Enhancing Salty Taste Perception in Stroke Patients
Author Information
Author(s): Katsuki Masahito, Fukushima Taiki, Wada Naomichi, Goto Tetsuya, Imai Ayana, Hanaoka Yasuko, Yasude Takuji, Kaneko Kazuma, Horiuchi Tetsuyoshi
Primary Institution: Japanese Red Cross Society Suwa Hospital
Hypothesis
This study aimed to demonstrate and quantitatively evaluate the taste enhancement effect of electrical taste stimulation (ETS) in patients admitted to a hospital due to stroke.
Conclusion
ETS significantly enhances salty taste perception in stroke patients without altering salt concentration, potentially aiding in reducing daily salt intake.
Supporting Evidence
- Twenty patients underwent psychophysical experiments to assess the effects of ETS on salt taste perception.
- The median salt taste thresholds without ETS and with ETS were 0.7% and 0.6%, respectively.
- Perceived concentration for 0.8% increased from 0.8% to 1.0% with ETS.
- Seventeen of twenty patients (85%) experienced enhanced salt perception for 1.0% salt filter paper.
Takeaway
This study shows that a special electrical device can help stroke patients taste salt better, which might help them eat less salt.
Methodology
Twenty stroke patients underwent two psychophysical experiments to assess the effects of ETS on salt taste perception using salt-impregnated filter paper.
Potential Biases
The lack of randomization in the order of conditions and absence of a sham stimulation control group could introduce bias.
Limitations
The sample size was small, and the statistical significance of some findings was marginal.
Participant Demographics
The mean age of participants was 67.8 years, with 14 patients having a history of hypertension.
Statistical Information
P-Value
p = 0.041 for perceived concentration increase with ETS at 0.8% salt and p < 0.001 for 1.0% salt.
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website