Anesthesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.undergoing elective surgery, regardless of gender, aged 18 years to 65 years; 2.American Society of Anesthesiologists (ASA) physical status 1 or 2; 3.Body mass Index (BMI)18-24 kg/m2.
Exclusion criteria
Exclusion criteria: 1.preoperative stimulation, such as fracture, indwelling gastric tube or catheter; 2.organ dysfunction in heart, brain, lung, liver and kidney; 3.anaesthesia allergy or contraindication,such as glaucoma, myasthenia gravis; 4.endocrine diseases ,such as hyperthyroidism or hypothyroidism ,electrolyte disorder ,pheochromocytoma and so on; 5.with a long history of drugs affecting autonomic nervous function; 6.with neurological diseases or mental disorders.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| peripheral perfusion index;heart rate variability;Systolic cerebral blood flow velocity;Diastolic cerebral blood flow velocity;Mean cerebral blood flow velocity;pulsatility index;resistance index; | — |
Secondary
| Measure | Time frame |
|---|---|
| mean arterial pressure;heart rate;Cerebral oxygen satiety; | — |
Countries
China
Contacts
Lianyungang Second People's Hospital