Page 15 - 北京京煤集团总医院第十届·2022学术年会论文集

北京京煤集团总医院 第十届·2022 学术年会论文集

mode. Especially nausea, the incidence rate of it in nasal breathing group was less than the nasal

inspiration and oral expiration group. The results of this study are not consistent with the results

[9]
reported by Yang DY . The main reason for the analysis is that the gastroscope as an invasive
operation can cause physical stress in some subjects. When the gastroscope enters the esophagus

and stomach cavity through the throat, the physical stimulation to the inner wall causes the
pharyngeal tension reflex, which leads to the occurrence of adverse reactions such as nausea [10] .

When the subject adopting the nasal inspiration and oral expiration mode, in the expiration stage,

the nasal cavity airway outlet is closed under the action of nerve control, and the gas is exhaled

from the oral airway after passing through the glossopharyngeal plane. Compared with exhaling

through the nose, the maximum flow rate of exhaled gas is increased, and the pressure drop is

mainly concentrated in the oral cavity, which doubles during exhalation, resulting in disturbance

of the airflow in the laryngeal cavity [11] . When the air flows through the throat and mouth to

exhale out of the body, the air flow disorder state and the influence state caused by gastroscope

stimulation overlap, which increases the occurrence and degree of adverse reactions. When the

subject adopting the breathing mode of nasal breathing, in the expiration stage, the air flow mainly

reaches the oropharynx through the posterior wall of the laryngopharynx, and then flows into the
nasal cavity through the posterior wall of the nasopharynx, and finally the air is exhaled through

the nasal cavity. This process reduces the impact of airflow disturbance in the laryngeal cavity
compared with the nasal inspiration and oral expiration mode, and also decreases the occurrence

of related adverse reactions and the degree of adverse reactions. Therefore, in the process of non-

analgesic and sedative gastroscopy, the subjects adopt the breathing mode of nasal breathing,

compared with the nasal inspiration and oral expiration mode, the occurrence of adverse reactions

such as nausea, coughing, and belching can be reduced to a certain extent. And it can also improve

the patient's tolerance to non-analgesic and sedative gastroscopy to a certain extent.

The results of the study showed that the VAS score of the nasal breathing group was significantly

lower than that of the nasal inspiration and oral expiration group, indicating that the subjects who

adopted the nasal breathing mode during the non-analgesic and sedative gastroscopy were more

comfortable than the nasal inspiration and oral expiration mode. The main reason for the analysis is

that when the subject adopted the breathing mode of nasal inspiration and oral expiration during the

non-analgesic and sedative gastroscopy process, in the expiration stage, the air is often exhaled

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