an effective way to treat dysphagia and prevent aspiration.

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Defining Physical Properties of Fluids for Dysphagia Evaluation and Treatment

Cited by 68 publications

References 7 publications

Viscosity Measurements of Nectar- and Honey-thick Liquids: Product, Liquid, and Time Comparisons

Viscosity Measurements of Nectar- and Honey-thick Liquids: Product, Liquid, and Time Comparisons

Influence of Bolus Consistency on Lingual Behaviors in Sequential Swallowing

"Impact of Aspiration and Early Swallow Therapy in Acute Stroke Patients"

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