Mortality associated with difficult airway in anesthesia is up to 30%. So, it is urgent to find a safe and effective method for intubation. Awake tracheal intubation which is used to retain spontaneous breathing is one of the important measures to ensure the safety of the patients with difficult airway in anesthesia. Sufentanil is used to provide good analgesia and can effectively inhibit the reaction of awake tracheal intubation, however, the outstanding problem is serious respiratory depression after intravenous sufentanil injection. Few study showed that dezocine is a kappa opioid antagonist related to mild respiratory depression and can prevents sufentanil-induced cough during general anesthesia induction.It is necessary to carry out large-scale, multi-center, randomized, controlled clinical study to determine whether dezocine prevents sufentanil-induced respiratory depression and whether dezocine combined sufentanil is a safe and effective method for awake tracheal intubation.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
520
dezocine(Dez A:0.05 mg/kg,Dez B:0.1 mg/kg and Dez C:0.15 mg/kg, diluted to 5 ml respectively) is given for 10 seconds after surface anesthesia
The same amount of saline is given for 10 seconds after surface anesthesia
Anqing Municipal Hospital
Anqing, Anhui, China
Chaohu Affiliated Hospital of Anhui Medical University
Chaohu, Anhui, China
Second Affiliated Hospital of Anhui Medical University
Hefei, Anhui, China
The second People's Hospital of Wuhu
Wuhu, Anhui, China
Sedation assessment
Observer's assessment of alertness/sedation(OAA/S) scale is used to assess the depth of sedation during anesthesia induction
Time frame: anesthesia induction
The occurrence of cough response
The cough scale is used to assess cough response the during anesthesia induction
Time frame: anesthesia induction
The variation of blood pressure
The variation of blood pressure(mmHg) during anesthesia induction
Time frame: anesthesia induction
The variation of heart rate
The variation of heart rate(bpm)during anesthesia induction
Time frame: anesthesia induction
The variation of pulse oxygen saturation
The variation of pulse oxygen saturation(%) during anesthesia induction
Time frame: anesthesia induction
The occurrence of cardiovascular events
The incidence of hypertension, hypotension, tachycardia and bradycardia from beginning of the anesthesia to the time the patients discharge, up to 3rd day after the surgery is recorded
Time frame: from beginning of the anesthesia to the time the patients discharge, up to 3rd day after the surgery
The occurrence of treatment-related adverse events
The incidence of treatment-related adverse events as assessed by CTCAE v4.0
Time frame: from beginning of the anesthesia to the time the patients discharge, up to 3rd day after the surgery
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.