Gastrointestinal diseases
Conditions
Interventions
A group:After pre oxygenation and anesthesia induction, enter the gastroscopy at the time when the heart rate begins to decrease, and tilt the head back about 45 °
B group:The timing selection for gastroscopy includes disappearance of consciousness, no response to mandibular support, disappearance of eyelash reflex, and the rest is consistent with Group A
C group:No pre oxygen therapy, the rest is the same as Group A
D group:No pre oxygen therapy, the rest is the same as Group B
E group:Perform pre oxygen therapy, with the head not tilted back when entering the gastroscopy, and the rest consistent with Group D
F group:No pre oxygen therapy, the rest is the same as Group E
Sponsors
The 3rd Medical Center of the General Hospital of the People's Liberation Army of China
Eligibility
Sex/Gender
All
Age
18 Years to 100 Years
Inclusion criteria
Inclusion criteria: The patient is not less than 18 years old, regardless of gender or ethnicity; Intended for non emergency gastroscopy and colonoscopy diagnosis and treatment under deep sedation; ASA grades I to III.
Exclusion criteria
Exclusion criteria: (1) Refusal to participate in this study; (2) Elderly patients over 73 years old; (3) Individuals with mental or neurological disorders, suspected dementia, or memory impairment; Severe impairment of auditory, visual, and language system functions; COPD patients (4) with nasal obstruction and inability to receive nasal ventilation; (5) Identify or suspect the misuse or long-term use of anesthetic sedatives and analgesics; (6) Individuals with contraindications or allergies to midazolam, dacron, propofol, and etomidate; (7) Acute phase of upper respiratory tract infection with symptoms such as cough and sputum production; (8) Full stomach, fasting for less than 8 hours, abstaining from drinking for less than 2 hours, and taking the last laxative less than 3 hours before diagnosis and treatment; (9) Patients with achalasia of the cardia who have not undergone surgical treatment and suspected upper gastrointestinal obstruction with a risk of reflux aspiration; (10) Cervical spondylosis with severe restriction of head tilt back.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The state of gastroscopy entering the glottis of the pharynx (including movement and morphology); | — |
Secondary
| Measure | Time frame |
|---|---|
| First rate of decrease in oxygen saturation;The time when the doctor found the pear shaped pit;The time when the physician found the entrance to the esophagus;Number of chin supports;Proportion of fully exposed glottal structure;Intraoperative body movement incidence;The incidence of coughing during surgery;Incidence of hypoxemia (SpO2<92%); | — |
Countries
CHINA
Contacts
Public ContactBOYAN LIU
The 3rd Medical Center of the General Hospital of the People's Liberation Army of China
Outcome results
None listed