The Effect of Gag Reflex on Cardiac Sympatovagal Tone

Hosseini, Seyed Mehran; Jamshir, Mohsen; Maleki, Ali

doi:10.5001/omj.2012.57

Cited by 6 publications

(6 citation statements)

References 13 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This study was superior in terms of the sample size to some studies and inferior to others (10,11). It is worthy to note that having rigorous inclusion criteria leads to limited sample size (12,13).…”

Section: Discussionmentioning

confidence: 73%

“…The method of this study was similar to that of Hosseini et al study that appraised the role of the parasympathetic system on cardiovascular stimulus but they evoked the posterior region of the palate by an electric device at two frequencies (10). For achieving the goal of this study, the use of such device was not acceptable although, in both studies, the stimulation of the parasympathetic system made no significant changes (10,18,19).…”

Section: Discussionmentioning

confidence: 90%

“…Superiorities of our work to recent studies can be summarized as follows: evaluating more complete cardiac parameters, having rigorous inclusion criteria, and having a special target group (the edentulous elderly). Among different dental procedures, the maximum stimulation of the gag reflex occurs during maxillary dental impression that was the point of attention in this study while ignored in previous studies (10,14).…”

Section: Discussionmentioning

confidence: 93%

See 2 more Smart Citations

Could Cardiovascular Parameters Be Affected by Dental Impression?

et al. 2019

View full text Add to dashboard Cite

Background: The frequency of cardiovascular disease increases with age. Dental procedures as stressful triggers may cause unpredictable changes in the function of the cardiovascular system. Impression is an inevitable dental procedure. Objectives: Since upper jaw impression stimulates the sensory terminals of nerves, especially vagus, this study was conducted to evaluate the changes in blood pressure, heart rate, and pulse pressure due to dental impression. Methods: This observational study was performed on individuals who referred to the Prosthetic Department of Yazd Dental School. The sample was composed of 46 individuals, including 26 women and 20 men, who fulfilled the inclusion criteria and signed written consent forms. The severity of gag reflex was measured and just individuals with moderate gag reflex entered the study. Impression was carried out in the upper jaw in the upright position and rest condition. Blood pressure, pulse rate, and pulse pressure were measured and compared before and immediately after impression procedure. Taking into account the significance level of 5%, the test power of 80%, and blood pressure standard deviation of 4, and to achieve a significant difference of at least 2 mmHg in the groups, 46 people were needed in the study. Data were analyzed by SPSS 18 and t test. Results: Systolic and diastolic blood pressure, heart rate, and pulse pressure were measured before and after dental impression. The difference between men and women was significant only for pulse pressure at both stages (P = 0.02). There was also a statistically significant difference in pulse pressure before and after impression only in women (P = 0.049). There was no significant difference in men. Conclusions: Common dental procedures such as impression could not significantly alter blood pressure and pulse rate.

show abstract

Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 93%

See 1 more Smart Citation

Could Cardiovascular Parameters Be Affected by Dental Impression?

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Hosseini et al. induced the gag reflex in 12‐seated volunteer college students by using a cotton cover swab soaked with water as a touch stimulus to the posterior wall of the pharynx, and investigated the effects of gagging on the heart in respect to the balance between sympathetic and parasympathetic nervous activities . In this study, participants with a prior history of a severe gagging problem were excluded.…”

Section: Discussionmentioning

confidence: 99%

Autonomic nervous activity of patients with gagging problems during dental mirror insertion

Sakamoto

Fukuda

Saita

et al. 2015

Special Care in Dentistry

View full text Add to dashboard Cite

show abstract

“…The results indicate the gag reflex can stimulate the VN [78]. Some people as part of their oral hygiene scrape their tongue following brushing their teeth.…”

Section: Gag Reflexmentioning

confidence: 91%

Can natural ways to stimulate the vagus nerve improve seizure control?

Yuen

Sander

2017

Epilepsy & Behavior

View full text Add to dashboard Cite

The vagus nerve (VN) is the longest cranial nerve innervating the neck, thorax and abdomen, with afferent fibres transmitting a range of interoceptive stimuli and efferent fibres to somatic structures and autonomic preganglions. Over the last few decades, electrical stimulation of the VN using implanted devices (VNS) has been developed leading to its approval for the treatment of epilepsy and depression. More recently non-invasive devices to stimulation the VN have been developed. The VN has many functions and the activity that is most amenable to assessment is its effect in controlling the cardiac rhythm. This can be easily assessed by measuring heart rate variability (HRV). Decreased HRV is a result of poorer vagal parasympathetic tone and is associated with a wide range of ill health conditions including a higher risk of early mortality. People with epilepsy, particularly those with poorly controlled seizures have been shown to have impaired parasympathetic tone. So, might natural ways to stimulate the VN, shown to improve parasympathetic tone as indicated by increased HRV, improve seizure control? There are numerous natural ways that have been shown to stimulate the VN, improving HRV and hence parasympathetic tone. These natural ways fall mainly into 3 categories -stress reduction, exercise and nutrition. Though the natural ways to stimulate the VN have been shown to increase HRV, they have not been shown to reduce seizures. The exception is listening to Mozart's music which has been shown to increase parasympathetic tone and decrease seizures. Clearly much more work is required to examine the effect of the various ways to increase HRV on seizure occurrence.

show abstract

The Effect of Gag Reflex on Cardiac Sympatovagal Tone

Cited by 6 publications

References 13 publications

Could Cardiovascular Parameters Be Affected by Dental Impression?

Could Cardiovascular Parameters Be Affected by Dental Impression?

Autonomic nervous activity of patients with gagging problems during dental mirror insertion

Can natural ways to stimulate the vagus nerve improve seizure control?

Contact Info

Product

Resources

About