Background
Dysphagia is common in neurological disease. However, our understanding of swallowing and its central nervous control is limited. Sensory information plays a vital role in the initiation of the swallowing reflex and is often reduced in stroke patients. We hypothesized that the sensitivity threshold of the anterior faucial pillar could be facilitated by either electrical stimulation (ES) or taste and smell information.
Methods
The sensitivity threshold was measured by ES in the anterior faucial pillar region. The measurement was repeated 5 minutes after baseline. Thirty minutes after baseline, the participants underwent a test for taste and smell. Immediately after the test, the ES was repeated.
Results
Thirty healthy volunteers with a mean age of 27±5.1 participated in the trial. Mean sensitivity threshold at baseline was 1.9mA ± 0.59mA. The values 5 minutes after baseline (1.74mA ± 0.56mA, p=0.027) and 30 minutes after baseline (1.67mA ± 0.58mA, p=0.011) were significantly lower compared to the baseline, but there was no difference between the latter (p=0.321).
Conclusion
After 5 minutes, a potentially facilitating effect was found on oral sensitivity by ES of the faucial pillar area. Thirty minutes later, this effect was still present.
Figure 1
Figure 2
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Posted 15 Mar, 2021
On 09 Apr, 2021
Received 24 Mar, 2021
Received 24 Mar, 2021
Received 24 Mar, 2021
Received 24 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
Invitations sent on 08 Mar, 2021
On 08 Mar, 2021
On 03 Mar, 2021
On 03 Mar, 2021
On 26 Feb, 2021
Posted 15 Mar, 2021
On 09 Apr, 2021
Received 24 Mar, 2021
Received 24 Mar, 2021
Received 24 Mar, 2021
Received 24 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
On 08 Mar, 2021
Invitations sent on 08 Mar, 2021
On 08 Mar, 2021
On 03 Mar, 2021
On 03 Mar, 2021
On 26 Feb, 2021
Background
Dysphagia is common in neurological disease. However, our understanding of swallowing and its central nervous control is limited. Sensory information plays a vital role in the initiation of the swallowing reflex and is often reduced in stroke patients. We hypothesized that the sensitivity threshold of the anterior faucial pillar could be facilitated by either electrical stimulation (ES) or taste and smell information.
Methods
The sensitivity threshold was measured by ES in the anterior faucial pillar region. The measurement was repeated 5 minutes after baseline. Thirty minutes after baseline, the participants underwent a test for taste and smell. Immediately after the test, the ES was repeated.
Results
Thirty healthy volunteers with a mean age of 27±5.1 participated in the trial. Mean sensitivity threshold at baseline was 1.9mA ± 0.59mA. The values 5 minutes after baseline (1.74mA ± 0.56mA, p=0.027) and 30 minutes after baseline (1.67mA ± 0.58mA, p=0.011) were significantly lower compared to the baseline, but there was no difference between the latter (p=0.321).
Conclusion
After 5 minutes, a potentially facilitating effect was found on oral sensitivity by ES of the faucial pillar area. Thirty minutes later, this effect was still present.
Figure 1
Figure 2
Loading...