Page 14 - 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

of non-analgesic and sedative gastroscopy-related adverse reactions.

Airway ventilation is critical to the subject to maintain a stable life state during non-analgesic and

sedative gastroscopy, and airway ventilation is mainly completed by the subject's respiration.
During the operation of gastroscopy, the subject adjusts the breathing mode to cooperate with the

inspection operation, and the most commonly used breathing modes of the subjects are the nasal
inhalation and nasal expiration, namely the nasal breathing mode and the nasal inspiration and oral

expiration mode. The subjects in the nasal breathing group adopted the breathing mode of nasal

inhalation and nasal exhalation throughout the operation. In the nasal inspiration stage, the air flow

mainly passed through the middle and lower parts of the nasopharynx to the oropharynx, and most

of the air flow passed through the front side of the pharynx. It flows into the larynx to complete the

inhalation of external gas. During expiration, the airflow mainly passes through the posterior wall

of the laryngopharynx to the oropharynx, and then flows into the nasal cavity through the posterior

wall of the nasopharynx to complete the exhalation of the gas in the body. The subjects in nasal

inspiration and oral expiration adopted the breathing mode of nasal inspiration and oral expiration

throughout the operation process. In this breathing mode, in the nasal inspiration stage, the air flow

mainly passed through the middle and lower parts of the nasopharynx to the oropharynx, and most
of the air flow passed through the pharynx. In the expiration stage, under the control of nerve, the

outlet of the nasal cavity airway is closed, and the gas passes through the glossopharyngeal plane
and is exhaled from the oral airway, thereby completing the internal and external gas exchange,

sustaining a stable blood oxygen saturation, and maintaining a stable state of life.

By observing the application effect of the two breathing modes in non-analgesic and sedative

gastroscopy, this study found that the incidence of nausea, cough, belching, restlessness and other

adverse reactions in the nasal breathing group during gastroscopy was significantly less than that

in the nasal inspiration and oral expiration group. By comparing the different adverse reactions of

the two groups, it was found that as one of the adverse reactions, nausea occurred in the nasal

breathing group was less than that in the nasal inspiration and oral expiration group. There were

no significant differences in the occurrence of adverse reactions such as cough, belching, throat

discomfort，restlessness and chest tightness between the two groups. The results of the study

showed that the subjects who used the nasal breathing mode to breathe during the non-analgesic

and sedative gastroscopy had fewer adverse reactions than the nasal inspiration and oral expiration

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