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Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Children undergoing outpatient magnetic resonance examination (single site); 2. Age 1-6 years old, regardless of sex; 3. ASA rating I-II; 4. The legal guardian of the child is willing to participate in this study and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Malnourished or obese children; 2. Cushing's syndrome, pituitary tumor, adrenal tumors such as endocrine system diseases; 3. Severe respiratory diseases (obstructive sleep apnea syndrome, acute respiratory tract infection, uncontrolled asthma, active massive hemoptysis, pulmonary hypertension, etc.); 4. Any congenital heart disease, acute heart failure, atrioventricular block, or severe arrhythmia; 5. Infectious heart disease such as myocarditis or endocarditis; Sepsis; Pneumonia; 6. Paients suffering from mental system diseases (autism, ADHD, schizophrenia), abnormal brain development and cognitive dysfunction; 7. Anemia or thrombocytopenia: HbULN+3s and/or APTT>ULN+10s); 9. Abnormal liver function: AST and/or ALT>=2.5xULN, TBIL>=1.5xULN; 10. Abnormal renal function: urea or urea nitrogen >=1.5xULN, blood creatinine greater than the upper limit of normal value; 11. Patients whose blood glucose was not satisfactorily controlled (random blood glucose >=11.1mmol/L during the screening period); 12. Allergic or contraindicated to benzodiazepines, opiates, etomidate, propofol, ketamine and other drugs and their components; 13. Patients judged to have difficulty managing the respiratory tract (modified Markov score level ?); 14. Participated in any clinical drug trial as a subject and used the test drug within the last 3 months; 15. Take monoamine oxidase inhibitors for 2 weeks; 16. Taking sedative drugs, antiemetic drugs, motion sickness drugs and anti-pruritus drugs within 48 hours before surgery; 17. Other factors that might interfere with the results of the experiment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Success rate of magnetic resonance examination; | — |
Secondary
| Measure | Time frame |
|---|---|
| Children's behavior scores at the time of drug administration;Modified Ramsay sedation score at the beginning of examination;Time from taking medicine to starting examination (T1);Whether remedial sedation has occurred;Inspection time (T2);Parent satisfaction;Awakening time (T3, the time from the end of the examination to the child's spontaneous opening of eyes); | — |
Countries
China
Contacts
Xi'an International Medical Center Hospital