Otitis media
Conditions
Interventions
1:5000 dose group:The external auditory canal subcutaneous injection of 1:5000 concentration of epinephrine mixed with normal saline
1:10000 dose group:The external auditory canal subcutaneous injection of 1:10 000 concentration of epinephrine mixed with normal saline
1:20000 dose group:The external auditory canal subcutaneous injection of 1:20 000 concentration of epinephrine mixed with normal saline
1:40000 dose group:The external auditory canal subcutaneous injection of 1:40 000 concentration of epinephrine mixed with normal saline
Sponsors
Department of Otolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine,Shanghai, China
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1) No the history of otoendoscopic surgery; 2) ASA grade I-II; 3) Otoendoscopic surgery under general anesthesia; 4) Aged between 18 to 65 years.
Exclusion criteria
Exclusion criteria: 1) History of external auditory canal injury; 2) History of coronary artery disease, bleeding disorders, and kidney disease; 3) Patients who refuse to sign informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the time of raising tympanomeatal flap; | — |
Secondary
| Measure | Time frame |
|---|---|
| Surgical field clarity;Systolic blood pressure;Systolic blood pressure;Mean arterial pressure;Heart rate;Ecg ST segment; | — |
Countries
China
Contacts
Public ContactWang Zhaoyan
Department of Otolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine
Outcome results
None listed