Effect of Dexmedetomidine on Levels of Plasma Inflammatory Factor in Asthma Patients Undergoing General Anesthesia
Anesthesia, Asthma
About this trial
This is an interventional prevention trial for Anesthesia focused on measuring Dexmedetomidine, Inflammatory factor, Inflammatory mediator, Cytokines, Asthma
Eligibility Criteria
Inclusion Criteria:
- Obtain informed consent
- Elective general anesthesia surgery, surgery time 1 ~ 3 hours.
- 20 patients with a history of asthma.
- 60 patients with no history of asthma.
- American Society of Anesthesiologists (ASA)classification:class I~II.
- Aged between 18 and 65 years old.
Exclusion Criteria:
- SBP≥180 mmHg or <90 mmHg, DBP≥110 mmHg or <60 mmHg.
- Serious heart, brain, liver, kidney, lung, endocrine diseases or serious infections.
- Hematopoietic dysfunction or bleeding tendency and hemorrhagic disease.
- A neuromuscular system disease.
- Airway and lung surgery.
- Predict possible or happened difficult airway.
- Immune function defect.
- Sure/suspected abuse of narcotic analgesics or drugs or alcohol dependence.
- The test drug allergy or have other contraindications in patients.
- Childbearing age women not to take appropriate contraception, pregnancy or lactation.
- Participated in other clinical drug research in the last 30 days.
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Placebo Comparator
Experimental
Experimental
Placebo Comparator
non-asthma group
Dexmedetomidine A
Dexmedetomidine B
Control group
Non-asthma history Infusion of normal saline(1μg/kg) at 10 minutes before anesthesia induction. Infusion of normal saline at 0.4μg•kg-1•h-1during anesthesia maintenance. Stop infusion of normal saline at 10 minutes before the end of surgery.
With a history of asthma Infusion of dexmedetomidine(1μg/kg) at 10 minutes before anesthesia induction. Infusion of dexmedetomidine at 0.4μg•kg-1•h-1during anesthesia maintenance. Stop infusion of dexmedetomidine at 10 minutes before the end of surgery.
With a history of asthma Infusion of dexmedetomidine(1μg/kg) at 10 minutes before anesthesia induction. Infusion of dexmedetomidine at 0.7μg•kg-1•h-1during anesthesia maintenance. Stop infusion of dexmedetomidine at 10 minutes before the end of surgery.
With a history of asthma Infusion of normal saline(1μg/kg) at 10 minutes before anesthesia induction. Infusion of normal saline at 0.4μg•kg-1•h-1during anesthesia maintenance. Stop infusion of normal saline at 10 minutes before the end of surgery.